Oshkosh Corporation JLG 1250AJP Use and care manual

Operation and Safety Manual
ANSI
®
Original Instructions - Keep this manual with the machine at all times.
AS/NZS
Model
1250AJP
PVC 2001
31215057
August 26, 2020 - Rev C

WARNING
Operating, servicing and maintaining this vehicle or equipment
can expose you to chemicals including engine exhaust, carbon
monoxide, phthalates, and lead, which are known to the State of
California to cause cancer and birth defects or other
reproductive harm. To minimize exposure, avoid breathing
exhaust, do not idle the engine except as necessary, service your
vehicle or equipment in a well-ventilated area and wear gloves
or wash your hands frequently when servicing. For more
information go to www.P65Warnings.ca.gov.

FOREWORD
31215057 a
FOREWORD
The Mobile Elevating Work Platform (MEWP) models covered in this manual are designed and tested to meet or exceed var-
ious compliance standards. Please refer to the manufacturer’s nameplate affixed to the subject MEWP for specific standard
compliance information.
This manual is a very important tool! Keep it with the machine at all times.
The purpose of this manual is to provide owners, users, operators, lessors, and lessees with the precautions and operating
procedures essential for the safe and proper machine operation for its intended purpose.
Due to continuous product improvements, JLG Industries, Inc. reserves the right to make specification changes without
prior notification. Contact JLG Industries, Inc. for updated information.
Refer to www.JLG.com for Warranty, Product Registration, and other machine-related documentation.

FOREWORD
b31215057
SAFETY ALERT SYMBOLS AND SAFETY SIGNAL WORDS
INDICATES AN IMMINENTLY HAZARDOUS SITUATION. IF NOT AVOIDED, WILL
RESULT IN SERIOUS INJURY OR DEATH. THIS DECAL WILL HAVE A RED BACK-
GROUND.
INDICATES A POTENTIALLY HA ZARDOUS SITUATION. IF NOT AVOIDED, COULD
RESULT IN SERIOUS INJURY OR DEATH. THIS DECAL WILL HAVE AN ORANGE BACK-
GROUND.
INDICATES A POTENTIALLY HAZARDOUS SITUATION. IF NOT AVOIDED, MAY RESULT
IN MINOR OR MODERATE INJURY. IT MAY ALSO ALERT AGAINST UNSAFE PRACTICES.
THIS DECAL WILL HAVE A YELLOW BACKGROUND.
INDICATES INFORMATION OR A COMPANY POLICY THAT RELATES DIRECTLY OR INDI-
RECTLY TO THE SAFETY OF PERSONNEL OR PROTECTION OF PROPERTY.
This is the Safety Alert Symbol. It is used to alert you to the potential personal injury
hazards. Obey all safety messages that follow this symbol to avoid possible injury or
death

FOREWORD
31215057 c
THIS PRODUCT MUST COMPLY WITH ALL SAFETY RELATED BULLETINS. CONTACT JLG
INDUSTRIES, INC. OR THE LOCAL AUTHORIZED JLG REPRESENTATIVE FOR INFORMA-
TION REGARDING SAFETY-RELATED BULLETINS WHICH MAY HAVE BEEN ISSUED FOR
THIS PRODUCT.
JLG INDUSTRIES, INC. SENDS SAFETY RELATED BULLETINS TO THE OWNER OF
RECORD OF THIS MACHINE. CONTACT JLG INDUSTRIES, INC. TO ENSURE THAT THE
CURRENT OWNER RECORDS ARE UPDATED AND ACCURATE.
JLG INDUSTRIES, INC. MUST BE NOTIFIED IMMEDIATELY IN ALL INSTANCES WHERE
JLG PRODUCTS HAVE BEEN INVOLVED IN AN ACCIDENT INVOLVING BODILY INJURY
OR DEATH OR WHEN SUBSTANTIAL DAMAGE HAS OCCURRED TO PERSONAL PROP-
ERTY OR THE JLG PRODUCT.
Contact:
Product Safety and Reliability Department
JLG Industries, Inc.
13224 Fountainhead Plaza
Hagerstown, MD 21742
USA
or Your Local JLG Office
(See addresses on inside of manual cover)
In USA:
Toll Free: 877-JLG-SAFE (877-554-7233)
Outside USA:
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]
For:
• Accident Reporting
• Product Safety Publica-
tions
• Current Owner Updates
• Questions Regarding
Product Safety
• Standards and Regulations
Compliance Information
• Questions Regarding Special
Product Applications
• Questions Regarding Prod-
uct Modifications

FOREWORD
d31215057
REVISION LOG
Original Issue A - November 5, 2019
Revision B - June 26, 2020
Revision C - August 26, 2020

31215057 i
TABLE OF CONTENTS
SECTION - 1 - SAFETY PRECAUTIONS
1.1 GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
1.2 PRE-OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Operator Training and Knowledge . . . . . . . . . . . . . . . . . 1-1
Workplace Inspection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Machine Inspection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
1.3 OPERATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Trip and Fall Hazards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Electrocution Hazards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Tipping Hazards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
Crushing and Collision Hazards . . . . . . . . . . . . . . . . . . 1-10
1.4 TOWING, LIFTING, AND HAULING . . . . . . . . . . . . . . . . . . . . 1-11
1.5 MAINTENANCE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11
Maintenance Hazards. . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11
Battery Hazards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12
SECTION - 2 - USER RESPONSIBILITIES, MACHINE PREPARATION,
AND INSPECTION
2.1 PERSONNEL TRAINING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Operator Training . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Training Supervision . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Operator Responsibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Machine Familiarization. . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
2.2 PREPARATION, INSPECTION, AND MAINTENANCE . . . . . 2-2
Pre-Start Inspection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Walk-Around Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
Function Check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
SkyGuard Function Test. . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
2.3 OSCILLATING AXLE LOCKOUT TEST (IF EQUIPPED). . . . 2-11
SECTION - 3 - MACHINE CONTROLS AND INDICATORS
3.1 GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
3.2 CONTROLS AND INDICATORS . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Ground Control Station . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
Platform Station . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13
Platform Control Indicator Panel . . . . . . . . . . . . . . . . . 3-19
SECTION - 4 - MACHINE OPERATION
4.1 DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
4.2 HYDRAULIC SYSTEM WARM UP. . . . . . . . . . . . . . . . . . . . . . . 4-1
4.3 ENGINE OPERATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Starting Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Shutdown Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
Air Shutoff Valve (ASOV) (If Equipped). . . . . . . . . . . . . . 4-3
Fuel Reserve / Shut-Off System. . . . . . . . . . . . . . . . . . . . . 4-4
4.4 DIESEL PARTICULATE FILTER (IF EQUIPPED) . . . . . . . . . . . 4-5
Standstill Cleaning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Maintenance Standstill Cleaning Initiation Methods 4-7
Canceling Maintenance Standstill . . . . . . . . . . . . . . . . . . 4-7
Unsuccessful Cleaning Event. . . . . . . . . . . . . . . . . . . . . . . 4-8
DPF Filter Replacement due to Ash Load . . . . . . . . . . . 4-8
4.5 BOOM OPERATING CHARACTERISTICS & LIMITATIONS4-12
Capacities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12
Envelope Control System . . . . . . . . . . . . . . . . . . . . . . . . 4-12
Tower Path Control System . . . . . . . . . . . . . . . . . . . . . . 4-13

ii 31215057
TABLE OF CONTENTS
Automatic Main Boom Control System . . . . . . . . . . . . 4-14
Slow Down System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14
Controlled Angle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14
Swing Speed Proportioning. . . . . . . . . . . . . . . . . . . . . . . 4-15
Platform Load Sensing System (LSS). . . . . . . . . . . . . . . 4-15
Stability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15
4.6 AUXILIARY POWER OPERATION . . . . . . . . . . . . . . . . . . . . . 4-19
4.7 CAPACITY SELECT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-19
4.8 TRAVELING (DRIVING). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-21
Traveling Forward and Reverse . . . . . . . . . . . . . . . . . . . 4-22
Traveling on a Grade . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-24
4.9 STEERING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-24
4.10 EXTENDING THE AXLES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-24
4.11 PLATFORM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-24
Platform Level Adjustment . . . . . . . . . . . . . . . . . . . . . . . 4-24
Platform Rotation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-25
4.12 BOOM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-25
Swinging the Boom . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-25
Raising and Lowering the Main Boom . . . . . . . . . . . . . 4-26
Telescoping the Main Boom . . . . . . . . . . . . . . . . . . . . . . 4-26
Tower Lift . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-26
Swinging the Jib . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-26
4.13 FUNCTION SPEED CONTROL . . . . . . . . . . . . . . . . . . . . . . . . 4-26
4.14 MACHINE SAFETY SYSTEM OVERRIDE (MSSO)
(IF EQUIPPED) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-26
4.15 SKYGUARD OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-27
SkyGuard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-27
SkyGuard - SkyLine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-27
SkyGuard - SkyEye. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-28
SkyGuard Function Table . . . . . . . . . . . . . . . . . . . . . . . . . 4-28
4.15 EMERGENCY TOWING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-29
4.16 SHUT DOWN AND PARK. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-30
4.17 LIFTING AND TIE DOWN. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-30
Lifting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-30
Tie Down . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-31
4.18 STOWING THE JIB FOR TRANSPORT. . . . . . . . . . . . . . . . . . 4-31
SECTION - 5 - EMERGENCY PROCEDURES
5.1 GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
5.2 INCIDENT NOTIFICATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
5.3 EMERGENCY OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Operator Unable to Control Machine. . . . . . . . . . . . . . . 5-1
Platform or Boom Caught Overhead or Boom Move-
ment Prevented by Boom Control System . . . . . . . . 5-2
5.4 EMERGENCY TOWING PROCEDURES. . . . . . . . . . . . . . . . . . 5-2
5.5 MACHINE SAFETY SYSTEM OVERRIDE (MSSO)
(IF EQUIPPED). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
SECTION - 6 - ACCESSORIES
6.1 FALL ARREST PLATFORM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
Safety Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
6.2 PIPE RACKS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4
Capacity Specifications (Australia Only) . . . . . . . . . . . . 6-4
Safety Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4
Preparation and Inspection . . . . . . . . . . . . . . . . . . . . . . . . 6-5
Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5

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TABLE OF CONTENTS
6.3 SKYCUTTER™. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6
Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6
Accessory Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7
Generator Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7
Preparation and Inspection . . . . . . . . . . . . . . . . . . . . . . . . 6-7
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7
6.4 SKYGLAZIER™ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8
Capacity Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8
Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-9
Preparation and Inspection . . . . . . . . . . . . . . . . . . . . . . . . 6-9
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-9
6.5 SKYPOWER™ 7.5 KW AND GENERATOR 4 KW . . . . . . . . . 6-10
Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-10
Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-11
Preparation and Inspection . . . . . . . . . . . . . . . . . . . . . . 6-11
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-11
6.6 SKYWELDER™ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-11
Accessory Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-12
Generator Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-12
Welding Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-12
Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-13
Preparation and Inspection . . . . . . . . . . . . . . . . . . . . . . 6-13
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-13
6.7 SOFT TOUCH. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-14
6.8 SKYSENSE™ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-14
Preparation and Inspection . . . . . . . . . . . . . . . . . . . . . . 6-15
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-16
SkySense Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-18
Override Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-18
SkySense Coverage Areas. . . . . . . . . . . . . . . . . . . . . . . . 6-19
6.9 BOLT-ON EXTERNAL FALL ARREST . . . . . . . . . . . . . . . . . . . 6-20
Inspection Before Use . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-21
SECTION - 7 - GENERAL SPECIFICATIONS & OPERATOR
MAINTENANCE
7.1 INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
7.2 OPERATING SPECIFICATIONS & PERFORMANCE DATA . 7-1
Dimensional Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3
Capacities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4
Engine Data - Deutz 2011 . . . . . . . . . . . . . . . . . . . . . . . . . 7-4
Engine Data - Caterpillar . . . . . . . . . . . . . . . . . . . . . . . . . . 7-5
Hydraulic Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-6
Major Component Weights . . . . . . . . . . . . . . . . . . . . . . . . 7-9
7.3 OPERATOR MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . 7-16
7.4 TIRES & WHEELS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-30
Tire Damage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-30
Tire Replacement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-31
Wheel and Tire Replacement. . . . . . . . . . . . . . . . . . . . . 7-31
Wheel Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-31
7.4 SUPPLEMENTAL INFORMATION ONLY APPLICABLE TO CE
MACHINES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-33
EC Declaration of Conformity . . . . . . . . . . . . . . . . . . . . 7-34
SECTION - 8 - INSPECTION AND REPAIR LOG

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