Vulcan-Hart SG4C ML-114876, Service Manual

Page: 26 / 44

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VERIFICATION OF SPARK AT IGNITOR
WARNING: DISCONNECT (UNPLUG) ELECTRICAL
POWER SUPPLY AND PLACE A TAG AT THE
DISCONNECT SWITCH INDICATING YOU ARE
WORKING ON THE CIRCUIT.
WARNING: SHUT OFF THE GAS BEFORE
SERVICING THE OVEN.
1. Remove the bottom front cover as outlined
under Covers and Panels in Removal and
Replacement of Parts.
2. Disconnect the high voltage ignition cable
from the spark igniter.
WARNING: DO NOT HOLD THE WIRE WITH YOUR
HANDS FOR THIS TEST. THE MANUAL GAS VALVE
MUST BE CLOSED.
3. Clamp the ignition cable in a manner that will
position the end of the cable 3 /
16
" from the
oven frame (bare metal surface). It is critical
that the cable be held
3 /
16
" away from the
surface of the oven frame or sparking may
not occur even though the sparking circuit is
functioning properly.
WARNING: THE FOLLOWING STEPS REQUIRE
POWER TO BE APPLIED TO THE UNIT DURING
THE TEST. USE EXTREME CAUTION AT ALL
TIMES.
4. Plug the oven in and set the temperature
controller to the maximum setting.
5. Turn the power switch ON.
6. Sparking should occur after a 4-second delay
and continue for 7 seconds. The cycle will
repeat twice after a 15-second purge time.
Arcing from the ignition cable to the oven
frame should be observed.
DOOR SWITCH ADJUSTMENT
WARNING: DISCONNECT (UNPLUG) ELECTRICAL
POWER SUPPLY AND PLACE A TAG AT THE
DISCONNECT SWITCH INDICATING YOU ARE
WORKING ON THE CIRCUIT.
1. Remove the top front cover as outlined under
Covers and panels in Removal and
Replacement of Parts.
2. Door operation:
A. The switch actuator is engaged by the
switch lever when the right door is between
1" and 1
1
/
2
" from being closed.
3. If adjustment is necessary, bend the switch
actuator to obtain the proper setting.
4. Install the top front cover.
5. Apply power to the oven and check for proper
operation.