TM9-2330-390-14&P
4-112. HYDRAULIC SYSTEM BLEEDING.
This Task Covers: Bleeding
Initial Setup:
Equipment Conditions:
Materials/Parts:
· Front and rear dollies lowered and detached
· Hydraulic fluid (Item 15, Appendix F)
(M1022A1 without side lift kit) (see paragraph 2-8).
· Rags (Item 25, Appendix F)
· Front and rear dollies lowered and attached
(M1022A1 with side lift kit) (see paragraph 2-8).
Tools/Test Equipment:
· Suitable lifting device, 5000 lb capacity minimum
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 top and bottom beams vertical
may cause an accident resulting In serious Injury or death to personnel.
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.
1.
Remove safety pin (3) and hitch pin (4) and unlock
pivoting tray lockout brace (1) from lower bracket
(2)
4-312
