BT OE35 - Page 207

Electrical System Troubleshooting Charts
PS S5.4 5460
F-code Section C-code
Version no T-code
001 OE35
205
Service Manual 1996-10-15
© BT Products
interlock switch.
0 volts, repair open wiring from push button to
interlock switch.
Battery volts, push start button, check interlock
switch for proper mechanical operation.
5. Disconnect wire #11 from negative side of
interlock switch. Push start button contactor
closed, check for battery voltage at this
terminal.
0 volts, replace interlock switch.
1.1.3 Emergency disconnect contactor closes with push
start button and remains closed when start button
is released; but truck will not operate - no lift, no
travel.
Condition for testing:
- Battery connected to truck
- Key switch in ON position, start button pressed
and released with emergency disconnect
contactor closed
- Negative lead of volt meter connected to
negative stand off terminal on SCR panel. (for
this test only).
Test for battery voltage at:
1. Positive side of 300 AMP and 400 AMP power
fuses, fuse 1 and fuse 2.
0 volts, repair faulty negative connection
between SCR panel negative stand off
terminal and battery negative.
Possible failure - Emergency disconnect
contactor tips.
2. Negative side of 300 AMP power fuse, fuse 2.
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