SEBM04230107
KOMATSU
WA3504 MACHINE
MODEL
SERIAL
WA350-
1
10001
l
This shop manual available items
Please
and up
attachments consult
and optional
equipment
your local Komatsu
distributor
that are not for those
you may require.
Materials
l
may contain
in your area.
No.
and specifications
WA350-1
mount
For details
of the engine,
05-90(03)03561
the S6Dll
are subject
O-l
to change
without
notice.
engine.
see the 110
Series
Engine
Shop Manual.
oo-1 a
CONTENTS No. of page
10
20
40
ENGINE 11
STRUCTURE
12
TESTING
13
DISASSEMBLY
POWER
60
80
90
00-2 0
AND ADJUSTING
.. . . .. . . .
AND ASSEMBLY..
........
...
. .. .
.
.
.....
. . .. .
.
.
1 l-l 12-1 13-1
TRAIN
STRUCTURE
22
TESTING
23
DISASSEMBLY
AND ASSEMBLY
24
MAINTENANCE
STANDARD
AND FUNCTION
AND ADJUSTING
STEERING
............................................... ................................................. .............................................
.................................................
21-1 22-l 23-l 24-l
SYSTEM
41
STRUCTURE
42
TESTING
43
DISASSEMBLY
AND FUNCTION
BRAKE AND
............................................... .................................................
AND ADJUSTING
MAINTENANCE
AND ASSEMBLY STANDARD
AND FUNCTION
...............................................
STRUCTURE TESTING
53
DISASSEMBLY
AND ASSEMBLY
54
MAINTENANCE
STANDARD
.................................................
AND ADJUSTING
EQUIPMENT
STRUCTURE
62
TESTING
............................................... .................................................
63
DISASSEMBLY
AND ASSEMBLY
64
MAINTENANCE
STANDARD
AND
STRUCTURE
82
TESTING
83
DISASSEMBLY
42-l 43-l 44-l
51-1 52-l 53-l 54-l
SYSTEM
AND ADJUSTING
ELECTRIC
.............................................
.................................................
AND FUNCTION
81
41-1
AIR SYSTEM
52
61
.............................................
.................................................
51
WORK
... .. . .
.................................................
21
44
50
AND FUNCTION
.............................................
.................................................
ELECTRONIC
AND FUNCTION
AND ADJUSTING
62-l 63-l 64-l
SYSTEM
............................................... .................................................
AND ASSEMBLY
61-1
.............................................
81-1 82-l 83-l
OTHERS AND FUNCTION
...............................................
91
STRUCTURE
93
DISASSEMBLY
97
GEAR PUMP ................................................................
AND ASSEMBLY
.............................................
91-1 93-l 97-l
WA350-1
must
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97407 97-008 97-101 97-102 97-103 97-104 97-105 97-106 97-107 97-108 97-109 97-110 97-111 97-112 97-113 97-114 97-115 97-116 97-117
00-2 -4 a
WA350-1
A Proper The
service
service
manual
and repair and
injury
to workers,
cautions
in this
followed
carefully.
safety,
designed
manual.
The cautions
If any dangerous
and take the necessary
by Komatsu
of operation.
by Komatsu
the symbols
A
actions
of your machine.
and
Some
described
of these
in this
operations
re-
used to mark safety
pre-
for the purpose.
and
*& are 4 these
accompanying situation
NOTICE
for the safe operation
recommended
and safe methods
specially
SAFETY
important
techniques
effective
quire the use of tools To prevent
is extremely
repair
are both
IMPORTANT
symbols
should
arises or may possibly
always
be
arise, first consider
to deal with the situation.
A SAFETY GENERAL
6. Decide
PRECAUTIONS
a place
keep tools Mistakes Read
in operation
the
are extremely
Operation
carefully
BEFORE
and
dangerous.
Maintenance
operating
Manual
the
tools
and
Always
carrying
read
all
decals
the
precautions
which
2.When
out any greasing are fixed
carrying
out
or repairs,
given
on
any
operation,
safety
shoes
and helmet.
loose
work
clothes,
or clothes
parts with .
safety
wear
grinding
always
with
3. If welding
repairs
trained,
experienced
work.
When
always
wear
and
glasses
buttons
when
hitting
glasses
a grinder,
are needed,
welding
other
carry
out
have a out
welding
gloves,
clothes
carrying
inform
suited
the
work,
apron, for
controls
any operation always
procedure your
step
work,
out
workers,
erating
5. Keep
7. Before
FOR
adding
block
the
of the
hang
8. Before ground.
provided
for
working.
safety to
welding
warning
op-
other
Before
starting on
the
condition
way to use them.
and
it
the
ripper, to the
levers
the
the work
In addition,
is
or
be sure and
hang
starting
oil from
to
get
use the
when
blocks,
impossible
the
on
or
on
steps
and
handrails,
getting
Never jump
sup-
jacks
work.
and
used
or steps,
assembling,
with
Always
steps
ladders
and
insert
to prevent
control
all mud
machine.
If learn
blade,
equipment
possible,
falling.
machine
places
machine.
compartment.
is not
the
before
10. Remove
repairs,
to prevent
lower work
disassembling the
starting
signs
all
any
signs on them.
stands
or
work,
from
lock
before
REPAIR
in good
on the
two
or tracks
pin or use blocks
glasses,
with
making
moving.
If this
equipment
port
or
wheels
starting
Always
operation.
in the operator’s
the correct
areas while
on hard, level ground,
or any other
starting.
workers
UNDER
all tools
agree
before
fellow
places.
and make
WORK
oil
from
9. When
or more
any
PREPARATIONS
bucket
always
welder
carrying
when
etc.
work. 4.When
the
Never smoke
machine
safety
parts with
correct
area clean
Do not wear
a hammer.
Always
cap
in
park the machine wear
in their
the
missing. Always
to keep
to the machine.
wear
.
workshop
parts. Always
is no dirt or oil on the floor.
only
smoking.
repair
the work
there
Smoke 1. Before
parts
keep
sure that
the machine.
in the
and removed
or
off
or the
ladders off
the
on or off the machine. to
use
use a stand
the
handrails,
to provide
safe
footing.
00-3
PRECAUTIONS 11. When or
DURING
removing
the oil filler
hydraulic
loosen
pressure
them
spurting
slowly
cap, drain
measuring
to prevent
plug plugs,
Replace l
sure
the oil from
of the
remove
oil,
the
or removing
water
compo-
or air circuits,
pressure
completely
the
20. When
the
engine
when
oil
in the
circuits
is stopped,
are
hot
so be careful
rying
out
any
work
to cool before
on
the
oil
or
carwater
starting
battery.
14. When
work,
Always
the negative
(-1
that
remove
the
parts
lead
from
components,
are free from
damage.
use
lifting
ample
capacity.
Install
the
places.
use
a
slowly
equipment
other
covers
ternal
pressure
or
spring,
always
under
loosen
bolts
components, the
removing
on the
in-
from
a on
the pressure,
piping,
be careful
not
Damaged
fires. stop
the fuel
or oil
out. If any fuel or oil drips on to
wipe
floor
any
in position
wiring.
may cause electrical
the floor,
with
the bolts to remove.
or damage
spilling
hit-
are under
release
it up immediately. can cause
you
Fuel or oil
to slip,
or can
even start fires. 18.As
a general
wash
parts.
mum
of
parts.
00-4
rule,
do
In particular,
gasoline
when
not
use gasoline
to
use ,only the miniwashing
the ma-
hoses,
twisted. for
that
make
Damaged
high
care-
pressure
connecting
or installing tightening
protective
parts
two
or hand.
fingers
caught
always When
violently
be particularly
aligning
parts, torques.
parts such as guards,
vibrate
speed,
or
rotate
careful
or at
to check
correctly. holes,
never
Be careful
insert
your
not to get your
in a hole.
electrical
measuring the
24. Take
hydraulic
measuring
bled before
from
pressure
leave two
sides. Slowly
removing
17. When from
which
when
so be extremely
check
fingers
that
by the hoist or crane.
removing
break
operate
Do not work
15. When
then slowly
correct
and
the component
by
has
at the
or crane
part.
part still raised
opposite
which
equipment
a hoist
to prevent any
and hooks
not
that they are installed
23. When
lifting
Use
chains
be
installed.
which
high
first.
rope,
wires,
be damaged
parts
tubes
assembling
22. When
the wire
Always
wiring
Also,
the leads from
hoist or crane. Check
to
installing
are correctly
remove
heavy
not
pressure
are
are dangerous,
when
installing
terminal
raising
16. When
high
they
use the specified
13. Before
ting
ful
21. When
circuits.
the
will other
installing
circuits.
not to get burned. Wait for the oil and water
with
that
tubes and
they
new parts.
and
first
from
sure
water
hoses
in their
chine is being operated.
circuit. 12. The
that
again
parts with
installing
contact
disconnecting
all parts
any damaged
When
out.
Before nents
19. Be sure to assemble original places.
WORK
care
taking when
tracks
of track-type removing
either
pressure,
check
is correctly
assem-
any measurements. removing
When
rates suddenly,
tool
or installing
the
machines. the
track,
so never
end of the track.
the
track
let anyone
sepa-
stand
at
FOREWORD
This
shop
serviceman repairs effect
has been
an accurate
at every
This shop
prepared
understanding
and make judgements.
a service For
manual
Make
as an aid to improve
of the product
the
quality
and by showing
sure you understand
of repairs
by giving
the
him the correct
way to perform
of this manual
and use it to full
the contents
opportunity.
manual
mainly
contains
the necessary
technical
information
for operations
performed
in
workshop. ease
components;
of
understanding,
these chapters
STRUCTURE
AND
This section
AND
This
section
explains
section
assembling MAINTENANCE This section
the structure
of the structure,
into
chapters
into the following
and function
for
each
main
group
of
sections.
of each component.
but also serves
explains
checks
to
be made
to be made at completion
Troubleshooting
This
is divided
divided
as reference
It serves
material
not only to give
for troubleshooting.
ADJUSTING
adjustments
DISASSEMBLY
manual
FUNCTION
an understanding TESTING
the
are further
charts AND
correlating
before
and
of the checks
after
performing
repairs,
as well
as
and repairs.
“Problems”
to “Causes”
to be followed
when
are also included
in this section.
ASSEMBLY
explains
the
order
each component,
as well as precautions
removing,
to be taken
installing,
for these
disassembling
or
operations.
STANDARD gives
the judgement
standards
when
inspecting
disassembled
parts.
NOTICE The
specifications
contained
in this
shop
time
and without
any advance
notice.
Contact
latest
manual your
are subject
to change
at any
KOMATSU
distributor
for the
information.
00-5
HOW
TO
READ
THE
SHOP
HOW
MANUAL
TO READ THE SHOP
VOLUMES
REVISED
Shop manuals are issued as a guide to carrying out repairs. They are divided as follows:
When recorded pages.
Chassis
volume:
Engine volume:
Each issued as one volume to cover all models
These various volumes are designed to avoid duplicating the same information. Therefore to deal with all repairs for any model, it is necessary that chassis, engine, electrical and attachment volumes are ready. AND
MARK
(@)a@
-.-- )
a manual is revised, an edition mark is on the bottom outside corner of the
REVISIONS Revised pages are shown at the LIST OF REVISED PAGES on the between the title page and SAFETY page.
SYMBOLS So that the shop manual can be of ample practical use, important places for safety and
UPDATING
Any additions, amendments or other changes will be sent to KOMATSU distributers. Get the most up-to-date information before you start any work.
quality
Symbol
FILING
EDITION
Issued for every machine model Issued for each engine series
Electrical volume Attachments volume
DISTRIBUTION
MANUAL
METHOD
1. See the page number on the bottom of the page. File the pages in correct order. 2. Following examples shows how to read the page number. Example 1 (Chassis volume):
are marked
with
the following
Item
symbols.
Remarks Special safety precautions are necessary when performing the work.
A Safety
Extra special safety precautions are necessary when performing the work because it is under internal pressure.
*& *
IO-3
%
Example
Item number (IO. Structure and Function) Consecutive page number for each item. 2 (Engine volume):
*
Caution
Weight
12-410
F
Unit number (I. Engine) Item number (2. Testing and Adjusting) Group No. (4. Fuel system) Consecutive page No. (Page 10 of Group 4)
3. Additional pages: Additional pages are indicated by a hyphen (-1 and number after the page number. File as in the example. Example: 1 o-4
12-203
1 o-5
12-204
00-6
Special technical precautions other precautions for preserving standards are necessary when performing work.
or
the
Weight of parts or systems. Caution necessary when selecting hoisting wire, or when working posture is important, etc. Places that require special for the tightening torque during assembly.
Tightenattention ig torque ?
Coat
Places to be coated with adhesives and lubricants
etc.
Xl, water
Places where oil, water or fuel must be added, and the capacity.
Drain
Places where oil or water must be drained, and quantity to be drained.
HOISTING
INSTRUCTIONS
HOISTING
lifted
INSTRUCTIONS
Heavy parts (25 kg or more) must be with a hoist etc. In the Disassembly
1. If a part cannot be smoothly the machine by hoisting, checks should be made: . Check for removal of all the part to the relative parts. . Check for existence of causing interference with rem-oved.
removed from the following bolts
fastening
another the part
to
part be
2. Wire ropes I) Use adequate ropes depending on the weight of parts to be hoisted, referring to the table below:
Wire ropes (Standard “Z” or “S” twist without galvanizing) Rope diameter
(mm)
Allowable
ropes
load (tons)
10
1 .o
11.2
1.4
12.5
1.6
14
2.2
16
2.8
ia
3.6
20
4.4
22.4
5.6 10.0
30 40
I a.0
50
28.0
60
40.0
The allowable load value is estimated be one-sixth or one-seventh of breaking strength of the rope used. 2) Sling wire ropes of the hook.
from
the
Slinging near the edge of the hook may cause the rope to slip off the hook during hoisting, and a serious accident can result. Hooks have maximum strength at the middle portion.
middle
100%
88%
79%
71%
41% FSO064
3) Do not sling a heavy load with one rope alone, but sling with two or more ropes symmetrically wound on to the load. Slinging with one rope may cause turning of the load during hoisting, untwisting of the rope, or slipping of the rope from its original winding position on the load, which can result in a dangerous accident.
A
4) Do not sling a heavy load with ropes forming a wide hanging angle from the hook. When hoisting a load with two or more ropes, the force subjected to each rope will increase with the hanging angles. The table below shows the variation of allowable load (kg) when hoisting is made with two ropes, each of which is allowed to sling up to 1000 kg vertically, at various hanging angles. When two ropes sling a load vertically, up to 2000 kg of total weight can be suspended. This weight becomes 1000 kg when two ropes make a 120” hanging angle. On the other hand, two ropes are subjected to an excessive force as large as 4000 kg if they sling a 2000 kg load at a lifting angle of 150”.
to the
portion 30”
go*
60” Lifting
angle
120’
150”
: 01 FSO065
00-7
STANDARD
TIGHTENING
m
TORQUE
STANDARD
1. STANDARD
TIGHTENING
TIGHTENING
TORQUE
OF BOLTS AND
The following charts give the standard tightening sections of “Disassembly and Assembly”.
torques
TORQUE NUTS of bolts and nuts. Exceptions
are given in
Width across flat (mm)
Thread diameter of bolt (mm)
I ..
I
km
Nm
10
1.35kO.15
8
13
3.2kO.3
31.4k2.9
10
17
6.7 f 0.7
65.7k6.8
12
19
11.5*1.0
112t9.8
22
18.0t2.0
177*19
24
28.5*3
279&29
6
14
-
16
13.2*
18
27
3924
383?39
20
30
56*6
549*58
22
32
76+8
24
36
94.5*
1.4
745278 10
927*98
27
41
135+15
1320+
140
30
46
175220
1720-r
190
33
50
225&25
221 Ok240
36
55
28Ok30
27502290
39
60
335t35
3280&340
This torque table does not apply to the bolts with which nylon packings or other nonto otherwise specified ferrous metal washers are to be used, or which require tightening torque. Sr Nm (newton
2.TlGHTENlNG
meter):
1 Nm + 0.1 kgm
TORQUE
OF SPLIT
FLANGE
BOLTS
Use these torques for split flange bolts.
Thread: gtl,eter (mm)
00-8
Width across flats (mm)
Tightening kgm
torque Nm
10
14
12
17
II.521
112t9.8
16
22
28.5t3
279t29
6.7kO.7
65.7 k6.8
STANDARD
TIGHTENING
TORQUE
Sealing surface
3.TlGHTENlNG Use these
TORQUE torques
Thread diameter of nut part (mm)
for
FOR
nut part
NUTS
OF FLARED
of flared.
Width across flats of nut part (mm)
r
Tightening
Nm
km
14
19
2.5kO.5
24.5 k4.9
18.
24
522
49*
19.6
22
27
822
78.5 f
19.6
24
32
1423
137.3k29.4
30
36
1823
176.5229.4
33
41
20*5
196.1
36
46
2525
245.2+49
42
55
30&5
294.2*49
COATING The recommended Nomenclature
Adhesives
Gasket
torque
coating
materials
&49
MATERIALS
prescribed
in Komatsu
Shop
Manuals
are listed
below.
Applications
Komatsu code LT-1 A
Used to apply
LT-18
Used to apply resin, rubber, metallic and non-metallic parts when a fast, strong seal is needed.
LT-2�
Preventing
LT-3
Provides an airtight, electrically Used for aluminum surfaces.
LG-1
Used with
LG-3
Heat-resistant and exhaust
LG-4
Used by itself on mounting mission cases. (Thickness
sealant
LG-5
rubber
bolts,
pads, rubber
gaskets,
nuts and plugs from
gaskets
gasket piping.
loosening
insulating
and packings
and cork plugs.
oil.
seal.
to increase
for precombustion
and leaking
sealing
effect.
chambers
surfaces on the final drive and transafter tightening: 0.07 - 0.08 mm)
Used by itself to seal grease fittings, tapered screw fittings and tapered screw fittings in hydraulic circuits of less than 50 mm in diameter.
Antif
riction
pound including
com-
(Lubricant molybde-
LM-P
Applied
to bearings
prevent
sticking,
and taper
burning
shafts
to facilitate
press-fitting
and to
or rusting.
num disulfide) Grease (Lithium Vaseline
grease)
G2-LI -
Applied to bearings, sliding parts and oil seals for lubrication, prevention and facilitation of assembling work. Used for protecting
lLT-2 is also called
LOCTITE
battery
in the shop
electrode
terminals
from
rust
corrosion.
manuals.
00-9
ELECTRIC WIRE
CODE
ELECTRIC In the wiring
diagrams,
various
colors
and symbols
This wire code table will help you understand Example:
5WB
indicates
CLASSIFICATION
a cable having
WIRE are employed
WIRING
a nominal
to indicate
the thickness
of wires.
DIAGRAMS.
number
5 and white
coating
with
black stripe.
BY THICKNESS
Copper wire
Nominal number
CODE
Number str_ands
_ Cable O.D.
Dia. TF;ands
Cross section (mm2)
Applicable
(mm)
circuit
0.85
1
11
1
0.32
1
0.88
1
2.4
1
12
1
2
1
26
1
0.32
/
2.09
I
3.1
I
20
1 Lighting, signal etc.
Starting,
lighting, signal etc.
5
65
0.32
5.23
4.6
37
Charging and signal
15
84
0.45
13.36
7.0
59
Starting
40
85
0.80
42.73
1 1.4
135
Starting
60
127
0.80
63.84
13.6
178
Starting
100
217
0.80
17.6
230
Starting
CLASSIFICATION
BY COLOR
109.1
AND
(Glow plug)
CODE
Circuits ity
\
ChTng
Class+ fication
/
GrTd
Signal
Other
G
I
L
Code
(GLI
1
-
Color
(Green & Blue)
1
-
1
White
Black
Code
WR
-
Color
White & Red
-
Code
WB
“‘Or
White & Black
2
3 &xi_
liary 4
t Code Color
-
WL White&Blue
-
Code 5
t- Color 6
00-l 0
/
WEIGHT
GENERAL
WEIGHT
A
TABLE
TABLE
This weight table is a guide for use when transporting or handling components.
(Unit: kg) 11118 and up
‘3Yl7 Engine assembly
700
700
Radiator assembly
105
105
Torque converter assembly
160
160 Lift cylinder (I piece)
Rear drive shaft
12
Front axle assembly
)
I
12
Dump cylinder
185
185
Engine hood
134
134
Front frame
1,129
1 1,129
Rear frame
1,109
1,109
Bucket link
Front differential assembly
191
191
Rear differential assembly
176
176
Rear axle assembly
P~;t&rr~carrier
assembly
II
68
1
68
!
Tilt lever
1,250 I
1,040
I
1,308 1,021
52
52
248
248
204
204
)
Planetary hub assembly (I piece)
I
Axle pivot
1 61183
( 61183
Fuel tank
1
1
100
Battery (1 piece)
44
44
210
210
Operator’s seat
37
37
Steering valve
32
32
Floor plate
75
75
Steering cylinder (1 piece)
27
27
CAB
310
310
111
111
Front/Rear
Wheel (1 piece) Tire (I piece)
Brake (1 piece)
73
100
(
73
l
l
WA350-1
: with teeth. * : with bolt on cutting edge.
00-l 1 0
TABLE
GENERAL
TABLE
0 : OIL AND
COOLANT
OF
OIL
AND
COOLANT
QUANTITIES
QUANTITIES
RESERVOIR
Engine oil pan
Brake
Transmission case
Hydraulic system Axle (Front and rear)
See NOTE (4) oiese, fue,
Fuel tank
Cooling system
each 45
each 45
52
-
LASTPAD975 No. 1
Add antifreeze
Water
NOTE: (1) When
fuel
change
sulphur
oil in the
content
oil pan
nance hours described Change
oil according
sulphur content
is less
every
than
periodic
(2) When
0.5%.
oil of
in this manual. to the following
starting
perature
mainte-
table
even
if fuel
SAEIOW, though
to 10°C
is above 0.5%. (3)
the engine
of lower
in an atmospherric
then 0°C.
tem-
be sure to use engine
SAEIOW-30
and
an atmospheric
SAEI
5W-40,
temperature
goes
up
more or less in the day time.
Use API classification classification
CD as engine
CC, reduce
the engine
oil and if API oil change
in-
terval to half. (4)
For axle oil, use only recommended SHELL:
Above 1.0%
l/4 of regular interval
I
*
RPM TRACTOR
CHEVRON:
TRACTOR
TEXACO:
TDH OIL
MOBIL:
MOBILAND
It is possible
American
SAE:
Society
Specified
capacity:
Refill capacity:
00-12 0
Society
of Testing
of Automotive
HYDRAULIC
HYDRAULIC SUPER
to substitute
FLUID
FLUID
UNIVERSAL
engine
oil CLASS-CD
for axle oil.
and Material
Engineers
Total amount
Amount
oil as follows.
TT or TD
CALTEX:
SAEBO
ASTM:
DONAX
of oil including
oil for components
of oil needed to refill system
and oil in piping.
during normal inspection
and maintenance.
WA350- 1
ENGINE
11 STRUCTURE
AND FUNCTION
Engine mount Radiator
..............................
..................................
Fueltankandpiping Engine control
WA350-1
11-2 11-3
........................
11-4
.............................
1 1-5
11-1
STRUCTURE
AND
FUNCTION
ENGINE
MOUNT
ENGINE MOUNT
423FOO5
.
The
engine,
transfer .
There transfer
torque
are
rubber
transmission,
mounts
at the
engine
end
mount
mount
View 2
11-2
and
together.
end.
1. Transmission 2. Engine
converter,
are each joined
WA350-1
and
STRUCTURE
AND
FUNCTION
RADIATOR
RADIATOR
Section X-X
423FOO6
I.
Radiator
2.
Coolant
3.
Fan guard
4.
Hydraulic
5.
Torque
Specifications level sensor oil cooler
converter
Coolant
inlet port
6.
Coolant
outlet port
1
G6 type
Cross-sectional
area:
52.57
area of water tubes:
m2 138
cm2
oil cooler
A.
WA350-
Core type:
Total heat dissipating
11-3
STRUCTURE AND FUNCTION
FUEL TANK AND The fuel level sensor is installed
FUEL TANK AND PIPING
PIPING in the fuel tank.
__
F4230001
1. Connector 2. Fuel level sensor 3. Injection
pump
4. Drain cock 5. Fuel filler port
11-4
WA350- 1
STRUCTURE
ENGINE
AND
ENGINE
FUNCTION
CONTROL
CONTROL
F4230002
1. Accelerator pedal 2. Injection pump
WA350-1
11-5
ENGINE
12 TESTING
AND ADJUSTING
Standard
value table
Tool list for testing Adjusting
valve
Measuring Testing
and adjusting engine
Testing
*
The
following
precautions
troubleshooting
or during
1. The values
in these
used as target 2. The standard standard
values
repairing
in these
tables
for the machine
values
tables
using
4
timing
..
..
5
12-
6
12-
8
. . 12-
9
.
12-l
0
....
12-l
1
.
fan belt tension
exhaust
Measuring
accelerator
gas color
..
..
pedal operating
.
angle
..
fuel cut solenoid
Value
. . . . 12. . . 12-
.
pressure
Measuring
the Standard
on the values or when
must
shipped
for new
estimating
for judgement
when
be used as reference value
when
3
. .
force
. ..
.. ..
..
Tables
to make
judgements
leaving
the plant,
so they
12-l
2
12-l
4
during
and adjusting.
are based
when
standard
use these
tables
values
values
they should 3. These
are necessary testing
.
pressure
.
blow-by
and operating
2
12-
oil pressure
and adjusting
Adjusting
. 12-
.
fuel injection
and temperature Measuring
. . _. .
.
clearance
compression
Measuring
..
.
and adjusting
when
from
in combination
with
after a period
troubleshooting
the plant,
values
when
should
be
of use. are estimated
and on the results
repair and operating
not be used for standard
alone to make simple
machines
wear
values
of various
records
when
judging
claims.
based
tests.
making
on the
Therefore, judgements.
In addition,
do not
judgements.
WA350-1 %’
TESTING
ADJUSTING
AND
STANDARD
TABLE
VALUE
STANDARD
r
Engine Cate
Unit
Condition
Item
gory
High idling speed Engine speed
TABLE
VALUE
rpm
Low idling speed
rpm
Komatsu Standard value
O-l
S6Dll
Permissible value
2,350
- 2,450
-
2,430
- 2,530:
-
650-750 -
(680-780)
0°C
starting .
Necessary speed
- 20°C
Intake resistance pressure
Exhaust
(using starting
aid)
(When
u”
moBlow-by
Oil pressure oil temperature: (SAE30 min. 8d’C)
Oil consumption
ration
pressure
Fuel injection timing Coolant
mm
6.5 (8.5)
Max. 1 .O
2.0
(Max. 2.5)
(3.5)
0.25
0.25 0.45
13002-43501
mmH,O
Max. 150
300
At high idling
kg/cm2
3.5-5.5
2.5
At low idlino
ko/cm2
Min. 1.5
1 .o
Oil temperature [engine speed1
40
60°C
min. 60°C
At continuous rated horsepowe (oroportion to fuel consumption)
“C
10
80-I
120
I
1 %
Max. 0.5
1 .o
Nozzle tester
kg/cm2
250
200
Before top dead center
degree
16
16+1
70-90
100
OC I
temperature when fully open
“C
74.5 - 78.5
74.5 - 78.5
“C
90
90
Lift when fully open
mm
9.5-10.5
Deflection when pushing with finger force approx. 6 kg
mm
7.5 4-7
force
Operating
angle cy
degree
Operating
travel L
mm
42
kg
cY,33
CYI45
height L,
mm
15-25
Stopper
height Lz
mm
15-25
mm
136-146
X
9.5 - 10.5 5-10 Max. 10.5
Stopper
(
12-2 0
Max. 5.0 (Max. 6.5)
Operating
Rod length
Max. 650
0.45
Temperature
Fan belt tension pulley) (Alternator-Fan
75
Max.
Min. 30 [300 - 3501
Valve cracking function
Max. 650
mm -
Whole speed range (at engine outlet)
temperature
Thermostat
Bosch index
Whole speed range (inside oil pan)
Oil temperature
Fuel injection
Bosch index
50
Max.
kg/cm2 [rpml
At high idling, oil temoerature
pressure
Max. 635
“C
Exhaust valve
pressure
Compression
Max. 300
mmHg
Intake valve
engine is cold)
Min. 100
All speed
At high idling
Valve clearance
Min. 150
Min. 100
mmH,O
At abrupt acceleration Exhaust gas color
Min. 150
rpm
All speed
All speed (intake air temp. 20°C)
Exhaust temperature
vm
-
1: Serial No. 1 1 1 18 and up WA350-1
TESTING
AND
TOOL
I 7~ No.
ADJUSTING
LIST
TOOL
FOR TESTING
Testing and measuring item
1
Engine speed
2
Battery specific gravity
3
Coolant freezing temperature
4
Water temperature, oil temperature, intake temperature
AND
Tool
LIST
FOR
TESTING
Remarks
Tachometer
799-203-8000
Battery coolant tester
795-500-1000
Digital display 60-I 9,999
790-500-I
300
1.100
-
-5
-
-50°C
0 -
200°C
0 -
1,ooo”c
or
temperature gauge
799-l
01-6000
Exhaust temperature
6
Lubricating oil pressure
0 -
10 kg/cm2
7
Fuel pressure
0 -
20 kg/cm2
0 -
1,500 mmHg
0 -
1,000 mmH,O
Intake pressure,
Engine presssure
exhaust pressure
measuring kit
rpm
1.300
5
8
ADJUSTING
ADJUSTING Part No.
Thermistor
AND
799-203-2002
Blow-by pressure
9
10 Intake resistance ~ I_
- 1,000
-
0 mmH,O
11
Compression pressure
Compression gauge
795-502-I
204
0 -
70 kg/cm2
12
Blow-by pressure
Blow-by checker
799-201-I
503
0 -
500 mmH,O
13
Valve clearance
Feeler gauge
795-l
14
Exhaust gas color
Smoke meter
15
Fuel on water mixed in oil
Engine oil checker
799-201-6000
16
Coolant quality
Water quality tester
799-202-7001
PH. nitrous acid ion concentration
17
Leakage from cooling system
Cap tester
799-202-9001
0 -
2 kg/cm2
18
Fuel injection pressure Nozzle injection condition
Nozzle tester
0 -
300 kg/cm2
19
Electrical circuit
Tester
20
Accelerator
Push-pull scale
-
m
When
pedal force
carrying
out testing,
adjusting
25-l 330
Commercially available
Commercially available Commercially available 7AO-262-0020
or troubleshooting,
0.25,0.45
mm
Discoloration 0 to 70% standard color (Discoloration %x l/l O=Bosch index) Water content 0.1%. 0.2% in standard sample
Current, voltage, resistance Commercially available 0 -
stop the machine
on level ground,
25 kg
insert the safety
pins and block the tracks.
A A
When
working
When
checking
while the water
A
in groups,
use agreed signals and do not allow unauthorized
the water
Be careful not to get caught
WA350
1
level in the radiator
is hot. Boiling water
wait for the water
to cool.
persons near the machine. Do not remove
the radiator
cap
may spurt out.
in rotating
parts.
12-3 al
AND
TESTING
ADJUSTING
ADJUSTING *
Condition:
*
Adjust
ADJUSTING
VALVE
VALVE
CLEARANCE
CLEARANCE
Engine is cold.
clearance
between
valve and rocker
lever
as follows. Unit: mm
Intake valve Cold
0.25
tool
Special
0.45
--
Part number
Part name
1 795-125-1330
A
Exhaust valve
I
1. Remove
air
connector,
2. Rotate
1 Feelergauge
cleaner
I 1
assembly
then remove
the
Q’ty
and
intake
cylinder head cover (I ).
crankshaft
in the normal
direction
to
align pointer
(2) with the 1.6 TOP mark on crank-
shaft
When
pulley.
of the valves. 1.6 TOP
rotating,
When
mark,
check the movement
the pointer
No.1
cylinder
is in line with the
should
be at com-
pression top dead center. No. 1 cylinder
3. When
is at compression
center, adjust the valve marked When
No.6
cylinder
is at compression
center, adjust the valves marked
4. To adjust,
insert tool A between
rocker
(4) and turn adjustment
until clearance
is a sliding
nut (6) to hold adjustment Lock nut:
3.2 *
and adjust
After
adjusting
top dead crankshaft clearance
120� of
one turn in the normal
(5) lock
clearance
di-
of the re-
o.
No.1
center,
tighten
(3)
screw in position.
the valve
maining valves marked t
Then
lever screw
0.3 kgm
5. Next, rotate crankshaft rection
fit.
top dead
0.
and valve stem
m
top dead
.
l
cylinder
at compression
it is also possible
to turn the
each time and adjust the valve
each
cylinder
according
to
the
firing order. l
Firing order:
Zr After
tightening
l-5-3-6-2-4 the lock nut, check
the clear-
ance again. r
I
423F301
12-4 a
WA350-1
TESTING
AND
ADJUSTING
MEASURING
MEASURING
COMPRESSION
*
Measurement
l
Coolant
l
Engine valve clearance:
l
Engine speed:
COMPRESSION
PRESSURE
PRESSURE
condition
temperature: 360
Inside operating Standard
to 380
range.
value.
rpm Unit: kg/cm2
Item Compression pressure
Standard value
Permissible value
Min. 28
Min. 19.5
Special tools
1
Al---
795
502-I
If
performance
worn, measure
m
When
IQ’ty
gauge
I ’
Tachometer
tests
that the piston,
Part name
1Compression
204
799-203-8000
B
*
1
Part number
1
or troubleshooting
shows
piston ring or cylinder liner may be the compression
measuring
pressure.
the compression
careful
not to touch
muffler,
or to get caught in rotating
pressure,
be
manifold
or
the exhaust
parts.
1. Adjust valve clearance. t
For details,
see ADJUSTING
VALVE
CLEAR-
ANCE. 2. Warm
up engine (oil temperature
3. Remove
40°C)
nozzle holder assembly.
4. Install
adapter
assembly,
A
in
mount
and connect
5. Set engine tachometer 6. Disconnect
of
nozzle
holder
pressure gauge.
B in position.
fuel
CUT-OFF
solenoid
valve
connector. Crank
engine
compression Zr Measure where
with
starting
motor
and
measure
pressure. the compression
the
pressure
pressure
gauge
at the point
indicator
remains
steady. *
When measure
measuring
within the specified *
the
the engine
compression
speed
to confirm
WA350-1
that it is
range.
Installing the nozzle holder assembly ing the compression
pressure,
after measur-
pressure.
12-5 @
TESTING
AND
TESTING * l
AND
Measurement Coolant
TESTING
ADJUSTING
ADJUSTING
FUEL
AND
ADJUSTING
INJECTION
FUEL INJECTION
TIMING
TIMING
condition
temperature:
Inside operating
range. Unit: degree
Standard value
Item
m-~
B.T.D.C.
TESTING
FUEL
1. Disconnect 2. Remove
Permissible value 16+
INJECTION
fuel injection delivery
(
16
1
TIMING
pipe (1) of No. 1 cylinder.
valve
holder
(2).
then
remove
delivery valve (3) and spring (4). and install delivery valve holder (2) again.
3. Place fuel control lever at FULL position. 4. Operate slowly
priming
stops flowing
5. Check and
pump
in normal direction.
that
and
rotate
Check
crankshaft
point where
fuel
from delivery valve holder (2). 16�
pointer
I.J. line on crankshaft
16) are
aligned
at point
pulley where
(5) fuel
stops flowing. *
BEYOND
injection
timing line: Timing
RETARDED
Sr BEFORE injection timing line: Timing ADVANCED
*
If the test shows incorrect,
that
the fuel injection
timing
is
adjust as follows.
/j&v
423F302
12-6 0
WA350-1
TESTING
AND
TESTING
ADJUSTING
ADJUSTING FUEL INJECTION BY DELIVERY CHECK 1. Turn
crankshaft
back
30
-
AND
ADJUSTING
FUEL INJECTION
TIMING
TIMING
40”
from
top dead
center. 2. Rotate
cankshaft
to align
16”
I.J. line on crank-
shaft pulley and pointer correctly. 3. Loosen flange little
nut
(7) on the
by little
by operating
until no fuel flows 4. Tighten
pump
mounting
stops
hole of mountijng
the bolt, check
flowing
from
holder at the point where
the
delivery
ery valve
(9)
flange
valve
holder
(3) and spring
again that the delivery
the pointer
with the line on the crankshaft 5. Remove
pump
pump.
After-tightening fuel
the priming
out of the delivery valve holder.
nut (7) in oblong
of fuel injection +
injection
bolt, and rotate the flange on the pump side
valve
is aligned
pulley.
(2). assemble
(41, then
install
delivdelivery
valve holder (2) again. w
Delivery
holder:
3.3
-C 0.2 kgm
6. Connect fuel injection pipe (I). m
Sleeve
WA350-1
nut:
2.4 + 0.1 kgm
12-7 0
TESTING
AND
ADJUSTING
MEASURING 1. Measuring
ENGINE
engine
t
Measurement
l
Coolant
MEASURING
OIL
ENGINE
PRESSURE
OIL
AND
PRESSURE
AND
TEMPERATURE
TEMPERATURE
oil pressure.
condition
temperature:
Inside operating
range. Unit: kg/cm*
~~
Special
tool
Part number
A
Part name
799-203-2002
A
When
measuring,
in rotating A
Install
Q’ty
Engine pressure measuring kit
be careful
1
not to get caught
parts.
and
remove
the
plug
and
oil pressure
gauge with the engine stopped. t
Measure
the engine
perature
is at the specified
1) Remove
oil pressure
when the oil tem-
temperature.
plug (I 1.
2) Install oil pressure gauge A (25 kg/cm? *
Install the oil pressure fected
as little
gauge
so that it is af-
as possible
by the
engine
vibration. 3) Start engine and measure 2. Measuring
oil temperature.
*
Measurement
l
Coolant
Oil temperature
0
condition
temperature:
Item
12-8
oil pressure.
Inside operating
Permissible value
Standard value 190-
110°C
range.
I
120°C
WA350-1
TESTING
AND
MEASURING
ADJUSTING
MEASURING
BLOW-BY
BLOW-BY
PRESSURE
PRESSURE
* Measurement condition . Coolant temperature: inside operating range. . Engine valve clearance: Standard valve Unit: mm H,O
Item
Standard value
Blow-by pressure
Max. 150
Permissible value
I
300
Special tool ~
r A
P&t
number
1 799-201-1503
1
Part name
1 Blow-by checker
1 1
2. Precautions when measuring blow-by It Blow-by may vary greatly according to the condition of the engine, so if there is any abnormality in the reading, to
defective
consumption,
defective
early deterioration
WA350-1
check for any problem
blow-by,
such
related
as excessive
exhaut
or contamination
gas
color,
oil or
of the oil.
12-9 0
TESTING
AND
TESTING
ADJUSTING
TESTING
AND
ADJUSTING
FAN
AND
ADJUSTING
FAN
BELT TENSION
BELT TENSION
Testing fan belt tension Check the amount with
a force
between
of
the fan belt deflects approx.
6
when
kg at a point
the fan pulley and the alternator
pushed
Fan pulley
midway
pulley. Unit:
mm
Alternator
pulley
423F303
Measuring procedure 1. Push the V-belt with midway 2. Use
between
a scale
a force
of 6 kg, at a point
the pulley and the alternator.
to measure
the
Adjustment procedure 1. Loosen mounting bolt
(1)
amount
the V-belt
deflects.
assembly,
and
the
stick
or
mounting
of
the
bolt
of adjustment
alternator
plate (2). 2. Insert
a
mounting
the alternator Qf
bar
bolt and the
between cylinder
the block,
alternator then
raise
to the outside.
If the alternator hands, there
is moved
is danger
to the inside with the
of catching
and insuring
the fingers. 3. Adjust
the belt (3) tension
mounting 4. Check
that the belt tension
all mounting
12-10 0
and temporarily
tighten
bolt. is correct
then tighten
bolts fully.
WA350-1
TESTING
AND
ADJUSTING
MEASURING t
Measurement
MEASURING
EXHAUST
GAS
condition
l
Coolant temperature:
l
Valve clearance:
Inside operating
Standard
range.
value. Unit:
Bosch index
~
Special tool Part number A
*
Part name
Commercially available
When
Smoke
measuring
the
1. Insert probe @
in outlet
secure to exhaust
2. Connect
probe
color;
be careful
pipe. of exhaust
pipe (I)
and
pipe with clip.
hose, connector
hose @of
accel-
and air hose to smoke meter A.
erator switch
*
1
meter
exhaust
not to touche the exhaust
Q’ty
The pressure
of the air supply should
be under
15 kg/cm2. 3. Connect
power cord to AC1 OOV socket.
Sr Check that the power
switch is OFF before con-
necting the cord. 4. Loosen
cap nut of suction
pump
and insert filter
paper. 5. Turn power switch
ON
6. Accelerate
suddenly.
depress
engine
accelerator
catch exhaust
At
pedal, operate
the
filter
papers
(10
gas color on
sheets
or more)
inside filter paper holder, and read indicated
WA3561
time,
gas color on filter paper.
7. Lay filter paper used to catch exhaust top of unused
same
relief valve and
value.
COLOR
EXHAUST
GAS COLOR
MEASURING ADJUSTING
AND
TESTING
PEDAL
ACCELERATOR MEASURING ANGLE AND OPERATING *
Measurement
l
Coolant
OPERATING
OPERATING PEDAL ANGLE OPERATING
FORCE
condition range.
Inside operating
temperature:
kg
Unit:
Operating force of accelerator oedal
a
Permissible value
Standard value
Item
4-7
Max. 10.5
_-
tool
Special
ACCELERATOR AND FORCE
423 F304
Part name
Part number
scale
Push-pull
7AO-262;0020
A
OPERATING
FORCE
1. Measuring
procedure
Q’ty 1
I) Put push-pull scale A in contact with the accelerator pedal at point 150 mm from pedal fulcrum “a”. *
of push-pull
center
The
be in
scale A must
mm from the pedal
with a point 150
contact fulcrum.
2) Start the engine, push the pedal in the direction and measure
of operation when
the maximum
value
end
of the
to the
idling
from
pushing
pedal travel (high idling).
2. Testing
and adjusting
I) Stop the engine. the cable
2) Disconnect celerator
of the ac-
at the bottom
and
pedal, and check that the linkage at
ball joint
bottom
the
of
the
move
pedal
smoothly. 3) Connect
the cable
then disconnect tion
pump,
at the bottom
at the connection
and
check
that
the
of the pedal, for the injeccable
moves
smoothly. *
When
carrying
replace operating
parts force
out this inspection, as
again
within the standard
12-12 0
necessary. and
adjust
or
Measure
the
that
it is
check
range.
WA350-1
MEASURING TESTING
AND
OPERATING PEDAL
ADJUSTING
ANGLE
OF
ACCELERATOR FORCE AND
PEDAL OPERATING OPERATING ANGLE
ACCELERATOR
Unit: mm
Operating travel
L
I
w
42
I
423 F305 Installed height of accelerator pedal stopper
Installed length X of rod
136-146
-
I
1. Measuring procedure 1) Stop the engine. 2) Measure
the
operating
angle
gauge
pedal
it is operated
angle
in contact
cyl, cxz, put the
with
from
the
accelerator
low-idling
and high
the
open
idling. 2. Adjusting 1) Remove
procedure the
cover
under
cab,
the
engine hood and fit the safety lock. 2) Loosen
nut (I)
and adjust
rod (2) until it is 160 3) Release
the
f
accelerator
and adjust the height
installed
length
X of
5 mm. pedal,
loosen
L, of the stopper
nut
(5)
bolt (6)
until it is 18 +- 5 mm. 4) Depress
the
accelerator
and adjust the height
pedal,
loosen
nut (3)
Lz of the stopper
bolt (4)
until it is 17 +- 5 mm. 5) Depress
the accelerator pedal, loosen lock nut (7) and adjust the length of cable so that the injection pump governor lever contacts the high idle stopper.
t
After
making
measurements
the above adjustments, again
are within the standard
WA350-1
and
check
take all that
they
value.
12-13
TESTING
AND
ADJUSTING 1. Confirm pump (I
that
stop
FUEL CUT lever
FUEL
CUT
SOLENOID
SOLENOID
(2) of the fuel
injection
1 is at the STOP position.
(Usually,
the return
the STOP
position.)
2. Adjust
ADJUSTING
ADJUSTING
rod so that
spring
holds the stop lever at
the solenoid
has a maximum
stroke. Adjust
rod
between stopper
so clearance
injection
on the engine
the solenoid 4. Tighten
is 0.4
0.1
mm
(2)
and
key and confirm
that
stopper
*
lever
(3). Stroke-“a”
3. Turn
“b”
pump
=
12 mm
starting
stroke “a” is the standard
dimension.
nuts (5) and (6) of rod (4).
423F338
12-14 0
WA350-1
ENGINE 13 DISASSEMBLY
AND ASSEMBLY
.. STARTING
MOTOR
Removal
ASSEMBLY
Removal
.
13-
2
Installation
. . . . . . . . .._........_....__
13-
3
Removal
13-
3
Installation
13-
4
Removal
13-
4
Installation
13-
5
Removal
13-
5
Installation
13-
6
13-
6
13-
8
.
ALTERNATOR
. ..
Installation INJECTION
Removal
PUMP
.
PUMP
Removal
.
.
.
.
.
FUEL
HOLDER
HEAD
.
.
Removal
. . , _, . . .
.
13-24
.
. . . . 13-27
ASSEMBLY ..__..__..._........._........ .
.
13-29
. .
..
. . . 13-29
ASSEMBLY
TANK
..............................
.
.
..
.
13-30
. . 13-37
ASSEMBLY
.
. .
. .
. .
13-44
..
.
13-46
.
13-14
.._........._.
.
. .
13-22
..
.
13-22
.
13-23
ASSEMBLY
.. ...
Removal Installation
.. .
the following
cylinders,
.
ASSEMBLY
.
COMPRESSOR
pumps engine,
2. Operate 3. Continued
WA350-1
.. .
..
.
Installation
,
ASSEMBLY
TURBOCHARGER
NOTE:
.
_....__...__..._...__.....
Installation
4. After
.
.. ,.
ASSEMBLY
.
Removal
1. Start
.
..........................
Installation CYLINDER
.
.
COOLER
ENGINE
ASSEMBLY
ASSEMBLY
.
Removal
Sr Take
.
. . . . . . _.........__..,_....
Installation NOZZLE
..
. . . ..__..._.........._....
Installation WATER
OIL
ASSEMBLY
Removal
ASSEMBLY
2
Installation
FUEL
RADIATOR 13-
..........................
. .
,
method
for
air bleeding
when
you
start
to operate
hydraulic
cylinders
after
reassembling
keep idling. cylinder
to operate After
13-23
and pipings.
hydraulic
finishing
.
above
4 -
cylinder steps,
long storage,
5 cycles, 3 -
but do not exceed
4 cycles
keep normal
until stroke
engine
same procedure
beyond
100
mm of stroke
end.
end.
speed.
is required.
13-I 0
DISASSEMBLY
AND
REMOVAL
A
Disconnect terminal
1. Remove
OF STARTING the
cable
from
the
negative
MOTOR
MOTOR
ASSEMBLY
(-1
of the battery.
catch, then open hood.
2. Disconnect 3. Remove
STARTING
ASSEMBLY
wire (I) and connector
ground connection
ing motor assembly
(2).
(3). then remove
start-
(4).
__
INSTALLATION OF STARTING MOTOR ASSEMBLY 1. Fit O-ring
and install starting
then tighten 2. Connect
together
connector
motor
assembly
with ground connection
(41, (3).
(2) and wire (1).
3. Close hood, then lock with catch. 4. Connect
13-2 0
cable to negative
(-1
terminal
of battery.
WA350-1
DISASSEMBLY
REMOVAL
n
AND
ALTERNATOR
ASSEMBLY
OF ALTERNATOR
ASSEMBLY
Disconnect the cable from the negative (-1 terminal of the battery.
1. Remove catch, then open hood. 2. Disconnect wires (I), (2) and (3). 3. Remove bolt (4) of adjustment plate, then loosen mounting bolt and nut (5). 4. Move alternator assembly towards cylinder block to loosen belt tension, then remove belt (6). 5. Remove mounting bolt and nut, then remove alternator assembly (7).
INSTALLATION ALTERNATOR
OF ASSEMBLY
1. Install alternator assembly (71, then partially tighten mounting bolt and nut (5). 2. Fit belt (6) in pulley groove and install. 3. Partially tighten bolt (4) of adjustment plate. 4. Insert a bar between alternator assembly and cylinder block, raise alternator assembly and adjust tension of belt. * The belt should deflect about IO mm when pushed with a finger pressure of 6 kg at a point midway between the alternator and the fan pulley. 5. Tighten bolt of adjustment plate, mounting bolt and nut (5). 6. Connect wires (31, (2) and (I ). 7. Close hood, then lock with catch. 8. Connect cable to negative (-1 terminal of battery.
WA350-1
13-3 0
DISASSEMBLY
AND
REMOVAL 1. Remove
ASSEMBLY
FUEL
OF FUEL INJECTION
PUMP
INJECTION
PUMP
ASSEMBLY
catch, then open hood.
1and (2).
2. Disconnect
control rods (I
3. Disconnect
boost compensator
4. Disconnect
fuel hoses (4) and (5).
5. Disconnect
fuel supply hose (6).
6. Remove
lubrication
7. Disconnect
hose (3).
tubes (7) and (8).
6 fuel injection tubes (9).
8. Remove
coupling
9. Remove
4 mounting
bolt (10). bolts, then pull out fuel injec-
tion pump assembly
(I 1) to rear to remove.
INSTALLATION OF FUEL INJECTION PUMP ASSEMBLY 1. Place
fuel
bracket, mounting 2. Rotate
injection
and
crankshaft
crankshaft timer
(1 I)
on
Partially
tighten
4
coupling bolt (IO).
and align pointer
(13)
with
line
line is not at the front,
rotate
the
one more turn.
line A on fuel injection side, then
uniformly
assembly
pulley (I 2).
If the timer
3. Align
pump
in position.
bolts, then tighten
on crankshaft t
set
tighten
pump with
mounting
line B on
bolts of pump
in turn.
4. Connect
6 fuel
injection
tubes
(9).
and
tighten
nuts. w
Sleevenut:
5. Fit gaskets
2.4kO.l
and install lubrication
6. Fit gasket and connect 7. Fit gaskets
kgm
and connect
fuel hoses (51 and (4).
8. Connect
boost compensator
9. Connect
control rods (2) and (I ).
IO.
tubes (8) and (7).
fuel supply hose (6). hose (3).
Close hood, then lock with catch.
13-4 0
WA350-1
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