TM-9-2350-256-10
RECOVERY VEHICLE, FULL TRACKED: MEDIUM, M88A1
OPERATOR'S MANUAL
OCTOBER 2014
TM-9-2350-256-10 - Page 432 of 796
GENERAL
The hoist winch is used with boom and 25-ton (22.7-metric ton) snatch block to lift loads up to 25 ton
(22.68 metric ton). The controls for hoist winch are in operator area.
The hoist winch can also be used with the 10-ton (9.07-metric ton) snatch block.
The hoist winch can be rigged to deploy the main winch cable to a disabled vehicle.
HOIST WINCH OPERATION
CAUTION
•
Use lockout blocks (WP 0077) for load between 6 and 20 ton (5.44 and
18.14 metric ton) and spade for load between 20 and 25 ton (18.14 and
22.68 metric ton). Failure to comply may result in overcompression of the
suspension, causing damage to equipment.
•
Minimum engine speed for winching operation is 1,000 rpm. Engine speed for
normal operating conditions is 1,800 rpm. Engine speed should be increased to a
maximum of 1,800 rpm for hot weather or continuous operation.
1.
Rig boom for two or four-part line (WP 0076).
a.
Two-part line—10 ton (9.07 metric ton) max load
b.
Four-part line—25 ton (22.68 metric ton) max load
2.
Align boom over center of load with recovery vehicle in level position.
3.
Lower spade (WP 0075) if lifting a load over 20 tons (18.14 metric tons).
NOTE
•
Hoist winch can be controlled by using HOIST WINCH operating lever and HOIST
WINCH shift lever (WP 0004).
•
Inspect rigging before operation.
4.
Move HOIST WINCH shift lever (Figure 1, Item 1) to LOW or HIGH position.
CAUTION
Never use HIGH position to pick up heavy loads. Failure to comply may result in damage
to equipment.
NOTE
If shift lever will not engage in LOW or HIGH position, move HOIST WINCH operation lever
to LOWER position while keeping pressure on shift lever.
5.
Move HOIST WINCH operating lever (Figure 1, Item 2) to LOWER or RAISE position.
TM 9-2350-256-10
0079
0079-2
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