SERVICE &
PARTS MANUAL
1024, 1036, 1048 CHEESEMELTER
MODELS
1024C
1024W
1024P
1036C
1036W
1036P
1048C
Canadian
1048W
Canadian
1048P
Canadian
ML-103833
ML-103834
ML-103835
ML-103836
ML-103837
ML-103838
ML-103839
ML-126600
ML-103840
ML-126602
ML-103841
ML-126601
Model 1024
VULCAN-HART
COMPANY,
P.O.
BOX
FORM 31087 (June 2000) (Formerly 991007A)
696,
LOUISVILLE,
–1–
KY
40201-0696,
TEL.
(502)
778-2791
www.vulcanhart.com
PARTS REPLACEMENT
WARNING: DISCONNECT ELECTRICAL POWER SUPPLY AND PLACE A TAG AT THE DISCONNECT
SWITCH TO INDICATE YOU ARE WORKING ON THE CIRCUIT BEFORE SERVICING.
HEATER (Fig. 1)
1. Push one end of the heater into one socket as far as it will go.
2. Swing the other end of heater up until it lines up with the opposite socket.
3. Release heater and it will snap into place.
4. Grasp the heater and move it back and forth to ensure that it is centered correctly.
5. Rotate the heater clockwise, then counterclockwise, to ensure that it is seated correctly.
PL-53526-E
Fig. 1
COOLING FANS
1. Remove the access panel on the left side of the cheesemelter.
2. Unscrew the four mounting screws.
3. Disconnect the fan leads and lift out the fan.
4. Install new fan.
•
Make sure that all wires are enclosed by the nylon wire clamps so that none of the wires
can reach the fan blades.
The cooling fan should blow air into the control compartment. An arrow on the fan housing indicates
the direction of air flow.
–2–
COMPONENT REPLACEMENT
1. Remove the access panel on the left side.
2. Remove all screws holding down the cover.
3. Lift cover straight up.
Replacement of the voltage regulator, actuating switch, main terminal block, or the contactor (1048
only) will require removing the component mounting plate.
1. Disconnect the wires from the “on” pilot light and the switches.
2. Tag or mark the wires to ensure correct replacement.
3. Remove the two mounting screws.
•
One is located at the bottom left of the voltage regulator.
•
The other is located under the lower part of the cooling fan. This screw can be reached
through the blades of the fan.
4. Remove the component mounting plate and replace the component. Make sure that the screw
that operates the actuating switch is above the switch lever.
–3–
COMPONENT LOCATION DRAWING
SOCKETS
CONTACTOR
(1048)
VOLTAGE
REGULATOR
PILOT
LIGHT
COMPONENT
MOUNTING PLATE
TERMINAL
BLOCK
NYLON
LOOP
COOLING
FAN
SWITCH
ACTUATING
SWITCH
GROUND STUD
PL-53527
COMPONENT LOCATION (VIEW OF LEFT SIDE WITH COVER REMOVED)
–4–
TROUBLESHOOTING
(See component location drawing on page 4.)
WARNING: DISCONNECT POWER SUPPLY AND PLACE A TAG AT THE DISCONNECT SWITCH
TO INDICATE YOU ARE WORKING ON THE CIRCUIT BEFORE SERVICING.
IF THE UNIT BLOWS A FUSE OR TRIPS A CIRCUIT BREAKER
1. Check the capacity of the circuit.
2. Short circuits may be accompanied by sputtering sounds or sparks.
IF THE HEATERS DO NOT LIGHT
1. If the pilot light does not come on, and the cooling fan does not run, check for a blown fuse or
an open circuit breaker.
2. Check for failure of the main switch.
3. On the 1048, check for contactor failure.
4. Check for a loose wiring connection.
5. If the pilot light is lit, and the cooling fan is running, but the heaters do not light, check for loose
wiring connections. When the cheesemelter is operating in standby with no product on the rack,
the heaters may not glow, but will still emit some heat.
6. If one heater is lit, but the other is not, a burnout or a loose connection is the probable cause. Also,
check that the heater is properly seated in its socket.
IF THE COOLING FAN DOES NOT RUN
1. If the pilot light is not lit, and the heaters do not light, check for a blown fuse or open circuit breaker.
2. If the pilot light is lit and the heaters function, the probable cause is a loose connection.
IF THE HEATERS DO NOT COME UP TO FULL HEAT WHEN THE PRODUCT IS PLACED ON THE
RACK
1. Be sure that the product is on the front half of the rack. The rack is balanced to trip the actuating
switch, but the weight must be on the front half of the rack to ensure that it does so.
2. Check that the rack is at the same level on both sides and is correctly inserted.
3. If the rack operates freely, the failure of the actuating switch is the probable cause.
–5–
ELECTRICAL SCHEMATIC 1024 & 1036
HEATERS
VOLTAGE
REGULATOR
ACTUATING
SWITCH
FAN
PILOT
LIGHT
MAIN
SWITCH
PL-53528
TERMINAL
BLOCK
GROUND
LUG
–6–
ELECTRICAL SCHEMATIC 1048
LEFT SIDE HEATERS
RIGHT SIDE HEATERS
VOLTAGE
REGULATOR
ACTUATING SWITCH
RIGHT
PILOT
LIGHT
LEFT
PILOT
LIGHT
LEFT
SWITCH
RIGHT
SWITCH
FAN
MAIN
PILOT
LIGHT
CONTACTOR
1048
SCHEMATIC
MAIN SWITCH
TERMINAL
BLOCK
GROUND STUD
PL-53529
–7–
ITEM
NO.
DESCRIPTION
PART NUMBER
1024
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
37
38
39
40
Heater (208V.)
Heater (240V.)
Heater Socket
Pilot Light
Main Switch
Left/Right Heat Switch
Contactor
Terminal Block
Voltage Regulator
Cooling Fan
Fan Guard
Nylon Wire Clamp
Actuating Switch
Counter Leg
Wiring Hole Plug
Rack
Outside Cover Mounting Screws
Heat Shield/Deflector
Wire Guard
Ceramic Wire Nuts
Back Stop
Outer Wrap
Access/Control Box Cover
Access Panel Screws
TCP Panel Cover
LH Pivot (2 Position)
RH Pivot (2 Position)
LH Pivot (4 Position)
RH Pivot (4 Position)
Switch - Slide (2 Slots)
Switch - Slide (4 Slots)
Slide Bracket
Nut
Screw
Screw
Washer
Lockwasher
Lockwasher
Legs
FORM 31087 (June 2000)
825536
825538
825098
825100
825100-10
—
—
825126-40
825128-90
825100-80
825100-50
815090-2
825126-30
825172-50
825168-10
825168-20
SC-066-21
825083
851588
FE-009-34
825072
825085
825195
SC-053-38
—
825196
825199
825071
825071-10
825198
825073
825073
NS-011-018
SC-119-065
SC-119-023
WS-002-025
WL-014-007
WL-006-007
804405
–8–
1036
825531
825532
825098
825100
825100-10
—
—
825126-40
825128-90
825100-80
825100-50
815090-2
825126-30
825172-50
825168-10
825172-10
SC-066-21
825083-10
850016
FE-009-34
825072
825085-10
825195
SC-053-38
825191
—
—
825071
825071-10
825198
825073
825073
NS-011-018
SC-119-065
SC119-023
WS-002-025
WL-014-007
WL-006-007
804405
1048
825300 (1050w)
825301 (1050w)
825098
825100
825100-10
825100-10
825126-10
825126-40
825128-90
825100-80
825100-50
815090-2
825150-90
825172-50
825168-10
825168-30
SC-066-20
825083 (2)
850329
FE-009-34
850072
825085-20
825195
SC-053-38
—
—
—
825071
825071-10
825198
825073
825073
NS-011-018
SC-119-065
SC-119-023
WS-002-025
WL-014-007
WL-006-007
804405
PRINTED IN U.S.A.