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Part 4:
CLEANING AND MAINTENANCE
4.4 Preventive Maintenance Schedules
Weekly Maintenance Requirements
Perform the following procedures every week.
C AU TI 0 N :
Only qualijied service personnel should p e r f o m preventive maintenance
on the dishwasher
1. Inspect for leaks including all piping, tank seams, and supply connections.
Tighten or repair as required.
2. Inspect the lift-out doors for proper fit and ease of removal.
3. Check the operation of door safety switches.
Refer to Part 3.4, Safety and Operation Checks on page 22.
WARNING:
When working on the dishwashel; disconnect the electric service and place a red tag at
the disconnect switch to indicate work is being done on that circuit.
4.
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6.
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8.
9.
10.
11.
Turn the power selector switch to OFF at the remote control cabinet.
Drain the dishwasher if required and inspect the float switches and probes in the
bottom
of
each tank. Float switches should move freely. Clean if necessary.
Check the conveyor drive chains, spray arms and internal structures for wear or damage.
Reassemble the dishwasher.
Turn the power selector switch to ON at the remote control cabinet.
Check the operation of the start and stop switches on the control cabinet.
Check that the red power indicator works correctly.
Return the dishwasher to normal operation.
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