TM 9-2320-280-20-1
Change 1
2-3
b. Refer to following steps when performing lubrication checks and services:
(1) Intervals. Lubrication services coincide with the vehicle's Semiannual (S) Preventive Maintenance
Service. For this propose, a 10% tolerance (variation) in specified lubrication point mileage is permissible.
Those vehicles not accumulating 1,000 mi (1,609 km) in a 6-month period will be lubricated at the time of (S)
Preventive Maintenance Service.
(2) Army Oil Analysis Program (AOAP). HMMWV engines and transmissions are enrolled in the
Army Oil Analysis Program (AOAP). The sampling interval for the engine is every six months or 3,000 miles,
or 100 hours (if hour meter is installed) of operation. For the transmission, the sampling interval is every
12 months or 6,000 miles, or 300 hours (if hour meter is installed) of operation.
(3) For Operation of Equipment in Protracted Cold Temperatures Below -15°F. (-26°C).
Remove lubricants prescribed in lubrication table for temperatures above -15°F (-26°C). Relubricate with
lubricants specified in lubrication table for temperatures below -15°F (-26°C). If OEA lubricant is required,
see the temperature ranges prescribed in the lubrication table. OEA lubricant is to be used in place of
OE/HDO 10 lubricant for all temperature ranges where OE/HDO 10 is specified in the lubrication table.
c. Perform all (S) inspections in addition to (A) inspections at the time of the annual inspection. Perform
all (A) and (S) inspections in addition to (B) inspections at the time of the biennial inspection.
2-9. REPORTING REPAIRS
All vehicle shortcomings will be reported on DA Form 2404 Equipment Inspection and Maintenance
Worksheet or DA Form 5988-E (automated) (DA Pam 738-750) immediately after the PMCS, and before
taking corrective action. All vehicle deficiencies will be reported in the equipment record.
2-10. GENERAL SERVICE AND INSPECTION PROCEDURES
a. While performing specific PMCS procedures, make sure items are correctly assembled, secure, not
worn, serviceable, not leaking, and adequately lubricated as defined below.
(1) An item is CORRECTLY ASSEMBLED when it is in proper position and all parts are present.
(2) When wires, nuts, washers, hoses, or attaching hardware cannot be moved by hand, or wrench,
they are SECURE.
(3) An item is WORN if there is too much play between joining parts or when marking data, warning,
and caution plates are not readable.
(4) An item is UNSERVICEABLE if it is worn beyond repair and is likely to fail before the next
scheduled inspection.
(5) LEAKS. TM 9-2320-280-10 contains definitions of Class I, II, and III leaks and their effect on
vehicle operation.
(6) If an item meets the specified lubrication requirements, then it is ADEQUATELY LUBRICATED.
b. Where the instruction “tighten” appears in a procedure, you must tighten with a wrench to the given
torque value even when the item appears to be secure.
.WARNING.
Drycleaning solvent is flammable and will not be used near an open
flame. A fire extinguisher will be kept nearby when the solvent is
used. Use only in well-ventilated places. Failure to do this may
result in injury to personnel, and/or damage to equipment.
c. Where the instruction “clean” appears in a procedure, you must use drycleaning solvent (Appendix C,
Item 18) to clean grease or oil from metal parts. After the item is cleaned, rinsed, and dried, apply a light
grade of oil to unprotected surfaces to prevent rusting.
d. Clean rubber and plastic materials with soap and water. Refer to TM 9-2320-280-10 for general
vehicle cleaning instructions.
