OPERATOR'S MAINTENANCE INSTRUCTIONS
Section I. LUBRICATION INSTRUCTIONS
3-1. General Lubrication Information
Refer to LO 5-2805-257-12 for engine lubrication and LO 5-4310-335-12 for compressor lubrication.
. After each day's operation, check the oil level
in the compressor oil sump with the dipstick and
required, add compressor oil until sump is up to full mark.
. Drain and refill the compressor crankcase after 200 hours
of operation under normal conditions.
c. The time intervals are for normal operating usage. Reduce the time intervals under extreme operating
conditions, such as excessively high or low temperatures, prolonged operating periods, operation in sand or
dust or immersion in water.
d. Lubricate the right angle drive at the rear of the cart every 300 hours with grease per MILG-10924C.
Wipe fitting with clean cloth before lubricating. Note and record the hour-meter reading at the time of
lubrication, on the lubrication plate.
3-2. Detailed Lubricating Information.
a. Care of Lubricant. Do not allow lubricant to become contaminated. Make sure that all lubricant
containers are tightly closed when not in use.
b. Cleaning. Before lubricating, clean oil holes and surrounding area with a lint-free cloth prior to
. Lubrication Points and Application. See figure 3-1 for Lubrication Chart. Fill sump with recommended
compressor lubricating oil, using formulation only: Formulation 401D manufactured by Lehigh Chemical
Products Co., Formulation L245X manufactured by Anderson Oil Company, NSN 9150-00-753-4667 or
Section II. PREVENTIVE MAINTENANCE CHECKS AND SERVICES
The operator of the air compressor is to perform regular preventive maintenance services to insure
proper operation and lessen the possibility of mechanical failure of the compressor. The services are to be
performed before, during and after operation and at regularly scheduled intervals. Maintenance -services are
based on normal operating usage and may be reduced or extended depending on operating conditions.
3-4. Preventive Maintenance Checks and Services
Refer to Table 3-1 for the preventive maintenance checks and services.
Section III. TROUBLESHOOTING
a. This section contains troubleshooting information for locating and correcting most of the operating troubles
which may develop in the compressor. Each malfunction for an individual component, unit, or system is
followed by a list of tests or inspections which will help to determine probable causes and corrective action to
be taken. Perform the tests/inspections and corrective actions in the order listed.
b. This manual cannot list all malfunctions that may occur, nor all tests or inspections, and corrective action.
If a malfunction is not listed or is not corrected by tested corrective actions, notify your supervisor.
3-6. Operator Maintenance Troubleshooting
Refer to Table 3-2 for troubleshooting pertaining to operator's maintenance.