TM-9-2350-256-34
RECOVERY VEHICLE, FULL TRACKED: MEDIUM, M88A1
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL
JULY 2005
TM-9-2350-256-34 - Page 277 of 584
TM 9-2350-256-34
0053 00
INTERMEDIATE MAINTENANCE
RECOVERY VEHICLE, FULL TRACKED: MEDIUM, M88A1
NSN 2350-00-122-6826, EIC AQA
HOIST
WINCH ASSEMBLY
MAINTENANCE
DESCRIPTION, REMOVAL, DISASSEMBLY, ASSEMBLY, INSTALLATION, ADJUSTMENT, TESTING
INITIAL SETUP:
Test Equipment
Gage (item 9, WP 0086 00)
Tools and Special Tools
Lifting eyes (2) (item 22, WP 0086 00)
Sling (item 30, WP 0086 00)
Tool kit, general mechanic’s (item 34, WP 0086 00)
Materials/Parts
Bolts (2) (item 59, WP 0087 00)
Bolt (item 75, WP 0087 00)
Gasket (item 7, WP 0087 00)
Lockwashers (10) (item 161, WP 0087 00)
Lockwashers (16) (item 162, WP 0087 00)
Lockwashers (17) (item 163, WP 0087 00)
Lockwashers (12) (item 166, WP 0087 00)
Lockwashers (2) (item 167, WP 0087 00)
Nuts (2) (item 202, WP 0087 00)
Nut, self-locking (item 110, WP 0087 00)
Packings (2) (item 132, WP 0087 00)
Packings (4) (item 133, WP 0087 00)
Packings (2) (item 134, WP 0087 00)
Pin, cotter (item 115, WP 0087 00)
Pin, straight (item 192, WP 0087 00)
Screws (2) (item 57, WP 0087 00)
Screws (6) (item 58, WP 0087 00)
Screws (7) (item 70, WP 0087 00)
Materials/Parts (cont.)
Screws (4) (item 71, WP 0087 00)
Screws (4) (item 74, WP 0087 00)
Screws (3) (item 76, WP 0087 00)
Screws (12) (item 80, WP 0087 00)
Screws (4) (item 96, WP 0087 00)
Screws (16) (item 103, WP 0087 00)
Screws (2) (item 205, WP 0087 00)
Screws (2) (item 219, WP 0087 00)
Screws (2) (item 222, WP 0087 00)
Personnel Required
Mechanics (3)
References
WP 0058 00
WP 0062 00
Equipment Condition
Hoist winch cable removed (TM 9-2350-256-20)
Cupola and cupola plate removed (TM 9-2350-256-20)
Commander’s seat removed (TM 9-2350-256-20)
Hoist winch cable chute removed (TM 9-2350-256-20)
Cupola and cupola plate assembly, oddment trays, boxes,
racks, or baskets removed, as required for clearance and
to prevent damage (TM 9-2350-256-20)
Subfloorplates 3, 4, 11, 17, 18, 19, 20, 21, and 23 removed
(TM 9-2350-256-20)
DESCRIPTION
The hoist winch assembly has a vertical lifting capacity of 30,000 lb (13,608 kg) full drum, and 50,000 lb (22,680 kg) bare drum,
using a four-part line (3 to 5 wraps minimum of cable on a bare drum). The hoist winch assembly consists of a hydraulic motor,
combination control valve, counterbalance valve, winch cable, brake cylinder, and the hoist winch. The hoist winch assembly is
installed in the hull of the vehicle beneath the crew compartment.
NOTE
LOAD TEST REQUIREMENT—Load testing of hoist winch is mandatory, prior to use,
under any of the following requirements: (1) When new. (2) Following any repairs, dis-
assembly and assembly, adjustments, or parts replacement, of hoist winch. (3) When
modifications are made that could affect the strength or lifting capabilities of the vehicle.
Load testing will be accomplished by support maintenance activities.
Refer to the TESTING section below for the detailed step-by-step procedure.
0053 00-1
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