TM 9-2320-260-34-2
16-26. CRANE TURNTABLE MAINTENANCE (M816)
THIS TASK COVERS:
a. Removal
d. Assembly
e. Installation
b. Disassembly
c. Cleaning and Inspection
EQUIPMENT CONDITION
APPLICABLE MODELS
Floodlight wiring harness removed
M816
(TM 9-2320-260-20).
TOOLS
Hoist bevel gearcase removed (para. 16-25).
General mechanic's tool kit
Hydraulic pump and support removed
(Appendix B, Item 1)
Crane gearcase removed (para. 16-28).
Lifting device
Crane boom elevating cylinders removed
Eight washers (Appendix C, Item 56)
Four nuts (Appendix C, Item 24)
Crane gondola assembly removed (para. 16-22).
Four screws (Appendix C, Item 33)
Hydraulic oil reservoir removed
(TM 9-2320-260-20).
MATERIALS/PARTS
Boom assembly removed (para. 16-18).
Two lockwashers (Appendix D. Item 213)
Eighteen locknuts (Appendix D, Item 173)
GENERAL SAFETY lNSTRUCTlONS
Eight lockwashers (Appendix D, Item 223)
All personnel must stand clear during lifting
GAA grease (Appendix C, Item 14)
operations.
AntiSeize tape (Appendix C, Item 50)
Ensure lifting capacity is greater than weight of
REFERENCES (TM)
boom support.
TM 9-237
LO 9-2320-260-12
TM 9-2320-260-20
TM 9-2320-260-34P-2
NOTE
Assistant will help with step 1.
1. Attach chains and lifting device to boom support (1). Take up slack in chains.
2. Remove eighteen screws (2) and locknuts (3) from boom support (1) and turntable frame (6). Discard
locknuts (3).
WARNING
All personnel must stand clear during Iifting operations.
A swinging or shifting load may cause injury to personnel.
Ensure lifting capacity is greater than weight (30 lb (14 kg)) of
boom support. Failure to do so may result m injury to personnel
or damage to equipment.
NOTE
Assistant will help with step 3.
3.
Remove boom support (1) from turntable frame (6).
4.
Remove four screws (4) and right-hand guard (5) from turntable frame (6).
5.
Remove four screws (7) an left-hand guard (8) from turntable frame (6).
6.
Rotate turntable frame (6) 90 clockwise and remove two screws (14), lockwashers (13), and stop
block (12) from wrecker body (11). Discard lockwashers (13).
7. Remove socket-head screw (9) from ringgear (10).
8. Rotate turntable frame (6) and remove next socket head screw (9) from ring gear (10). Repeat until
all eighteen socket-head screws (9) are removed.
16-156
