COOLANT LEVEL.

13B. FUEL FILTERS. Replace fuel/water separator filter and engine

10. STEERING LINKAGE. Lubricate all components every 500

fuel filter every 250 bows. When filters replaced, disconnect one

hours or 6 months with grease. There are 4 universal joints on the

delivery line from filter and set PRIME switch to ON in cab until fuel

column and two ball joints on the drag link. The miter box and

steering gear are each fitted with a lube point. The front axle has

flows from connection. Set switch to OFF, tighten coupling and

attempt to start engine. Repeat procedure as required. Inspect all

lube points on the upper and lower king pin bearings and on each tie

hoses/joints for leaks. Tighten as required.

rod end. The lower king pins are fitted with pipe pugs. Install grease

nipple to lubricate. Refit pipe plug when lubrication completed. All

14. OIL CAN POINTS. Every 500 hours or 6 months lubricate the

components except king pins should be greased until grease appears

following points, transmission shift linkage, cab heater cables, throttle

at the seals. King pins should be given 5 shots with a grease gun.

pedal pivot, seat adjusters, APU shutdown cable and all

Lubricate each axle bail with a film of grease.

compartment hinges, catches, and door handles, wiper arms and

engine throttle linkage.

11. COOLANT LEVEL.

15. GREASE POINTS. Every 500 hours or 6 months lubricate the

WARNING

following points with a hand grease gun.

Do not remove radiator cap when the system is hot as this

Foot throttle linkage on engine

could result in injury to personnel. Do not add coolant

Pivot points on structural panel valve control levers.

directly to the radiator if the engine is hot.

Radiator fan bearing. d) Front and rear spring pins.

Front and rear brake S-cam brackets and slack adjusters.

Check engine coolant level daily. Constant level should be not more

than 3 inches below top of radiator.

When changing or adding

16. TOTAL TASK-HOURS. The Task-Hr. column in the key gives

coolant always use a glycol/water mixture as prescribed in TB

the time for execution of the specified interval service. When

750-651. Drain, flush, and refill the cooling system in accordance

performing several of the services at the same time, e.g.. intervals

with TB 750451.

50, 100, and 250, the times of all these intervals have been combined

for the total task-hours. (See Card 3 of 5).

1 2A. AUXILIARY POWER UNIT (APU). Check APU crank case oil

level daily. Top up oil as required.

A copy of this lubrication order will remain with the vehicle at all

times; instructions contained herein are mandatory.

CAUTION

By Order of the Secretary of the Army:

In the event the {PU is run continuously, change the oil every 50

hours and check the oil level every 8 hours.

GORDON R. SULLIVAN

General, United States Army

12B. AUXILIARY POWER UNIT (APU). Take an oil sample every

Chief of Staff

week for the AOAP. Change crankcase oil every 50 bows of APU

engine operation or 6 months of as directed by AOAP. Change

Official:

engine air cleaner and remove all dirt and grime from the engine

cooling fins every 250 hours. Before replacing oil in engine, remove

MILTON H HAMILTON

engine oil filter and breather and wash with dry cleaning solvent.

Administrative Assistant to the

Allow to air dry before replacing on engine. Inspect fuel filter weekly.

Secretary of the Army

13A. FUELFILTERS.

DISTRIBUTION

To be distributed in accordance with DA Form 1 2-25E

CAUTION

(qty rqr beck no. 5221).

JP-4 is highly volatile fuel. Extraordinary care must be taken when

servicing components that use this fuel. The truck shall be grounded

to an approved grounding point if it contains JP-4 fuel.

Inspect fuel/water separator each day.

Drain any condensate

collected in the bowl.

Card 6 of 6