Door Chain Adjustment (Simulataneous Doors); Computer Control - Vulcan-Hart ML-126743 Service Manual

VC4E & VC6E Series Full Size Electric Convection Ovens - SERVICE PROCEDURES AND ADJUSTMENTS
Fig. 46
4. Install the top front cover.
5. Apply power to the oven and check for proper
operation.
DOOR CHAIN ADJUSTMENT
(SIMULATANEOUS DOORS)
Introduction
When the oven doors are in proper adjustment,
as the doors come together, the right door will
lead the left door in closing by about 1/4 inch. The
doors will feel like they are self closing the last
1/2 inch of travel.
Procedure
1. Remove the lower sill cover as outline under
COVERS AND PANELS in REMOVAL AND
REPLACEMENT OF PARTS.
2. Close doors and check door chain for factory
setting.
A. Turnbuckles should be 5 to 5 1/2 inches
apart.
B. Short eye bolt should be connected to the
end of the chain that goes to the front of the
sprocket.
C. 2 links of the chain should not be engaged
at the rear of the sprocket.
D. Chain must be tight enough that the doors
move simultaneously when opened or
closed.
E. When the doors are opened, the
turnbuckles will move away from each other.
F. The stop cable must be positioned where it
moves freely and does not get pinched.
3. Position door chain assembly to factory setting if
the conditions in step 2 are not met.
4. If right door does not lead the left door in closing:
A. Loosen locknuts on both turnbuckles.
B. Loosen left turnbuckle.
C. Tighten right turnbuckle.
D. Tighten locknuts on both turnbuckles.
5. If the right door leads the left door by more than
3/8 inch:
A. Loosen locknuts on both turnbuckles.
B. Loosen right turnbuckle.
C. Tighten left turnbuckle.
D. Tighten locknuts on both turnbuckles.
6. Check door for proper operation.
NOTE: The locknuts must be tight during testing or
the adjustment will not hold.
A. If doors do not close properly, repeat step 4,
5 and 6.
B. If doors operate properly, continue to step 7.
7. Install the lower front cover.

COMPUTER CONTROL

Operation
Refer to the Instructions Manual F31159 for
specific operating instructions.
Setup Mode
NOTE: Use the setup mode to verify that the control
is configured to the factory settings which result in the
proper operation of the oven. If the CAL1 parameter
is other than zero, determine if it is still needed before
resetting to zero. See COMPUTER CONTROL
TEMPERATURE CALIBRATION.
Page 29 of 64
Fig. 47
F25105 Rev. B (0217)