TM 9-2320-260-34-2
16-21. BOOM REPAIR (M816) (Contd)
6.
Install chain on hoist winch (5) and attach to lifting device. Take up slack in chain.
NOTE
Tag lines and fittings for installation.
q
q Have drainage container ready to catch oil.
7.
Disconnect two hydraulic lines (1) from hoist winch motor (6).
WARNING
All personnel must stand clear during lifting operations.
q
A swinging or shifting load may cause injury to personnel.
Ensure lifting capacity is greater than weight (400 lb (182 kg))
q
of hoist winch. Failure to do so may result in injury to personnel
or damage to equipment.
NOTE
Assistant will help with step 8.
8.
lockwashers (3).
Lower hoist winch (5) from boom (2). Remove lifting device and chain from hoist winch (5).
9.
10.
Remove four locknuts (13), clamps (12), two lines (14), and eight pads (11) from boom (2). Discard
locknuts (13).
11.
Remove cotter pin (7) from pin (10). Discard cotter pin (7).
12.
Using hammer and drive, remove pin (10) and sheave (9) from boom (2).
13.
Remove grease fitting (8) from sheave (9).
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