Section V. OPERATION UNDER UNUSUAL CONDITIONS

(4) When the forks are raised to the desired

2-9.Operation of Equipment

height, release the lever smoothly to the neutral

a. Shifting Operation-Power Shift.

position, and the forks will hold at this point.

(1) With the engine idling, release the parking

Warning: After reaching the desired height, tilt

brake.

the forks back to prevent the load from sliding off.

(2) Place the directional lever in either forward or

reverse position and accelerate the truck. Refer to

(5) The lowering speed is controlled by the weight

figure 2-2 for the shift pattern and the lift and tilt pattern.

of the load and the position of the control lever. Push

the lift lever slightly forward to lower the load slowly. To

lower the load quickly, push the lever forward as far as

possible. Release the lever slowly to the neutral

position as the load reaches the desired level.

Caution: Do not release the lift lever suddenly

while lowering the load, as this will cause severe

shock.

c. Tilting Operation.

(1) To tilt the mast backward, accelerate the

engine slightly and pull back on the tilt lever. To tilt the

mast forward, accelerate the engine slightly and push

the tilt lever forward. Refer to figure 2-2.

(2) The speed of the engine and the size of the

Figure 2-2. Shift lift, and tilt pattern.

orifices in the control valve tilt plunger control the speed

of tilt. When the mast reaches the desired angle of tilt,

(3) To change direction, always come to a

release the lever smoothly to the neutral position. The

complete stop and then place the power shift lever in

mast will hold at this angle.

the desired position.

Warning: Use care when tilting the mast to

b. Lifting and Lowering Operation.

prevent dumping the load.

(1) Pull the lift lever back to lift, or push the lever

d. Inching Control. This operation is done with a

forward to lower. Refer to figure 2-2. When the lever is

pedal operated by the left foot. Refer to figure 2-1 for

released it will automatically return to the neutral

location. Changing the pedal stroke varies the oil

position.

pressure in the clutch pack and applies the service

(2) A slight acceleration of the engine and a

brakes so that an "inching" operation can be performed

gradual movement of the lift lever from the neutral to

without losing full engine power. The lower the pedal is

the lift position will produce a slow lifting action.

depressed, the slower the truck will travel.

(3) Accelerating the engine and pulling the lever

back as far as possible increases the speed of lift.

Section V. OPERATION UNDER UNUSUAL CONDITIONS

at least one hour to mix the electrolyte solution.

2-10.

Operation in Extreme Cold

d. Fuel System. Keep the fuel tank full at all times.

a. General. If the truck is to be operated in extreme

If condensation forms in the fuel tank, the fuel tank must

cold weather temperatures, certain precautions must be

be drained and cleaned. Refer to paragraph 4-21.

taken to assure continued normal operation.

The

following sub-paragraphs detail checks to be made to be

e. Lubrication. Lubricate the truck according to the

certain the truck is capable of operating at these

current lubrication order.

temperatures.

f. Operation. Start the engine (para 2-7) and allow

b. Cooling System. Check the cooling system for

it to reach normal operating temperature before applying

correct antifreeze solution for the lowest temperature

a load.

expected. Refer to table 2-1. Carefully inspect the

cooling system and correct or report any leaks.

(1) If mud and snow collects and freezes on any

of the moving parts while the truck is idle, apply heat to

c. Battery. Keep the battery full charged to prevent

thaw the frozen material before attempting to operate

freezing. If water is added to the battery, run the engine

the truck.

2-4