pumps of each engine, engine heaters,
Service the oil filters (TM 5-3825-213-10).
and personnel heaters for leaks, loose
Replace defective oil filters and lines (par.
mounting, damaged wiring, and broken
Tighten loose mountings, replace broken
Radiator. Inspect the radiator and hose for
leaks, damaged or clogged core. Inspect
the shutter for secure mounting and
Carburetors and linkage.
carburetor for secure mounting, proper
adjustment, and satisfactory operation.
Clean clogged radiator core and report
defective radiator to field maintenance,
connections or other damage.
3d echelon. Repair or replace defective
Adjust the carburetors (TM 5-3825-213-
10) or replace defective carburetors or
Water pump, fan and shroud. Inspect the
water pump for leaks and loose
Fuel filters. Inspect the fuel filters for
mounting. Inspect the shroud and fan for
loose mounting, broken or damaged
loose mounting, bends, or other damage.
lines, and leaks.
Tighten loose mountings and lines.
Service the filters (TM 5-3825-213-10).
to field maintenance, 3d echelon.
Replace defective fuel filters and lines
each engine for leaks or damage.
misalinement. Inspect the pulleys for
Replace or repair defective air cleaners
insecure mounting and other damage.
Tanks, caps, and gaskets. Inspect the fuel
defective alternator and fan pulley (par.
tanks for loose mountings, and leaks.
Inspect the breather holes for clogging.
Oil pump pressure relief valve. Inspect the oil
Inspect the valves and lines for leaks or
pressure relief valve on each engine for
satisfactory operation, by observing the
Replace defective valves and lines (par.
oil pressure gage after the engines are at
179). Tighten fuel tank loose mounting
normal operating temperature. The oil
and report damaged fuel tank to field
pressure at maximum governed speed of
maintenance, 3rd echelon.
2 600 rpm for each engine is 40 to 60 psi.
Fuel lines. Inspect the fuel lines for leaks
Report oil pressure relief valves which show
and loose connections.
unsatisfactory operation to field mainte-
Replace, repair, or tighten fuel lines and
nance, 3d echelon.
Governor and linkage. Inspect the governor
Spark plugs. Inspect the spark plugs for
on each engine for satisfactory operation.
loose mounting and loose terminal
Inspect the vacuum line for leaks or other
connection. Notice any irregular firing
damage. Inspect the governor for loose
of the engines. The proper spark plug
gap is 0.025 to 0.028 inch.
Adjust, clean, or replace defective spark
Primer. Inspect the engines starting aid
primers and lines for loose mounting and
Batteries. Inspect the batteries for leaks,
broken or damaged lines.
condition, electrolyte level, secure
Replace defective or damaged primers and
mounting, and amount of charge.
Inspect the battery cables and
Fuel pumps and housing. Inspect the fuel
connectors for damage and corrosion.