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OPERATION IN MUD OR ON SOFT SURFACES
OPERATION IN SNOW AND ON ICE

Operators Manual For Military 621G Scraper Page Navigation
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TM 5-3805-296-10
0006
OPERATION IN SANDY OR DUSTY AREAS CONTINUED
Machine Operation
0006
1. Maintain steady speeds with transmission in lower gears.
2. Keep machine rolling through sand without straining engine or powertrain. If machine gets stuck, refer to
Recovery and Towing in this work package.
3. Monitor engine coolant and torque converter oil gauges on monitor system more frequently during operation.
4. If air filter restriction indicator illuminates on the monitor system, check and clean or replace engine air filter
elements (WP 0016).
5. Check hydraulic cylinders frequently. Do not allow dust, dirt, or sand to collect on the cylinders. The smooth,
polished working surfaces can be damaged from the abrasive nature of these elements.
Parking
0006
1. Park machine (WP 0005).
2. Perform all After PMCS procedures (WP 0012).
3. Clean spouts on fuel containers and areas around filler cap and filler tube before adding fuel.
4. Cover windshield and other cab windows to guard against sandblasting.
5. If machine is to be parked for long periods of time, prepare machine for administrative storage (WP 0001).
END OF TASK
OPERATION IN SALTWATER AREAS
0006
C AU T I O N
To ensure salt residue has been removed, all rock guards and belly pans must be
removed and surrounding areas thoroughly flushed with fresh water. If debris is found,
notify Field Maintenance. Failure to follow this caution may result in damage to equipment.
1. Keep the machine as clean as possible. Wash down with fresh water after use.
2. Inspect wiring connections closely for corrosion.
3. Keep lubrication points clean and well lubricated IAW LO 5-3805-296-13.
END OF TASK
OPERATION AT HIGH ALTITUDES
0006
N OT E
Engine operates at less than peak performance at high altitudes.
1. Coolant level and engine indicators must be watched closely (WP 0004).
2. Add coolant if necessary (WP 0012).
END OF TASK
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