24 VDC CIRCUITS DO NOT OPERATE (CONT) - TM-9-2320-366-20-10460

TM 9-2320-366-20-1

e4. 24 VDC CIRCUITS DO NOT OPERATE (CONT)

CAUTION

Read CAUTION

KNOWN INFO

TEST OPTIONS

on following page.

15.

Continuity Test or

Service drive lights OK.

STE/ICE-R Test #91

Circuit breaker CB70 OK.

Is continuity present from

REASON FOR QUESTION

Batteries OK.

relay K2 socket 86 on PDP

100 AMP reverse polarity relay

If continuity is not present,

to connector PX17 socket

OK.

wire 1548 is faulty. If

100 AMP reverse polarity relay

continuity is present wire 1586

to power distribution panel

is faulty.

(PDP) 24 VDC cable OK.

Battery to 100 AMP reverse

polarity relay 24 VDC cable

OK.

200 AMP reverse polarity

relay OK.

200 AMP terminal block OK.

Battery to 200 AMP terminal

block 24 VDC cable

Repair wire 1548 from connector PX17 socket 1

assembly OK.

to relay K2 socket 86 on PDP (para 2-45) or

200 AMP terminal block to

YES

replace WTEC II dashboard cable assembly

reverse polarity relay 24

(para 7-10) or WTEC III dashboard cable

VDC battery cable OK.

assembly (para 7-11).

200 AMP terminal block to

reverse polarity relay 24

VDC load cable OK.

200 AMP terminal block to

power distribution panel

(PDP) 24 VDC cable OK.

Master power switch OK.

POSSIBLE PROBLEMS

Faulty dashboard cable

assembly.

Repair wire 1586 from connector PX17 socket 5

to circuit breaker CB70 socket 4 on PDP (para 2-45)

or replace WTEC II dashboard cable assembly (para 7-10)

or WTEC III dashboard cable assembly (para 7-11).

2-284.12

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