REFERENCE INFORMATION
BAD CONNFCTIONS
ARF THF MOST COMMON
PAOPt FM !
Sometimes just disconnecting.
cleaning, and
reconnecting will solve a problem.
BE THOROUGH!
The time you save may be your own.
Refer to the functional flow schematic and check the
following;
1. BATTERY - make sure all connections are clean
and tight, including the shunt and power stud.
2. STARTER - check the high current wire (heavy
gauge wire 6A) at the starter. Don’t just check for
voltage; a loose connection will have voltage but
can’t carry much current.
A
0 11
. .
WARNING
Disconnect
negative battery cable before
disconnecting and reconnecting PCB
harness.
WARNING
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There is battery voltage at the PCB at all times.
Failure to disconnect battery cable will result in
damage to equipment or injury to personnel.
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3. PROTECTlVE CONTROL BOX - Remove BOTH
connectors and look for bent or broken pins, pins
pushed out of their socket, or dirt and corrosion in
the connections.
4. ROTARY SWITCH - Check the wires at the switch.
Don’t just look
Feel the connections to make
sure they’re snug. Many problems can be solved
by seeing with your fingers, not just your eyes.
A cold engine should crank at least 100 rpm.
A warm engine should crank at least 180 mm.
3EEN
-
RED
TM g-2320-387-24 -1
STARTER CIRCUIT
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BAlTERY VOLTAGE
STEIICE-R TEST 67
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1. Start Test 67, Battery Voltage.
2. Displayed reading is in volts. Batteries should
be 23-25.5 volts. Batteries voltage will drop
when glow plugs turn on.
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BAlTERY VOLTAGE
MULTIMETER
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I 1. Set the voltmeter to a DC volts scale of at least I
40 volts.
2. Connect the RED lead to positive and the
BLACK lead to negative.
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3. Be sure to read the correct scale.
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VOLTMETER
2-249
