Vulcan-Hart VMCS-101 Service Manual Download Page 14

SERVICE PROCEDURES AND ADJUSTMENTS

 Certain procedures in this section require electrical test or measurements while

power is applied to the machine. Exercise extreme caution at all times and follow Arc Flash
procedures. If test points are not easily accessible, disconnect power and follow Lockout/Tagout
procedures, attach test equipment and reapply power to test.

GRIDDLE TOP MANUAL LIFT

CHECK

 Always hold handle to maintain

control of the unit until lifting mechanism holds in the
desired raised position or rests in the lowered position.
Do not allow unit to swing upward or downward under
its own power as this may result in injury or equipment
damage.

 Do not force unit if it does not move up and

down in the prescribed manner. The assembly may be
damaged by the application of excessive upward or
downward force.

NOTE: 

 A spring force adjustment is not provided on

this unit. It's designed to apply a consistent downward
force on the food product regardless of thickness. Use
the PLATE GAP ADJUSTER to prevent crushing of
soft foods by the downward force of the unit.

Perform this procedure to manually check the raising
and lowering operation of the griddle top.

1.

Grasp the handle Fig. 40 and raise unit (1, Fig.
41) to its maximum height of approximately 53
angular degrees then stop.

Fig. 40

2.

Release the handle and verify unit remains in
place.

3.

Grasp the handle and lower the unit (2, Fig. 41)
until it contacts griddle cooking surface.

Fig. 41

4.

If the lifting operation was smooth without binding
or catching and remained in place at the raised
position then servicing is not necessary. If the
lifting operation was binding and catching then
inspect the lifting mechanism for damaged, loose
or missing hardware and service to repair as
necessary.

PLATE GAP ADJUSTER

The plate gap adjuster (1, Fig. 42) is used to prevent
soft foods from being crushed by the downward force
of the unit. The 1" setting would be used for the
smallest or no gap with 4" being used to create the
largest gap.

Settings are changed by rotating the gap adjuster to
the left or right until it locks in place at the desired gap
setting.

VMCS HEAVY DUTY ELECTRIC GRIDDLE TOP - SERVICE PROCEDURES AND ADJUSTMENTS

F45571 (0316)

Page 14 of 19

Summary of Contents for VMCS-101

Page 1: ...nd skills required to perform the procedure Procedures for which you do not have the necessary tools instruments and skills should be performed by a trained Vulcan Service Technician The reproduction...

Page 2: ...LIGHTS 7 POWER CORD 8 HIGH LIMIT 8 CONTROL THERMOSTAT 9 HEATING ELEMENTS 11 ARM MECHANISM 12 SERVICE PROCEDURES AND ADJUSTMENTS 14 GRIDDLE TOP MANUAL LIFT CHECK 14 PLATE GAP ADJUSTER 14 THERMOSTAT TES...

Page 3: ...te cooking surface 208V VMCS 202 Optional Grooved steel griddle plate cooking surface 240V 9 16 15mm thick fully welded Rapid Recovery composite griddle plate aluminum core interior with 304 Series st...

Page 4: ...bolts NOTE Junction box is secured to the bottom of rear cover with screws and can remain attached Fig 2 3 Remove rear housing lid 1 Fig 3 and rear cover 2 Fig 3 Fig 3 4 Loosen bump stop bolt 1 Fig 4...

Page 5: ...L BOX COVER B Note locations and disconnect power supply wires from terminal strip Fig 7 C Fully raise clamshell to access the left arm wireway cover on the bottom of arm Remove wireway cover 1 Fig 8...

Page 6: ...g clamshell and rear housing from frame A Remove bolts securing rear housing to griddle frame Fig 11 B Remove clamshell from frame 9 Reverse procedure to install 10 Check for proper operation TOP CONT...

Page 7: ...Reverse procedure to install NOTE Ensure that terminal connections are completely seated and tight 5 Check for proper operation INDICATOR LIGHTS Disconnect the electrical power to the machine and foll...

Page 8: ...ht grommet in top control box through the upper pivot rod through rear housing wire path tube vertical to remove from machine 6 Reverse procedure to install 7 Check for proper operation HIGH LIMIT 1 R...

Page 9: ...the control may occur 6 Check for proper operation CONTROL THERMOSTAT Disconnect the electrical power to the machine and follow lockout tagout procedures 1 REMOVE CLAMSHELL FROM FRAME 2 Remove control...

Page 10: ...d and kink the capillary tube or damage to the control may occur A Position capillary bulb to the side 7 Remove the remaining 7 mounting nuts 3 Fig 28 from platen insulation retainer Fig 28 8 Lift pla...

Page 11: ...ulation retainer 2 Fig 33 Do not bend and kink the capillary tube or damage to the control may occur A Position capillary bulb to the side 6 Remove the remaining 7 mounting nuts 3 Fig 33 from platen i...

Page 12: ...ip Fig 35 B Fully raise clamshell to access the left arm wireway cover on the bottom of arm Remove wireway cover 1 Fig 36 from the bottom of left arm Fig 36 C Lower clamshell D Feed the power supply w...

Page 13: ...ight off the upper pivot rod NOTE The arm handle is a loose fit between the arms and will fall away when either arm is removed 7 Reverse procedure to install 8 Check for proper operation VMCS HEAVY DU...

Page 14: ...to prevent crushing of soft foods by the downward force of the unit Perform this procedure to manually check the raising and lowering operation of the griddle top 1 Grasp the handle Fig 40 and raise...

Page 15: ...voltage A If voltage is incorrect find the source of the problem B If voltage is correct check current draw amps through the heating element lead wires NOTE This method is preferred over a resistance...

Page 16: ...mber COMPONENT FUNCTION Power Switch Power switch turns griddle top ON and OFF Indicator Light Power Left amber light indicates when power switch is turned ON Indicator Light Thermostat Right amber li...

Page 17: ...ower to heating element if temperature goes above 624 F A manual reset device after cool down Heating Element Heat source for griddle top WIRING DIAGRAM Fig 44 VMCS HEAVY DUTY ELECTRIC GRIDDLE TOP ELE...

Page 18: ...stat malfunction 7 Heating element malfunction Unit will not raise or lower 1 Check spring mechanism and look for interference Food under cooked 1 Temperature set too low 2 Food not cooked long enough...

Page 19: ...set too high or too low 2 Cooking surface needs to be cleaned See Operation Field Installation Manual 3 Cooking surface not covered with enough cooking oil 4 Cooking surface warn or damaged VMCS HEAVY...

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