TM 10-3930-659-34 4-69. FORK/BOOM ASSEMBLY MAINTENANCE (Con’t). 3. Install two shims (10) and pins (9) on fork/boom assembly (3) with two washers (8) and screws (7). 4. Remove wood blocks from two lift cylinders (4). 5. Remove suitable lifting device from fork/boom assembly (3). 6. Disengage boom lock (see TM 10-3930-659-20). FOLLOW-ON TASKS: • Install fork spacing cylinder hoses and lines (see TM 10-3930-659-20). • Install carriage assembly (see TM 10-3930-659-20). • Extend carriage tilt cylinder (see TM 10-3930-659-10). 4-287