GENERAL MAINTENANCE INSTRUCTIONS
Section I. SPECIAL TOOLS AND EQUIPMENT
maintenance repair parts are listed and illus-
129. Special Tools and Equipment
trated in TM 5-4520-208-25P.
No special tools or equipment are required
by direct support, general support, and depot
131. Specially Designed Tools and
maintenance' personnel for performing nminte-
nance on the heater.
No specially designed tools and equipment
130. Direct Support, General Support and
are required by direct support, general support,
Depot Maintenance Repair Parts
and depot maintenance personnel for perform-
Direct support, general support, and depot
ing maintenance on the heater.
Section II. TROUBLESHOOTING
136. Electric Motor Power Unit Noisy
This section provides information useful in
diagnosing and correcting unsatisfactory opera-
Motor interior dirty ------- Clean the motor.
tion or failure of the heater or any of its
Bearings dirty or worn ---- Clean bearings or repair
components. Each trouble symptom stated is
followed by a list of probable causes of trouble.
The possible remedy recommended it described
opposite the probable causes.
137. Heater Ignition Fails
133. Gasoline Engine Power Unit Troubles
Note. To determine whether failure of the heater to
For a listing of troubles and possible rem-
ignite is caused by a faulty ignition system or fuel
system, it will expedite localizing the fault if the
edies pertaining to the Model 1A08-III Military
following method is used. Remove the clamp, nozzle
Standard Engine, refer to TM 5-2805-208-14.
holder, and combustor plate (para 77). If raw fuel is
present in the combustion chamber, inspect the trouble
134. Electric Motor Power Unit Lacks Power
symptoms pertaining to the ignition system. If no raw
Rearings defective --------- Repair electric motor
Magneto points defective -- Replace magneto point
135. Electric Motor Power Unit Overheats
Magneto defective ------- Repair magneto (para
Rotor and/or windings
Repair electric motor
Fuel pump defective
Bearings defective --------- Repair electric motor