TM-9-2320-428-10

TRUCK, CARGO, 8X8, M977

TECHNICAL MANUAL; OPERATOR'S MANUAL

JUNE 2009

TM-9-2320-428-10 - Page 510 of 1072

OPERATE GROVE CRANE IN SAND OR MUD

CAUTION

Take necessary precautions to ensure a firm footing for the crane

outriggers by using a field-expedient blocking underneath the outrigger

pads. Refer to FM 4-30.31 for additional information on vehicle recovery

operations.

NOTE

Lubricate outrigger bottom plate, boom wear pads, and exposed rotation

gears often when cranes are operating in dusty environment (refer to

PMCS - Semiannual procedures (WP 0149) for more information).

1.

When operating a grove crane in a blowing sand environment, perform the following:

2.

Check gear teeth of rotation gear bearing and pinion for an accumulation of sand

within the lubricant.

Figure 2.

3.

If level of sand prevents rotation of crane, notify field level maintenance and have

lubricant removed.

4.

If necessary, notify field level maintenance to apply a light coating of wax to gear teeth

for rust prevention.

5.

Refer to PMCS for proper lubrication of gear teeth when returning to normal operating

conditions.

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