JLG 15-20MSP Service Manual

5 (1)
Service & Maintenance Manual
Model(s)
15/20MVL &
15/20MSP
Series
P/N - 3121231
December 20, 2013
NOTES:

MAINTENANCE SAFETY PRECAUTIONS

A. GENERAL

This section contains the general safety precautions which must be observed during maintenance of the aerial platform. It is of utmost importance that maintenance per­sonnel pay strict attention to these warnings and precau­tions to avoid possible injury to themselves or others or damage to the equipment. A maintenance program must be established by a qualified person and must be followed to ensure that the machine is safe to operate.
MODIFICATION OF THE MACHINE WITHOUT CERTIFICATION BY A RESPONSIBLE AUTHORITY THAT THE MACHINE IS AT LEAST AS SAFE AS ORIGINALLY MANUFACTURED IS A SAFETY VIOLA­TION.
The specific precautions to be observed during machine maintenance are inserted at the appropriate point in the manual. These precautions are, for the most part, those that apply when servicing hydraulic and larger machine component parts.
Your safety, and that of others, is the first consideration when engaging in the maintenance of equipment. Always be conscious of component weight and never attempt to move heavy parts without the aid of a mechanical device. Do not allow heavy objects to rest in an unstable position. When raising a portion of the equipment, ensure that ade­quate support is provided.
SINCE THE MACHINE MANUFACTURER HAS NO DIRECT CON­TROL OVER THE FIELD INSPECTION AND MAINTENANCE, SAFETY IN THIS AREA IS THE RESPONSIBILITY OF THE OWNER/ OPERATOR.

B. HYDRAULIC SYSTEM SAFETY

1. It should be particularly noted that the machines hydraulic systems operate at extremely high and potentially dangerous pressures. Every effort should be made to relieve any system pressure prior to dis­connecting or removing any portion of the system.

C. MAINTENANCE

FAILURE TO COMPLY WITH SAFETY PRECAUTIONS LISTED IN THIS SECTION COULD RESULT IN MACHINE DAMAGE, PERSON­NEL INJURY OR DEATH AND IS A SAFETY VIOLATION.
• REMOVE ALL RINGS, WATCHES, AND JEWELRY WHEN PERFORMING ANY MAINTENANCE.
• DO NOT WEAR LONG HAIR UNRESTRAINED, OR LOOSE FITTING CLOTHING AND NECKTIES WHICH ARE APT TO BECOME CAUGHT ON OR ENTANGLED IN EQUIPMENT.
• OBSERVE AND OBEY ALL DANGER, WARNING, CAU­TION AND OTHER INSTRUCTIONS ON MACHINE AND IN SERVICE MANUAL.
• KEEP STANDING SURFACES AND HAND HOLDS FREE OF OIL, GREASE, WATER, ETC.
• NEVER WORK UNDER AN ELEVATED PLATFORM UNTIL PLATFORM HAS BEEN SAFELY RESTRAINED FROM ANY MOVEMENT BY BLOCKING OR OVER­HEAD SLING.
• BEFORE MAKING ADJUSTMENTS, LUBRICATING OR PERFORMING ANY OTHER MAINTENANCE, SHUT OFF ALL POWER CONTROLS.
•BATTERY SHOULD ALWAYS BE DISCONNECTED DURING REPLACEMENT OF ELECTRICAL COMPO­NENTS.
• KEEP ALL SUPPORT EQUIPMENT AND ATTACH­MENTS STOWED IN THEIR PROPER PLACE.
• USE ONLY APPROVED, NONFLAMMABLE CLEANING SOLVENTS.
• ENSURE REPLACEMENT PARTS OR COMPONENTS ARE IDENTICAL OR EQUIVALENT TO ORIGINAL PARTS OR COMPONENTS.
2. Relieve system pressure by lowering the platform completely to direct any line pressure back into the return line to the reservoir. Pressure feed lines to system components can then be disconnected with minimal fluid loss.
3121231 – JLG Lift – a
INTRODUCTION - REVISION LOG

REVISION LOG

Original Issue of Manual . . . . . . . . . . . . . . . . . . . . . January 5, 2006
Manual Revised . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . April 3, 2006
Manual Revised . . . . . . . . . . . . . . . . . . . . . . . . . . . . October 4, 2006
Manual Revised . . . . . . . . . . . . . . . . . . . . . . . . . . . . October 8, 2007
Manual Revised . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . April 17, 2008
Manual Revised . . . . . . . . . . . . . . . . . . . . . . . . . . . . October 7, 2008
Manual Revised . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . May 15, 2009
Manual Revised . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .July 19, 2010
Manual Revised . . . . . . . . . . . . . . . . . . . . . . . . . December 21, 2010
Manual Revised . . . . . . . . . . . . . . . . . . . . . . . . . . .February 23, 2012
Manual Revised . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . April 25, 2013
Manual Revised . . . . . . . . . . . . . . . . . . . . . . . . . . December 5, 2013
Manual Revised . . . . . . . . . . . . . . . . . . . . . . . . . December 20, 2013
b – JLG Lift – 3121231

TABLE OF CONTENTS

TABLE OF CONTENTS
SUBJECT - SECTION, PARAGRAPH PAGE NO.
MAINTENANCE SAFETY PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A
A GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A
B HYDRAULIC SYSTEM SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A
C MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A
REVISION LOG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B
SECTION 1 - MACHINE SPECIFICATIONS
1.1 CAPACITIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
System Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
Hydraulic System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
Drive Motor GearBox (gear oil) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
1.2 COMPONENT DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Hydraulic Pump/Pump Motor Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Rear Wheel Drive Motors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
Batteries/Battery Charger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
1.3 PERFORMANCE DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
Platform Capacities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
Platform Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Machine Height (platform stowed) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
Machine Ground Clearance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Base Footprint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
1.4 LUBRICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-4
Hydraulic Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Lubrication Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-4
1.5 CYLINDER SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
1.6 SERIAL NUMBER LOCATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-4
1.7 TORQUE REQUIREMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
SECTION 2 - GENERAL
2.1 MACHINE PREPARATION, INSPECTION, AND MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Preparation, Inspection, and Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1
Pre-Start Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1
Pre-Delivery Inspection and Frequent Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Annual Machine Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1
Preventative Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1
2.2 PREVENTIVE MAINTENANCE AND INSPECTION SCHEDULE . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2
Inspection and Maintenance Codes: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Footnotes: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
2.3 SERVICING AND MAINTENANCE GUIDELINES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Safety and Workmanship . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Cleanliness. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Components Removal and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5
Component Disassembly and Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Pressure-Fit Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Bearings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Gaskets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5
Bolt Usage and Torque Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5
Hydraulic Lines and Electrical Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
3121231 – JLG Lift – i
TABLE OF CONTENTS
Hydraulic System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-6
Lubrication and Servicing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-6
Batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Mast Chain Inspection Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
2.4 LUBRICATION INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
Hydraulic System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-8
Hydraulic Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
Changing Hydraulic Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-8
Lubrication Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-8
SECTION 3 - BASE COMPONENTS
3.1 BASE ASSEMBLY COMPONENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
3.2 BASE FRAME COVERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Drive Motor Cover - Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2
Battery Charger Cover - Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2
3.3 DRIVE/ELEVATION CUT-OUT SWITCH INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
3.4 DRIVE AND CASTER WHEELS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Tire Wear and Damage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-3
Wheel and Tire Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-3
Wheel Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-3
Caster Wheels - Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-3
3.5 WHEEL DRIVE ASSEMBLY - SERVICING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Roll And Leak Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4
Oil Type & Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Drive Motor Brush Wear - Warning Indication. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4
Wheel Drive Assembly - Removal From Machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
Wheel Drive Disassembly - Main Components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
Replacing Drive Motor Brushes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-7
Gear Box Main Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
Input Carrier Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-10
Hub - Disassembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11
Spindle Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-12
Spindle Sub-Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-13
Hub Sub-Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-14
Input Carrier Sub-Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15
Main Gear Box Sub-Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16
Motor, Brake and Gear Box Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17
3.6 POT HOLE PROTECTION SYSTEM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18
3.7 BATTERY CHARGER - SERVICE PROCEDURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-20
Battery Charger General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-20
Battery Charger Maintenance Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-20
Battery Charge LED Indicator on Platform Control Console . . . . . . . . . . . . . . . . . . . . . . . .3-20
Battery Low Voltage Warning Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-20
Battery Charging Status Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-21
Battery Charger Check/Change Charging Algorithm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-22
Battery Charger Removal/Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-22
SECTION 4 - CONTROL COMPONENTS
4.1 CONTROL COMPONENTS OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1
4.2 CONTROLS COVER INSTALLATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-2
Battery Cover Doors (Optional Hinged) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-2
Center, Left and Right Lower Covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-2
4.3 CONTROL COMPONENTS - INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-3
Ground Control Module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-3
ii – JLG Lift – 3121231
TABLE OF CONTENTS
Traction Control Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-3
Platform Control Console Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-4
Horn Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
Alarm Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
4.4 BATTERIES - SERVICE PROCEDURES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Battery Condition Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-5
Battery Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-5
Battery Disconnect (Option) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-5
Battery - Installation - (2-12V Batteries) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Battery Installation - (4-6V Batteries) (OPTION) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-7
4.5 GROUND CONTROL MODULE - SERVICE PROCEDURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-8
Cover Removal/Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-9
Power Selector/EStop Switch Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-10
4.6 GROUND CONTROL MODULE - PROGRAMMING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11
General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11
Programming Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-11
Activating Programming Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-11
Entering Password. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12
Programming Mode Selection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12
Selecting Programmable Item to Adjust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12
Adjusting Programmable Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-12
Service Programming Mode - (Level-2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13
Operator Programming Mode - (Level-3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14
4.7 PLATFORM CONTROL CONSOLE - SERVICE PROCEDURES . . . . . . . . . . . . . . . . . . . . . . . . . . 4-16
General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-16
Remove Platform Control Console . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-16
Display/Controller Module Electrical Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-17
Mounting Bracket - Install/Remove . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-17
Rear Cover - Install/Remove . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-17
Display/Controller Module - Install/Remove . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-18
Drive/Lift Mode Switch - Install/Remove . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-18
Horn Button Switch - Install/Remove. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-18
Key Switch - Install/Remove . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-18
E-Stop/ShutDown Switch - Install/Remove . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-19
Joystick Assembly - Install/Remove . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-19
4.8 PUMP-MOTOR ASSEMBLY - SERVICE PROCEDURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-20
Hydraulic Pressure settings and Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-20
Hydraulic Pressure Gauge Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-20
After Filter Pressure Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-21
Pump/Motor/Tank Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-21
General Installation and Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-22
Inline Hydraulic Filter Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-22
FENNER BRAND PUMP - Brush Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-22
Motor Cap/Motor Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-22
Motor Brush Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-23
Brush Housing Final Assembly Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-24
MONARCH BRAND PUMP - Brush Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-25
Motor Assembly - Remove/Install - Reference Marks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-25
Motor/Brush Cover - Remove/Install . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-25
Brush Carrier Assembly - Remove/Install . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-26
Brush Assembly - Remove/Install . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-26
Tank Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-27
Filter Screen Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-27
Pump Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-27
Pressure Adjust Valve Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-28
Pressure Check Valve Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-28
3121231 – JLG Lift – iii
TABLE OF CONTENTS
4.9 OBSTRUCTION SENSOR SYSTEM - SERVICE PROCEDURE (MSP - OPTION) . . . . . . . . . . . . .4-29
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-29
Transducer Sensor Check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-30
OSS Component Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-31
SECTION 5 - MAST COMPONENTS
5.1 MAST COMPONENTS OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
5.2 MAST CHAINS AND SEQUENCING CABLES ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-2
Mast Chain/Cable Adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Sequencing Cable Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
5.3 SEQUENCE CABLE REPLACEMENT KIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
Remove Old Cable. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
Replacement Cable Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-4
Clamp Installation (Drum/Socket Type) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-4
5.4 HYDRAULIC LINE - DISCONNECT - SPECIAL TOOL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7
Tool Use - In-Line Style Fittings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-7
Tool Use - Angled Style Fittings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-8
5.5 HYDRAULIC LIFT CYLINDER - REMOVAL, INSPECTION AND REBUILD . . . . . . . . . . . . . . . . . . .5-9
Lift Cylinder Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-9
Cylinder Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-12
Lift Cylinder Component Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-12
Cylinder Assembly (See Figure 5-4.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-13
Cylinder Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-13
5.6 MAST ASSEMBLY INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-15
Mast Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-15
Mast Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-15
5.7 MAST ASSEMBLY AND DISASSEMBLY PROCEDURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-16
Mast Disassembly Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-16
Mast Assembly - MVL/MSP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-19
5.8 MSP - STOCKPICKER PLATFORM - INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-27
5.9 MSP - STOCKPICKER PLATFORM - MID-GATE INTERLOCK INSTALLATION . . . . . . . . . . . . . . 5-28
5.10 MAST BEACON - INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-28
5.11 GATE ALARM - INSTALLATION - OPTION (FOR SIDE ENTRY W/FOLDING
MATERIAL TRAY PLATFORM ONLY). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-29
Switches and Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-29
5.12 MAST - 14 FT. HEIGHT LIMITING SWITCH -15MSP OPTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-30
SECTION 6 - TROUBLESHOOTING
6.1 GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1
6.2 TROUBLESHOOTING INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
6.3 HYDRAULIC CIRCUIT CHECKS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
6.4 ELECTRICAL CIRCUIT CHECKS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
6.5 MULTIMETER BASICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-2
Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
Backprobing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
Min/Max . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
Polarity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-2
Scale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-2
Continuity Measurement Over Long Distances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5
Requirements: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5
Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-5
iv – JLG Lift – 3121231
TABLE OF CONTENTS
6.6 ELECTRICAL SWITCH TESTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-6
Basic Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6
Limit Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6
Automatic Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-7
Switch Wiring - Low Side, High Side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7
6.7 GROUND CONTROL MODULE LCD DISPLAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-8
6.8 TROUBLESHOOTING TABLES INDEX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-14
Specifications For Various Components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-14
Special Pin Extractor Tools For Electrical Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-14
Fault Code Troubleshooting Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-14
Main Power Circuit Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-15
Mast Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-15
Hydraulic Leak Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-15
Base Frame Components Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-15
Drive System Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-15
6.9 SPECIFICATIONS FOR VARIOUS COMPONENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-16
6.10 SPECIAL PIN EXTRACTOR TOOLS FOR ELECTRICAL CONNECTORS . . . . . . . . . . . . . . . . . . .6-16
6.11 FAULT CODE TROUBLESHOOTING TABLES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-17
Machine in Drive Speed Cut-Back (Turtle) Mode All The Time . . . . . . . . . . . . . . . . . . . . . .6-17
Obstruction Sensor System - Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-18
Battery Voltage Low - Warning Level 3 - Three (3) LED/LCDs lit . . . . . . . . . . . . . . . . . . . . . 6-18
Code 02 - Left PHP Bar - UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-19
Code 03 - Right PHP Bar - UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-19
Code 04 - Tilt Condition. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-20
Code 05 - Reserved . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-20
Code 06 - Drive Motor Brush Wear Warning Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-21
Code 07 - Left Drive Motor - Disconnected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-21
Code 08 - Right Drive Motor - Disconnected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-22
Code 09 - Left Brake - Disconnected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-22
Code 10 - Right Brake - Disconnected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-22
Code 11 - Left Drive Motor - Short Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-23
Code 12 - Right Drive Motor - Short Circuit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-23
Code 13 - Traction Module - In Fold Back . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-23
Code 14 - Pump Motor - Disconnected. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-24
Code 15 - Lift Down Valve - Disconnected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-24
Code 16 - Lift Down Valve - Short Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-25
Code 17 - Ground Control Module - In Fold Back . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-25
Code 18 - Alarm - Short Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-25
Code 19 - Alarm - Disconnected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-26
Code 20 - Beacon - Short Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-26
Code 21 - Beacon - Disconnected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-27
Code 22 - Horn - Short Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-27
Code 23 - Horn - Disconnected. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-28
Code 24 - Auxiliary #1 Circuit - Short Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-28
Code 25 - Auxiliary #1 Circuit - Disconnected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-29
Code 26 - Auxiliary #2 - Short Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-29
Code 27 - Auxiliary #2 - Disconnected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-30
Code 28 - Reserved . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-30
Code 29 - Reserved . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-30
Code 30 - Traction Module - No Communication with Ground Control Module . . . . . . . . . 6-30
Code 31 - Platform Control Console - No Communication with Ground Control Module . .6-31
Code 32 - Pump Motor - Over Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-31
Code 33 - Both PHP Bars - UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-32
Code 34 - P2-Auxiliary #1 - Inhibit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-32
Code 35 - P2-Auxiliary #1 - Tie Down . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-32
Code 38 - Battery Voltage Low - Warning Level 2 - Two (2) LED/LCDs lit . . . . . . . . . . . . . . 6-33
3121231 – JLG Lift – v
TABLE OF CONTENTS
Code 39 - Battery Voltage Low - Warning Level 3 - One (1) LED/LCDs lit . . . . . . . . . . . . . .6-33
Code 40 - Obstruction Sensor System - No Communication with Ground Control Module 6-34
Codes 41 thru 46 - OSS - Sensor 1 through 6 - Fault Condition . . . . . . . . . . . . . . . . . . . . . 6-35
Codes (100 - 199) Ground Control Module - Fault Condition . . . . . . . . . . . . . . . . . . . . . . . 6-36
Codes (200 - 299) Platform Control Console - Fault Condition . . . . . . . . . . . . . . . . . . . . . . 6-37
Codes (300 - 399) Traction Control Module - Fault Condition . . . . . . . . . . . . . . . . . . . . . . . 6-38
6.12 MAIN POWER CIRCUIT TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-39
Machine Will Not Power Up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-39
6.13 MAST TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-40
Platform Will Not Lower Manually . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-40
Platform Lift Up And Down - Jerky . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-40
Mast Noisy When Lifting And Lowering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-41
Platform (Mast) Won’t Stay Elevated. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-42
Platform (Mast) Descends Too Slowly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-42
6.14 HYDRAULIC LEAK TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-43
Miscellaneous Hydraulic Leak Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-43
6.15 BASE FRAME COMPONENTS TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-44
Caster Wheels Not Operating Freely. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-44
Pot Hole Protection (PHP) Bars will not Lower . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-44
6.16 DRIVE SYSTEM TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-45
Won’t Climb Grade . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-45
Machine Drives in Opposite Direction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-45
Machine Won’t Drive Straight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-46
Noise From Drive Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-47
vi – JLG Lift – 3121231
TABLE OF CONTENTS
LIST OF FIGURES
FIGURE NO. TITLE PAGE NO.
1-1. Torque Chart (SAE Fasteners - Sheet 1 of 7) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-6
1-2. Torque Chart (SAE Fasteners - Sheet 2 of 7)) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-7
1-3. Torque Chart (SAE Fasteners - Sheet 3 of 7) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-8
1-4. Torque Chart (SAE Fasteners - Sheet 4 of 7) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-9
1-5. Torque Chart (METRIC Fasteners - Sheet 5 of 7)) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10
1-6. Torque Chart (METRIC Fasteners - Sheet 6 of 7). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-11
1-7. Torque Chart (METRIC Fasteners - Sheet 7 of 7). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-12
3-1. Base Components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
3-2. Wheel Lug Nut Tightening Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-3
4-1. Control Components Location - MVL/MSP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1
4-2. Component Electrical Connections. (2-12V Batteries shown) . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-6
4-3. Battery Cable to Battery Terminal Connections (4-6V). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-7
4-4. Ground Control Module Components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-8
4-5. Platform Control Console Components.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-16
4-6. Hydraulic Pressure Adjustment Screw. (Machine Rear Covers Removed) . . . . . . . . . . . . . . . . . .4-20
4-7. Typical Hydraulic Pressure Gauge Installation (Hydraulic Filter Removed). . . . . . . . . . . . . . . . . .4-20
4-8. Typical Hydraulic Pressure Gauge Installation (After Hydraulic Filter). . . . . . . . . . . . . . . . . . . . . .4-21
4-9. Obstruction Sensor System Components (Platform Cutaway) . . . . . . . . . . . . . . . . . . . . . . . . . . .4-29
5-1. Mast Components. (MVL/MSP). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1
5-2. MVL/MSP - Mast Chain and Sequence Cable Adjustment Components. . . . . . . . . . . . . . . . . . . . 5-3
5-3. Machine Positioned for Cylinder Removal.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-9
5-4. Lift Cylinder Component Cross-Section (MVL/MSP). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-13
5-5. Mast Section - Assembly Reference. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-16
5-6. Mast Chain Routing Diagram. - MVL/MSP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-18
5-7. Mast Bottom End - Slide Pad Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-19
5-8. MSP - StockPicker Platform Installation.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-27
6-1. Voltage Measurement (DC). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
6-2. Resistance Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-3
6-3. Continuity Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-4
6-4. Current Measurement (DC). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-4
6-5. Component Electrical Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-9
6-6. Overview of Electrical System Components. (MVL/MSP) (Sheet 1 of 2) . . . . . . . . . . . . . . . . . . . .6-48
6-7. Electrical Diagram. (MVL/MSP) (Sheet 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-50
6-8. Hydraulic Diagram. (MVL/MSP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-52
3121231 – JLG Lift – vii
TABLE OF CONTENTS
LIST OF TABLES
TABLE NO. TITLE PAGE NO.
1-1 General Machine Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1
1-2. 15MVL/MSP - Machine Maximum Wheel Loads (Lb.) and (PSI) - Per Wheel. . . . . . . . . . . . . . . . . 1-3
1-3. 20MVL/MSP - Machine Maximum Wheel Loads (Lb.) and (PSI) - Per Wheel. . . . . . . . . . . . . . . . . 1-3
1-4 Hydraulic Oil Operating Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
1-5 Lubrication Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
1-6 Cylinder Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
1-7 Lubrication Intervals for Various Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5
2-1 Inspection and Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2
2-2 MVL/MSP - Preventive Maintenance & Inspection Schedule. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
2-3 Chain Stretch Tolerance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
3-1 Wheel Torque Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-3
3-2 Battery Low Voltage Warning Indicators. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-20
3-3 Battery Charger Algorithm Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-22
4-1 MVL/MSP Ground Control Module - Field Programmable Settings and Factory Preset. . . . . . . .4-14
5-1 MVL/MSP Mast Component Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-16
6-1 LCD Display - Service Fault Code Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-10
6-2 Ohm Ratings for Various Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-16
6-3 Amperage Draw for Various Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-16
6-4 Special Pin Extractor Tools for Electrical Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-16
6-5 Machine In Drive Speed Cut-Back (Turtle) Mode All The Time . . . . . . . . . . . . . . . . . . . . . . . . . . .6-17
6-6 Obstruction Sensor System - Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-18
6-7 Code 02 - Left PHP Bar - UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-19
6-8 Code 03 - Right PHP Bar - UP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-19
6-9 Code 04 - Tilt Condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-20
6-10 Code 06 - Drive Motor Brush Wear Warning Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-21
6-11 Code 07 - Left Drive Motor - Disconnected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-21
6-12 Code 08 - Right Drive Motor Disconnected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-22
6-13 Code 09 - Left Brake - Disconnected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-22
6-14 Code 10 - Right Brake - Disconnected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-22
6-15 Code 11 - Left Drive Motor - Short Circuit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-23
6-16 Code 12 - Right Drive Motor - Short Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-23
6-17 Code 13 - Traction Module - In Fold Back . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-23
6-18 Code 14 - Pump Motor - Disconnected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-24
6-19 Code 15 - Lift Down Valve - Disconnected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-24
6-20 Code 16 - Lift Down Valve - Short Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-25
6-21 Code 17 - Ground Control Module - In Fold Back . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-25
6-22 Code 18 - Alarm - Short Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-25
6-23 Code 19 - Alarm - Disconnected. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-26
6-24 Code 20 - Beacon - Short Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-26
6-25 Code 21 - Beacon - Short Disconnected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-27
6-26 Code 22 - Horn - Short Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-27
6-27 Code 23 - Horn - Disconnected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-28
6-28 Code 24 - Auxiliary #1 Circuit - Short Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-28
6-29 Code 25 - Auxiliary #1 Circuit - Disconnected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-29
6-30 Code 26 - Auxiliary #2 - Short Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-29
6-31 Code 27 - Auxiliary #2 - Disconnected. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-30
6-32 Code 30 - Traction Module - No Communication with Ground Control Module . . . . . . . . . . . . . .6-30
6-33 Code 31 - Platform Control Console - No Communication with Ground Control Module . . . . . . .6-31
6-34 Code 32 - Pump Motor - Over Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-31
6-35 Code 33 - Both PHP Bars - UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-32
6-36 Code 34 - P2-Auxiliary #1 - Inhibit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-32
6-37 Code 35 - P2-Auxiliary #1 - Tie Down. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-32
6-38 Code 40 - OSS - No Communication with Ground Control Module . . . . . . . . . . . . . . . . . . . . . . .6-34
6-39 Codes 41 thru 46 - OSS - Sensor 1 through 6 - Fault Condition . . . . . . . . . . . . . . . . . . . . . . . . . . 6-35
viii – JLG Lift – 3121231
TABLE OF CONTENTS
6-40 Codes (100 - 199) Ground Control Module - Fault Condition . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-36
6-41 Code (200 - 299) Platform Control Console - Fault Condition . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-37
6-42 Codes (300 - 399) Traction Control Module - Fault Condition . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-38
6-43 Machine Will Not Power UP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-39
6-44 Platform Will Not Lower Manually. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-40
6-45 Platform Lift Up and Down Jerky . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-40
6-46 Mast Noisy when Lifting and Lowering. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-41
6-47 Platform (Mast) Won’t Stay Elevated. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-42
6-48 Platform (Mast) Descends Too Slowly.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-42
6-49 Hydraulic Leak Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-43
6-50 Caster Wheels Not Operating Freely. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-44
6-51 Pot Hole Protection (PHP) Bars will not Lower. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-44
6-52 Won’t Climb Grade . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-45
6-53 Machine Drive in Opposite Direction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-45
6-54 Machine Won’t Drive Straight.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-46
6-55 Noise from Drive Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-47
3121231 – JLG Lift – ix
TABLE OF CONTENTS
NOTES:
x – JLG Lift – 3121231
SECTION 1 - MACHINE SPECIFICATIONS

SECTION 1. MACHINE SPECIFICATIONS

Table 1-1. General Machine Specifications
15MVL 20MVL 15MSP 20MSP
Maximum Occupants: 1
Maximum Work Load (Capacity):
(MVL-Std. Platform / MSP - Stockpicker Platform)
Maximum Travel Grade (Gradeability):
(Platform STOWED ONLY)
Maximum Travel Grade (Side Slope):
(Platform STOWED ONLY)
Maximum Vertical Platform Height:
500 lb.
(230 kg)
15 ft. 2 in.
(4.69 m)
350 lb.
(160 kg)
19 ft. 1 in .
(5.80 m)
20% (11.5°)
15 f t . 1 i n.
500 lb.
(230 kg)
(4.66 m)
(1)
400 lb.
(180 kg)
19 ft. 6 in.
(5.96 m)
Maximum Drive Speeds (Operator Variable): 0.5 - 3.4 mph (0.8 - 5.5 kph)
Max. Platform Speeds (w/Max. Load): P la t fo r m Up : 2 0 s e c. 2 2. 5 se c . 2 0 s e c. 2 2. 5 se c .
P l a tf o rm D o wn : 15 - 21 s ec . 2 1 - 2 6 se c . 1 5 - 2 1 se c . 2 1 - 2 6 se c .
Gross Machine Weight (Platform Empty):
2,235 lb. (955 kg)
2,235 lb. (955 kg)
2,280 lb. (975 kg)
2,280 lb. (975kg)
NOTE: (1) Standard unless equipped with 14 ft. limiter circuit.
3121231 – JLG Lift – 1-1
SECTION 1 - MACHINE SPECIFICATIONS

1.1 CAPACITIES

System Voltage

All Models – 24 Volt DC

Hydraulic System

All Models – 5 qts. U.S. (4.7 L)

Drive Motor GearBox (gear oil)

All Models – 10 oz. (296cc)

1.2 COMPONENT DATA

Hydraulic Pump/Pump Motor Assembly

Pump Motor - 24 Volt DC motor, Standard Duty
Pump Displacement –
MVL/MSP – .098 cu. in./rev. (1.6cc/rev.)
Pump Output (Max.) –
MVL/MSP - 1.20 gpm @ 2200 psi @ 23.5 volts and
105 amps @ 45 centistrokes (200 SSU)
Reservoir CapacityMVL/MSP - 1 Gallon (3.78 L)

Rear Wheel Drive Motors

Drive Motors - 24 Volt DC, Variable
Gear Box - 3500 in. lb. (395.5 Nm) - Continuous Output
7000 in. lb. (791 Nm) - Intermittent Output
30.68:1 Gear Ratio
Brakes - Friction Disk - Spring Applied - Electrically
Released

Batteries/Battery Charger

Batteries (2) - AGM - 12 Volt/100 Amp Hour - (STD) (@ 20 Hr. rate)
- Sealed/Maintenance Free
- Weight – 71-75 lb. (34 Kg) - Per Battery
Batteries (4) - AGM - 6 Volt/220 Amp Hour - (OPTION) (@ 20 Hr. rate)
- Sealed/Maintenance Free
- Weight – 66 lb. (30 Kg) - Per Battery
Battery Charger
Microprocessor Controlled/SCR Circuit Monitor 120/240 Volt A.C. Selectable 50/60 Hz input 24 volt, 20 amp output - with 2 amp finish Reset Circuit Breaker Automatic Charge Circuit Plug Interlock Circuit
NOTE: The batteries on MVL/MSP machines require
approximately five (5) hours to fully charge when drained to LOW BATTERY VOLTAGE warning on the Ground Control Module LCD display.

1.3 PERFORMANCE DATA

Platform Capacities

GullWing-Front - 15MVL - 500 lb. (230kg)
20MVL - 350 lb. (160kg)
SlideBar-Front - 15MVL - 500 lb. (230kg)
20MVL - 350 lb. (160kg)
StockPicker - 15MSP - 500 lb. (230kg)
20MSP - 400 lb. (180kg)
GullWing-Extendible - 15MVL - 500 lb. (230kg)
20MVL - 350 lb. (160kg)
SideEntry/w Folding Material Tray -
JLG MACHINES EQUIPPED WITH DELTA Q BATTERY CHARGERS ARE DESIGNED FOR THE BEST PERFORMANCE WITH OEM FAC­TORY APPROVED BATTERIES.
APPROVED JLG REPLACEMENT BATTERIES ARE AVAILABLE THROUGH JLG’S AFTERMARKET PARTS DISTRIBUTION CEN­TERS OR JLG’S AFTERMARKET PROGRAMS. FOR ASSISTANCE WITH PROPER BATTERY REPLACEMENT, PLEASE CONTACT YOUR LOCAL JLG SUPPORT OFFICE.
BATTERIES APPROVED BY JLG HAVE BEEN TESTED FOR COM­PATIBILITY WITH THE ALGORITHM PROGRAMMING OF THE DELTA Q BATTERY CHARGER TO OPTIMIZE BATTERY LIFE AND MACHINE CYCLE TIMES. THE USE OF NON APPROVED BATTER­IES IN YOUR JLG EQUIPMENT MAY RESULT IN PERFORMANCE ISSUES OR BATTERY CHARGER FAULT CODES. JLG ASSUMES NO RESPONSIBILITY FOR SERVICE OR PERFORMANCE ISSUES ARISING FROM THE USE OF NON APPROVED BATTERIES.
Platform
SPEC
ANSI/
CSA
CE
AUS
(1) This platform is only available on models shown.
NOTE: Distribute weight evenly in platform when loading.
Reference the capacity decal on the machines’ decal billboard mounted on mast.
(1)
Model
15MSP 300 lb.
20MSP 300 lb.
20MVL 250 lb.
15MVL 350 lb.
20MVL 250 lb.
Capacity
(136 kg)
(136 kg)
(115kg)
(160 kg)
(115kg)
Tray
Capacity
150 lb. (70 kg)
150 lb
(70 kg)
100 lb. (45 kg)
150 lb. (70 kg)
100 lb. (45 kg)
Combined
Capacity
450 lb.
(206 kg)
450 lb.
(206 kg)
350 lb.
(160 kg)
500 lb.
(230 kg)
350 lb.
(160 kg)
1-2 – JLG Lift – 3121231
SECTION 1 - MACHINE SPECIFICATIONS

Platform Size

Oversized Standard - 26 in.- W x 28 in.- L (66cm x 71cm)
Stockpicker - 28 in.- W x 48 in.- L (71cm x 122cm)
Extendible - 26 in.- W x 49 in.- L (66cm x 124cm)
Plat. w/Mat’l Tray - 27 in.- W x 23 in.- L (68cm x 58cm)
Plat. w/Folding Tray - 26 in.- W x 30 in.- L (66cm x 76cm)

Machine Ground Clearance

PHP Retracted - 2 in. (5.1cm) PHP Extended - 0.75 in. (1.9cm)

Base Footprint

MVL/MSP - 29.25 in.- W x 52 in.- L (74cm) x (132cm)

Machine Height (platform stowed)

MVL/MSP - 78 in. (198cm) height
Table 1-2. 15MVL/MSP - Machine Maximum Wheel Loads (Lb.) and (PSI) - Per Wheel.
15MVL 15MSP
Platform Type
(Loaded to Max.
Capacity)
22 x 25 SB 865 490 138 252
28 x 26 GW 845 550 128 265
26 x 50 GW 860 515 115 321 860 515 115 321
28 x 48 SP
w/Folding Tray 810 565 125 313
NOTE: Platform Types: SB - with Sliding Bar Gate GW - with Gull Wing Gate SP - Stock Picker Platform
Wheel Load Per Wheel (Lb.) (PSI) Per Whe el Wheel Load Per Wheel (Lb.) (PSI) Per Whee l
Rear Front Rear Front Rear Front Rear Front
Average Maximum Average Maximum
755 615 117 306
Table 1-3. 20MVL/MSP - Machine Maximum Wheel Loads (Lb.) and (PSI) - Per Wheel.
20MVL 20MSP
Platform Type
(Loaded to Max.
Capacity)
22 x 25 SB 855 450 132 250
28 x 26 GW 835 460 121 261
26 x 50 GW 850 480 131 277 850 480 131 259
28 x 48 SP
w/Folding Tray 810 565 125 313
NOTE: Platform Types: SB - with Sliding Bar Gate GW - with Gull Wing Gate SP - Stock Picker Platform
Wheel Load Per Wheel (Lb.) (PSI) Per Wheel Wheel Load Per Wheel (Lb.) (PSI) Per Wheel
Rear Front Rear Front Rear Front Rear Front
Average Maximum Average Maximum
815 560 120 320
3121231 – JLG Lift – 1-3
SECTION 1 - MACHINE SPECIFICATIONS

1.4 LUBRICATION

NOTE: Also see Lubrication Interval Chart - Table 1-7, Lubri-
cation Intervals for Various Components in this sec­tion of the manual.

Hydraulic Oil

Hydraulic oils must have anti-wear qualities at least to API Service Classification GL-3, and sufficient chemical stabil­ity for mobile hydraulic system service. JLG Industries, recommends Mobilfluid 424 hydraulic oil, which has an SAE viscosity of 10W-30 and a viscosity index of 152.
For cold weather applications, i.e. when temperatures remain consistently below +20°F (–7°C) JLG recom­mends using Mobil DTE 13 hydraulic oil.
Aside from JLG recommendations, it is not advisable to mix oils of different brands or types, as they may not con­tain the same required additives or be of comparable vis­cosities. If use of hydraulic oil other than Mobilfluid 424 is desired, contact JLG Industries for proper recommenda­tions.
Table 1-4. Hydraulic Oil Operating Range
HYDRAULIC SYSTEM OPERATING
TEMPERATURE RANGE
+0° F to +180° F
(-18° C to +83° C)
SAE VISCOSITY
GRADE
10W

1.5 CYLINDER SPECIFICATIONS

NOTE: All dimensions are given in inches (in), with the met-
ric equivalent, centimeters (cm), given in parenthe­ses.
Table 1-6. Cylinder Specifications
DESCRIPTION
15MVL/15MSP ­Lift Cylinder
20MVL/20MSP ­Lift Cylinder
BORE
in./(cm)
1.63
(4.10)
1.63
(4.10)
STROKE
in./(cm)
41.50
(105.4)
54.0
(137.1)
ROD DIA.
in./(cm)
1.375 (3.49)
1.375 (3.49)

1.6 SERIAL NUMBER LOCATIONS

For machine identification, a serial number plate is affixed to the machine. The plate is located on the back of the mast, just above the mast support column.

1.7 TORQUE REQUIREMENTS

When maintenance becomes necessary or a fastener has loosened, refer to the applicable Torque Charts in this sec­tion of the manual, to determine proper torque values for different size fasteners.
+0° F to +210° F
(-18° C to +99° C)
+50° F to +210° F
(+10° C to +99° C)
10W-20, 10W-30
20W-20

Lubrication Specifications

Table 1-5. Lubrication Specifications
KEY SPECIFICATIONS
MPG - Multipurpose Grease having a minimum dripping point
of 350° F. Excellent water resistance and adhesive qual­ities, and being of extreme pressure type. (Timken OK 40 pounds minimum.)
EPGL - Extreme Pressure Gear Lube (oil) meeting API service
c la ss if i ca ti on GL- 5 or MI L-S pe c MI L-L- 21 0 5.
H O - H yd ra u li c Oi l . I SO -V g gr ad e 32 , 4 6.
CL - Chain Lube. Use a good quality chain lubricant.
1-4 – JLG Lift – 3121231
SECTION 1 - MACHINE SPECIFICATIONS
Table 1-7.Lubrication Intervals for Various Components
ITEM COMPONENT
1
Hydraulic Oil
2
Mast Chains
Key to Lubricants: MPG - Multipurpose Grease
Notes: (a) Be certain to lubricate like items on each side of the machine.
(b) Recommended lubricating intervals are based on normal use. If machine is subjected to severe operating conditions,
such as a high number of cycles, location, corrosive/dirty environment, etc., user must adjust lubricating requirements accordingly.
(c) Prior to checking hydraulic oil level, operate machine through one complete cycle of lift function (full up and down). Failure to do so
HO - Hydraulic Oil - ISO-Vg grade 32, 46. GEAR OIL - Good Quality Worm Gear Oil - SAE 90 - AGMA#5 - EP Compounded CL - Chain Lube. Use a good quality chain lubricant
will result in incorrect oil level reading on the hydraulic reservoir.
NO/TYPE
LUBE POINTS
Fill To Line on Reservoir 5 Qt. Reservoir
2 - Per Section Chain Lube - Brush or
(a)
LUBE/METHOD
HO - Check Hyd. Oil L e ve l HO - Change Hyd. Oil
Spray
3
MONTHS6MONTHS1YEAR2YEARS
INTERVAL
(b)
COMMENTS
Check fluid level every day.
Change hydraulic oil every 2 years.
Inspect, lubricate if dry or rusting.
(c)
3121231 – JLG Lift – 1-5
SECTION 1 - MACHINE SPECIFICATIONS
REFERENCE JLG ANEROBIC THREAD LOCKING COMPOUND
JLG P/N Loctite® P/N ND Industries P/N
Description
0100011
242
TM
Vibra-TITE
TM
121
Medium Strength (Blue)
0100019
271
TM
Vibra-TITE
TM
140
High Strength (Red)
0100071
262
TM
Vibra-TITE
TM
131
Medium - High Strength (Red)
Size TPI Bolt Dia
Tensile
Stress Area
Clamp Load
In Sq In LB IN-LB [N.m] IN-LB [N.m] IN-LB [N.m] IN-LB [N.m]
4 40 0.1120 0.00604 380 8 0.9 6 0.7
48 0.1120 0.00661 420 9 1.0 7 0.8
6 32 0.1380 0.00909 580 16 1.8 12 1.4
40 0.1380 0.01015 610 18 2.0 13 1.5
8 32 0.1640 0.01400 900 30 3.4 22 2.5
36 0.1640 0.01474 940 31 3.5 23 2.6
10 24 0.1900 0.01750 1120 43 4.8 32 3.5
32 0.1900 0.02000 1285 49 5.5 36 4
1/4 20 0.2500 0.0318 2020 96 10.8 75 9 105 12
28 0.2500 0.0364 2320 120 13.5 86 10 135 15
In Sq In LB FT-LB [N.m] FT-LB [N.m] FT-LB [N.m] FT-LB [N.m]
5/16 18 0.3125 0.0524 3340 17 23 13 18 19 26 16 22
24 0.3125 0.0580 3700 19 26 14 19 21 29 17 23
3/8 16 0.3750 0.0775 4940 30 41 23 31 35 48 28 38
24 0.3750 0.0878 5600 35 47 25 34 40 54 32 43
7/16 14 0.4375 0.1063 6800 50 68 35 47 55 75 45 61
20 0.4375 0.1187 7550 55 75 40 54 60 82 50 68
1/2 13 0.5000 0.1419 9050 75 102 55 75 85 116 68 92
20 0.5000 0.1599 10700 90 122 65 88 100 136 80 108
9/16 12 0.5625 0.1820 11600 110 149 80 108 120 163 98 133
18 0.5625 0.2030 12950 120 163 90 122 135 184 109 148
5/8 11 0.6250 0.2260 14400 150 203 110 149 165 224 135 183
18 0.6250 0.2560 16300 170 230 130 176 190 258 153 207
3/4 10 0.7500 0.3340 21300 260 353 200 271 285 388 240 325
16 0.7500 0.3730 23800 300 407 220 298 330 449 268 363
7/8 9 0.8750 0.4620 29400 430 583 320 434 475 646 386 523
14 0.8750 0.5090 32400 470 637 350 475 520 707 425 576
1 8 1.0000 0.6060 38600 640 868 480 651 675 918 579 785
12 1.0000 0.6630 42200 700 949 530 719 735 1000 633 858
1 1/8 7 1.1250 0.7630 42300 800 1085 600 813 840 1142 714 968
12 1.1250 0.8560 47500 880 1193 660 895 925 1258 802 1087
1 1/4 7 1.2500 0.9690 53800 1120 1518 840 1139 1175 1598 1009 1368
12 1.2500 1.0730 59600 1240 1681 920 1247 1300 1768 1118 1516
1 3/8 6 1.3750 1.1550 64100 1460 1979 1100 1491 1525 2074 1322 1792
12 1.3750 1.3150 73000 1680 2278 1260 1708 1750 2380 1506 2042
1 1/2 6 1.5000 1.4050 78000 1940 2630 1460 1979 2025 2754 1755 2379
12 1.5000 1.5800 87700 2200 2983 1640 2224 2300 3128 1974 2676
NO. 5000059 REV. J
Values for Zinc Yellow Chromate Fasteners (Ref 4150707)
SAE GRADE 5 BOLTS & GRADE 2 NUTS
Torque
(Dry)
Torque
(Loctite® 262
TM
or Vibra-
TITE
TM
131)
Torque
Lubricated
Torque
(Loctite® 242
TM
or 271
TM
OR Vibra-TITE
TM
111 or
140)
3. * ASSEMBLY USES HARDENED WASHER
NOTES: 1. THESE TORQUE VALUES DO NOT APPLY TO CADMIUM PLATED FASTENERS
2. ALL TORQUE VALUES ARE STATIC TORQUE MEASURED PER STANDARD AUDIT METHODS TOLERANCE = ±10%
Figure 1-1. Torque Chart (SAE Fasteners - Sheet 1 of 7)
1-6 – JLG Lift – 3121231
SECTION 1 - MACHINE SPECIFICATIONS
Size TPI Bolt Dia
Tensile
Stress Area
Clamp Load
In Sq In
4 40 0.1120 0.00604
48 0.1120 0.00661
6 32 0.1380 0.00909
40 0.1380 0.01015
8 32 0.1640 0.01400
36 0.1640 0.01474
10 24 0.1900 0.01750
32 0.1900 0.02000
1/4 20 0.2500 0.0318
28 0.2500 0.0364
In Sq In
5/16 18 0.3125 0.0524
24 0.3125 0.0580
3/8 16 0.3750 0.0775
24 0.3750 0.0878
7/16 14 0.4375 0.1063
20 0.4375 0.1187
1/2 13 0.5000 0.1419
20 0.5000 0.1599
9/16 12 0.5625 0.1820
18 0.5625 0.2030
5/8 11 0.6250 0.2260
18 0.6250 0.2560
3/4 10 0.7500 0.3340
16 0.7500 0.3730
7/8 9 0.8750 0.4620
14 0.8750 0.5090
1 8 1.0000 0.6060
12 1.0000 0.6630
1 1/8 7 1.1250 0.7630
12 1.1250 0.8560
1 1/4 7 1.2500 0.9690
12 1.2500 1.0730
1 3/8 6 1.3750 1.1550
12 1.3750 1.3150
1 1/2 6 1.5000 1.4050
12 1.5000 1.5800
NO. 5000059 REV. J
3. * ASSEMBLY USES HARDENED WASHER
NOTES: 1. THESE TORQUE VALUES DO NOT APPLY TO CADMIUM PLATED FASTENERS
2. ALL TORQUE VALUES ARE STATIC TORQUE MEASURED PER STANDARD AUDIT METHODS TOLERANCE = ±10%
LB IN-LB [N.m] IN-LB [N.m] IN-LB [N.m]
1320 43 5 1580 60 7 1800 68 8 2860 143 16 129 15 3280 164 19 148 17
LB FT-LB [N.m] FT-LB [N.m] FT-LB [N.m
4720 25 35 20 25 20 25 5220 25 35 25 35 20 25 70004560 40 553550 7900 50 70 45 60 35 50
9550 70 95 65 90 50 70 10700 80 110 70 95 60 80 12750 105 145 95 130 80 110 14400 120 165 110 150 90 120 16400 155 210 140 190 115 155 18250 170 230 155 210 130 175 20350 210 285 190 260 160 220 23000 240 325 215 290 180 245 30100 375 510 340 460 280 380 33600 420 570 380 515 315 430 41600 605 825 545 740 455 620 45800 670 910 600 815 500 680 51500 860 1170 770 1045 645 875 59700 995 1355 895 1215 745 1015 68700 1290 1755 1160 1580 965 1310 77000 1445 1965 1300 1770 1085 1475
87200 1815 2470 1635 2225 1365 1855 96600 2015 2740 1810 2460 1510 2055
104000 2385 3245 2145 2915 1785 2430
118100 2705 3680 2435 3310 2030 2760 126500 3165 4305 2845 3870 2370 3225 142200 3555 4835 3200 4350 2665 3625
Torque
(Loctite® 242
TM
or 271
TM
OR Vibra-TITE
TM
111 o r
140) K=.18
Torque
(Loctite® 262
TM
or Vibra-
TITE
TM
131)
K=0.15
SAE GRADE 8 (HEX HD) BOLTS & GRADE 8 NUTS*
Torque
(Dry or Loctite® 263)
K= 0.20
3121231 – JLG Lift – 1-7
Figure 1-2. Torque Chart (SAE Fasteners - Sheet 2 of 7))
SECTION 1 - MACHINE SPECIFICATIONS
Size TPI Bolt Dia
Tensile
Stress Area
Clamp Load
See Note 4
In Sq In LB IN-LB [N.m] IN-LB [N.m] IN-LB [N.m]
4 40 0.1120 0.00604
48 0.1120 0.00661
6 32 0.1380 0.00909
40 0.1380 0.01015
8 32 0.1640 0.01400
36 0.1640 0.01474
10 24 0.1900 0.01750
32 0.1900 0.02000
1/4 20 0.2500 0.0318 2860 122 14 114 13
28 0.2500 0.0364 3280 139 16 131 15
In Sq In LB FT-LB [N.m] FT-LB [N.m] FT-LB [N.m]
5/16 18 0.3125 0.0524 4720 20 25 20 25 20 25
24 0.3125 0.0580 5220 25 35 20 25 20 25
3/8 16 0.3750 0.0775 7000 35 50 35 50 35 50
24 0.3750 0.0878 7900 40 55 40 55 35 50
7/16 14 0.4375 0.1063 9550 60 80 55 75 50 70
20 0.4375 0.1187 10700 65 90 60 80 60 80
1/2 13 0.5000 0.1419 12750 90 120 85 115 80 110
20 0.5000 0.1599 14400 100 135 95 130 90 120
9/16 12 0.5625 0.1820 16400 130 175 125 170 115 155
18 0.5625 0.2030 18250 145 195 135 185 130 175
5/8 11 0.6250 0.2260 20350 180 245 170 230 160 220
18 0.6250 0.2560 23000 205 280 190 260 180 245
3/4 10 0.7500 0.3340 30100 320 435 300 410 280 380
16 0.7500 0.3730 33600 355 485 335 455 315 430
7/8 9 0.8750 0.4620 41600 515 700 485 660 455 620
14 0.8750 0.5090 45800 570 775 535 730 500 680
1 8 1.0000 0.6060 51500 730 995 685 930 645 875
12 1.0000 0.6630 59700 845 1150 795 1080 745 1015
1 1/8 7 1.1250 0.7630 68700 1095 1490 1030 1400 965 1310
12 1.1250 0.8560 77000 1225 1665 1155 1570 1085 1475
1 1/4 7 1.2500 0.9690 87200 1545 2100 1455 1980 1365 1855
12 1.2500 1.0730 96600 1710 2325 1610 2190 1510 2055
1 3/8 6 1.3750 1.1550 104000 2025 2755 1905 2590 1785 2430
12 1.3750 1.3150 118100 2300 3130 2165 2945 2030 2760
1 1/2 6 1.5000 1.4050 126500 2690 3660 2530 3440 2370 3225
12 1.5000 1.5800 142200 3020 4105 2845 3870 2665 3625
NO. 5000059 REV. J
4. CLAMP LOAD LISTED FOR SHCS IS SAME AS GRADE 8 OR CLASS 10.9 AND DOES NOT REPRESENT FULL STRENGTH
CAPABILITY OF SHCS. IF HIGHER LOAD IS REQUIRED, ADDITIONAL TESTING IS REQUIRED.
SOCKET HEAD CAP SCREWS
Magni Coating (Ref 4150701)*
Torque
(Dry) K = .17
Torque
(Loctite® 242
TM
or 271
TM
OR Vibra-TITE
TM
111 o r
140 OR Precoat 85®
K=0.16
Torque
(Loctite® 262
TM
or Vibra-
TITE
TM
131)
K=0.15
2. ALL TORQUE VALUES ARE STATIC TORQUE MEASURED PER STANDARD AUDIT METHODS TOLERANCE = ±10%
NOTES: 1. THESE TORQUE VALUES DO NOT APPLY TO CADMIUM PLATED FASTENERS
*3. ASSEMBLY USES HARDENED WASHER OR FASTENER IS PLACED AGAINST PLATED STEEL OR RAW ALUMINUM
1-8 – JLG Lift – 3121231
Figure 1-3. Torque Chart (SAE Fasteners - Sheet 3 of 7)
SECTION 1 - MACHINE SPECIFICATIONS
Size TPI Bolt Dia
Tensile
Stress Area
Clamp Load
See Note 4
In Sq In LB IN-LB [N.m] IN-LB [N.m] IN-LB [N.m]
4 40 0.1120 0.00604
48 0.1120 0.00661
6 32 0.1380 0.00909
40 0.1380 0.01015
8 32 0.1640 0.01400
36 0.1640 0.01474
10 24 0.1900 0.01750
32 0.1900 0.02000
1/4 20 0.2500 0.0318 2860 143 16 129 15
28 0.2500 0.0364 3280 164 19 148 17
In Sq In LB FT-LB [N.m] FT-LB [N.m] FT-LB [N.m]
5/16 18 0.3125 0.0524 4720 25 35 20 25 20 25
24 0.3125 0.0580 5220 25 35 25 35 20 25
3/8 16 0.3750 0.0775 7000 45 60 40 55 35 50
24 0.3750 0.0878 7900 50 70 45 60 35 50
7/16 14 0.4375 0.1063 9550 70 95 65 90 50 70
20 0.4375 0.1187 10700 80 110 70 95 60 80
1/2 13 0.5000 0.1419 12750 105 145 95 130 80 110
20 0.5000 0.1599 14400 120 165 110 150 90 120
9/16 12 0.5625 0.1820 16400 155 210 140 190 115 155
18 0.5625 0.2030 18250 170 230 155 210 130 175
5/8 11 0.6250 0.2260 20350 210 285 190 260 160 220
18 0.6250 0.2560 23000 240 325 215 290 180 245
3/4 10 0.7500 0.3340 30100 375 510 340 460 280 380
16 0.7500 0.3730 33600 420 570 380 515 315 430
7/8 9 0.8750 0.4620 41600 605 825 545 740 455 620
14 0.8750 0.5090 45800 670 910 600 815 500 680
1 8 1.0000 0.6060 51500 860 1170 775 1055 645 875
12 1.0000 0.6630 59700 995 1355 895 1215 745 1015
1 1/8 7 1.1250 0.7630 68700 1290 1755 1160 1580 965 1310
12 1.1250 0.8560 77000 1445 1965 1300 1770 1085 1475
1 1/4 7 1.2500 0.9690 87200 1815 2470 1635 2225 1365 1855
12 1.2500 1.0730 96600 2015 2740 1810 2460 1510 2055
1 3/8 6 1.3750 1.1550 104000 2385 3245 2145 2915 1785 2430
12 1.3750 1.3150 118100 2705 3680 2435 3310 2030 2760
1 1/2 6 1.5000 1.4050 126500 3165 4305 2845 3870 2370 3225
12 1.5000 1.5800 142200 3555 4835 3200 4350 2665 3625
NO. 5000059 REV. J
4. CLAMP LOAD LISTED FOR SHCS IS SAME AS GRADE 8 OR CLASS 10.9 AND DOES NOT REPRESENT FULL STRENGTH
CAPABILITY OF SHCS. IF HIGHER LOAD IS REQUIRED, ADDITIONAL TESTING IS REQUIRED.
SOCKET HEAD CAP SCREWS
Torque
(Dry)
K = .20
Torque
(Loctite® 242TM or 271
TM
OR Vibra-TITE
TM
111 o r
140 OR Precoat 85®
K=0.18
Zinc Yellow Chromate Fasteners (Ref 4150707)*
2. ALL TORQUE VALUES ARE STATIC TORQUE MEASURED PER STANDARD AUDIT METHODS TOLERANCE = ±10%
NOTES: 1. THESE TORQUE VALUES DO NOT APPLY TO CADMIUM PLATED FASTENERS
*3. ASSEMBLY USES HARDENED WASHER OR FASTENER IS PLACED AGAINST PLATED STEEL OR RAW ALUMINUM
Torque
(Loctite® 262
TM
or Vibra-
TITE
TM
131)
K=0.15
3121231 – JLG Lift – 1-9
Figure 1-4. Torque Chart (SAE Fasteners - Sheet 4 of 7)
SECTION 1 - MACHINE SPECIFICATIONS
Size PITCH
Tensile
Stress
Area
Clamp
Load
Torque
(Dry or Loctite®
263
TM
)
Torque
(Lub)
Torque
(Loctite® 262
TM
OR Vibra-
TITE
TM
131)
Torque
(Loctite®
242
TM
or 271
TM
OR Vibra-
TITE
TM
111 o r
140)
Sq mm KN [N.m] [N.m] [N.m] [N.m]
3 0.5 5.03 2.19 1.3 1.0 1.2 1.4
3.5 0.6 6.78 2.95 2.1 1.6 1.9 2.3
4 0.7 8.78 3.82 3.1 2.3 2.8 3.4
5 0.8 14.20 6.18 6.2 4.6 5.6 6.8
6 1 20.10 8.74 11 7.9 9.4 12
7 1 28.90 12.6 18 13 16 19
8 1.25 36.60 15.9 26 19 23 28
10 1.5 58.00 25.2 50 38 45 55
12 1.75 84.30 36.7 88 66 79 97
14 2 115 50.0 140 105 126 154
16 2 157 68.3
219 164 197 241
18 2.5 192 83.5 301 226 271 331
20 2.5 245 106.5 426 320 383 469
22 2.5 303 132.0 581 436 523 639
24 3 353 153.5 737 553 663 811
27 3 459 199.5 1080 810 970 1130
30 3.5 561 244.0 1460 1100 1320 1530
33 3.5 694 302.0 1990 1490 1790 2090
36 4 817 355.5 2560 1920 2300 2690
42 4.5 1120 487.0 4090 3070 3680 4290
4. CLAMP LOAD LISTED FOR SHCS IS SAME AS GRADE 8 OR CLASS 10.9 AND DOES NOT REPRESENT FULL STRENGTH CAPABILITY OF SHCS. IF HIGHER LOAD IS REQUIRED, ADDITIONAL TESTING IS REQUIRED.
*3. ASSEMBLY USES HARDENED WASHER OR FASTENER IS PLACED AGAINST PLATED STEEL OR RAW ALUMINUM
CLASS 8.8 METRIC BOLTS
CLASS 8 METRIC NUTS
NOTES: 1. THESE TORQUE VALUES DO NOT APPLY TO CADMIUM PLATED FASTENERS
2. ALL TORQUE VALUES ARE STATIC TORQUE MEASURED PER STANDARD AUDIT METHODS TOLERANCE = ±10%
NO. 5000059 REV. J
Figure 1-5. Torque Chart (METRIC Fasteners - Sheet 5 of 7))
1-10 – JLG Lift – 3121231
SECTION 1 - MACHINE SPECIFICATIONS
Size PITCH
Tensile
Stress
Area
Clamp
Load
Torque
(Dry or Loctite®
263
TM
)
K = 0.20
Torque
(Lub OR Loctite®
242
TM
or 271TM OR
Vibra-TITE
TM
111 o r
140)
K= 0.18
Torque
(Loctite® 262
TM
OR
Vibra-TITE
TM
131)
K=0.15
Sq mm KN [N.m] [N.m] [N.m]
3 0.5 5.03 3.13
3.5 0.6 6.78 4.22
4 0.7 8.78 5.47
5 0.8 14.20 8.85
6 1 20.10 12.5
7 1 28.90 18.0 25.2 22.7 18.9
8 1.25 36.60 22.8 36.5 32.8 27.4
10 1.5 58.00 36.1 70 65 55
12 1.75 84.30 52.5 125 115 95
14 2 115 71.6 200 180 150
16 2 157 97.8
315 280 235
18 2.5 192 119.5 430 385 325
20 2.5 245 152.5 610 550 460
22 2.5 303 189.0 830 750 625
24 3 353 222.0 1065 960 800
27 3 459 286.0 1545 1390 1160
30 3.5 561 349.5 2095 1885 1575
33 3.5 694 432.5 2855 2570 2140
36 4 817 509.0 3665 3300 2750
42 4.5 1120 698.0 5865 5275 4395
CLASS 10.9 METRIC BOLTS
CLASS 10 METRIC NUTS
CLASS 12.9 SOCKET HEAD CAP SCREWS M3 - M5*
4. CLAMP LOAD LISTED FOR SHCS IS SAME AS GRADE 8 OR CLASS 10.9 AND DOES NOT
REPRESENT FULL STRENGTH CAPABILITY OF SHCS. IF HIGHER LOAD IS REQUIRED,
ADDITIONAL TESTING IS REQUIRED.
*3. ASSEMBLY USES HARDENED WASHER OR FASTENER IS PLACED AGAINST PLATED STEEL OR RAW ALUMINUM
NOTES: 1. THESE TORQUE VALUES DO NOT APPLY TO CADMIUM PLATED FASTENERS
2. ALL TORQUE VALUES ARE STATIC TORQUE MEASURED PER STANDARD AUDIT METHODS TOLERANCE = ±10%
NO. 5000059 REV. J
3121231 – JLG Lift – 1-11
Figure 1-6. Torque Chart (METRIC Fasteners - Sheet 6 of 7)
SECTION 1 - MACHINE SPECIFICATIONS
Size PITCH
Tensile
Stress
Area
Clamp Load
See Note 4
Torque
(Dry or Loctite®
263
TM
)
K = .17
Torque
(Lub OR Loctite®
242
TM
or 271
TM
OR Vibra-TITE
TM
111 or 140)
K = .16
Torque
(Loctite® 262
TM
OR Vibra-TITE
TM
131)
K = .15
Sq mm kN [N.m] [N.m] [N.m]
30.55.03
3.5 0.6 6.78
40.78.78
50.814.20
6120.1012.5 13 12 11
7128.9018.0 21 20 19
8 1.25 36.60 22.8 31 29 27
10 1.5 58.00 36.1 61 58 54
12 1.75 84.30 52.5 105 100 95
14 2 115 71.6 170 160 150
16 2 157
97.8 265 250 235
18 2.5 192 119.5 365 345 325
20 2.5 245 152.5 520 490 460
22 2.5 303 189.0 705 665 625
24 3 353 220.0 900 845 790
27 3 459 286.0 1315 1235 1160
30 3.5 561 349.5 1780 1680 1575
33 3.5 694 432.5 2425 2285 2140
36 4 817 509.0 3115 2930 2750
42 4.5 1120 698.0 4985 4690 4395
CLASS 12.9 SOCKET HEAD CAP SCREWS
M6 AND ABOVE*
4. CLAMP LOAD LISTED FOR SHCS IS SAME AS GRADE 8 OR CLASS 10.9 AND DOES NOT
REPRESENT FULL STRENGTH CAPABILITY OF SHCS. IF HIGHER LOAD IS REQUIRED,
ADDITIONAL TESTING IS REQUIRED.
*3. ASSEMBLY USES HARDENED WASHER OR FASTENER IS PLACED AGAINST PLATED STEEL OR RAW ALUMINUM
NOTES: 1. THESE TORQUE VALUES DO NOT APPLY TO CADMIUM PLATED FASTENERS
2. ALL TORQUE VALUES ARE STATIC TORQUE MEASURED PER STANDARD AUDIT METHODS TOLERANCE = ±10%
NO. 5000059 REV. J
Magni Coating (Ref 4150701)*
Figure 1-7. Torque Chart (METRIC Fasteners - Sheet 7 of 7)
1-12 – JLG Lift – 3121231

SECTION 2. GENERAL

SECTION 2 - GENERAL

2.1 MACHINE PREPARATION, INSPECTION, AND MAINTENANCE

General

This section provides the necessary information needed by those personnel that are responsible to place the machine in operation readiness and maintain its safe operating condition. For maximum service life and safe operation, ensure that all the necessary inspections and maintenance have been completed before placing the machine into service.

Preparation, Inspection, and Maintenance

It is important to establish and conform to a comprehen­sive inspection and preventive maintenance program. The following table outlines the periodic machine inspections and maintenance recommended by JLG Industries, Inc. Consult your national, regional, or local regulations for fur­ther requirements for aerial work platforms. The frequency of inspections and maintenance must be increased as environment, severity and frequency of usage requires.

Pre-Start Inspection

It is the User’s or Operator’s primary responsibility to per­form a Pre-Start Inspection of the machine prior to use daily or at each change of operator. Reference the Opera­tor’s and Safety Manual for completion procedures for the Pre-Start Inspection. The Operator and Safety Manual must be read in its entirety and understood prior to per­forming the Pre-Start Inspection.

Pre-Delivery Inspection and Frequent Inspection

The Pre-Delivery Inspection and Frequent Inspection shall be performed by a qualified JLG equipment mechanic. JLG Industries, Inc. recognizes a qualified JLG equipment mechanic as a person who, by possession of a recog­nized degree, certificate, extensive knowledge, training, or experience, has successfully demonstrated the ability and proficiency to service, repair, and maintain the subject JLG product model.
The Pre-Delivery Inspection and Frequent Inspection pro­cedures are performed in the same manner, but at differ­ent times. The Pre-Delivery Inspection shall be performed prior to each sale, lease, or rental delivery. The Frequent Inspection shall be accomplished for each machine in ser­vice for 3 months; out of service for a period of more than 3 months; or when purchased used. The frequency of this inspection must be increased as environment, severity and frequency of usage requires.
Reference the JLG Pre-Delivery and Frequent Inspection Form and the Inspection and Preventative Maintenance Schedule for items requiring inspection during the perfor­mance of these inspections. Reference the appropriate areas of this manual for servicing and maintenance proce­dures.

Annual Machine Inspection

The Annual Machine Inspection must be performed by a qualified JLG equipment mechanic on an annual basis, no later than thirteen (13) months from the date of the prior Annual Machine Inspection. JLG Industries, Inc. recog­nizes a qualified JLG equipment mechanic as a person who has successfully completed the JLG Service Training School for the subject JLG product model. Reference the machine Service and Maintenance Manual and appropri­ate JLG inspection form for performance of this inspec­tion.
Reference the JLG Annual Machine Inspection Form and the Inspection and Preventative Maintenance Schedule for items requiring inspection during the performance of this inspection. Reference the appropriate areas of this man­ual for servicing and maintenance procedures.
For the purpose of receiving safety-related bulletins, it is important that JLG Industries, Inc. has updated ownership information for each machine. When performing each Annual Machine Inspection, notify JLG Industries, Inc. of the current machine ownership.

Preventative Maintenance

In conjunction with the specified inspections, mainte­nance shall be performed by a qualified JLG equipment mechanic. JLG Industries, Inc. recognizes a qualified JLG equipment mechanic as a person who, by possession of a recognized degree, certificate, extensive knowledge, train­ing, or experience, has successfully demonstrated the ability and proficiency to service, repair, and maintain the subject JLG product model.
Reference Table 2-2, MVL/MSP - Preventive Maintenance & Inspection Schedule., and the appropriate areas of this manual for servicing and maintenance procedures. The frequency of service and maintenance must be increased as environment, severity and frequency of usage requires.
3121231 – JLG Lift – 2-1
SECTION 2 - GENERAL
Table 2-1. Inspection and Maintenance
Typ e Frequency
Pre-Start Inspection
Pre-Delivery Inspection
Frequent Inspection
Annual Machine Inspection
Preventative Maintenance
Prior to use each day; or At each Operator change.
Prior to each sale, lease, or rental delivery.
In service for 3 months; or Out of service for a period of more than 3 months; or Pur­chased used.
Annually, no later than 13 months from the date of the prior inspection.
At intervals as specified in the Ser vice and Maintenance Manual.
Primary
Responsibility
User or Operator User or Operator Operator and Safety Manual
Owner, Dealer, or User Qualified JLG
Owner, Dealer, or User Qualified JLG
Owner, Dealer, or User Qualified JLG
Owner, Dealer, or User Qualified JLG
Service
Qualification
Mechanic
Mechanic
Mechanic
Mechanic
Reference
Service and Maintenance Man­ual and applicable JLG inspec­tion form.
Service and Maintenance Man­ual and applicable JLG inspec­tion form.
Service and Maintenance Man­ual and applicable JLG inspec­tion form.
Service and Maintenance Man­ual

2.2 PREVENTIVE MAINTENANCE AND INSPECTION SCHEDULE

(See Table 2-2.)
The preventive maintenance and inspection checks are listed and defined in the following table. This table is divided into two basic parts, the “AREA” to be inspected and the “INTERVAL” at which the inspection is to take place. Under the “AREA” portion of the table, the various systems along with the components that make up that system are listed. The “INTERVAL” portion of the table is divided into five columns representing the various inspec­tion time periods. The numbers listed within the interval column represent the applicable inspection code for which that component is to be checked.
The checks and services listed in this schedule are not intended to replace any local or regional regulations that may pertain to this type of equipment nor should the lists be considered as all inclusive. Variances in interval times may occur due to climate and/or conditions and depend­ing on the location and use of the machine.
2-2 – JLG Lift – 3121231
SECTION 2 - GENERAL
Table 2-2. MVL/MSP - Preventive Maintenance & Inspection Schedule.
INTERVAL
AREA ON MACHINE
PRE-START (a)
INSPECTION
3 MONTH
PREVENTATIVE MAINTENANCE
MAST ASSEMBLY 7 Mast Sections 2, 5 2, 5 Chain Systems 14 3, 14 14, 25 Sequence Cable Systems 31, 2, 3 Covers or Shields 1 Sheave Systems 1, 2 1, 2 Bearings 1, 2 Slide Pads 1, 2
PLATFORM ASSEMBLY 7 Platform 11 Guard Rails 1, 2, 4 1, 2, 4 Gate 1, 5 1, 5 Floor 1, 2 1, 2 Extension Deck Assembly 1, 5 1, 5 Lanyard Anchorage Point 1, 4 1, 4
CHASSIS ASSEMBLY 7 Pot Hole Protection System 55 Battery and Valve Covers or Doors 1, 7 1, 7 Static Strap 1 Caster Wheels 1, 2 14 1, 2 1, 2 Drive Wheels 22 Gear Box Assembly * 1, 7, 9, 11 Drive Motor Brushes ** — Brake Release 55
FUNCTIONS/CONTROLS 7 Platform Controls 5, 6, 7 5, 6, 7 Ground Controls 5, 6 5, 6, 14 Function Control Locks, Guards, or Detents 5 5 Function Enable System Emergency Stop Switches (Ground & Platform) 5 Function Limit or Cutout Switch Systems 5 Drive Brakes 5 Manual Descent or Auxiliary Power 5 5
POWER SYSTEM
Batteries 19 9 18 Battery Charger 5
HYDRAULIC/ELECTRIC SYSTEM 9 Hydraulic Pump 1, 2, 9 1, 2, 5, 9 Hydraulic Cylinder 2, 7, 9 2, 9 Cylinder Attachment Pi ns and Pin Retainers 1, 2 1, 2 Hydraulic Hoses, Lines, and Fittings 1, 9 1, 9 Hydraulic Reservoir, Cap, and Breather 5, 7 5, 7 Hydraulic Filter
6 MONTH PREVENTATIVE MAINTENANCE
PRE-DELIVERY (b) OR FREQUENT (c)
INSPECTION
ANNUAL (d)
(YEARLY)
INSPECTION
3121231 – JLG Lift – 2-3
SECTION 2 - GENERAL
Table 2-2. MVL/MSP - Preventive Maintenance & Inspection Schedule. (Continued)
INTERVAL
AREA ON MACHINE
PRE-START (a)
INSPECTION
3 MONTH PREVENTATIVE MAINTENANCE
Hydraulic Fluid *** 11 11 11 Electrical Connections 20 20 Instruments, Gauges, Switches, Lights, Horn 5
GENERAL
Operator and Safety Manual in Storage Box 21 21 21 ANSI and EMI Manuals/Handbooks Installed 21 21 21 Capacity Decals Installed, Secure, Legible 21 21 21 All Decals/Placards Installed, Secure, Legible 21 21 21 "Walk-Around" Inspection Perfor med 22 Annual Machine Inspection Due 21 No Unauthorized Modifications or Additions 21 21 All Relevant Safety Publications Incorporated 21 21, 22 General Structural Condition and Welds 2, 4 2, 4 All Fasteners, Pins, Shields, and Covers 1, 2 Grease and Lubricate to Specifications 22 22 Function Test of All Systems 22 22 Paint and Appearance 77 Notify JLG of Change in Machine Ownership 22 * Change only when serviced, requires 10 oz. (296cc’s) to fill.
** Replace after system brush wear indicator warning is activated on Ground Control Station. *** Drain and refill with fresh hydraulic fluid every two years.
6 MONTH PREVENTATIVE MAINTENANCE
PRE-DELIVERY (b) OR FREQUENT (c)
INSPECTION
ANNUAL (d)
(YEARLY)
INSPECTION

Inspection and Maintenance Codes:

1. Check for proper and secure installation.
2. Visual inspection for damage, cracks, distortion, or excessive wear.
3. Check for proper adjustment.
4. Check for cracked or broken welds.
5. Operates properly.
6. Returns to neutral or "off" position when released.
7. Clean and free of debris.
8. Interlocks function properly.
9. Check for signs of leakage.
10. Decals installed and legible.
11. Check for proper fluid level.
12. Check for chafing and proper routing.
13. Check for proper tolerances.
14. Properly lubricated.
15. Torqued to proper specification.
16. No gouges, excessive wear, or cords showing.
17. Properly inflated and seated around rim.
18. Proper and authorized components.
19. Fully charged.
20. No loose connections, corrosion, or abrasions.
21. Verify.
22. Perform.
23. Sealed properly.
24. Overrides Platform controls.
25. Inspected per Service and Maintenance Manual.

Footnotes:

(a) Prior to use each day; or at each Operator change
(b) Prior to each sale, lease, or delivery
(c) In service for 3 months; or Out of service for 3 months
or more; or Purchased used
(d) Annually, no later than 13 months from the date of the prior annual inspection
2-4 – JLG Lift – 3121231
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