Operation In Hot Weather

1) Protection of vehicle
a) In hot weather conditions, avoid the use of low gear ratios whenever possible.
b) Check and refill water and oil frequently.
c) If the engine floods during starting, pull the throttle control out, and push the choke in, then use the cranking motor. When engine starts, adjust the throttle control.

2) Cooling System
a) Rust formation from much faster in hot conditions, therefore add rust preventative solution to the cooling system, or clean and flush at frequent intervals.

3) Lubrication
a) Lubricate the vehicle for hot weather operation ( ie correct grade engine and transmission oils etc ).

4) Electrical System
a) Check the battery solution frequently in hot weather, and top up as needed to keep the solution 1/2 inch above the battery plates.
b) If starting problems are experienced in hot or damp weather, or where quick temperatures changes are experienced, dry the spark plugs, wires and both inside and out of distributor cap.

Operation In Sand

1) General Operation
a) Reduce tyre pressures in desert terrain if the character of the sand demands this precaution.
b) When operating in sand deep enough to cause the use of low gear, do not exceed the specified speed for the particular gear.

2) Starting To Move The Vehicle
a) When starting to move in sand, gravel or soft terrain, engage the front wheel drive and release the clutch slowly to prevent wheel spin and 'dig-in'.
b) Do not attempt to 'jump' or 'rock' the vehicle out with a quick engagement of the clutch, particularly if a tow or winch is available.

3) Air Cleaner
a) In sandy conditions, clean the air filter more often. The frequency depends of the severity of the conditions.

4) Radiator
a) Check the coolant level frequently, and see that the air passages of the radiator core do not become clogged.

5) Additional Information
For additional information about operating in sand, refer to FM 31-25.

Operation In Water landings

1) Inspection
a) As soon as possible after landing, check the vehicle for water in the various units.

2) Engine
a) Drain the crankcase oil. If water or sludge is found, flush the engine using half SAE 10 engine oil and half kerosene. Before putting in new oil, clean the valve chamber, drain and clean the oil filter. Install a new filter element.

3) Fuel System
a) Inspect the carburettor bowl, fuel strainers, fuel pump, fuel tank and lines. Clean the air cleaner and change the oil.

4) Power Train
a) Inspect the front and rear axle housings, wheel bearings, transmission, and transfer case lubricant for the presence of sludge. Clean with half SAE 10 engine oil and half kerosene, and renew if sludge is found.
b) Grease prop shaft universal joints, spring shackles and steering linkages to force out any water.