Vehicles equipped with scraper type primary fuel filter must be
drained only after turning the scraper handle two complete
revolutions. This filter element will be replaced only at the time it
becomes unserviceable. All other fuel filter elements will be
replaced every 3,000 miles (4,800 kilometers) or 3 months,
whichever comes first, or at the discretion of the maintenance
officer as local conditions warrant.
a. Diesel. Drain each fuel filter daily before starting engine. If primary filter contains large
amounts of water and impurities, the element must be-cleaned (water type)or replaced. If
secondary filter contains water and impurities, the element must be replaced.
b. Multifuel. Drain each fuel filter daily before starting engine. When filters contain large
amounts of water and impurities, filter elements must be changed. Change primary and
secondary fuel filters every 3,000 miles (4,800 kilometers) or 3 months, whichever occurs
first. Change final fuel filter only during engine overhaul/rebuild or during troubleshooting.
WINCHES, CRANES, LIFTGATE, AND DUMP BODY
Service every 3,000 miles (4,800 kilometers) or semiannually, whichever occurs first. If
operation is frequent or continuous, or under severe conditions, service weekly.
LIFTGATE HYDRAULIC OIL TANK
Every 3 months check hydraulic oil level. Place Iiftgate in lowered position at ground level and
remove filler plug. Oil supply is minimum at 2 inches (5.1 centimeters) and maximum at 3 inches
When necessary to add oil, operate liftgate several times up and down, open and close with
filler plug removed. If there is excessive oil in the system the oil tank will overflow. Replace filler
Copy of this lubrication order will remain with the vehicle at all times. Instructions contained herein
are mandatory and supersede all conflicting lubrication instructions dated prior to the date of this
BY ORDER OF THE SECRETARY OF THE ARMY:
John A. Wickham, Jr.
General, United States Army
Chief of Staff
Robert M. Joyce
Major General, United States Army
The Adjutant General
To be distributed in accordance with DA Form 12-38, Block 241, Operatar Technical Manual
requirements for truck, 5-ton, 6x6, M39 series.
*U.S. GOVERNMENT PRINTING OFFICE : 1993 0 - 342-022/80342
PAGE 38 OF 38
PIN : 015709-000