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JLG 800A - User Manual

JLG 800A
160 pages
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Operation and Safety Manual
ANSI
®
Original Instructions - Keep this manual with the machine at all times.
Boom Lift Models
800A
800AJ
S/N 0300183034 to
Present
3121627
November 5, 2018 - Rev I

Table of Contents

Other manuals for JLG 800A

Preview: Service And Maintenance Manual
Service And Maintenance Manual172 pages

Questions and Answers

  • S
    Stanley MorrowJul 27, 2025
    Why is my JLG 800A Boom Lifts system operating hot?
    • W
      walkertracyJul 27, 2025
      Your JLG Boom Lifts system might be running hot due to several reasons. It could be due to an insufficient amount of hydraulic fluid, which fails to meet the system's cooling demands. In this case, fill the reservoir to the proper level. Another cause might be a failing or obstructed heat exchanger, which also prevents adequate cooling. Make sure the heat exchanger is receiving enough air flow and is in good condition; repair or replace it if needed. Finally, a system relief valve that's unseated for too long or malfunctioning could cause overheating. Repair or replace any faulty relief valves and check that the machine's loads aren't too high.
  • C
    Christopher PowellAug 11, 2025
    How to fix excessive noise and vibration in JLG 800A?
    • K
      Kristen CohenAug 11, 2025
      Excessive noise and vibration in your JLG Boom Lifts can stem from several issues. Insufficient hydraulic fluid can cause cavitation, leading to system noise; ensure the reservoir is filled to the correct level and that oil supply to the motor is adequate and unobstructed. Trapped air in system lines or the motor can also cause cavitation; make sure all system lines and components are purged of air. A loose or incorrect shaft coupling can produce vibrations; verify the correct coupling is used and fits properly. Misaligned shafts create frictional vibration; ensure shafts are properly aligned. Finally, hydraulic oil viscosity above acceptable limits can cause cavitation; replace the hydraulic oil with the appropriate fluid for your operating conditions.

Summary

SECTION 1 - SAFETY PRECAUTIONS

PRE-OPERATION

Covers operator training, knowledge, and pre-operation checks.

Workplace Inspection

Details precautions to avoid hazards in the work area before and during operation.

Machine Inspection

Requirements for inspecting the machine before operation and safety device checks.

Trip and Fall Hazards

Precautions to prevent trip and fall hazards for platform occupants.

Electrocution Hazards

Information regarding electrical hazards and minimum approach distances.

Tipping Hazards

Hazards related to machine tipping due to slopes or surfaces.

Crushing and Collision Hazards

Precautions to prevent crushing and collision hazards during operation.

Battery Hazards

SECTION 2 - USER RESPONSIBILITIES, MACHINE PREPARATION, AND INSPECTION

PREPARATION, INSPECTION, AND MAINTENANCE

Pre-Start Inspection

Detailed checklist for performing the pre-start inspection.

FUNCTION CHECK

Procedures for checking all machine systems function properly.

SECTION 3 - MACHINE CONTROLS AND INDICATORS

Ground Control Console

Details and descriptions of controls on the ground console.

Ground Control Indicator Panel

Platform Console

Details and descriptions of controls on the platform console.

Platform Console Indicator Panel

SECTION 4 - MACHINE OPERATION

BOOM OPERATING CHARACTERISTICS AND LIMITATIONS

Stability

ENGINE OPERATION

Procedures for starting, operating, and shutting down the engine.

Starting Procedure

Step-by-step guide for starting the machine's engine.

Shutdown Procedure

Steps for safely shutting down and parking the machine.

TRAVELING (DRIVING)

Traveling Forward and Reverse

PLATFORM

Platform Level Adjustment

How to adjust the automatic self-leveling system of the platform.

BOOM

Raising and Lowering the Tower Boom

Procedures for raising and lowering the tower boom.

Raising and Lowering the Main Boom

Procedures for raising and lowering the main boom.

SHUT DOWN AND PARK

Steps for properly shutting down and parking the machine.

SECTION 5 - EMERGENCY PROCEDURES

EMERGENCY OPERATION

Procedures for emergency operation scenarios.

Operator Unable to Control Machine

Steps when the platform operator is pinned, trapped, or unable to operate.

Platform or Boom Caught Overhead

Procedures if the platform or boom becomes jammed or snagged.

SECTION 7 - GENERAL SPECIFICATIONS & OPERATOR MAINTENANCE

MAINTENANCE AND LUBRICATION

Guidelines for performing machine maintenance and lubrication tasks.

Oil Change w;Filter - Deutz D2011

Tire Replacement

Wheel Installation

JLG 800A Specifications

General IconGeneral
BrandJLG
Model800A
CategoryBoom Lifts
LanguageEnglish

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