(6) Inspect the overlaid trip assembly for
d. Reassembly. Refer
to figure 27 and reassemble
cracked or broken block, damaged bimetal
the circuit breaker.
thermal bracket, pitted contact points or
Repair or replace a
defective overload trip assembly.
the circuit breaker and bracket.
(7) Inspect the mounting panel for cracks or
breaks. Replace a defective mounting
Section VIII. BATTERY-CHARGING RESISTORS AND RESISTOR BOX
(2) Visually inspect the resistors for breaks,
damage, and loose or broken terminals.
The battery-charging resistors are used to control
Replace a damaged or defective resistor.
the rate of charge during any battery-charging operation.
A 2.38-ohm resistor is used during both high-and low-
of each resistor. Replace any resistor that
rate charging; the 10-ohm resistors, used during low-rate
charging only, are connected in series with the 2.38-ohm
(4) Inspect the resistor box and all mounting
resistor. The resistors are placed in the circuit by means
hardware for damage or defects. Repair
of the battery-charging rate selector switch.
or replace the resistor box and replace all
defective mounting hardware.
Battery-Charging Resistor Box and Resistors
(1) Refer to figure 28 and install the battery-
(1) Refer to figure 5 and tag and disconnect
charging resistors and resistor box.
the battery-charging resistor electrical
(2) Refer to figure 5 and connect the battery-
leads from the ammeter and battery-
charging resistor electrical leads to the
charging rate selector switch.
(2) Refer to figure 28 and remove the battery-
charging resistor box and resistors.
b. Cleaning and Inspection.
(1) Blow accumulated dust and dirt from the
resistors with a stream of clean, dry,
compressed air at low pressure.
Section IX. RECEPTACLE BOXES AND CABLES
Receptacle Boxes and Cables
the shop set body.
convenient source of power at the front and rear of the
(1) Refer to TM 5-4940-200-12 and remove
body for the operation of electrical tools and equipment.
the cover and receptacle.
Power is transmitted through an armored cable
connected at the rear of the 110-volt load terminals on
receptacle box cable leads at the control
the control panel.