Section 3
Routine Maintenance
Section 3
6-1
6-1
Boom and Slew Locks There are two boom lock positions and three slew lock positions which allow the backhoe to be safely stowed for road or site travel. It is recommended that when preparing the machine for travel the boom lock is fitted first.
4
The three slew lock positions are right, left and centre. i Determine which lock position is required. ii Move the kingpost either fully right, fully left or central, ensuring that the hole in the kingpost is aligned with the hole in the carriage when viewed from the cab. iii Stop the engine and exit the cab. iv Remove the locking pin J from the stowed position K and fit it into the appropriate aligned locking holes L, M or N.
Fit the Boom Lock The two boom lock positions are fully raised and part raised. The part raised position allows the backhoe to be stowed within the profile of the machine.
! WARNING You or others can be killed or seriously injured if you operate the control levers from outside the cab. Operate the control levers only when you are correctly seated inside the cab.
5
Remove the locking pin J and fit it in the stowed position K.
Fully Raised Position
B
i Fully raise the boom and stop the engine. ii Exit the cab. iii Remove the locking pin A from the stowed position B and lower the boom lock C to align the boom locking hole D with the kingpost locking hole E. iv Fit the locking pin A and insert the locking clip F. 2
Remove the Slew Lock i
INT-2-1-3
1
Fit the Slew Lock
A F
H
E
C
Part Raised Position
Note : This job is easier done by two people - one to operate the controls and one to line up and insert the locking pin.
! WARNING
D
If two people are doing this job, make sure that the person working the controls is a competent operator. If the wrong control lever is moved or the controls are moved violently, the other person could be killed or injured.
175780
2-2-6-5
i
Raise or lower the boom to the part raised position. Stop the engine. ii Exit the cab unless a second person is assisting. iii Remove the locking pin A from the stowed position B and lower the boom lock C to align the boom locking hole H with the kingpost locking hole E. The boom may have to be repositioned to align the locking pin holes. Make sure the second person is well clear of the backhoe before operating the controls. iv Fit the locking pin A and insert the locking clip F. 3
K
Remove the Boom Lock (both positions) i
Start the engine and take the weight of the boom by raising the boom slightly. Stop the engine. ii Exit the cab. iii Withdraw the locking clip F and remove the locking pin A. iv Swing the boom lock C up to the stowed position, fit the locking pin A and secure with the locking clip F. 9803/7110
N
J
M L
175790
Issue 1