TM 5-4310-369-14
Section V. TROUBLESHOOTING
trouble beyond the scope of organizational maintenance
General
shall be reported to direct support maintenance.
This section provides useful information for diagnosing
and correcting unsatisfactory operation or failure of the
Organizational Maintenance Troubleshooting
air compressor and its components. Each malfunction
Perform troubleshooting functions in accordance with
stated is followed by a list of tests and inspections. Any
Table 4-2. Troubleshooting
Malfunction
Teat or Inspection
Corrective Action
ENGINE
Refer to engine maintenance manual TM 5-2805-256-14 for maintenance procedures.
PNEUMATIC SYSTEM
1.
SLOW PUMPING OR INSUFFICIENT PRESSURE.
Step 1. Inspect for clogged compressor air filters.
Clean elements (figure 3-8).
a. Removal.
(1) Stop engine.
(2) Remove air filter rain caps (1) from cylinder heads by removing bolts securing rain caps to
cylinder heads.
(3) Remove air filter elements (2) as indicated.
b. Cleaning.
Drycleaning solvent, P-D-680, used to clean parts is potentially dangerous to personnel and property. Avoid
repeated and prolonged skin contact. Do not use near open flame or excessive heat. Flash point of solvent is
100F (38C).
(1) Clean the air filter with cleaning solvent, item 5, App. D, and dry thoroughly.
(2) Clean filter element by washing with an approved cleaning solvent and blowing out with air.
c. Installation.
(1) Reinstall filter elements in heads (figure 3-8).
(2) Reinstall air filter rain caps to cylinder heads with bolts.
Step 2. Check for leaks in air lines, valves, fittings, etc.
Locate leaks and tighten or replace threaded parts.
a. Build up air pressure in compressor.
b. Using soapy water, check for leaks at all valves, fittings, etc.
c. Tighten threaded parts or, if necessary, replace damaged parts, after releasing pressure.
Step 3. Determine if compressor is too small for equipment being operated. Check the air pressure requirements of the
equipment being serviced. If it is greater than the output of this compressor, obtain a compressor unit of a
large enough capacity to perform the required job.
