Komatsu D32E-1 Operation & Maintenance Manual page 159

Bulldozer
Hide thumbs Also See for D32E-1:
Table of Contents

Advertisement

24. SERVICE PROCEDURE
24.11.2.4
CIRCUIT BREAKERS
The lighting and horn circuits are protected by an automatic reset circuit breaker
(1). A 20 amp circuit breaker is mounted on the underside of the instrument
panel. In the event of a short circuit or ground, the circuit breaker will open and
close until the trouble clears or is corrected. The circuit breaker will then return
to and stay in its normal closed position. It is important to use the same capacity
circuit breaker for replacement.
To install a new circuit breaker, remove the
instrument panel and pull from housing. Retain nuts and remove the two screws
(panel face) securing the circuit breaker. Disconnect the wiring and replace with
a new circuit breaker.
The starting and ether circuits are protected
by an automatic
reset circuit
breaker (2). A 20 amp circuit breaker is mounted on the underside
of the
instrument panel. In the event of a short circuit or ground, the circuit breaker will
open and close until the trouble clears or is corrected. The circuit breaker will
then return to and stay in its normal closed position. It is important to use the
same capacity circuit breaker for replacement. To install a new circuit breaker,
remove the instrument panel and pull from housing. Retain nuts and remove the
two screws (panel face) securing the circuit breaker. Disconnect the wiring and
replace with a new circuit breaker.
The back up alarm, fuel gauge, gear range indicator, gauge cluster lamps, and
engine shut down solenoid circuits are protected by an automatic reset circuit
breaker
(3). A 6 amp circuit breaker is mounted
on the underside
of the
instrument panel. In the event of a short circuit or ground, the circuit breaker will
open and close until the trouble clears or is corrected. The circuit breaker will
then return to and stay in its normal closed position. It is important to use the
same capacity circuit breaker for replacement. To install a new circuit breaker,
remove the instrument panel and pull from housing. Retain nuts and remove the
two screws (panel face) securing the circuit breaker. Disconnect the wiring and
replace with a new circuit breaker.
REMARK
Under the inside mounting screw nut on the 6 amp circuit breaker there are
a pair of two ground wire connectors.
24.11.2.5
BATTERY
24.11.2.5.1
General
A
WARNING
A battery gives off highly flammable gas.
Never
allow sparks, open flame or
lighted smoking material near the battery. Avoid spilling any electrolyte on
hands or clothing. Always wear safety glasses when working on a battery.
When using a booster battery and jumper cables, connect the negative
(ground)
cable to the machine's
frame, away from the battery. Always
connect the ground cable last and disconnect it first to avoid sparks near
the battery. A spark could cause a battery explosion and injury.
Never check the battery charge by placing a metal object across the
terminals. The sparks could cause a battery explosion. Use a voltmeter or
hydrometer to measure charge.
Be sure the electrical
system master switch is off when connecting
or
disconnecting the battery to minimize the chance of sparks and explosion.
1
The machine is equipped with one 12 volt battery. It is located in the battery box.
Never allow a battery to stand on concrete, ground or a metal support unless
proper insulation is provided. A wooden platform or board is sufficient insulation.
Be sure the battery is fastened securely to avoid damage from vibration.
3-58

Advertisement

Table of Contents
loading

Table of Contents