Champion usn-72 ユーザーガイド

Part 5: BASIC SERVICE

Refer to Fig. 6.8, Part 6, Replacement Parts, for a detailed drawing of the rinse saver assembly.

The rinse saver assembly, located at the unload end of the dishwasher, consists of a dishrack

actuated paddle assembly, a magnet, and a magnetic reed switch mounted on the underside of the

hood assembly.  As a dishrack approaches the final rinse area, it contacts the paddle assembly.

The magnet moves away from the magnetic reed switch mounted underneath it.  The reed switch

contacts close deenergizing 4CR relay. 4CR  N.C. contacts close and power is applied to the final

rinse water solenoid valve.

If the final rinse switch were to fail with its contacts closed, the resulting condition would be no

final rinse assuming all other components operate normally.

If the final rinse switch were to fail with its contact open , the resulting condition would be

continuous final rinse.

To replace the final rinse switch: Turn off power at the dishwasher control cabinet.  Remove the

switch cover box.  Note the orientation of the magnetic reed switch before removal.  Remove the

two (2) retaining nuts holding the switch.  Install the replacement and reassemble in reverse order.

Return the machine to normal operation.  Insert a dishrack into the machine to verify proper final

rinse operation.

Refer to Fig. 6.6, Part 6, Replacement Parts, for a detailed drawing of the take-up assembly.

The take-up assembly provides the means to compensate for wear in the conveyor chains.  Ad-

justment is made by turning the two adjusting screws (Item 1) to maintain proper tension.

To adjust the chain tension:  Turn off power at the dishwasher control cabinet. Drain the

machine and remove the curtain assemblies.  (Refer to Fig 6.5, Replacement Parts, Items 1-3).

Check the chain guides before beginning the chain adjustment.  Replace the guides if worn.

(Refer to Fig.6.6).  Check the chain tension and estimate the amount of adjustment required.

Check the alignment of the conveyor shaft; the shaft and chain gears should be even on both

sides.  Loosen the jam nuts (Item 2).  Turn the adjusting screws (Item 1) evenly on both sides.

Check the distance the chain can be lifted off the center portion of the tracks after each adjust-

ment.  When the chain tension is correct, tighten the jam nuts.  Return the dishwasher to normal

operation and check that the chains track evenly on both sides and engage the drive gears

smoothly.  Stop the dishwasher and recheck the chain tension. Return the dishwasher to service.