IV
-19
ROTARY GEAR PUMP
ELECTRONIC FOAM PROPORTIONING SYSTEM
Section
IV
: Operation
Chart 4-2. Power System Troubleshooting
START
CONTROL UNIT
ILLUMINATED?
IS POWER INDICATOR
LED ON BACK OF
CONTROL UNIT ON?
IS POWER INDICATOR
LED ON DISTRIBUTION
BOX ON?
IS POWER ISOLATION
SWITCH ON?
PROCEED TO CHART
4-1 SYSTEM
TROUBLESHOOTING.
REPLACE CONTROL
UNIT
CHECK POWER CABLE
INTEGRITY AND REPLACE
CABLE IF NECESSARY
TURN SWITCH TO OFF FOR 30
SECONDS TO RESET CIRCUIT
BREAKER. TURN SWITCH ON
TURN SWITCH ON
IS POWER INDICATOR LED
ON DISTRIBUTION BOX ON?
ENERGIZE APPARATUS
ELECTRICAL SYSTEM OR
REPAIR POWER FAULT
IS THERE POWER AT THE
POWER CONNECTION
TERMINAL?
DISCONNECT CONTROL CABLES
AND ACCESSORY LEADS FROM
DISTRIBUTION BOX
TURN SWITCH TO OFF FOR 30
SECONDS TO RESET CIRCUIT
BREAKER. TURN SWITCH ON
IS POWER INDICATOR
LED ON DISTRIBUTION
BOX ON?
REPLACE
DISTRIBUTION BOX
RECONNECT CABLES ONE AT A
TIME UNTIL LIGHT GOES OUT.
REPLACE COMPONENT THAT
CAUSED FAILURE
NO
YES
YES
YES
YES
NO
NO
NO
NO
NO
NO
YES
YES
YES