TM 9-2320-260-34
16-34. CRANE SHIPPER, BOOM, BOOM EXTENSION, AND ROLLERS
MAINTENANCE (M819) (Cont'd)
4. Place jack stand near end of extension cylinder (3) and remove chain from extension cylinder (3) and
lift,ing device.
5. Attach chain and spreader bar on extension cylinder (3) and lifting device.
All personnel must stand clear during lifting operations.
A swinging or shifting load may cause injury to personnel.
Ensure Iifting capacity is greater than weight of extension
cylinder. Failure to do so may result in injury to personnel or
damage to equipment.
6. Continue walking extension cylinder (3) out of boom (10), set extension cylinder (3) on wood blocks,
and remove chain and spreader bar from extension cylinder (3) and lifting device
Removal of upper roller maybe performed with crane shipper on-
vehicle if boom is supported.
1. Remove six screws (16) and lockwashers (15) from roller housing (14) and shipper (2). Discard
lockwashers (15).
2. Remove roller housing (14) from shipper (2).
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