LO-9-2320-285-12
TRUCK TRACTOR, YARD TYPE, 43500 LB GVW, DED, 4X2 M878A1
LUBRICATION ORDER
JULY 1985
LO-9-2320-285-12 - Page 3 of 5
LO 9-2320-285-12
LUBRICATION ORDER
NOTES
1.
ENGINE CRANKCASE AND OIL FILTERS.
Check daily for level between ADD and FULL marks on dipstick.
Add oil
(OE) as required.
Drain crankcase and filter pack only when oil is hot.
Refill
to FULL mark on dipstick.
Operate engine for a few minutes, stop engine,
and recheck level.
Add OE if necessary.
Replace engine oil filter and filter
pack at each oil change.
2.
DIFFERENTIAL AND REAR AXLE.
Drive vehicle for 10 minutes to
warm lubricant.
Clean area around fill and drain plugs with solvent (SD-2)
before removing.
Inspect magnetic end of drain plug.
If metal chips are
found, notify direct support maintenance personnel.
Clean and install drain
plug.
Fill with lubricant (GO) to fill plug opening and install fill plug.
Alternately raise axle ends several inches with jack to lubricate hubs.
Drive
vehicle for 10 minutes and recheck level.
Add GO if necessary.
3.
TRANSMISSION FLUID AND FILTERS.
Check daily for level
between ADD and FULL marks on dipstick with engine idling, transmission in
neutral, and fluid warm.
Add Dexron-ll fluid (FTD) as required.
Remove
drain plug only when fluid is hot.
Install drain plug with washer and tighten to
15-20 pounds foot.
Remove pan and inspect drained fluid and inside of pan.
If metal chips or engine coolant are found, notify direct support maintenance
personnel.
Replace transmission governor, sump, and external fluid filters
at each oil change.
Tighten pan and sump filter capscrews to 10-15 pounds
foot.
Refill with 15 quarts Dexron-Ill (FTD), start engine, and shift through all
ranges.
Shift to neutral, check level, and fill to ADD mark.
Drive vehicle to
warm fluid and recheck level.
Add fluid to FULL mark.
4.
CAB TILT RESERVOIR.
Lower cab fully, remove fill plug, and check
level.
Add Dexron-ll fluid (FTD) to 1/4-inch below fill plug opening.
Install
fill plug.
Fluid drain and refill not required.
5.
FRONT AXLE HUBS.
Check daily for lubricant at OIL LEVEL mark in
sight glass.
Pull out rubber plug, add lubricant (GO) to OIL LEVEL mark as
necessary, and push in rubber plug.
FOLD
FOLD
6.
HYDRAULIC RESERVOIR AND FILTERS.
Check weekly for level at
reservoir screen with oil warm and fifth wheel lowered fully.
Add oil (OHA)
as required.
Drain reservoir only when oil is hot.
Inspect magnetic end of
drain plug.
If metal chips are found, notify direct support maintenance
personnel.
Clean drain plug with solvent (SD-2), dry, coat threads with
sealant (MIL-STD-46163), and install.
Replace hydraulic oil filters at each
oil change.
Refill with OHA to level of screen.
Open bleed valve, raise and
lower fifth wheel several times to purge air, and close bleed valve.
Lower
fifth wheel fully and recheck level.
Add OHA if necessary.
7.
POWER STEERING RESERVOIR AND FILTER.
Check daily for level at FULL mark on dipstick with oil warm and engine off.
Add oil (OHA) as required.
To drain, disconnect hose at power steering
gear.
Replace power steering oil filter at each oil change.
Refill through
dipstick opening to FULL mark on dipstick.
Start engine and turn steering
wheel several times.
Stop engine and recheck oil level.
Add OHA if
necessary.
Copy of this lubrication order will remain with the equipment at all times;
instructions contained herein are mandatory.
BY ORDER OF THE SECRETARY OF THE ARMY:
John A. Wickham, Jr.
General, United States Army
Chief of Staff
OFFICIAL:
DONALD J. DELANDRO
Brigadier General, United States Army
The Adjutant General
DISTRIBUTION:
To be distributed in accordance with DA Form 12-25A, Operation,
Organizational, Direct and General Support Maintenance requirements for
Truck Tractor, Yard Type, 4x2, M878(w/5th Wheel).
* U.S. GOVERNMENT PRINTING OFFICE:
1996 0 - 404-609 (21341)
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