TM 9-2320-260-34-2
16-18. BOOM ASSEMBLY REPLACEMENT (M816)
THIS TASK COVERS:
b. Installation
a. Removal
INITIALSETUP
REFERENCES (TM)
APPLICABLE MODELS
M816
LO 9-2320-260-12
TM 9-2320-260-10
TOOLS
TM 9-2320-260-20
General mechanic's tool kit
TM 9-2320-260-34P-2
(Appendix B, Item 1)
EQUIPMENT CONDITION
3/4-in. torque wrench (Appendix B, Item 2)
Hydraulic reservoir drained (LO 9-2320-260-12).
1-5/8-in. socket, 3/4-in. dr.
q
q Hoist winch cable removed (TM 9-2320-260-20).
(Appendix B, Item 102)
Operator guard removed (TM 9-2320-260-20).
1-718-in. socket, 3/4-in. dr.
q Pioneer tool bracket removed (TM 9-2320-260-20).
(Appendix B, Item 135)
q Floodlight housing and mount removed
Torque multiplier
Blocking
(TM 9-2320-260-20).
Two chains
GENERAL SAFETY INSTRUCTIONS
Lifting device
All personnel must stand clear during lifting
Guide lines
q
operations.
MATERIALS/PARTS
q Keep hands clear during removal and installation
Two lockwashers (Appendix D. Item 223)
of boom.
Locknut (Appendix D, Item 202)
q Ensure lifting capacity is greater than weight of
GM grease (Appendix C, Item 14)
boom assembly.
Antiseize tape (Appendix C, Item 50)
Cap and plug set (Appendix C, Item 6)
PERSONNEL REQUIRED
Two
a. Removal
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 of boom assembly.
q
Failure to do so may result in injury to personnel or damage to
equipment.
NOTE
Two assistants will help with this procedure.
1. Install chain on boom (1) and attach to lifting device.
2. Wrap second chain around lower boom roller (4) and inner boom (3) to hold inner boom (3)
in position.
3. Raise boom (1) to remove weight from shipper braces (2).
4. Remove two safety pins (5) and shipper braces (2) from boom (1).
5. Remove two safety pins (6), pins (8), and shipper braces (2) from brackets (7).
16-104
