Skyjack SJ3220 Service Manual
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Skyjack SJ3220 Service Manual

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SERVICE
MANUAL
SJ3220, SJ3226, SJ4720, SJ4726, SJ4732
DC ELECTRIC SCISSORS
223198ABA
August 2020
ANSI/CSA, CE, AS, KC

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Summary of Contents for Skyjack SJ3220

  • Page 1 SERVICE MANUAL SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 DC ELECTRIC SCISSORS 223198ABA August 2020 ANSI/CSA, CE, AS, KC...
  • Page 2 This field kit applies to Serial Number(s): SJ3220/3226: A/B101 000 001 to A/B101 999 999 SJ4720/4726/SJ4732: A/B102 000 001 to A/B102 999 999 Please refer to the website (www.skyjack.com) for contact information, other Serial Numbers, the most recent Technical Manuals and USB software.
  • Page 3 It may also be used to alert against unsafe practices. IMPORTANT IMPORTANT indicates a procedure essential for safe operation and which, if not followed, may result in a malfunction or damage to the MEWP . SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...
  • Page 4 Notes 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...

  • Page 5: Table Of Contents

    Specifications & Features - KC ............36 SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...
  • Page 6 Drive Manifold MB2 - SJ3220/26 & SJ4726/32 (ANSI/CSA) ....... .
  • Page 7 Telematics Harness ..............82 3.35 Electrical Schematic - SJ3220, SJ4726/32 - All Option (ANSI/CSA) ......83 3.36 Electrical Schematic - SJ3226 - All Option (ANSI/CSA) .
  • Page 8 Language Setting Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...

  • Page 9: Section 1 - Scheduled Maintenance

    2 years or 3000 hours, whichever occurs first. Any defective part will be replaced or repaired by your local Skyjack dealer at no charge for parts or labor. In addition, all products have a 5-year structural warranty.

  • Page 10: Maintenance And Inspection Schedule

    MEWP . relative law provisions obtaining in the country. Consult SKYJACK’s Service Department for optional Before attempting any repair work, disconnect the tires specifications and installation. main power conenctors.

  • Page 11: Hydraulic System & Component Maintenance And Repair

    6. When removing any hydraulic component, be sure to cap and tag all hydraulic lines involved. Also, plug the ports of the removed components. SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...

  • Page 12: Maintenance Hints

    2. Maintain a sufficient quantity of clean hydraulic oil of the proper type and viscosity in the hydraulic reservoir. 3. Keep all connections tight. 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...

  • Page 13: About This Section

    MEWP parked on a flat and level surface ▪ column. Disconnect the batteries by disconnecting the ▪ main power connectors. Legend Repair any damaged or malfunction ▪ Pass components before operating MEWP . Not applicable Keep records on all inspections. ▪ SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...

  • Page 14: Owner's Annual Inspection Record

    The Owner’s annual inspection record is located on the scissor assembly. It must be filled out after an annual inspection has been completed. Do not use the MEWP if an inspection has not been recorded in the last 13 months. 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...

  • Page 15: Frequent/Periodic/Annual/Pre-Delivery Inspection Checklist

    The undersigned has made sure that all areas in the list have received an inspection. The undersigned has told the machine owner of all inconsistencies in the inspection and corrected them before machine operation. Owner: User: SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...

  • Page 16: General Inspections

    Section 1 – Scheduled Maintenance General Inspections 1.5-1 Service Bulletins 1.5 General Inspections Go to www.skyjack.com and use your machine’s Do an inspection of the MEWP in this sequence: serial number to find related open service bulletins. WARNING 1.5-2 Annual Inspections Do not operate a MEWP that does not function Do a check on the machine’s service record to find...

  • Page 17: Base Inspection

    Make sure there is no visible damage. ▪ WARNING Corrosion hazard. Do not touch battery acid. Wear the correct PPE. If the battery acid touches you, immediately flush the area with cold water and get medical aid. SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...
  • Page 18 Make sure that the steer linkages and bushings ▪ WARNING are correctly attached. Do not use tires other than the tires that Skyjack Make sure there is no visible damage. ▪ specifies for this MEWP . Do not mix different types Grease points ▪...
  • Page 19 Make sure all the manual valves operate correctly ▪ and do not seize. Hydraulic pump and motor ▪ Make sure there are no loose or missing ▪ fasteners. Make sure there is no visible damage. ▪ SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...
  • Page 20 Make sure there is no visible damage. ▪ C - Annual inspection ▪ Make sure that the disc or pin brakes show no ▪ signs of wear and/or physical damage. Replace the disc or pin brakes if necessary. ▪ 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...

  • Page 21: Scissors Inspection

    ▪ and right side of the MEWP are correctly attached. Make sure there is no visible damage. ▪ Make sure there is no dirt or blockages in the ▪ slider’s and roller’s travel paths. SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...
  • Page 22 Area is clear of dust or metal shavings ▪ immediately removed from service and repaired Pin retainers are installed by a qualified technician. Speak to the Skyjack ▪ service department for directions on how to repair the unit. 1. Do an inspection of the scissor pin connections.
  • Page 23 Examples of damaged pin connections: Broken retainer bolt Center Pin - Outer Rust around the pin Rotated pin Rust around pin boss Center Pin - Middle Thrust washer Broken pin boss Stress cracks Center Pin - Inner SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...
  • Page 24 Cracks in welds or the surrounding metal, or rust ▪ forming in the area. Bearing block degradation Broken, missing, or Cracks in weld or loose retainers or bolts surrounding metal, rust in the area Note: weld intentionally not located at bolt area 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...

  • Page 25: Platform Inspection

    Make sure that the fall-protection anchorages are ▪ Make sure the lock-pins are correctly attached. ▪ correctly installed. 2. Use the MEWP ladder to exit the platform. Make sure there is no visible damage. ▪ SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...

  • Page 26: Function Tests

    Before you do the function tests, look for the ▪ operation manual with the same serial number as your MEWP . The operation manual has the instructions on which tests to do and how to do them correctly and successfully. 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...

  • Page 27: Section 2 - Maintenance Tables And Diagrams

    100R13 SHORT 90°, FEMALE, 37° JIC, SWIVEL SHORT 90°, FEMALE, 37° JIC, SWIVEL 100R17 FEMALE, 37° JIC, SWIVEL REUSABLE MALE PIPE THREAD FITTING 300 PSI REUSABLE MALE PIPE THREAD FITTING NO FITTING 300 PSI SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...
  • Page 28 100R19 MEDIUM 90°, FEMALE, 37° JIC, SWIVEL FEMALE, 37° JIC, SWIVEL 100R19 LONG 90°, FEMALE, 37° JIC, SWIVEL FEMALE, 37° JIC, SWIVEL 100R19 LONG 90°, FEMALE, SAE ORFS, SWIVEL FEMALE, SAE ORFS, SWIVEL 100R15 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...

  • Page 29: Torque Specifications For Fasteners (Us)

    1 1/2-6 ft-lb 1180 2630 1979 4284 3200 1/2-20 ft-lb 2200 1640 3560 2660 1 1/2-12 1329 2983 2224 4827 3606 NOTE: Lubed includes lubricants such as lubrizing, oil, grease, or uncured Loctite . 1374AA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...

  • Page 30: Torque Specifications For Fasteners (Metric)

    1101 M33 x 3.50 1990 1493 2849 2137 ft-lb 1886 1415 2699 2024 M36 x 4.00 2557 1918 3659 2744 NOTE: Lubed includes lubricants such as lubrizing, oil, grease, or uncured Loctite . 1375AA 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...

  • Page 31: Torque Specifications For Hydraulic Couplings & Hoses

    Max. Min. Max. Min. Max. 1/4" 6.75 1/4" 3/8" 3/8" 1/2" 27.66 1/2" 5/8" 46.33 5/8" 3/4" 72.33 3/4" 1" 100.5 1" 1 1/4" 101.5 1 1/4" 1 1/2 1 1/2 2" 2" 1276AA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...

  • Page 32: Specifications & Features - Ansi/Csa

    Sound Pressure Level at Platform Level Does not exceed: 70 db(A) * Weight with standard 0.9 m extension platform. Refer to serial nameplate for specifi c applications. 1900AA Note: Emission sound pressure level does not exceed 70 dB(A) . 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...

  • Page 33: Specifications & Features - Ansi/Csa Powerdeck And Acpp

    Sound Pressure Level at Platform Level Does not exceed: 70 db(A) * Weight with standard 0.9 m extension platform. Refer to serial nameplate for specifi c applications. 2051AA Note: Emission sound pressure level does not exceed 70 dB(A) . SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...

  • Page 34: Specifications & Features - Ce

    Sound Pressure Level at Platform Level Does not exceed: 70 db(A) * Weight with standard 0.9 m extension platform. Refer to serial nameplate for specifi c applications. 1890AA Note: Emission sound pressure level does not exceed 70 dB(A) . 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...

  • Page 35: Specifications & Features - As

    Sound Pressure Level at Platform Level Does not exceed: 70 db(A) * Weight with standard 0.9 m extension platform. Refer to serial nameplate for specifi c applications. 1891AA Note: Emission sound pressure level does not exceed 70 dB(A) . SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...

  • Page 36: Specifications & Features - Kc

    Sound Pressure Level at Platform Level Does not exceed: 70 db(A) * Weight with standard 0.9 m extension platform. Refer to serial nameplate for specifi c applications. 1892AA Note: Emission sound pressure level does not exceed 70 dB(A) . 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...

  • Page 37: Maximum Platform Capacities (Evenly Distributed)

    0 m/s 400 N 2 Persons [0 mph] 90 lbf 318 kg 113 kg 4732 1 Person 1.5˚ × 3.5˚ [700 lb] [250 lb] 12.5 m/s 200 N 1 Person [28 mph] 45 lbf 1901AB SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...

  • Page 38: Maximum Platform Capacities (Evenly Distributed)

    1 Person 1.5˚ × 3.5˚ 12.5 m/s 1 Person 200 N No wind 2 Persons 400 N 4732 318 kg 113 kg 1 Person 1.5˚ × 3.5˚ 12.5 m/s 1 Person 200 N 1893AA 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...

  • Page 39: Floor Loading Pressure (Ansi/Csa)

    . Note: The LCP or OFL that an individual surface can withstand varies from structure to structure and is generally determined by the engineer or architect for that particular structure . SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...

  • Page 40: Floor Loading Pressure (Ce)

    . Note: The LCP or OFL that an individual surface can withstand varies from structure to structure and is generally determined by the engineer or architect for that particular structure . 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...

  • Page 41: Floor Loading Pressure (As)

    . Note: The LCP or OFL that an individual surface can withstand varies from structure to structure and is generally determined by the engineer or architect for that particular structure . SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...

  • Page 42: Floor Loading Pressure (Kc)

    . Note: The LCP or OFL that an individual surface can withstand varies from structure to structure and is generally determined by the engineer or architect for that particular structure . 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...

  • Page 43: Torque Specifications

    Torque (lb-in) max Torque (Nm) max 4.07 13.56 20.34 20.34 33.9 33.9 40.68 47.46 Newton-meter = Nm Pound-foot = lb-ft Pound-inch = lb-in 2001AA Additional Torque Specifi cations may be found in Section 5. SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...
  • Page 44 Notes 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...

  • Page 45: Section 3 - System Component Identification And Schematics

    Section 3 – System Component Identification and Schematics SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...

  • Page 46: Electrical Symbol Chart

    SINGLE POLE VACUUM POTENTIOMETER SINGLE THROWN LEVEL SENSOR SWITCH RELAY DOUBLE POLE TEMPERATURE SINGLE POLE DOUBLE POLE DOUBLE THROW SWITCH DOUBLE THROW SINGLE THROW RELAY RELAY RELAY TRIPLE POLE RHEOSTAT DIODE DOUBLE THROW RELAY 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...

  • Page 47: Hydraulic Symbol Chart

    MOTOR OPEN PORT CLOSED VALVE THREE POSITION TWO POSITION TWO POSITION FOUR WAY TWO WAY THREE WAY VALVE CLOSED CENTER NORMALLY CLOSED PORT OPEN VALVE PRESSURE PILOT LINES Dashed MAIN LINES Solid TRANSDUCER SERVO SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...

  • Page 48: Wire Number And Color Code

    This table is to be used as a wire number/color reference for electrical drawings and schematics. All wire numbers will retain their original color coding, for example if wire 7 is red, wire 7A, 7B, and 7C will also be red. 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...

  • Page 49: Hydraulic Parts List

    228040 MANIFOLD, Main (SJ3226, SJ4720/26/32 AS, KC) 228036 MANIFOLD, Main - Powerdeck (ANSI/CSA Only) 199661 MANIFOLD, Rear (SJ3220/26, SJ4720/26/32 ANSI/CSA) 204420 MANIFOLD, Rear (SJ3220/26 CE, AS, KC) 211845 MANIFOLD, Rear (SJ4720/26/32 CE, AS, KC) SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...
  • Page 50 130407 ORIFICE, Brake - 0.106” (SJ4720/26/32 ANSI/CSA) 130407 ORIFICE, Brake - 0.051” (SJ3220/26 ANSI/CSA) 161936 PUMP , DC Motor (SJ3220/26, SJ4720/26/32 ANSI/CSA, AS, KC) 165610 PUMP , DC Motor (ANSI/CSA EE-Rated) 161938 PUMP , DC Motor (SJ4720/26/32 CE) 165932 PUMP , Hand...

  • Page 51: Electrical Parts List

    217934 TRANSDUCER, Pressure - 3000 PSI (SJ3220, SJ4720/26/32) 217933 TRANSDUCER, Pressure - 2000 PSI (SJ3226) 210051 SWITCH, Main Disconnect 147054 SWITCH, Lift/Lower 207741 SWITCH, Lift/Off/Drive 147053 SWITCH, Platform - Emergency Stop 220494 SWITCH, SGLE SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...
  • Page 52 SWITCH, Key - Idle/Platform/Base (CE) 102853 SWITCH, Toggle - Powerdeck Enable 102853 SWITCH, Toggle - Powerdeck Extend/Retract 171911 SWITCH, Indoor Option (SJ3226 & SJ4740) 115574 SWITCH, Torque 147053 SWITCH, Base - Emergency Stop 212204 SWITCH, Emergency Lowering 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...

  • Page 53: Drive Manifold Mb2 - Sj3220/26 & Sj4726/32 (Ansi/Csa)

    Drive Manifold MB2 - SJ3220/26 & SJ4726/32 (ANSI/CSA) Section 3 – System Component Identification and Schematics 3.6 Drive Manifold MB2 - SJ3220/26 & SJ4726/32 (ANSI/CSA) To Main Manifold Differential Valve 2H-18A Orifice To Left Motor Free-wheeling Valve To Left Motor...

  • Page 54: Drive Manifold Mb2 - Sj3220/26 (Ce, As & Kc)

    Section 3 – System Component Identification and Schematics Drive Manifold MB2 - SJ3220/26 (CE, AS & KC) 3.7 Drive Manifold MB2 - SJ3220/26 (CE, AS & KC) 3H-18A-1 Speed Valve A 3H-18A-2 Free-wheeling Valve Speed Valve A Flow Divider Valve...

  • Page 55: Drive Manifold Mb2 - Sj4720/26/32 (Ce, As & Kc)

    Speed Valve A 3H-18A-1 3.9 Brake Manifold MB6 - SJ4720/26/32 (CE, AS & KC) Auto Reset Brake Override Brake Release Hand Pump To Drive Manifold To Left Brake Port To Right Brake Port M196578AD_DriveMan, M196578AD_BrakeMan SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...

  • Page 56: Single Lift Cylinder Manifold Mb5 - Sj3220, Sj4720

    Section 3 – System Component Identification and Schematics Single Lift Cylinder Manifold MB5 - SJ3220, SJ4720 3.10 Single Lift Cylinder Manifold MB5 - SJ3220, SJ4720 2H-13-1 Holding Valve Main Manifold 3H-14 Pressure Transducer M195285AB-CylManifold 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...

  • Page 57: Dual Lift Cylinder Manifold Mb3 & Mb4 - Sj3226, Sj4726/32

    3.11 Dual Lift Cylinder Manifold MB3 & MB4 - SJ3226, SJ4726/32 Lower Cylinder Relief Valve 2H-13-1 Holding Valve Relief Valve 2H-13-2 Holding Valve To Upper Lift Cylinder Pressure Transducer To Main Manifold 3H-14 M195800AC_CylinderManifolds SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...

  • Page 58: Powerdeck Manifold Mb1 - Sj3220, Sj4720

    Section 3 – System Component Identification and Schematics Powerdeck Manifold MB1 - SJ3220, SJ4720 3.12 Powerdeck Manifold MB1 - SJ3220, SJ4720 To Powerdeck Cylinder Extend To Powerdeck Cylinder Retract 4H-27 Retract Platform Valve 4H-26 Extend Platform Valve M160463AA 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...

  • Page 59: Platform Control Box Wiring

    TO S7 JOYSTICK PROP . OUT ORANGE/BLACK BLUE 5V SUPPLY GREEN YELLOW PIN NO. COLOUR CIRCUIT NO. WHITE BLUE ORANGE BLACK BLUE/WHITE GREEN/WHITE GREEN NOT USED WHITE/BLACK RED/BLACK ORANGE/BLACK GREEN/BLACK TIED BACK BLUE/BLACK BLACK/WHITE RED/WHITE M212617AC SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...

  • Page 60: Platform Control Box Wiring - Sgle

    GREY ORANGE/BLACK PROP . OUT BLUE 5V SUPPLY GREEN YELLOW PIN NO. COLOUR CIRCUIT NO. WHITE BLUE ORANGE BLACK BLUE/WHITE GREEN/WHITE GREEN NOT USED WHITE/BLACK RED/BLACK ORANGE/BLACK GREEN/BLACK TIED BACK BLUE/BLACK BLACK/WHITE RED/WHITE M220967AA 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...

  • Page 61: Platform Control Box Wiring - Acpp

    PIN NO. COLOUR CIRCUIT NO. DESCRIPTION WHITE TO MALE SPADE TERMINAL BLACK TO JOYSTICK CONNECTOR PIN-4 GREEN TO 07 FEMALE SPADE TERMINAL TO EMERGENCY STOP (NC BLOCK PIN-1) NOT USED NOT USED NOT USED M213774AC SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...

  • Page 62: Base To Platform Control Cable

    Section 3 – System Component Identification and Schematics Base to Platform Control Cable 3.16 Base to Platform Control Cable CAVITY NO. COLOUR CIRCUIT NO. WHITE BLUE ORANGE BLACK BLUE/WHITE GREEN/WHITE GREEN NOT USED WHITE/BLACK RED/BLACK ORANGE/BLACK GREEN/BLACK BLUE/BLACK BLACK/WHITE RED/WHITE M211921AB 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...

  • Page 63: Base Control Wiring

    PIN 4 - 14A (BLACK) PIN 5 - 10 (WHITE/BLACK) PIN 6 - 08C (BLUE) PIN 7 - N/C (RED/BLACK) PIN 8 - 60 (WHITE) 1 2 3 4 DEUTSCH EMERGENCY STOP SWITCH M212706AB SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...

  • Page 64: Base Control Wiring - Acpp

    PIN 5 - 10 (WHITE/BLACK) PIN 6 - 8C (BLUE) PIN 7 - N/C (RED/BLACK) PIN 8 - 60 (WHITE) DEUTSCH TO POWERDECK TO BASE HARNESS PIN 1 - 26A (BLACK/WHITE) PIN 2 - 27A (BLUE/BLACK) M213768AB 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...

  • Page 65: Emergency Lowering Switch Wiring

    PIN 1 - 05 (PURPLE/BLACK) PIN 2 - 98B (WHITE) PIN 3 - 13B (ORANGE) 6 5 4 PIN 4 - 13 (ORANGE) PIN 5 - 00C (WHITE) PIN 6 - 00 (WHITE) M212536AE SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...

  • Page 66: Limit Switch Wiring

    Section 3 – System Component Identification and Schematics Limit Switch Wiring 3.20 Limit Switch Wiring Hydraulic Tray Side COLOUR CIRCUIT NO. BLACK/WHITE BLACK Battery Tray Side COLOUR CIRCUIT NO. BLACK/WHITE BLACK M210226AA_M210227AA 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...

  • Page 67: Limit Switch Wiring - Anti-Overrising Posts (Kc Only)

    Anti-Overrising Posts Limit Switches CAVITY COLOUR BROWN BLACK BLUE BLACK/WHITE YELLOW/GREEN (CUT OFF) Anti-Overrising Posts Limit Switches - Add 2 Posts CAVITY COLOUR CAVITY COLOUR GREEN GREEN BLACK BLACK/WHITE WHITE WHITE YELLOW/GREEN (CUT OFF) M208038AA_M220080AA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...

  • Page 68: Anti-Overrising Harnesses (Kc Only)

    51 - BLACK WHITE BLACK SCHEMATIC VIEW Anti-Overrising Posts - Scissor Harness CAVITY COLOUR LABEL TERMINATION GREEN 08 C TERM. MALE 18-22 GA NOT USED WHITE FEMALE WIRE PIN BLACK FEMALE WIRE PIN M212440AB_M220079AA 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...

  • Page 69: Electrical Harnesses

    TERMINAL COLOUR BLACK (+12 VDC) BLACK (+12 VDC) WHITE (GND) WHITE (GND) Pressure Transducer Harness Prop Lowering Valve Harness (CE Only) CIRCUIT # COLOR DESCRIPTION WHITE GROUND BLACK +24 VDC PROP . LOWER M211926AB_M211948AC_M220951AB_M211925AC SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...

  • Page 70: Powerdeck Harnesses

    HARNESS BLACK MALE SPADE Powerdeck CIRCUIT # COLOR DISCRIPTION CIRCUIT # COLOR DISCRIPTION GREEN TO PIN8 ON CONTROLLER P4 WHITE TO POWERDECK CONTROL BOX GREEN BLACK TO PIN9 ON CONTROLLER P4 HARNESS BLACK M207879AD_M209557AC_M216663AC 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...
  • Page 71 TO PIN10 ON CONTROLLER P5 Powerdeck Base Control CIRCUIT # COLOR DESCRIPTION CIRCUIT # COLOR DESCIPTION WHITE TO BASE CONTROL WHITE TO PIN2 ON EZ-LIFT P4 HARNESS BLACK BLACK TO PIN3 ON EZ-LIFT P4 M216896AB_M216895AB SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...

  • Page 72: Interlocks Harness (Ansi/Csa Acpp)

    CORD AT 5 PIN CONNECTOR TO EXTENSION PLATFORM WHISKER LIMIT SW. TERM. 1 - 8E BLACK TERM. 2 - 8A WHITE TO FRONT GATE LIMIT SW. TERM. 1 - 07 BLACK TERM. 2 - 7A WHITE M213835AB M212635AB_M231543AA 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...

  • Page 73: Outdoor Switch Wiring And Harness (Sj3226 Ansi/Csa Only)

    CONTROLLER COLOUR DESCRIPTION TO "P3-4" GREEN CONTROLLER WHITE BLACK TO "08C" MAIN HARNESS CAVITY COLOUR LABEL TERMINATION GREEN 08 C TERM. MALE 18-22 GA NOT USED WHITE FEMALE WIRE PIN BLACK FEMALE WIRE PIN SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...
  • Page 74 Notes 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...

  • Page 75: Main Manifold Mb1

    4H-16 - 1 5 To Rear Manifold Quick Disconnect 4H-15 (CE/AS/KC) To Rear Manifold To Rear Manifold - 2 3 4H-23 - 2 4 To Right Steer Cylinder 4H-24 To Left Steer Cylinder M228041AA_Ports 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...

  • Page 76: Hydraulic Schematics - Sj3220/26 Ansi/Csa

    3.28 Hydraulic Schematics - SJ3220/26 ANSI/CSA BRAKE CYLINDER RIGHT DRIVE MOTOR .051" A=REVERSE B=FORWARD 3226 UPPER LIFT CYLINDER FRONT RIGHT SAE 6 REAR RIGHT SAE 6 .040" SAE 6 Bore 4.0 FLOW Stroke 49.06 DIVIDER COMBINER 3H-18A-2 3220 SPEED VALVE A...

  • Page 77: Hydraulic Schematics - Sj3220/26 Ce

    3.29 Hydraulic Schematics - SJ3220/26 CE RIGHT BRAKE SAE 04 RIGHT DRIVE MOTOR A=REVERSE B=FORWARD 4726/4732 UPPER LIFT AUTO BRAKE CYLINDER RESET HAND PUMP BRAKE FRONT RIGHT SAE 6 REAR RIGHT SAE 6 OVERRIDE SAE 6 SAE 04 MB6 BRAKE MANIFOLD .040"...

  • Page 78: Hydraulic Schematics - Sj3220/26 As/Kc

    3.30 Hydraulic Schematics - SJ3220/26 AS/KC RIGHT BRAKE RIGHT DRIVE MOTOR A=REVERSE B=FORWARD 3226 UPPER LIFT CYLINDER FRONT RIGHT SAE 6 REAR RIGHT SAE 6 .040" SAE 6 Bore 4.0 FLOW Stroke 49.06 DIVIDER COMBINER 3H-18A-2 3220 SPEED VALVE A...

  • Page 79: Hydraulic Schematics - Sj4720/26/32 Ansi/Csa

    FORWARD 3H-14 3H-17 LIFT RELIEF PORT BRAKE VALVE PLUGGED RELEASE 3250 psi .106" 4H-23A 4H-15 RIGHT REVERSE 4000 PSI RELIEF 10:1 VALVE MB1 MAIN MANIFOLD SYSTEM PUMP (3.59 CC / 0.219 CIR) FILTER M216189AD 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...

  • Page 80: Hydraulic Schematics - Sj4720/26/32 Ce

    LOWER 3H-14 3H-17 RELIEF PORT LIFT BRAKE VALVE PLUGGED RELEASE 2750 psi .089" 4H-23A 4H-15 RIGHT REVERSE 4000 PSI RELIEF 10:1 VALVE MB1 MAIN MANIFOLD SYSTEM PUMP (3.59 CC / 0.219 CIR) FILTER M216190AD SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...

  • Page 81: Hydraulic Schematics - Sj4720/26/32 As/Kc

    FORWARD 3H-14 3H-17 RELIEF PORT LIFT BRAKE VALVE PLUGGED RELEASE 2750 psi .106" 4H-23A 4H-15 RIGHT REVERSE 4000 PSI RELIEF 10:1 VALVE MB1 MAIN MANIFOLD SYSTEM PUMP (3.59 CC / 0.219 CIR) FILTER M216191AD 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...

  • Page 82: Telematics Harness

    CANL - GREEN CANH - YELLOW TO TRACKUNIT TO BATTERY TO BMS 11 12 1A FUSE S08C S08D 08C-PU/WH-18 IEC 9.1 S05B 19D-WH/RD-18 CANH-YL-20-STP SCANH1 SCANH2 CANH-YL-20-STP TO CHARGER CANL-GN-20-STP SCANL1 SCANL2 CANL-GN-20-STP M228875AE SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...

  • Page 83: Electrical Schematic - Sj3220, Sj4726/32 - All Option (Ansi/Csa)

    3.35 Electrical Schematic - SJ3220, SJ4726/32 - All Option (ANSI/CSA) 24V DELTA-Q CHARGER LINE VOLTAGE CONTROL BOX BASE (PE) ELEVATE TELEMATICS OPTION CHARGER BMS OPTION CANL CANH CANL CANL CRD1 CRD2 CRD3 CANH CANH ELEVATE TELEMATICS TEMP . SENSOR VREG D (9V IN) -t°...

  • Page 84: Electrical Schematic - Sj3226 - All Option (Ansi/Csa)

    P6-4 DISPLAY MODULE ALL MOTION, TILT & P6-3 OVERLOAD BEEPER P6-2 BP-29 GREEN P1-9 P6-1 INDOOR SWITCH CRD4 BLACK P3-4 INDOOR LIGHT WHITE BATTERY CHARGE INDICATOR WHITE HORN HORN SWITCH GREEN/WHITE HORN GREEN/BLACK M231544AD SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...

  • Page 85: Electrical Schematic - All Option (Ce)

    P6-4 P6-3 DISPLAY MODULE ALL MOTION, TILT & OVERLOAD BEEPER P6-2 BP-29 P1-9 P6-1 BATTERY CHARGE INDICATOR WHITE - PIN 1 HORN SWITCH GREEN/WHITE - PIN 7 HORN HORN M217927AE GREEN/BLACK - PIN 13 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...

  • Page 86: Electrical Schematic - All Option (As)

    P6-4 P6-3 ALL MOTION, TILT & P6-2 DISPLAY MODULE OVERLOAD BEEPER P6-1 BP-29 P1-9 BATTERY CHARGE INDICATOR WHITE - PIN 1 HORN HORN SWITCH GREEN/WHITE - PIN 7 HORN GREEN/BLACK - PIN 13 M217929AE SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...

  • Page 87: Electrical Schematic - All Option (Kc)

    P1-9 P6-1 INDOOR N.O. SWITCH CRD4 BLACK P3-4 ADDITIONAL SWITCH OPTION INDOOR LIGHT WHITE LS7A BLACK P3-11 N.C. CRD4 WHITE P3-10 N.O. GREEN BATTERY CHARGE INDICATOR WHITE HORN HORN SWITCH GREEN/WHITE HORN GREEN/BLACK M217928AC 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...

  • Page 88: Electrical Schematic - Sj4726 - Acpp

    EXT/RET P4-2 DECK DECK P4-3 ENABLE EXT/RET GREEN 4H-26 P4-8 P5-7 DECK EXTEND SOLENOID CRD5 BLACK P4-9 4H-27 WHITE P5-10 DECK RETRACT SOLENOID BATTERY CHARGE INDICATOR WHITE HORN HORN SWITCH GREEN/WHITE HORN GREEN/BLACK M213771AC SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...
  • Page 89 3.40 Main Harness - SJ3220/26 TO HORN J6-1 49 - GREEN BACK VIEW BACK VIEW BACK VIEW 00 - WHITE J6-2 TO FLASHING LIGHT BACK VIEW BACK VIEW BACK VIEW 08C - PURPLE/WHITE 22 - ORANGE/BLUE TO P6 ON EZ-LIFT MODULE...
  • Page 90 3.40 Main Harness Wiring - SJ3220/26 TO POTHOLE TO CHARGER TO ANGLE TO FLASHING TO BATTERY TO PRESSURE J6-2 TO CB1 LIMIT SWITCHES TO CONTROL CABLE TO CB2 CUTOUT TRANSDUCER TO HORN LIGHT TO BEEPER DISCONNECT TO REAR MANIFOLD TO BASE CONTROLS...
  • Page 91 PIN 9 - N/U PIN 10 - N/U PIN 10 - 37 GREEN/WHITE TO B- TERMINAL ON PIN 11 - N/U PIN 11 - N/U CONTROLLER PIN 12 - 13 ORANGE PIN 12 - N/U J6-1 M224527AC SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...
  • Page 92 J6-1 TO B- ON KIT (KC ONLY) TO P6 ON CONTROLLER TO P5 ON CONTROLLER TO P4 ON CONTROLLER TO P3 ON CONTROLLER TO P2 ON CONTROLLER TO P1 ON CONTROLLER SKYCODED MODULE M224527AC_pg2 SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...
  • Page 93 Notes 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...

  • Page 94: Section 4 - Troubleshooting Information

    “probable cause.” The information in the right-hand column, in bold text, represents the “remedy” to the “probable cause” directly beside it. See the example below for clarification. 1. Probable cause Remedy SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...

  • Page 95: Electrical System

    #98B on switch. Replace switch if no continuity between either one of the switch poles. 9. Loose or broken wires from fuse F1 to Battery to Check continuity to #03A. Replace if defective. Main Disconnect S1. SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...
  • Page 96 B- lug on Control module CM1. Check Control Module display screen. Use Diagnostic Menu to see switch and sensor status. 20. External or internal fault detected by Control Module CM1. Correct trouble code as displayed. Replace module if defective. 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...

  • Page 97: All Controls Except For Down Function Inoperative

    Replace if defective. Check Control Module display screen. Use Diagnostic Menu to see switch and sensor status. 10. External or internal fault detected by Control Module CM1. Correct trouble code as displayed. Replace module if defective. SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...

  • Page 98: All Controls Inoperative From Base Control Console

    (when selected on Up) 10. Open or defective Lift/Lower switch S2. Check continuity between wire #10 and wire #13A on switch (when selected to Dn) Replace switch if no continuity when operating switch. 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...

  • Page 99: No Up Function From Base Control Console

    Replace if defective. 5. Loose or broken wire #00 from Battery (-) to Up Check continuity. Replace if defective. valve coil 3H-14. 6. Defective up valve coil 3H-14. Check continuity through coil. Replace if defective. SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...

  • Page 100: No Down Function From Base Control Console

    5. (CE machines only) Loose or broken wire #13C from Control Module CM1 pin #P2-8 to Use HMI Diagnostic menu to make sure output P2-8 Proportional Lowering Valve 2H-13C. signal is present. Replace if defective. 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...

  • Page 101: No Emergency Down Function From Base Control Console

    #00D on switch, and check continuity between wire Open or defective Emergency Lowering switch ▪ #05 and wire #13 on switch. S51. Replace switch if no continuity on both of these two (2) contacts of switch. SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...

  • Page 102: All Controls Inoperative From Platform Control Console

    4. Open or defective Base Emergency Stop switch Check continuity between wire #05 and wire #05A. S28. Replace switch if defective. 5. Incorrect selection of Base Key Switch S10. Check switch is on Platform selection. 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...
  • Page 103 Use HMI Diagnostic menu to make sure input P3-7 (lift signal) signal is present. Replace if defective. 15. Loose or broken wire #08 from platform Check continuity. Replace if defective. Emergency Stop switch S4 to Joystick S7. SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...
  • Page 104 Control Module CM1 pin #P1-1. (5V input signal) Check Control Module display screen. Use Diagnostic Menu to see switch and sensor status. 24. External or internal fault detected by Control Module CM1 Correct trouble code as displayed. Replace module if defective. 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...

  • Page 105: No Up Function From Platform Controls (Ansi/Csa, Ce, And As)

    Check Control Module display screen. Use Diagnostic Menu to see switch and sensor status. 11. External or internal fault detected by Control Module CM1. Correct trouble code as displayed. Replace module if defective. SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...

  • Page 106: No Up Function From Platform Controls (Kc)

    Check continuity. Replace if defective. LS7A. Check switch. 11. Open or defective Anti-Overrising Limit switch Check continuity between wire #52A and wire #51. LS7A N.C. contact on Anti-Overrising Limit switch LS7A Replace limit switch if defective. 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...
  • Page 107 19. Machine not level. Check Control module CM1 display. Check Control Module CM1 display screen and 20. Check machine Tilt Procedure. perform Tilt Calibration Procedure ONLY if level has been checked and needs adjustment SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...

  • Page 108: 10 No Down Function From Platform Controls

    P1-8 signal is present (pulsed). Check Control Module display screen. Use Diagnostic Menu to see switch and sensor status. 9. External or internal fault detected by Control Module CM1. Correct trouble code as displayed. Replace module if defective. 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...

  • Page 109: 11 Right Steer Inoperative

    Select Drive. Check switch. Replace if defective. mode. Check switch. Check continuity between wire #08 and wire #24 3. Defective Left Steer switch S7-3. on switch (Left Steer signal) Replace switch if no continuity when operating switch. SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...

  • Page 110: 13 Forward Drive Function Inoperative

    Replace Joystick if no continuity when operating switch. 6. Defective Joystick S7. Check joystick. Replace if defective. 7. Loose or broken wire #00B from Control Module Check continuity. Replace if defective. CM1 pin #P1-3 to Joystick S7 (0V reference). 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...

  • Page 111: 14 Reverse Drive Function Inoperative

    Check continuity. Use HMI Diagnostic menu to 4. Loose or broken wire #59 from Joystick S7 to make sure proportional input P1-2 signal is present. Control Module CM1 pin #P1-2. Replace if defective. SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...
  • Page 112 Check continuity through coil. Replace if defective. Check Control Module display screen. Use Diagnostic Menu to see switch and sensor status. 16. External or internal fault detected by Control Module CM1 Correct trouble code as displayed. Replace module if defective. 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...

  • Page 113: 15 No Drive Or Steer When Platform Elevated

    Check continuity. Replace if defective. Emergency Stop switch S4 to Torque switch S27. Check switch. Check continuity between wire #08 and wire #18 at 3. Defective Torque switch S27. switch. Replace if no continuity when operating switch. SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...

  • Page 114: 17 Pressure Transducer Pt1 Inoperative

    Check operation. Replace if defective. Check Control Module display screen. Use Diagnostic Menu to see switch and sensor status. 6. External or internal fault detected by Control Correct trouble code as displayed. Replace module module CM1. if defective. 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...

  • Page 115: 18 Angle Transducers At1 And/Or At2 Inoperative

    3. Open or defective Deck Enable switch S12. #08D on switch Replace switch if no continuity when operating switch. 4. Loose or broken wire #08D from Deck Enable Check continuity. Replace if defective. switch S12 to Deck Ext/Ret switch S11. SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...
  • Page 116 Check Control Module display screen. Use Diagnostic Menu to see switch and sensor status. 13. External or internal fault detected by Control Module CM1. Correct trouble code as displayed. Replace module if defective. 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...

  • Page 117: Hydraulic System

    4. Defective or plugged Lift Orifices O2 or O3. Clean Orifices. Replace if defective. (if equipped) 5. Leaking or defective Lift cylinders C2 and/or C3. Check cylinders and/or Orifices. Replace if (if equipped) defective. SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...

  • Page 118: Platform Will Not Lower

    1. Brake valve 3H-17 is defective. Check valve. Replace if defective. 2. Defective or plugged Brake Orifice O6 Check valve. Replace if defective. (SJ3220/26) or Orifice O5 (SJ4720/26/32). 3. Leaking or defective Brake Cylinder. Check cylinder. Replace or repair if defective. 223198ABA...

  • Page 119: 10 Brake(S) Will Not Release (Wet Brakes)

    Retract valve 4H-27 is defective. 2. Platform cylinders C5 and/or C6 (if installed) seal Rebuild cylinder(s). Replace if damaged. leaking or is defective. 3. Mechanical binding in platform rails, rollers, Check for binding. Repair as needed. guides, etc. 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...

  • Page 120: Section 5 - Procedures

    5. Turn the main power disconnect switch to the “ ” off position. After completing any procedure which involves modifying, adjusting, or replacing any hydraulic or electrical components, perform all of the function tests given in your unit’s operation Manual. SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...

  • Page 121: Platform

    -40°C to 85°C WHITE/BLACK HANDLE COM (+24V) Storage Temperature -40°C to 85°C GRAY GROUND IP Rating IP 57 BLUE PROPORTIONAL OUTPUT *Load applied at dimensions shown on the diagram YELLOW POWER (+5V) Joystick Output Graph SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...

  • Page 122: Gate Spring Hinge Adjustment

    5.2-2 Gate Spring Hinge Adjustment 5.2-3 Railing Maintenance and Repair 1. The tension of the spring hinges should be Skyjack MEWPs have been designed to make sure such that when the gate is opened halfway and compliance with the relevant design standards released, it will close fully and latch.

  • Page 123: Base

    9. Release lift function and tighten the locknut. 10. Reconnect #14 wire onto the lift coil 3H-14. 11. Remove the gauge from system pressure test port. 3H-14 #14 Wire Test Port SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...

  • Page 124: Pothole Compression Rod Replacement

    Replacement shown below and try to drive: It is important that new compression rods are adjusted SJ3220/26 - 2 m to 2.5 m (6' 10" to 8' 2") ▪ to the correct height for the pothole protection system SJ4720/26/32 - 2 m to 3.2 m (6' 10" to 10' 6") to work correctly.

  • Page 125: Pothole Limit Switches (Ls1 & Ls2) Replacement And Adjustment

    2. Plug the spade connectors into the same wire numbers. The #72 wires from each limit switch connects to each other. The #71 and #901 wires from the limit switches connect to the respective wires on the main harness. SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...
  • Page 126 ON when the pothole protection is on a block ▪ OFF when the pothole protection is fully ▪ lowered. 3. Attempt to drive forward or reverse. The MEWP should not move forward or backward when pothole protection is on a block. 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...

  • Page 127: Pothole Bar Replacement/Removal For Servicing

    Keep the pins and hardware. hole lock 3. Make sure the bushing is secured. Do an inspection on the bushing for excessive wear. Replace it if necessary. Optional Push up and manual lock back to remove SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...
  • Page 128 8. Re-install the pins and hardware to the pivot points on the pothole assembly and base. Test the pothole bars 1. Raise and lower the scissor stack a few times to make sure the pothole bars deploy correctly. 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...

  • Page 129: Tightening And Torque Recommendations For Hydraulic Couplings And Hoses

    O-ring when installed. 6. Install any 45° and 90° hydraulic hose ends first, then align direction and tighten. Adjust the swivel nut on the straight hose end before tightening to create the desired flow. SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...
  • Page 130 FFWR chart above). Size FFWR 37° Tube Dash Frac. (in.) Swivel Nut 7. Apply a drop of torque seal to the connection. 1/4" 5/16" 3/8" 1/2" 1.25 5/8" 3/4" 1.25 1" 1 1/4" 1 1/2 2" 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...

  • Page 131: Integrated Hub Wheel Removal And Installation

    NOTE The inner bearing has a larger diameter than the outer bearing . When installing, make sure the bearings are inserted tapered-end first. SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...
  • Page 132 4. Use two 3/8”-24 bolts with a hub puller to remove the wheel. 5. Use a hub puller to remove and discard the hub/ integrated hub wheel from the wheel motor or brake. 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...
  • Page 133 . 7. For machines with pin brakes, use a wrench to re-engage the pin brakes on both sides. Do not lower the machine while the pin brakes are disengaged. SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...
  • Page 134 6. Bend the ends of the cotter pin to secure the castle nut. 7. To limit rust bleed, it is recommended that a few drops of grease be applied to the two small tapped holes on the rear wheels. 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...

  • Page 135: Battery Maintenance

    Use the original or equivalent to the original parts output yellow active. and components for the MEWP . Charge Current profile/ algorithm N/A. or fault/ error display error code Select Current charge charging N/A. profile algorithm SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...
  • Page 136 U.S. Battery - US 250 XC/XC2 Flooded-lead, 6V, 255 Ah Trojan - T105 ELPT Flooded, 6V, 225 Ah 150 - 250 Ah 6V, 8V, 12V flooded #3 (P-0-0-3) *The batteries used for these charger profiles are connected in a series-parallel circuit. 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...
  • Page 137 The charger has been unable to calibrate the F-0-0-4 current offset. The voltage drop across the DC relay is too high F-0-0-5 while the relay is closed. Large difference between internal DC-DC and F-0-0-6 battery sense currents. SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...
  • Page 138 Extra loads. Turn off other devices running on the battery ▪ This error automatically clears once the charger is reset ▪ by cycling DC or by loss of AC for over 10 minutes. ▪ 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...
  • Page 139 New batteries, if charged when already full, may also cause this error. Disconnect and reconnect the batteries a few times. Check the battery voltage and cable connections. ▪ This error automatically clears once the condition has ▪ been corrected. SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...
  • Page 140 Internal charger error. Disconnect AC and the battery for ▪ a minimum of 30 seconds and retry. has triggered an alarm If the problem persists, contact Delta-Q Technologies. ▪ This error automatically clears once the condition has ▪ been corrected. 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...
  • Page 141 This error automatically clears once the condition has ▪ been corrected A battery or some other source has been connected to ▪ E-0-4-7 Platform overvoltage alarm the charger that exceeds the hardware’s design limits. SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...

  • Page 142: Skycoded Module

    Factory calibrations for height, load, and level are completed at Skyjack and only needs to be adjusted if a major component (i.e. the control module, etc.) has been replaced.
  • Page 143 (KC built machines only) 24V Input from Anti-Overrising Limit switches N.O. contacts 51 Black (KC built machines only) 24V Input from Anti-Overrising Limit switches N.C. contacts 08A Black 24V Input from S7-6 Joystick PCB P4 Enable signal SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...
  • Page 144 24V B+ supply to Display Module Rx Red Rx Receive signal to Display Module Tx Green Tx Transmit signal to Display Module 902 White 0V GND Reference to Display Module, PT1 & AT1 sensors 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...

  • Page 145: Calibration And Diagnostic Tool Key Functions

    Select this menu to see Select menus and setting to the serial number of the SERIAL NUMBER be adjusted Control Module (CM1). Access level 2 set-ups and UP/DOWN Buttons adjustments accessible Adjust setting values menu. SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...
  • Page 146 P2-4 P1-5 JOYSTICK INPUTS TILTED P2-5 POSITRAC P1-9 CALDATE HEIGHT P2-6 EMSp P2-9 LOAD SOFTWARE JOYSTICK ANALOG P5-1 OVERLOADED POWERED P5-12 LAST MOVED BATTERY FEEDBACK ELEVATED ENTER WORKTIME JOYSTICK AORcase OUTPUTS P5-1 TELElock P5-x 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...
  • Page 147 Skycoded Controls - ACCESS LEVEL/SYSTEM OVERRIDE/RUN SYSTEM TEST SYSTEM ACCESS LEVEL DIAGNOSTICS OVERRIDE ENTER ACCESS CODE xxxx SYSTEM RUN SYSTEM ACCESS LEVEL OVERRIDE TEST SYSTEM RUN SYSTEM ADJUSTMENTS OVERRIDE TEST ENTER TEST VALVES ENTER TEST LAMPS ENTER TEST INPUTS SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...
  • Page 148 OUT MAX TORQUE ALARMS DOWN DECEL SCALE ACCEL IN MAX HEIGHTS DOWN ACCEL MAX DECEL DECEL MAX HEIGHT TIME ARMGUARD ENTER CUSHION @ CUSHION ENTER @HEIGHT HEIGHT DOWN CUSHION MAXarmguard DOWM MAX VALVE CYLINDER 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...
  • Page 149 ENTER DELAYclear ALARM@ LIFT HEIGHTS ELEVATION@ ENTER TILT#2 ENTER TILT DYNAMIC@ MAX DRIVE DRIVE @HEIGHT SAFE@ MAX LIFT DRIVE/ELEVATED Xtrip2 @HEIGHT ARMGUARD Ytrip2 LIFT SAFEDOWN OVERLOAD STEER DELAYtrip SAFE-DOWN DELAYclear DECK POTHOLE TILT@2 CUSHION SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...
  • Page 150 MIN LIFT RESET TRIGGERonly INTERLOCKS ENTER OVERRIDE SAMPLES@ FAULTY LOAD TRIGGERwait C LIMIT TILT CORRECTION DYNAMIC FUNCTIONhold SCALE SLOWDOWN TELEMATICS FINETUNEup RED KNOB ANTI IDLE TIMEOUT FINETUNEdown OVERRISE OL COUNT OL SWITCH ENTER HYST 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...
  • Page 151 Skycoded Controls - CALIBRATIONS/SERIAL NUMBER Level 1 Accessible Only SERIAL SETUPS CALIBRATIONS NUMBER ENTER Temp Current Tilt TiltXOff TiltYOff UserXOff UserYOff Height1Min Height1Max Height2Min Height2Max ElevUp ElevDown OVERLOAD CAL SERIAL CALIBRATIONS HELP NUMBER ENTER yy/mm/nnnnn SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...
  • Page 152 LEFT Displays ON when steer left button pressed RIGHT Displays ON when steer right button pressed POSITRAC Displays ON when traction switch is pressed EMSp Displays ON, indicating Platform Emerency Stop circuit is active 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...
  • Page 153 Displays voltage measurement of AT1 Angle Transducer analog input P2-2 signal P2-4 Displays voltage measurement of PT1 Pressure Transducer analog P2-4 signal P2-5 Displays voltage measurement of AT Angle Transducer analog input P2-5 signal SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...
  • Page 154 Displays software version of Control Module CM1 POWERED Displays total time that Control Module CM1 has been powered MAX.BATTERY Displays maximum recorded battery supply voltage WORKTIME Displays total time that the pump has been powered 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...
  • Page 155 Determines the slowest lifting speed (when the joystick is at 0% demand) UP MAX Determines the fastest lifting speed (when the joystick is at 100% demand) Items highlighted in grey requires access level 2. SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...
  • Page 156 Determines the (fixed) deck in (retract) speed in Base mode ACCEL Determines the rate of increase of lift/lower/deck speeds in Base mode DECEL Determines the rate of decrease of lift/lower/deck speeds in Base mode 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...
  • Page 157 Determines the height at which the Pothole bar is engaged. TILT#2 Determines the height above which reduced overload trip points apply. CUSHION Determines the height at which the cushioning effect is applied. Items highlighted in grey requires access level 2. SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...
  • Page 158 Determines whether or not to trigger an interlock when a function is selected without the trigger being closed TRIGGERwait and after what delay to do it in. Items highlighted in grey requires access level 2. 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...
  • Page 159 This sub-menu provides access to the load calibration data created during the “CALIBRATE LOAD” loaded & OVERLOAD CALS empty procedure. SERIAL NUMBER (Access level 2 required) yy/mm/nnnnn Displays the Control Module CM1 serial number Items highlighted in grey requires access level 2. SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...

  • Page 160: Diagnostics, Help Messages And Flash Codes

    – press <ENTER> from the display to see INTERLOCKED the precise cause of the interlock (listed below) – press <ESC> from that display to return to the MODE display: 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...
  • Page 161 If overload functions are not active, but height-based decisions are active (ADJUSTMENTS/ HEIGHT values set to between 1% and 100%) then the height sensors must be calibrated Calibration procedures are accessible from the SETUPS/HEIGHT SETUPS and SETUPS/LOAD SETUPS menus" SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...
  • Page 162 This indicates that “factory override” is active – this special controller mode is intended for use during LED flashing machine manufacture only (see OVERRIDE procedure) fast and IMPORTANT: Never use a machine that is still in “factory override” – all safety and shutdown features are continuously disabled! 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...
  • Page 163 The internal “5V slave” supply is out of range; if the fault remains, the controller INTERNAL 5V! may have to be replaced. FAULT: BAD The internal “slave” is not operating correctly; if the fault remains, the controller INTERNAL SLAVE! may have to be replaced. SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...
  • Page 164 (see ADJUSTMENTS/ LIFT/ ARMGUARD), to allow a safety check that - ARMGUARD no-one is close to the machine. The operator must release and then re-select DOWN to continue lowering (after the delay timeout). 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...
  • Page 165 Control Module CM1 is in standby mode after no functions have been requested IDLE TIMEOUT in some time. LIFT LOCKED - KC Only - check anti-overrise limit switches to P3-10 and P3-11. OVERRISE LIFTING! LOGGED HELP SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...
  • Page 166 If you select a function during this time, it may be locked out until you release then re-select it. STEERING! The machine is tilted beyond the limits set by ADJUSTMENTS/TILT/Xtrip and VEHICLE TILTED Ytrip; some functions may be prevented 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...

  • Page 167: Override Mode Procedure

    A. “1=LEAD CELL ” if standard lead cell type of batteries are installed. B. “2=AGM” if AGM type of batteries are installed. 12. Press ESC button to exit the “MACHINE DEFAULTS” option. 13. Cycle power to the Control Module CM1 to finish. SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...

  • Page 168: Access Levels Procedure

    13. Cycle power to the Control Module CM1 to NOTE finish. Cycling power to the control module will restore you to “ACCESS LEVEL ” 3 . 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...

  • Page 169: Calibrate Load Procedure

    “LOAD SETUPS” and platform reaches full height. press ENTER to select. 12. When the platform reaches full height (and height 4. Press ENTER to run the “CALIBRATE LOAD” 100% is displayed), release the UP switch. option. SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...
  • Page 170 IMPORTANT Press the ESC button a few times to exit the “CALIBRATE LOAD” option and return to the home screen (it is not possible to use the machine if you do not do this). 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...

  • Page 171: Language Setting Procedure

    3. Press to get to “LANGUAGE” and press ENTER to select. 4. Press to change the language and press ENTER to select. 5. Press ESC a few times to go back to the main menu. SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...
  • Page 172 5% and 20% height). F17:HIGH ELEV. The point at which the Angle Transducers are open while the platform was lifting, is too high (it OPEN should open between 5% and 20% height). 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...
  • Page 173 1s for fast lifting machines, and 3s for slow lifting machines. F52:NOT Something happened to cause calibration to fail – it is recommended to check all sensor CALIBRATED! wiring for loose connections, then repeat calibration. SJ3220, SJ3226, SJ4720, SJ4726, SJ4732 223198ABA...
  • Page 174 During calibration, the Control Module CM1 sometimes delays while waiting for sensor values to PLEASE WAIT stabilize – this display indicates why nothing appears to be happening. 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...
  • Page 175 Notes 223198ABA SJ3220, SJ3226, SJ4720, SJ4726, SJ4732...
  • Page 177 www.skyjack.com...

This manual is also suitable for:

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