MWO-9-2330-390-25-1 HMMWV M1022A1 Dolly Set Positioning Tube Reinforcement Download
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MWO 9-2330-390-25-1 D-1 APPENDIX D: HYDRAULIC SYSTEM BLEEDING This Task Covers: Bleeding Initial Setup: Equipment Conditions: • Front and rear dollies lowered and detached Materials/Parts: • Hydraulic fluid (MIL-H-5606) • Rags Tools/Test Equipment: • Suitable lifting device, 5000 lb capacity minimum. WARNING • Top beams of front and rear dollies must be secured with a suitable lifting device throughout entire bleeding procedure if bleeding hydraulic system of a dolly set with side lift kit when ONLY side lift positioning cylinders were replaced. Top and bottom beams must also be kept vertical. Until bleeding is complete, air in the hydraulic system may cause erratic movement when extending and retracting hydraulic cylinders. Failure to support top beams and to keep tops and bottoms beams vertical may cause an accident resulting in serious injury or death to personnel. CAUTION • DO NOT allow dirt or dust to enter hydraulic reservoir. Damage to hydraulic system will result. NOTE • This procedure is used to bleed the hydraulic system of a dolly half without side lift kit OR a dolly set with side lift kit when only side lift positioning cylinders were replaced. BLEEDING 1. Remove safety pin (84) and hitch pin (85) and unlock pivoting tray lockout brace (86) from lower bracket (87).