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Skyjack SJ4740 DC Electric Scissors Service Manual 212510AAA – PDF DOWNLOAD
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Skyjack SJ4740 DC Electric Scissors Service Manual 212510AAA – PDF DOWNLOAD
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Description
Skyjack SJ4740 DC Electric Scissors Service Manual 212510AAA – PDF DOWNLOAD
FILE DETAILS:
Skyjack SJ4740 DC Electric Scissors Service Manual 212510AAA – PDF DOWNLOAD
Language : English
Pages : 146
Downloadable : Yes
File Type : PDF
DESCRIPTION:
Skyjack SJ4740 DC Electric Scissors Service Manual 212510AAA – PDF DOWNLOAD
SJ4740: A/B103000001 to A/B103999999
Scheduled Maintenance:
1.1 Read and Heed:
Skyjack is continuously improving and expanding product features on its equipment; therefore,
specifications and dimensions are subject to change without notice.
1.1 Read and Heed:
Skyjack is continuously improving and expanding product features on its equipment; therefore,
specifications and dimensions are subject to change without notice.
1.1-1 Mobile Elevating Work Platform (MEWP) definition:
A mobile machine intended for moving persons, tools, and material to working positions, consisting
of a work platform with controls, an extending structure, and a chassis.
A mobile machine intended for moving persons, tools, and material to working positions, consisting
of a work platform with controls, an extending structure, and a chassis.
1.1-2 Purpose of Equipment
The Skyjack SJ DC Electric Scissor lifts are designed to move personnel, tools, and materials to
working positions.
The Skyjack SJ DC Electric Scissor lifts are designed to move personnel, tools, and materials to
working positions.
1.1-3 Use of Equipment:
The MEWP is a highly maneuverable, mobile work station. Work platform elevation and elevated
driving must only be done on a firm, level surface.
The MEWP is a highly maneuverable, mobile work station. Work platform elevation and elevated
driving must only be done on a firm, level surface.
1.1-4 Service Policy and Warranty :
Skyjack warrants each new product to be free of defective parts and workmanship for the first 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. Contact the Skyjack Service Department for warranty
statement extensions or exclusions.
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. Contact the Skyjack Service Department for warranty
statement extensions or exclusions.
1.1-5 Ownership of MEWP:
Notify Skyjack of MEWP ownership. If you sell or transfer the ownership of a MEWP, promptly notify
Skyjack of the new owner’s contact information.
Skyjack needs this information to inform the owner of any updates or additional activities that are
necessary to keep the machine in proper working condition.
1.1-6 Optional equipment:
Notify Skyjack of MEWP ownership. If you sell or transfer the ownership of a MEWP, promptly notify
Skyjack of the new owner’s contact information.
Skyjack needs this information to inform the owner of any updates or additional activities that are
necessary to keep the machine in proper working condition.
1.1-6 Optional equipment:
- This MEWP is designed to accept a variety of optional accessories. Refer to operation manual for a list of the optional accessories. Operating instructions for these options are in the operation manual.
- For components or systems that are not standard, speak to the Skyjack Service Department. Give the
model and serial number for each applicable MEWP.
TABLE OF CONTENTS:
Skyjack SJ4740 DC Electric Scissors Service Manual 212510AAA – PDF DOWNLOAD
Section 1 – Scheduled Maintenance......................................................... 9 1.1 Read and Heed.................................................................... 9 1.1-1 Mobile Elevating Work Platform (MEWP) definition............................ 9 1.1-2 Purpose of Equipment........................................................ 9 1.1-3 Use of Equipment............................................................ 9 1.1-4 Service Policy and Warranty................................................. 9 1.1-5 Ownership of MEWP........................................................... 9 1.1-6 Optional equipment.......................................................... 9 1.2 Maintenance and Inspection Schedule.............................................. 10 1.2-1 Owner’s Annual Inspection Record............................................ 10 1.2-2 Replacement Parts........................................................... 10 1.2-3 Maintenance and Service Safety Tips......................................... 10 1.2-4 Hydraulic System & Component Maintenance and Repair......................... 11 1.2-5 Maintenance Hints........................................................... 12 1.2-6 About this Section.......................................................... 13 1.2-7 Maintenance Instructions.................................................... 13 1.3 Owner’s Annual Inspection Record................................................. 14 1.4 Frequent/Periodic/Annual/Pre-Delivery Inspection Checklist....................... 15 1.5 General Inspections.............................................................. 16 1.5-1 Service Bulletins (B) ...................................................... 16 1.5-2 Annual Inspections (B)...................................................... 16 1.5-3 Labels (B).................................................................. 16 1.5-4 Pothole Protection Limit Switches(B)........................................ 16 1.6 Base Inspection.................................................................. 17 1.7 Scissors Inspection.............................................................. 21 1.8 Platform Inspection ............................................................. 25 1.9 Function Tests................................................................... 26 Section 2 – Maintenance Tables and Diagrams............................................... 27 2.1 Standard Hose Numbering System................................................... 27 2.2 Torque Specifications for Fasteners (US)......................................... 29 2.3 Torque Specifications for Fasteners (Metric)..................................... 30 2.4 Torque Specifications for Hydraulic Couplings & Hoses............................ 31 2.5 Specifications & Features........................................................ 32 2.6 Maximum Platform Capacities (Evenly Distributed)................................. 33 2.7 Floor Loading Pressure........................................................... 34 2.8 Torque Specifications............................................................ 35 Section 3 – System Component Identification and Schematics................................ 37 3.1 Electrical Symbol Chart.......................................................... 38 3.2 Hydraulic Symbol Chart........................................................... 39 3.3 Wire Number and Color Code....................................................... 40 3.4 Hydraulic Parts List............................................................. 41 3.5 Electrical Parts List............................................................ 43 3.6 Drive Manifold - MB5............................................................. 45 3.7 Brake Manifold - MB2............................................................. 45 3.8 Dual Lift Cylinder Manifold - MB3 & MB4.......................................... 46 3.9 Platform Control Box Wiring...................................................... 47 3.10 Platform Control Box Wiring - SGLE.............................................. 48 3.11 Base to Platform Control Cable.................................................. 49 3.12 Base Control Wiring............................................................. 50 3.13 Emergency Lowering Switch Wiring................................................ 51 3.14 Limit Switch Wiring - Pothole Protection........................................ 52 3.15 Limit Switch Wiring - Anti-Overrising Posts (KC Only)........................... 53 3.16 Anti-Overrising Harnesses (KC Only)............................................. 54 3.17 Electrical Harnesses............................................................ 55 3.18 Outdoor Switch Wiring and Harness (ANSI/CSA Only)............................... 56 3.19 Battery Cable Connections....................................................... 57 3.20 Main Manifold................................................................... 58 3.21 Hydraulic Schematics - ANSI/CSA, AS, KC......................................... 59 3.22 Hydraulic Schematics - CE....................................................... 60 3.23 Telematics Harness.............................................................. 61 3.24 Electrical Schematic - All Option - ANSI/CSA.................................... 62 3.25 Electrical Schematics - All Options - CE........................................ 63 3.26 Electrical Schematic - All Option - AS.......................................... 64 3.27 Electrical Schematics - All Options - KC........................................ 65 Section 4 – Troubleshooting Information................................................... 69 4.1 Introduction..................................................................... 69 4.2 Electrical System................................................................ 70 4.2-1 All Controls Inoperative.................................................... 70 4.2-2 All Controls Except for Down Function Inoperative........................... 71 4.2-3 All Controls Inoperative From Base Control Console.......................... 72 4.2-4 No Up Function from Base Control Console.................................... 74 4.2-5 No Down Function from Base Control Console.................................. 75 4.2-6 No Emergency Down Function from Base Control Console*....................... 76 4.2-7 All Controls Inoperative From Platform Control Console...................... 77 4.2-8 No Up Function from Platform Controls (ANSI/CSA, CE, and AS)................ 79 4.2-9 No Up Function from Platform Controls (KC).................................. 80 4.2-10 No Down Function from Platform Controls.................................... 82 4.2-11 Right Steer Inoperative ................................................... 83 4.2-12 Left Steer Inoperative .................................................... 84 4.2-13 Forward Drive Function Inoperative......................................... 84 4.2-14 Reverse Drive Function Inoperative......................................... 86 4.2-15 No Drive or Steer when Platform Elevated................................... 87 4.2-16 High/Low Torque Inoperative................................................ 88 4.2-17 Pressure Transducer PT1 Inoperative........................................ 88 4.2-18 Angle Transducers AT1 and/or AT2 Inoperative............................... 89 4.3 Hydraulic System................................................................. 90 4.3-1 All Functions Inoperative................................................... 90 4.3-2 All System Sluggish......................................................... 90 4.3-3 Platform Drifts Down........................................................ 90 4.3-4 Platform Lifts Slowly....................................................... 90 4.3-5 Platform Does Not Lift...................................................... 90 4.3-6 Platform Will Not Lower..................................................... 91 4.3-7 Platform Drives Slow........................................................ 91 4.3-8 Platform Will Not Drive in Forward or Reverse............................... 91 4.3-9 Brake(s) will not Release................................................... 91 4.3-10 MEWP Will Not Hold on a Grade.............................................. 92 4.3-11 Platform does not Steer.................................................... 92 4.3-12 High/Low Torque Inoperative................................................ 92 Section 5 – Procedures.................................................................... 93 5.1 General.......................................................................... 93 5.1-1 Safety and Workmanship...................................................... 93 5.2 Platform......................................................................... 94 5.2-1 Single Axis Joystick........................................................ 94 5.2-2 Gate Spring Hinge Adjustment................................................ 95 5.2-3 Railing Maintenance and Repair.............................................. 95 5.3 Base............................................................................. 96 5.3-1 System Relief Pressure Adjustment........................................... 96 5.3-2 Pothole Compression Rod Replacement......................................... 97 5.3-3 Pothole Limit Switches (LS1 & LS2) Replacement and Adjustment .............. 98 5.3-4 Pothole Bar Replacement/Removal for Servicing...............................100 5.3-5 Tightening and Torque Recommendations for Hydraulic Couplings and Hoses ....102 5.3-6 Integrated Hub Wheel Removal and Installation...............................104 5.3-7 Battery Maintenance ........................................................105 5.3-8 Charger Maintenance.........................................................105 5.4 Skycoded Module..................................................................112 5.4-1 Skycoded Control Module (CM1) ..............................................112 5.4-2 Calibration and Diagnostic Tool Key Functions...............................115 5.4-3 Diagnostics, Help Messages and Flash Codes..................................130 5.4-4 Override Mode Procedure.....................................................137 5.4-5 Initial Set-up and Change Defaults Procedure................................137 5.4-6 Access Levels Procedure.....................................................138 5.4-7 Calibrate Level Procedure...................................................138 5.4-8 Calibrate Load Procedure....................................................139 5.4-9 Language Setting Procedure..................................................141
IMAGES PREVIEW OF THE MANUAL:
Need help? Contact: [email protected]
PLEASE NOTE:
- This is the SAME exact manual used by your dealers to fix your vehicle.
- The same can be yours in the next 2-3 mins as you will be directed to the download page immediately after paying for the manual.
- Any queries / doubts regarding your purchase, please feel free to contact [email protected]
S.V
