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TM 10-3930-659-34
4-65.
FORK/BRAKE HYDRAULIC PUMP REPAIR (Cont).
15.
Remove swash plate (34), spring retainer (35), and spring (36) from fork/brake hydraulic pump housing (14).
16.
Remove plug (37) from fork/brake hydraulic pump housing (14).
b. CLEANING AND INSPECTIONI
WARNING
Dry cleaning solvent, P-D-680, is toxic and flammable. Always wear protective goggles and gloves, and
use only in a well-ventilated area. Avoid contact with skin, eyes, and clothes, and DO NOT breathe
vapors. DO NOT use near open flame or excessive heat. The solvent's flash point is 100°F-138°F (38°C-
590C). If you become dizzy while using cleaning solvent, immediately get fresh air and medical help. If
solvent contacts eyes, immediately wash your eyes and get medical aid.
1. Clean metal parts with dry cleaning solvent and dry with clean rags.
2. Inspect parts for cracks, wear, and damage. Replace damaged parts.
3. Inspect pistons, cylinder block, and plate for excessive scoring. Replace damaged pistons, cylinder block, or
plate.
4. Clean and inspect bearings in accordance with TM 9-214.
c. ASSEMBLY
1. Apply a coat of hydraulic fluid to surfaces of all internal metal parts, seals, and preformed packings.
2. Install plug (37) on fork/brake hydraulic pump housing (14).
3. Position spring (36), spring retainer (35), and swash plate (34) on fork/brake hydraulic pump housing (14).
4. Install two bearings (41), new preformed packings (42), and trunnions (43) on fork/brake hydraulic pump housing
(14) with six screws (44). Torque screws to 97 lb.-in. (11 N.m).
5. Install bearing (46) and retaining ring (45) on drive shaft (47).
6. Install drive shaft (47), new seal (38), seal retainer (39), and retaining ring (40) in fork/brake hydraulic pump
housing (14).
7. Install nine pistons (31) and three pins (28) in cylinder block (27).
8. Install plate (33), retainer (32), guide (30), washer (29), and cylinder block (27) in fork/brake hydraulic pump
housing (14).
9. Using arbor press, install spring (26), two washers (25), and retaining ring (24) in cylinder block (27).
10. Install valve plate (23) on fork/brake hydraulic pump housing (14).
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