OPERATION IN DUST OR SAND

TM 5-2420-224-10

Rainy or Humid Conditions.

(1)

General.

(a)

Protect vehicle from moisture. Keep operator's compartment as dry as possible.

(b)

If vehicle cannot be parked under cover, protect backhoe operator's station (SEE) and crane

operator's controls (HMMH).

(c)

Whenever possible, park vehicle on raised or elevated area with good drainage.

(2)

Fuel System. Keep fuel tank filled to filler neck to cut down on condensation in fuel tank. Protect

fuel tank filler opening when refilling in rainy conditions.

(3)

Lubrication. Lubricate in accordance with page 2-70.1.

2-9. OPERATION IN DUST OR SAND

WARNING

Do not turn on incline. Always back down ramps or inclines when possible

with backhoe in unstowed center position. Driving forward with load, down

ramp or down incline, will reduce vehicle stability and cause possible injury

to personnel.

General. Dust and sand are abrasive and can cause wear on many parts of the vehicle.

(1)

Cooling System. Check radiator frequently for foreign matter blocking radiator.

(2)

Air Cleaner. Check air cleaner indicator light more frequently. Clean dust discharge valve regularly

and notify unit maintenance if the indicator light comes on.

(3)

Lubrication. Lubricate in accordance with page 2-70.1. Lubricate at more frequent intervals. Take

special care cleaning lubrication fittings and openings. Keep dust and dirt out of lubricants.

(4)

Parking and Non-Use. Make sure operator's compartment doors, windows, and vents are tightly

closed. Protect engine compartment from windblown dust and sand. When vehicle is not in use,

cover external operator's controls and area to protect them from windblown dust or sand.

(5)

Implements. Check hydraulic cylinders, levers, and linkage frequently. Do not allow dust, dirt, or

sand to collect on these surfaces.

2-10. OPERATION IN SALTWATER AREAS

General.

(1)

Corrosion. Keep vehicle as clean as possible. Wash with fresh clean water after use. Inspect

wiring connections closely for signs of corrosion.

(2)

Lubrication. Lubricate frequently in accordance with page 2-70.1.

Change 2