OPERATION 3.7 ELECTRICAL EQUIPMENT IN CAB BASE
211
3.7.2 SWITCH BOARD (X2) IN CAB BASE
Legend for illustration Z25505
Diagnostic Fault Codes of the Engine Centry System
The fault lamps (H97.1 and H97.2) will light for about 2 seconds
after main key switch-on and then go out when no faults are being
detected. When a fault condition exist, the fault lamp will turn
"ON" for warning faults, and "ON FLASHING" for more severe
faults that can affect engine operation and need immediate atten-
tion. To determine an active fault, shut off the engine and turn
main key switch to "ON" position (engine not running). Press
diagnostic switch (S57.1 or S57.2) for 1 to 2 seconds and then
release. If the corresponding fault lamp illuminates while the diag-
nostic switch is held depressed, there is an active fault or faults.
Active faults MUST be corrected as soon as possible.
For more information, refer to the separate Operation and Mainte-
nance Manual CENTRY, filed in volume 2 binder.
(S27)
Emergency By-pass switch for the shutdown func-
tion of the PLC (E6). If an automatic shutdown is ini-
tiated by Shovel systems, with a dangerous situation
for man or machine, which needs the Shovel to be
operable to over-come the dangerous situation,
actuate this switch to override the shutdown function
of the system and to enable a restart of the Diesel
engine.
OTICE
This switch can not override engine initiated
shutdowns.
CAUTION
As soon as the immediate situation of danger is
over, shutdown the unit. Correct the fault that
caused the shut down and re-set the Emergency
By-pass switch (S27).
(S57.1) Diagnostic switch for flashing out fault codes via
lamp (H97.1) of the Centry system for engine 1.
(S57.2) Diagnostic switch for flashing out fault codes via
lamp (H97.2) of the Centry system for engine 2.
(H97.1) Fault lamp for flashing out diagnostic fault codes of
the Centry system for engine 1.
(H97.2) Fault lamp for flashing out diagnostic fault codes of
the Centry system for engine 2.
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