TM 9-2320-260-34-2
15-17. HOIST PUMP MAINTENANCE (Contd)
c. Cleaning and Inspection
1. For general cleaning instructions, refer to para. 2-8.
2. Inspect front cover (14), rear cover (1), and pump body (6) for cracks and breaks. Replace front
cover (14), rear cover (1), or pump body (6) if cracked or broken.
3. Inspect front wear plate (11) and rear wear plate (4) for scores, scratches, nicks, and cracks. Replace
front wear plate (11) or rear wear plate (4) if scored, scratched, nicked, or cracked.
4. Inspect two gears (8) for nicks, burrs, or broken teeth. Replace gears (8) if nicked, burred, or teeth
are broken.
d. Assembly
NOTE
Notches on front cover, rear cover, and pump body must face left
side of vehicle.
1. Using arbor press, install two new dowel pins (5) and (7) on pump body (6).
2. Install plug (2) in rear cover (1).
3. Using arbor press, install two bearings (3) in rear cover (1).
4. Install rear wear plate (4) and pump body (6) on rear cover (1).
5. Install new woodruff key (9) on shaft (10).
6. Using arbor press, install gears (8) on shafts (10) and (18).
CAUTION
Care must be used when installing gears and shafts to prevent
damage to gear teeth.
7. Install shafts (10) and (18) with gears (8) in pump body (6) and rear cover (1).
8. Install new oil seal (13) in front cover (14).
9. Using arbor press, install two bearings (12) in front cover (14).
10. Install front wear plate (11) and front cover (14) on pump body (6) and rear cover (1) with eight
washers (17) and screws (16).
11. Install new woodruff key (15) on shaft (10).
e. Installation
Install new gasket (22) and pump (23) on control valve adapter (21) with six new Iockwashers (20)
and screws (19).
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