25 MARCH 1991
times. Return carriage to ground. Check oil level. Install filler
8. DIFFERENTIALS AND FINAL DRIVES. Park on level surface,
Iower carriage, apply parking brake, stop engine. Position each
wteel, in turn, with final drive drain plug down. Remove plugs,
10. MAST ROLLERS. Lower carriage to bottom. Lubricate lower
drain oil. Remove front and rear differential drain plugs, drain
roller fittings through hole in outer mast.
oil. Clean and install drain plugs. Remove front differential fill
plug. Fill slowly to bottom of opening. Clean and install plug.
11. CARRIAGE ROLLERS AND MAST MOUNTING HINGES.
Rotate each front wheel, in turn, so final drive fill plug is own
With carriage Iowered, Iubricate 2 upper fittings through holes
with center of wheel. Fill to bottom of opening. Clean and
in carriage. Raise carriage 4 feet (135 cm) and block securely
install plug. Remove rear differential oil level plug. Fill slowly
to prevent lowering. Lubricate 2 Iower fittings through holes
to bottom of opening. Clean and install plug. Rotate each
in cariage and Iubricate two fittings in mast mounting hinges.
rear wheel, in turn, so final drive fill plug is even with center of
wheel. Fill to bottom of opening. Clean and install plug.
12. PRIMARY AND SECONDARY FUEL FILTERS. Wash
primary filter and replace secondary filter elements when
FUEL PRESS gauge is in RED range with engine running at
9. HYDRAULIC TANK. Lower carriage and check hydraulic oil
high idlE (2320 rpm).
level every 100 service hours. Level must be above ADD COLD
mark. Change hydraulic oil every 2,000 service hours. Unlock
and raise floor plate. Remove filter cap to relieve tank pressure. 13. REPORTING OF ERRORS. You can improve this publication
by calling attention to errors and by recommending improve-
Remove retaining ring and filler screen. Wash filler screen in
ments and by stating your reasons for the recommendations.
clean solvent. Remove drain plug and clean. Install 1-inch
Your letter or DA Form 2028, Recommended changes to
pipe nipple in drain opening to open internal drain valve.
Publications and Forms, should be mailed directly to
Allow oil to drain. Remove pipe nipple and re-install plug.
Commander, US Army Tank-Automotive Material Readiness
Install new brake system filter (note 3). Remove hydraulic tank
Command. ATTN: DRSTA-MBS, Warren, Ml 48090. A reply
filter cover and replace two filter elements. Fill hydraulic tank.
will be furnished directly to you.
Start engine, raise carriage and tilt mast back and forth several
DISTRIBUTION: To be distributed in accordance with
Copy of this Lubrication Order will remain with the vehicle at all
times; instructions contained herin are mandatory.
DA Form 12-25-E, Block 2792, Operator and Unit
maintenance requirements for LO 10-3930-641-12.
BY ORDER OF THE SECRETARY OF THE ARMY:
CARL E. VUONO
General, United States Army
Chief of Staff
PATRICIA P. HICKERSON
Colonel, United States Army
The Adjutant General
PIN: 047467000 TA 098490
CARD 12 OF 12