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DISASSEMBLY -832450606
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TM-10-3930-660-24-2 Truck Forklift; 6 000 lb. Variable Reach Rough Terrain Manual
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ASSEMBLY -832450608
TM 10-3930-660-24-2
TANDEM GEAR PUMP MAINTENANCE - CONTINUED
0302 00
DISASSEMBLY - CONTINUED
CAUTION
Gears are closely machined, therefore they must be kept together as sets when removed from a unit. Handle
with care to avoid damage to the journals or teeth. Avoid touching gear journals.
12.
Remove drive gear (27) and driven gear (28).
27
32
38
13.
Pry off gear housing (21). Dowel pins (29) will remain
39
34
4
in either gear housing or end cover (30). Do not
remove dowel pins.
30
28
14.
Remove and discard two seals (31) from gear housing
37
(21).
35
33
15.
Remove thrust plate (32). Remove and discard seal
31
(33), two seals (34) and two seals (35).
36
31
CAUTION
Do not grip on or near any machined sur-
21
faces during disassembly or assembly.
29
Failure to follow this precaution will cause
409-1374
part damage.
16.
Place end cover (30) in a vise with mounting side face down.
17.
Insert fabricated seal removal tool into notch between double lip seal (36) and end cover (30). Tap seal out and discard.
18.
Use a screwdriver to remove two plugs (37).
19.
Remove two screws (38) and plate (39).
20.
Remove four studs (4).
CLEANING
See Cleaning instructions (WP 0316 00).
INSPECTION
1.
Inspect gear housing (6 and 21). Replace gear housings if wear exceeds 0.007 in. (0.177 mm) cutout.
2.
Place a straightedge across the bore. If a 0.007 in. (0.177 mm) feeler gauge can be slipped under the straightedge in cut-
out area, replace gear housing.
3.
If cutouts are 0.007 in. (0.18 mm) or less, gear housing is in good condition and may be used.
4.
Inspect thrust plates (7, 13, 23 and 32) for wear, scoring, pitting or eroding.
5.
Erosion indicates oil contamination. Pitted thrust plates indicates cavitation or oil aeration. Discolored thrust plates indi-
cate overheating, probably insufficient oil.
6.
Replace thrust plates if wear exceeds 0.002 in. (0.05 mm).
See Inspection instructions (WP 0317 00).
7.
0302 00-3

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