Komatsu wa480 5 wheel loader service repair manual sn:80001 and up

Page 55

STRUCTURE AND FUNCTION, MAINTENANCE STANDARD

TORQUE CONVERTER

Unit: mm No.

Check item

Criteria

Remedy

Standard size

Tolerance

Repair limit

78

-0.010 -0.040

77.75

Outside diameter of input shaft seal ring sliding portion

35

+0.025 +0.035

35.5

3

Inside diameter of clutch housing seal ring sliding portion

340

+0.089 +0.035

340.1

4

Inside diameter of clutch piston seal ring sliding portion

260

+0.081 +0.035

260.1

5

Inside diameter of PTO gear seal ring sliding portion

120

+0.035 +0.035

120.5

Width

5

-0.01 -0.04

4.5

6

Wear of clutch housing seal ring

Thickness

6

±0.15

5.85

Width

3.95

-0.00 -0.10

3.55

Thickness

4.6

±0.1

4.14

1

Outside diameter of pilot

2

7

Wear of stator shaft seal ring

8

Inside diameter of outer race oneway clutch rolling surface

91.661

±0.008

91.691

9

Outside diameter of outer race one-way clutch rolling surface

72.661

+0.008 -0.005

72.631

10

Inside diameter of bushing sliding portion

72.775

+0.015 +0.035

72.855

11

Thickness of bushing sliding portion

5

0.00 -0.10

4.5

12

Thickness of clutch disc

5

±0.1

4.4

13

Backlash of input shaft and PTO gear

WA470-5

Repair hard chrome plating or replace

Replace

0.17 – 0.45

10-17 (12)


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