Champion usn-72 Betriebsanweisung

Part 5: BASIC SERVICE

Insufficient pumped

Clogged pump intake screen .................

Clean pump intake screen

spray pressure

Clogged spray pipe ...............................

Clean spray pipe

Scrap screen full of debris ....................

Must be kept clean and in place

Low water level in tank ........................

Check drain valve(s)

Pump motor rotation incorrect

Refer to Part 3.3, Start-up Procedure,
Steps 21-23, page 24

Defective pump seal..............................

Refer to Repair Procedure 5.3.14

Spray pipe end plug missing .................

Replace missing end plug

Spray pipe O-ring missing ....................

Replace missing O-ring

Wash restrictor needs adjustment .........

Refer to Repair Procedure 5.3.13

Insufficient final rinse

Faulty pressure reducing valve .............

Refer to Repair Procedure 5.3.1

or no final rinse

Improper setting on pressure.................

Correct pressure setting is 20-22 PSI

reducing valve
Clogged rinse nozzle and/or pipe..........

Clean pipe/nozzles

Clogged line strainer .............................

Clean screen or replace line strainer

Defective final rinse switch ..................

Refer to Repair Procedure 5.3.15

Defective final rinse solenoid valve......

Refer to Repair Procedure 5.3.4

Low final rinse

Low incoming water .............................

Increase incoming water temperature

temperature

temperature

110

°

F minimum  for 70

°

rise booster

140

°

F minimum for 40

°

rise booster

Booster steam supply shut off ...............

Turn on steam supply

Booster water supply shut off ...............

Turn on water supply

Rinse nozzle or pipe cap missing

Replace missing part

Defective final rinse thermostat ............

Refer to Repair Procedure 5.3.9

Defective thermometer .........................

Refer to Repair Procedure 5.3.7

Low steam pressure ..............................

Correct steam pressure is 15-30 PSI

Defective steam solenoid valve ............

Refer to Repair Procedure 5.3.4

Defective steam trap .............................

Refer to Repair Procedure 5.3.11

Poor washing results

Detergent dispenser...............................

Check dispenser

not operating properly
Insufficient detergents...........................

Refill containers

Wash water temperature .......................

See condition “Tank(s) water

too low

temperature is low when in use”

Wash arm clogged ................................

Clean

Improperly scraped dishes ....................

Check scraping procedures

Ware improperly placed in rack............

Use proper racks. Do not
overload racks

Drain-Overflow(s) clogged ...................

Check overflow tubes

debris not skimmed from tank(s) ..........
Wash water not drained at specified .....

Drain tanks every two hours

intervals

or after each meal period.

Conveyor not moving

Drive motor V-belt broken ...................

Replace drive belt

dishracks

Conveyor chain needs adjustment ........

Refer to Repair Procedure 5.3.16

Conveyor shaft bearings defective

Refer to Repair Procedure 5.3.17
and Repair Procedure 5.3.18