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These rack conveyor machines come equipped with
powerful motors and pumps to ensure ware washing results.
Occasionally, some of the parts on these components may
need replacing to maintain optimum performance. Two com-
ponents in particular are the wash pump gasket and the
mechanical seal.
The instructions provided here are for maintenance
personnel only. Unauthorized persons should not attempt any
of the steps contained in these instructions.
Warning: many of the instructions and steps
within this document require the use of tools. Only autho-
rized personnel should ever perform any maintenance
procedure on the dishmachine!
PREPARATION
1. Power must be secured to the unit at the service
breaker. Tag or lock out the service breaker to prevent acci-
dental or unauthorized energizing of the machine.
2. Ensure that incoming water to the machine is
secured either by use of a shut-off valve or disconnecting the
incoming water line.
3. Ensure that the dishmachine has been completely
drained of water and has been allowed to cool down prior to
beginning this maintenance procedure.
TOOLS REQUIRED
The following tools will be needed to perform this
maintenance evolution:
1. 7/16" socket and ratchet with extension
2. 9/16" socket and ratchet with extension
3. 5/16" Allen wrench
4. 5/16" nutdriver
5. Large flathead screwdriver
TIME REQUIRED
It is estimated that it will take (1) person one and a
half hours to perform this task, not including all of the items
indicated in the section entitled "PREPARATION".
IMPORTANT NOTES
1. Read these instructions thoroughly before attempt-
ing this maintenance procedure. Become familiar with the
parts and what actions need to be taken. This will save time in
the long run!
2. The procedures demonstrated in this manual are
shown being performed on an AJ-44CE rack conveyor dish-
machine. The actual maintenance steps, however, apply to
any wash, prewash or power rinse motor found on a Jackson
rack conveyor dishmachine.
SECTION 5: SERVICE PROCEDURES
REPLACING THE PUMP GASKET & SEAL
AJ-54C Series Technical Manual 7610-002-30-91
Issued: 03-22-2006 Revised: N/A
42
STEPS
1. Note: in this procedure, it is not necessary to always
remove the wiring from the motor. However, the motor should
be treated with the greatest of care when being pulled away
and set on the floor for maintenance, as demonstrated in
these instructions.
2. Remove the (4) nuts holding the mounting plate in position.
Removing the mounting plate nuts with the 9/16" socket
3. Loosen the band clamp on the back end of the motor.
Loosening the band clamp on the back end of the motor.
4. With the band clamp loosened, carefully remove it from the
back end of the motor. Once the clamp is removed, examine
it to determine if it needs to be replaced as well. If it is broken
in any spots or shows signs of metal fatigue, it is best to order
a new one. The purpose of the clamp and the attached sup-
port bracket is to keep the weight of the motor from pulling on
the tub, damaging it. It is absolutely necessary that this com-
ponent be replaced once the maintenance procedure is com-
pleted.
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