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Jackson MSC 24 Service Manual

Low temperature model
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WORLD HEADQUARTERS & MANUFACTURING OPERATIONS
Highway 25E, P.O. Box 1060
Barbourville, KY 40906
888/800-JMSC
Fax: 606/523-9196
7610-100-04-00

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  • Page 1 WORLD HEADQUARTERS & MANUFACTURING OPERATIONS Highway 25E, P.O. Box 1060 Barbourville, KY 40906 888/800-JMSC Fax: 606/523-9196 7610-100-04-00...

  • Page 2: Table Of Contents

    INDEX INSIDE FRONT COVER WARRANTY SPECIFICATIONS GENERAL INSTRUCTIONS (Installation) INSTALLATION INSTRUCTIONS for WALL MOUNT DISPENSER UNIT ONLY INSTALLATION of TIE DOWN ASSEMBLY for CANADIAN STANDARDS GENERAL INSTRUCTIONS (Operation) OPERATOR'S INSTRUCTIONS for WALL MOUNT DISPENSING UNITS GENERAL INSTRUCTIONS (Preventive Maintenance) 24L CYCLE SEQUENCE CHART REMOVAL of WASH/RINSE HEAD ASSEMBLY (General Instructions) WASH/RINSE HEAD ASSEMBLY PICTORIAL TIMER for MODEL 24L...

  • Page 3: Specifications

    WASH/RINSE PUMP MOTOR (HP) ELECTRICAL REQUIREMENTS, ONLY 115 volt, 1 ph. 60 HZ. DIMENSIONS Height with Top 36" Height without Top 34-1/2" Width 24" Clearance, wall to machine 2-1/2" Depth 24" Maximum height for dishes 14" RACKS Standard Equipment for dishes...
  • Page 4 GENERAL INSTRUCTIONS (INSTALLATION) Note: Read the following instructions carefully. Proper installation of your Jackson Dishwasher will assure proper machine operation. Uncrating 24L: 1. Remove straps around carton. 2. Open top flaps of dishwasher carton. 3. Remove any packing from top and sides of machine that can be done with ease from top. 4.
  • Page 5 Installation of Model 24LM Top and Table gasket: These instructions are to be used for applying the adhesive backed sponge rubber strip to the top of the machine prior to setting the table in place. Included with the Model 24LM table is a 6' length of 1/4" thick x 1" wide sponge rubber adhesive backed stripping.

  • Page 6: Installation Instructions For Wall Mount Dispenser Unit Only

    INSTALLATION INSTRUCTIONS FOR WALL MOUNT DISPENSER UNIT ONLY 1. Supplied with the unit is a wall mounted dispenser unit consisting of three peristaltic pumps mounted inside of a stainless box with conduit and wires coming from the bottom. With the lower kick plate removed connect the conduit to the ledge of the unit and connect the plastic connector on the wires to the connector on the timer.

  • Page 7: Installation Of Tie Down Assembly For Canadian Standards

    INSTALLATION OF TIE DOWN ASSEMBLY FOR CANADIAN STANDARDS 1. Locate the desired floor area in which the unit is going to be installed. 2. Place the base cradle in the exact location the machine will set with the end having the holes drilled in it to the rear.
  • Page 8 GENERAL INSTRUCTIONS (OPERATION) Note: Read the following Instructions carefully. Proper operation of your Jackson Dishwasher will assure clean and sanitized glasses and dishes at optimum efficiency. Dish Preparation: 1. Scrape dishes thoroughly. 2. Pre-wash dishes by soaking or spraying with hose. 3.

  • Page 9: Operator's Instructions For Wall Mount Dispensing Units

    OPERATOR'S INSTRUCTIONS FOR WALL MOUNT DISPENSING UNITS Check that the pan strainer is clean. Strainer must be clean for proper machine operation (wash/rinse head must be removed first, then strainer may be removed for cleaning). Insert a rack of dishes and then close the door and turn handle. Check the levels of the detergent, rinse additive and sanitizing agent containers.

  • Page 10: L Cycle Sequence Chart

    24L CYCLE SEQUENCE CHART OPERATOR OPERATION TIME SECONDS Push Power Switch Energizes to Handle Switch Close Door Closes Door Side Switch Latch Door Handle Energizes the Machine Push Fill Switch Manually Fills Machine 38-42 Push Start Switch Energizes Timer Motor Dwell Time 57-63 Wash Cycle...
  • Page 11 ITEM DESCRIPTION ITEM DESCRIPTION 1865 WASH HEAD CAP WITH RACE 1875 WASH HEAD CENTER SHAFT 1870 WASH HEAD CAP SET SCREW 1936 WASH HEAD FIXED RACE 1940 WASH HEAD BEARING 1/4 " S/S 1886 WASH HEAD SHAFT HOLDING PIN 1890 WASH HEAD SMALL MANIFOLD 1096 UPPER PUMP HOUSING...

  • Page 12: Timer For Model 24L

    TIMER for MODEL 24L General Description: The timer is a self-contained (frame mounted) timer of the repeating cycle type. It is mounted on the lower control panel of the Jackson Dishwashing Machine to control the automatic functions of this machine. It consists of a clock motor which operates on 60 cycle, 110VAC.

  • Page 13: Timer For Model 24L (Wall Mount Dispensing Systems)

    TIMER for MODEL 24L WALL MOUNT DISPENSING SYSTEMS General Description: The timer is a self-contained (frame mounted) timer of the repeating cycle type. It is mounted on the lower control panel of the Jackson Dishwashing Machine to control the automatic functions of this machine. It consists of a clock motor which operates on 60 cycle, 110VAC.
  • Page 14 TIMER MOTOR and ADJUSTMENT to CAMS (FOR WALL MOUNT DISPENSING SYSTEMS) CAUTION: Always remove the power to the machine before working on the control panel or while servicing the components In the door panel. All electrical checks should be made by qualified personnel.

  • Page 15: Defective Motor

    DEFECTIVE MOTOR CAUTION: Always remove the power to the machine before working on the control panel or while servicing the components In the door panel. All electrical checks should be made by qualified personnel. A defective motor Is indicated by the fact that the cams do not rotate or the machine does not perform the automatic operations, or performs a specific part of the cycle continuously, but works okay on manual.

  • Page 16: Interlock System

    REPLACEMENT of SWITCHES in FRONT DOOR There are three switches installed in the door's upper right hand corner. These are the start, drain, and fill. Before working on the machine, it is important that the power be turned OFF at the customer's circuit breaker to prevent the possibility of electrical shock;...

  • Page 17: Checkout (Interlock System)

    CHECKOUT (INTERLOCK SYSTEM) Note: All electrical checks should be made by qualified service personnel. If it is determined that the proper power is being applied to the machine's incoming terminal blocks, then further check of the interlock system should be made. Note: This checkout would only be performed if none of the systems of the machine operate.

  • Page 18: Operator Controls

    OPERATOR CONTROLS The operator of this machine has only three control switches which he can operate. These switches are located in the top righthand corner of the machine's front door. 1. The Start Switch initiates automatic operation of the machine. 2.

  • Page 19: Sequence Of Machine Operations

    OPERATOR CONTROLS FOR WALL MOUNT DISPENSING SYSTEMS The operator of this machine has six control switches which he can operate. Three of these switches are located in the top righthand corner of the machine's front door and the remainder, in the dispenser box. 1.
  • Page 20 PERISTALTIC PUMP SANITIZING DISPENSING SYSTEM (FOR WALL MOUNT DISPENSING SYSTEMS) The three peristaltic pumps are mounted in the dispenser box which is attached to the wall or unit. The pump receive their electrical signals from two sources. The first source is the rinse/fill switch which is used to prime the pump when it is first put into operation and then every time the unit Is filled with fresh water to start a new meal period.
  • Page 21 PERISTALTIC PUMP SANITIZING DISPENSING SYSTEM (OPERATION) The three peristaltic pumps are mounted in the dispenser box which is attached to the wall or unit. The pump receive their electrical signals from two sources. The first source is the rinse/fill switch which is used to prime the pump when it is first put into operation and then every time the unit is filled with fresh water to start a new meal period.
  • Page 22 P/N 465 COMPLETE PUMP ASSEMBLY ITEM DESCRIPTION ITEM DESCRIPTION 465A PUMP MOTOR 465H FACE PLATE 465B PUMP HOUSING 465I PLATE MOUNTING 465C HOUSING MOUNTING BOLTS SCREWS (4) 8/32 (3) 10/32 FILLSTER HEAD 465J INTAKE OR SUCTION 465 D CAM ROLLER ASSEMBLY TUBING 465E CAM ROLLER SET SCREW 465J...

  • Page 23: Service Instructions

    SERVICE INSTRUCTIONS (INCOMING WATER SOLENOID VALVE) SOLENOID VALVE P/N 1420 To Take The Valve Apart: Disassembly — These valves may be taken apart by unscrewing the bonnet and the enclosing tube assembly from the valve body assembly. See Fig. 3. After unscrewing, carefully lift off the bonnet and enclosing tube assembly.
  • Page 24 SEAL and CERAMIC for PUMP SYSTEM (GENERAL INFORMATION) The wash and drain pump are part of the total motor pump system. One seal and ceramic are utilized to prevent the pump from leaking. Replacement of Seal and/or Ceramic: 1. Drain machine either by depressing drain switch or by baiting out. 2.

  • Page 25: Trouble Shooting Guide

    TROUBLE SHOOTING GUIDE PROBLEM CAUSE SOLUTION Water overflow out bottom of 1. Machine not level. 1. Level machine, slight tilt front door when wash pump to rear. is operating. 2. Overflow drain clogged. 2. Remove obstruction, checking inside of machine first. 3.
  • Page 26 TROUBLE SHOOTING GUIDE PROBLEM CAUSE SOLUTION Fill water runs continuously 1. Defective plunger in 1. Replace plunger. with circuit breaker controlling solenoid valve. machine turned off. 2. Defective diaphragm in 2. Check holes in diaphragm solenoid valve. cartridge to insure that they are open.

  • Page 27: Trouble Shooting Guide

    TROUBLE SHOOTING GUIDE PROBLEM CAUSE SOLUTION Machine doesn't drain when 1. Drain solenoid clogged. 1. Remove obstruction. drain switch Is depressed. 2. Defective drain switch. 2. Replace. 3. Defective motor or 3. Replace. motor start relay. 4. Defective drain solenoid. 4.

  • Page 28: Front View Of Machine

    FRONT VIEW OF MACHINE ITEM DESCRIPTION DOOR HANDLE ASSEMBLY SWITCHES — DRAIN, FILL. START FRONT DOOR 1889 WASH/RINSE ASSEMBLY 1420 SOLENOID (FILL) FLOW CONTROL 1536 "Y" STRAINER ELECTRICAL CONTROL PANEL MOUNTING PLATE 1251 UPPER RINSE HEAD ASSEMBLY REMOTE MOUNTING OF DISPENSING UNIT WALL MOUNT DISPENSER FEED TUBES...

  • Page 29: Back View Of Machine

    BACK VIEW OF MACHINE ITEM DESCRIPTION INCOMING WATER CONNECTION 1841 VACUUM BREAKER ASSEMBLY EQUALIZING VENT DRAIN — GRAVITY FEED 1081 PUMP & MOTOR ASSEMBLY...

  • Page 30: Leftside View Of Machine

    LEFT SIDE VIEW OF MACHINE ITEM DESCRIPTION 1841 VACUUM BREAKER ASSEMBLY DOOR HANDLE ASSEMBLY FRONT DOOR, OUTER 549A KICK PANEL INCOMING WATER • 120º • 140º F ADJUSTING FEET (4 PLACES) MOTOR 1081 DRAIN - GRAVITY FEED 1424 DRAIN SOLENOID VALVE SIDE FRAME &...

  • Page 31: Right Side View Of Machine

    RIGHT SIDE VIEW OF MACHINE ITEM DESCRIPTION 1841 VACUUM BREAKER ASSEMBLY 1889 WASH/RINSE ASSEMBLY SIDE FRAME & BRACE ADJUSTING FEET 549A KICK PANEL FRONT DOOR DOOR HANDLE ASSEMBLY OPTIONAL TOP...

  • Page 32: Bottom View Of Machine

    BOTTOM VIEW OF MACHINE ITEM DESCRIPTION 1081 PUMP MOTOR (WASH — RINSE) DRAIN HOSES OVERFLOW DRAIN — GRAVITY FEED 1424 DRAIN VALVE 1691 THERMOMETER 1536 "Y" STRAINER FLOW CONTROL 1420 SOLENOID — FRESH WATER...
  • Page 33 ITEM DESCRIPTION 1536 "Y" STRAINER REMOVEABLE FILTER FLOW CONTROL 1420 SOLENOID VALVE 1/2" PIPE UNION...
  • Page 34 PUMP AND M0TOR ASSEMBLY ITEM DESCRIPTION MOTOR MOUNTING PLATE 1085 1085 STATIONARY SEAL ASSEMBLY 1085 SHIM WASHERS 1085 ROTATING CERAMIC 1085 PROPELLER FOR DRAIN PUMP 1085 "O" RING SEAL 1085 DRAIN INLET PLATE 1095 SUCTION ADAPTER PLATE 1090 IMPELLER FOR WASH PUMP 1085 TRUSS HEAD SCREW 1095...
  • Page 35 ITEM DESCRIPTION 1691 THERMOMETER 1665 TERMINAL BOARD GROUNDING LUG 1207 MOTOR STARTING RELAY 1246 DRAIN RELAY (MOTOR REVERSING) 1713 TIMER SANITIZING PUMP (L/LF MODELS ONLY) (LOCATED BEHIND BRACKET) 1213 MOTOR RELAY...
  • Page 36 WASH/RINSE HEAD ASSEMBLY LOCATED ITEM DESCRIPTION 1889 WASH ASSEMBLY WASH RESERVOIR 1. GAUGE 2. BRACKET 3. NUTS...
  • Page 37 NOTE: ALL NEUTRAL WIRES “WHITE” ALL GROUND WIRES “GREEN” ALL OTHER WIRES “RED”...

  • Page 38: Parts List

    COMPLETE PARTS LIST for 24L Control Panel, wired (lower front) for 24L Door Handle Cam Nut Dispenser Peristaltic Pump, Complete 465A Dispenser Peristaltic Pump Motor 465B Dispenser Peristaltic Pump Housing 465C Dispenser Peristaltic Pump Housing Mounting Bolts 465D Dispenser Peristaltic Pump Cam Roller Assembly 465E Dispenser Peristaltic Pump Cam Roller Set Screw 465F...

  • Page 39: Parts List

    COMPLETE PARTS LIST for 24L 1647 Switch Bracket, for latch interlock 1656 Terminal Board, 3-pole 1691 Thermometer, Standard 1713 Timer, 110V, 7 Cams Adjustable. Wall Mount Units 1719 Timer, 115V for 24L(5cam) 6173500 1775 Timer Micro Switches, Plastic Module-Type Vacuum Breaker, Sloan, 1/2" 1841 1846 Vacuum Breaker, Sloan, Float and Seal Repair Kit...

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