LO-9-2320-260-12
TRUCK, CHASSIS: 5-TON, 6X6, M809 SERIES
LUBRICATION ORDER
NOVEMBER 1983
LO-9-2320-260-12 - Page 27 of 33
NOTES
1 .
INTERVALS
This LO has been revised to comply with DA programing to extend intervals and conserve
lubricants. When practicable, lubrication services will be made to coincide with the vehicle “S”
Preventive Maintenance Service. For this purpose a 10% tolerance (variation) in specified
lubrication point mileage is permissible. Those vehicles not accumulating 1,030 miles
(1,600 kilometers) in a 6 month period will be lubricated at time of Preventive Maintenance
Service.
2 .
CRANKCASE
CAUTION
• Withdraw dipstick slowly to ensure accurate reading. There are
two marks on the dipstick, ‘H” and “L”. The quantity of oil
required to raise the oil level from “L” mark to “H” mark is
approximately 7 quarts (6.6 liters). Daily, check and adjust oil
level as required prior to engine operation.
• If water or metal particles are detected during crankcase
draining and filter element changing, notify Direct Support
Maintenance Personnel before refilling crankcase.
NOTE
Ž Fill crankcase with 27 quarts (25.5 liters) of engine oil. Crankcase
capacity is 23 quarts (21.8 liters) and oil filter capacity is 4 quarts (3.8
liters). Start engine and visually check for oil leaks at drain plug and oil
filter case. Stop engine and allow approximately one minute for oil to
drain back into oil pan; recheck oil level with dipstick. The dipstick is
equipped with a seal which fits into the opening of the dipstick tube. The
seal is seated within the tube and must be turned counterclockwise to be
released before dipstick is withdrawn. Turn clockwise to seat after oil
level has been checked and dipstick installed.
• Do not hold oil samples. Submit oil samples as soon as they have
been taken.
Sample oil every 60 days or 1,000 miles (1 ,600 kilometers). Army Reserve Units will sample
every 120 days or 1,000 miles (1,600 kilometers). Oil will be changed only when directed by oil
analysis laboratory.
Bring engine up to operating temperature and remove drain plug from oil pan. Inspect for
presence of metal particles and water while draining oil into a drainage container. Allow
sufficient draining time so that all oil has time to drain.
Install drain plug and tighten to
60-70 Ib-ft (81-95 N•m).
NOTE
• Seasonal oil changes will be made due to expected temperatures. See
the Chart on page 2.
• If oil analysis laboratory is not available, use the hard time interval of
6,000 miles, 6 months or 600 engine hours, whichever occurs first.
Replace the oil filter element each time oil is drained.
TA 255968
PAGE 27 OF 31
LO 9-2320-260-12
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