TM 10-3930-659-20 17-12.    FORKS REPLACEMENT (Con't). 7. Install fork spacing cylinder (4) on right fork (3) with pin (6) and two new springpins (5). 8. Install lubrication fitting (7) on right fork (3). 9. Install lubrication fitting (8) on left fork (2). 10. Remove wooden blocks from under carriage assembly (1). FOLLOW-ON TASKS: • Lower carriage assembly (see TM 10-3930-659-10). • Install fork spacing chains (see paragraph 17-34). TA707643 17-44