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300X Series Technical Manual 7610-002-64-22
Issued: 07-26-2006 Revised: N/A
SECTION 5: SERVICE PROCEDURES
RINSE SOLENOID VALVE REPAIR PARTS KIT
22
These dishmachines are equipped with electrical
solenoid valves to allow for automatic fill and rinse. These
valves are designed to specific tolerances and design aspects
that must be met in order to function properly.
Jackson offers repair kits for replacing some of the
wear items associated with solenoid valves which will allow
you to save money in that replacement of these parts can take
place without removing the solenoid valve from the plumbing
assembly.
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.
TOOLS REQUIRED
The following tools will be needed to perform this
maintenance evolution:
1. Small flathead screwdriver
2. Medium flathead screwdriver
2. Needle nose pliers
3. 5/16” nutdriver
4. Channel locks
5. 12” pipe wrench
TIME REQUIRED
It is estimated that it will take (1) person twenty min-
utes to perform this task, not including all of the items indicat-
ed in the section entitled “PREPARATION”.
IMPORTANT NOTES
1. Read these instructions thoroughly before attempt-
ing this maintenance evolution. 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-44C rack conveyor dishma-
chine. The actual maintenance steps, however, apply to any
Parker style solenoid valve found on a Jackson dishmachine.
STEPS
1. Remove the top screw with the 5/16” nutdriver. Remove the
screw and the data plate and set to the side.
2. With the top screw and data plate removed, grasp the sole-
noid coil and gently pull up. The coil should slide up, allowing
you to remove it from the valve bonnet. If you are wanting to
replace the coil, continue on with Step 3. If you are wanting to
replace some of the internal components of the valve, proceed
to step 12.
3. NOTE: Replacing the solenoid coil requires working with
the wiring of your machine. It is important that all wiring main-
tenance be performed by qualified personnel. Always verify
the wiring steps presented in this instruction with the schemat-
ic that shipped with the unit. A current schematic can also be
found in the unit’s installation manual. Before beginning any
step that involves working with wiring, ensure that the steps
located in the section entitled “Preparation” have been per-
formed. Power must be secured to the machine at the service
breaker. Failure to do so could result in severe injury to main-
tenance personnel.
Removing the top screw
Removing the coil