62. Low Charging Rate When Engine is Running
Probable cause
Possible remedy
a. Loose generator drive belt.
Tighten generator drive belt (par. 92a).
b. Faulty generator operation.
Replace generator brushes (par. 92b).
Replace generator if necessary (par. 92c and d).
Overhaul generator (par. 196). See note in
Adjust or replace regulator (par. 197).
c. Defective current and voltage regulator.
See note in paragraph 48.
63. Panel Light Does Not Light
Probable cause
Possible remedy
a. Defective panel bulb.
Replace bulb (par. 103d).
b. Defective ignition switch.
Replace the switch (par. 103b),
64. Starting Motor Does Not Operate
Probable cause
Possible remedy
a.
Weak batteries.
Change batteries (par. 90c).
b.
Clean and tighten connections.
Loose or corroded connections.
Replace switch (par. 103a).
c.
Defective starting switch.
Replace switch (par. 99). Repair if necessary
d.
Defective magnetic switch.
(par. 199). See note in paragraph 48.
Replace brushes (par. 94).
e. Worn brushes.
Clean commutator (par. 198d). See note in
f. Dirty commutator.
Repair or replace armature (par. 198d).
g. Shorted armature.
See note in paragraph 48.
Replace coils (par. 198d). See note
h. Defective field coils.
Section V. RADIO SUPPRESSION
65. Definition of Suppression
Radio suppression is the effective elimination of electrical disturbances within the equipment which interfere with radio
reception and which disclose the location of the air compressor and associated equipment to suitable detectors.
66. Source of Interference
The spark plugs, ignition wires from distributor to spark plugs, starting motor, generator and poor electrical grounds
between mounted electrical parts and the compressor mounting frame are common sources of electrical interference.
67. Methods Used to Suppress Interference
a. Shielding. Distributor to spark plug wires are shielded. Shielded wire is used between the ammeter and voltage
regulator
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