Rack Conveyor Dishmachine
Maintenance Instructions
Heater Replacement
07610-003-12-01 A
October 14, 2005
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9. Remove the gasket.
Removing silicone from thermostat well
Removing the gasket
7. With the thermostat probe out of the way, use the 1/2” socket
and ratchet to remove the nuts holding the heater to the tub.
Remove all nuts and lockwashers.
10. Before proceeding any further, it is important to verify that the
tub wall is free of any excess debris so that when the new gasket
is applied, there are no gaps that could lead to leaking around the
heater.
11. Apply the new heater gasket from your service kit.
12. Slide the heater onto the studs and apply by hand the lock-
washers and nuts. Tighten the nuts by hand and then use the
torque wrench set to 154 in-lbs to ensure that the nuts are secure.
Removing the nuts and lockwashers
8. Remove the heater from the tub weldment.
Applying the torque wrench to the nuts
13. The thermostat probe needs to be placed into the well of the
new heater. Again, use caution when doing this so that the probe
or the capillary tube do not become broken. If this occurs, then the
thermostat will have to be replaced.
Removing the heater
Heater Replacement Instructions
Revision A (10/14/2005)
3
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Putting the thermostat probe in the heater well
Three phase wiring
16. Using the torque wrench or a torque nutdriver (if available)
torge the nuts holding the wires, jumpers and bus bars to 16 in-lbs.
14. Apply silicone to seal the well and hold the thermostat probe in
place.
Tightening the nuts holding the power lines
Applying silicone to the heater well
15. Reattach the incoming power lines to the heater, ensuring that
you wire the heater correctly for either single or three phase oper-
ation.
17. Ensuring that all non-essential personnel are clear of the area,
close the drain valve(s) and restore power and water to the unit.
Turn the unit on and allow it to fill normally.
18. Verify that there are no leaks around the heater. If there are,
attempt to tighten it down as the tub will change shape slightly as
it heats up.
19. Use the amp meter to take readings off of the power lines to the
heater, verifying the amperage draw to the machine data plate.
20. Wait until the heater contactor kicks out (meaning that the tub
has reached the appropriate temperature) and place the unit in
DELIME mode by flipping the switch on the back of the control box.
Allow the unit to operate for at least ten minutes to verify that there
are no leaks and that the heater is maintaining the tank tempera-
ture.
21. If the unit appears to be operating correctly, return it to AUTO
mode and turn off.
Single phase wiring
Heater Replacement Instructions
4
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CONTACT INFORMATION
22. Replace the heater box cover.
23. Replace the front dress panel.
Jackson MSC Inc. provides technical support for all of the
dishmachines detailed in this manual. We strongly recommend that
you refer to this manual before making a call to our technical sup-
port staff. Please have this manual with you when you call so that
our staff can refer you, if necessary, to the proper page. Technical
AFTER MAINTENANCE ACTIONS
Service perosnnel may want to drain the machine and support is available from 8:00 a.m. to 5:00 p.m. (EST), Monday
allow it to cool down. Secure power to the unit at the service break- through Friday. Technical support is not available on holidays.
er and then verify the torque of all fasteners covered in this instruc- Contact technical support toll free at 1-888-800-5672. Please
tion.
remember that technical support is available for service personnel
only.
SPECIAL NOTES
Work performed on Jackson dishmachines by unautho-
rized or unqualified personnel may void the warranty. Before begin-
ning this or any other maintenance evolution on a unit under war-
ranty, you should contact a certified Jackson technician or Jackson
Technical Service. You can find a list of qualified service agencies
in the back of you unit’s installation manual.
SPECIAL PARTS
Heater Replacement Kit Chart
Model Volts
Phase KW
Part Number
All
208
230
200
208
220
230
380
415
440
460
575
600
1
1
3
3
3
3
3
3
3
3
3
3
15
15
15
15
15
15
15
15
15
15
15
15
06401-003-10-21
06401-003-10-22
06401-003-10-21
06401-003-10-21
06401-003-10-22
06401-003-10-22
06401-003-10-28
06401-003-10-28
06401-003-10-29
06401-003-10-31
06401-003-10-33
06401-003-10-33
208
230
200
208
230
460
575
600
1
1
3
3
3
3
3
3
10
10
10
10
10
10
10
10
06401-003-12-94
06401-003-12-95
06401-003-12-94
06401-003-12-94
06401-003-12-95
06401-003-12-96
06401-003-12-97
06401-003-12-97
Heater Replacement Instructions
Revision A (10/14/2005)
5
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