Jackson jp-24b, JP-24BF, JP-24F technical manual Preventative Maintenance

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SECTION 3: PREVENTATIVE MAINTENANCE

SECTION 3: PREVENTATIVE MAINTENANCE

PREVENTATIVE MAINTENANCE

The dishmachines covered in this manual are designed to operate with a minimum of interaction with the operator. However, this does not mean that some items will not wear out in time. Jackson highly recommends that any maintenance and repairs not specifically discussed in this manual should be performed by QUALIFIED SERVICE PERSONNEL ONLY. Performing main- tenance on your dishmachine may void your warranty if it is still in effect.

There are many things that operators can do to prevent catastrophic damage to the dishmachine. One of the major causes of component failure has to do with prescrapping procedures. A dishmachine is not a garbage disposal; any large pieces of mate- rial that are put into the machine shall remain in the machine until they are either broken up (after spreading out on your ware!) or physically removed. Strainers are installed to help catch debris, but they do no good if they are clogged. Have operators reg- ularly inspect the pan strainers to ensure (1) that they are free of soil and debris and (2) they are laying flat in the tub.

When cleaning out strainers, do NOT beat them on waste cans. The strainers are made of metal and can be forgiving; but once severe damage is done, it is next to impossible for the strainer to work in the way it was designed to. Wipe out strainers with a rag and rinse under a faucet if necessary. For stubborn debris, a toothpick should be able to dislodge any obstructions from the perforations. Always ensure that strainers are placed back in the machine before operation and that they lay flat in the tub.

You may wish to also refer to the page entitled “Detergent Control” in order to learn more about how your water hardness will effect the performance of your machine. Hard water makes dishmachines work harder and decreases efficiency.

Again, it is important to remind operators that trying to perform corrective maintenance on the dishmachine could lead to larg- er problems or even cause harm to the operator. If a problem is discovered; secure the dishmachine using proper shut down procedures as listed in this manual and contact a QUALIFIED SERVICE AGENCY.

Some problems, however, may having nothing to do with the machine itself and no amount of preventative maintanence is going to help. A common problem has to do with temperatures being too low. Verify that the water temperatures coming to your dishmachine match the requirements listed on the machine data plate. There can be a variety of reasons why your water tem- perature could be too low and you should discuss it with a QUALIFIED SERVICE AGENCY to determine what can be done.

By following the operating and cleaning instructions in this manual, you should get the most efficient results from your machine. As a reminder, here are some steps to take to ensure that you are using the dishmachine the way it was designed to work:

1.Ensure that the water temperatures match those listed on the machine data plate.

2.Ensure that all strainers are in place before operating the machine.

3.Ensure that all wash and/or rinse arms are secure in the machine before operating.

4.Ensure that drains are closed/sealed before operating.

5.Remove as much soil from dishes by hand as possible before loading into racks.

6.Do not overfill racks.

7.Ensure that glasses are placed upside down in the rack.

8.Ensure that all chemicals being injected to machine have been verified as being at the correct concentrations.

9.Clean out the machine at the end of every workday as per the instructions in the manual.

10.Always contact a QUALIFIED SERVICE AGENCY whenever a serious problem arises.

11.Follow all safety procedures, whether listed in this manual or put forth by local, state or national codes/regulations.

JP-24 Technical Manual 7610-002-49-79 Rev. D

Issued: 03-06-2006 Revised: N/A

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Contents FOR JACKSON MODELS JP-24 JP-24F JP-24B JP-24BF TECHNICAL MANUALHOT WATER SANITIZING UNDERCOUNTER DISHMACHINES March 6 P/N 7610-002-49-79 Revision DPage MADE REVISIONAPPLICABLE DETAILSJP-24B Model Serial No Installation Date Service Rep. Name Phone NoNOMENCLATURE FOR THE MODELS COVERED IN THIS MANUAL I. SPECIFICATION INFORMATION TABLE OF CONTENTSII. INSTALLATION/OPERATION INSTRUCTIONS PREVENTATIVE MAINTENANCESECTION SPECIFICATION INFORMATION SPECIFICATIONS of the JP-24/JP-24F SECTION 1 SPECIFICATION INFORMATION5 MINUTE TIMER OPERATING CYCLE SECONDS PERFORMANCE/CAPABILITIES OPERATING CAPACITY RACKS/HOUR5 MINUTE TIMER OPERATING CYCLE SECONDS WASH TIME SPECIFICATIONS of the JP-24B/JP-24BFDIMENSIONS JP-24 DIMENSIONS30.5 cm 22 5/8”SECTION INSTALLATION/OPERATION INSTRUCTIONS INSTALLATION INSTRUCTIONS SECTION 2 INSTALLATION/OPERATION INSTRUCTIONSELECTRICAL INSTALLATION INSTRUCTIONS OPERATION INSTRUCTIONS DETERGENT CONTROL CYCLE COUNTER RETROFIT KIT INSTRUCTIONS SECTION PREVENTATIVE MAINTENANCE SECTION 3 PREVENTATIVE MAINTENANCE SECTION TROUBLESHOOTING COMMON PROBLEMS SECTION 4 TROUBLESHOOTING SECTIONProblem Water overflow from bottom of door Problem Wash motor doesn’t operate on manual washProblem Rinse water not at required temperature range Problem Machine doesn’t drain when “OFF/DRAIN” switch is pressedProblem No indication of pressure SECTION SERVICE PROCEDURES RINSE SOLENOID VALVE REPAIR PARTS KIT SECTION 5 SERVICE PROCEDURESPREPARATION TOOLS REQUIREDRINSE SOLENOID VALVE REPAIR PARTS KIT CONTINUED 13. Slowly remove the valve bonnet. Note The spring for the plunger is located directly under the bonnet and may come free if you are not careful. Remove the plunger, spring and valve bonnet and place to the side Solenoid Valve Plunger Kit Includes plunger and spring Part number AFTER MAINTENANCE ACTIONSSPECIAL PARTS VACUUM BREAKER REPAIR PARTS KIT VACUUM BREAKER REPAIR PARTS KIT CONTINUED REPLACING THE PUMP MOTOR REPLACING THE PUMP MOTOR/REPLACING THE HEATERREPLACING THE BOOSTER TANK HEATER HeaterReplacing the Drain Valve REPLACING THE DRAIN VALVE REPLACING THE DRAIN VALVEMINAL ON THE MOTOR RINSE REGULATING THERMOSTAT REPLACEMENT Remove the thermostat bracket mounting nuts with the 3/8” nutdriver 9. Note regardless of the unit this is being done to, the con- cept is to ensure that the thermostat cannot come into contact with the heater leads or interfere with the placement of any covers SPECIAL NOTES SECTION PARTS SECTION SECTION 6 PARTS SECTION GAUGE PANEL ASSEMBLYITEM QTY DESCRIPTION Mfg. NoDESCRIPTION ELECTRICAL PANEL ASSEMBLY JP-24/F 208-240 VOLTELECTRICAL PANEL ASSEMBLY JP-24B/BF 208-240 VOLT ELECTRICAL PANEL ASSEMBLY JP-24B/BF 460 VOLT Mfg. No This panel is used with the following External Control Box OptionAMTRAK External Control Box Option FRONT VIEW EXTERNAL OPTION ELECTRICAL PANEL ASSEMBLY EXTERNAL OPTION & AMTRAK OPTIONINSIDE VIEW of AMTRAK & EXTERNAL OPTIONS RIGHT SIDE VIEW AMTRAK OPTIONELECTRICAL PANEL ASSEMBLY EXTERNAL OPTION & AMTRAK OPTION CONTINUED Decal, Power Disconnect Warning 09905-021-47-07 KICK PLATE ASSEMBLYNut, Nylon Wing, 1/4”-20 Control Panel Assembly 05700-011-40-93 Control Panel Only 460 Control Panel Assembly 05700-002-18-38INCOMING PLUMBING ASSEMBLY JP-24/JP-24F Vacuum Breaker AssemblyINCOMING PLUMBING ASSEMBLIES JP-24B/JP-24BF Connects to Rinse Injector Connects to Rinse Stiffener RINSE STIFFENER/RINSE HUB WELDMENTCoil & Housing only, 1/2” Complete 110 Volt Solenoid Valve Assembly, 1/2”Complete 220 Volt Solenoid Valve Assembly, 1/2” Complete Vacuum Breaker Assembly, 1/2” NPTSECTION 6 PARTS SECTION DRAIN VALVE ASSEMBLYDRAIN PLUMBING ASSEMBLY WASH MOTOR TO WASH TUB ASSEMBLY RINSE TANK & COMPONENTS/STRIP HEATER KIT PhaseJP-24B/BFRINSE TANK 40F RiseOrder this entire assembly using DOOR ASSEMBLYMISCELLANEOUS DOOR SUB-ASSEMBLIES Door Latch AssemblyRINSE ARM & WASH ARM ASSEMBLIES Wash Arm AssemblyRinse Arm Assembly FRAME & PANEL COMPONENTS/MISCELLANEOUS PARTS CYCLE COUNTER RETROFIT KIT SECTION ELECTRICAL SCHEMATICS JP-24/JP-24F 208-230 VOLT - 50/60 HERTZ - SINGLE PHASE SECTION 7 ELECTRICAL SCHEMATICSJP-24B/JP-24BF 208-230 VOLT - 50/60 HERTZ - SINGLE PHASE JP-24B/JP-24BF 460 VOLT - 60 HERTZ - THREE PHASE