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JLG X770AJ-X26JP - User Manual

JLG X770AJ-X26JP
107 pages
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Supplement Manual
Models
X390AJ-X14J
X550AJ-X19J
X700AJ-X23J
X370AJ-X13JP
X430AJ-X15JP
X500AJ-X17JP
X600AJ-X20JP
X770AJ-X26JP
X1000AJ-X33JP
*See inside cover for serial break
information
31215460
October 14, 2019
Go to Discount-Equipment.com to order your parts

Table of Contents

Questions and Answers

  • S
    Sandra WilsonAug 17, 2025
    What to do if my JLG X770AJ-X26JP Boom Lifts battery charger shows error code 252 (short-circuit in output)?
    • D
      Danielle CastilloAug 17, 2025
      If the battery charger displays error code 252, indicating a short-circuit in the battery charger output, turn off the battery charger and resolve the short-circuit at the output.
  • C
    Casey RoweAug 19, 2025
    What to do if my JLG Boom Lifts battery charger shows error code 244 because the mains voltage is too low?
    • T
      tfordSep 12, 2025
      If the battery charger shows error code 244, indicating that the mains voltage is lower than the maximum operating range tolerance, make sure the mains voltage is within the correct operating parameters. The battery charger won’t start charging until the mains voltage returns within the normal operating range.
  • H
    househeatherAug 22, 2025
    What to do if my JLG X770AJ-X26JP Boom Lifts battery charger shows error code 240 because digital input is open?
    • G
      Gabriel FrancoAug 22, 2025
      If the battery charger displays error code 240, indicating that the digital input is open, the battery charger will stop charging until the digital input closes. Close the digital input to resolve this issue.
  • A
    Anthony ShafferAug 25, 2025
    What to do if JLG X770AJ-X26JP Boom Lifts show Inverter Error Code 8 - Watch Dog?
    • R
      rthompsonAug 26, 2025
      If the JLG Boom Lifts shows Inverter Error Code 8 - Watch Dog, check the control connections and continuity of the electric motor. If they are OK, replace the inverter, because the inverter is not able to activate or turn off the electric motor.
  • E
    Emily MoonAug 27, 2025
    What to do if JLG Boom Lifts show Inverter Error Code 19 - Logic failure #1?
    • O
      Omar CastanedaAug 27, 2025
      If JLG Boom Lifts shows Inverter Error Code 19 - Logic failure #1, it is usually a temporary anomaly due to a working condition, caused by an overvoltage or a sudden voltage drop. However, if the anomaly persists, replace the inverter.
  • J
    Jessica ArmstrongAug 30, 2025
    What to do if JLG X770AJ-X26JP show Inverter Error Code 16 - Aux output KO?
    • A
      angela41Aug 30, 2025
      If JLG Boom Lifts shows Inverter Error Code 16 - Aux output KO, it is usually a temporary anomaly due to a working condition, caused by electromechanical brake problem. In case the anomaly persists replace the inverter.
  • D
    dunlapbrianSep 2, 2025
    What to do if JLG Boom Lifts show Inverter Error Code 8 - Flash Checksum?
    • J
      Jeremy KellySep 2, 2025
      If JLG Boom Lifts shows Inverter Error Code 8 - Flash Checksum, replace the inverter, because the software is corrupted or the inverter is damaged.
  • J
    jleeSep 5, 2025
    What to do if JLG X770AJ-X26JP Boom Lifts show Inverter Error Code 13 - Eeprom KO?
    • J
      joshua02Sep 5, 2025
      If JLG Boom Lifts shows Inverter Error Code 13 - Eeprom KO, replace the inverter, because there is a hardware or software problem in Eeprom.
  • V
    Veronica MaldonadoSep 7, 2025
    What to do if JLG X770AJ-X26JP Boom Lifts show Inverter Error Code 18 - Logic failure #2?
    • A
      Alyssa BrownSep 7, 2025
      If JLG Boom Lifts shows Inverter Error Code 18 - Logic failure #2, replace the inverter, because there is a fault in the inverter.
  • M
    Mr. Joel Valdez MDSep 10, 2025
    What causes BMS fault code 02 - Unexpected Voltage in JLG X770AJ-X26JP?
    • C
      Carla HensleySep 12, 2025
      BMS fault code 02, "Unexpected Voltage," in JLG Boom Lifts is caused by the BMS failing to identify one cell or being unable to connect it to the discharging resistance. When one cell reaches 3650 mV, the BMS will disconnect the lithium pack, triggering this error.

Summary

SECTION A. INTRODUCTION - MAINTENANCE SAFETY PRECAUTIONS

General Safety Precautions

Provides essential safety guidelines for operating and maintaining the Lithium ION system and machine.

Revision Log

Details the history of changes and updates made to the manual, starting with the original issue.

SECTION 1. SPECIFICATIONS

1.1 Capacities

Outlines the various lithium system models and their corresponding battery pack and machine arrangements.

1.2 Battery Pack Configuration Layout

Illustrates the physical arrangement of components within the battery pack for different models.

SECTION 2. SERVICE PROCEDURE

2.1 12 V DC Power Distribution

Explains the 12V power system and its components, essential for machine operation and charging.

2.2 Operation of the Power Pack Components

Describes how the various components of the power pack work together during machine operation.

2.3 Battery Management System (BMS)

Details the functions and operation of the BMS, crucial for monitoring and managing Li-Ion battery health.

2.4 Lithium Battery Cell

Describes the characteristics, specifications, and features of individual lithium battery cells used in the packs.

2.5 Cooling System

Explains the system designed to manage the temperature of the battery pack to ensure optimal performance.

2.6 Heater System (3 rd Generation)

Details the function and operation of the heating system used in 3rd generation battery packs.

2.7 Lithium Ion Battery Pack Charger

Covers the specifications and operation of the battery charger responsible for charging the Li-Ion battery packs.

2.8 Relays

Details the function of various relays used within the battery system for controlling power and signals.

2.9 Emergency Electric Motor Override

Provides a procedure for activating the electric motor in emergency situations by bypassing safety systems.

SECTION 3. TROUBLESHOOTING AND FAULT CODES

3.1 Fault Codes

Lists and explains various fault codes generated by the battery charger, inverter, and BMS for diagnostics.

BMS Fault Codes (1 st and 2 nd Generation Battery Pack)

Specifically details error codes related to the Battery Management System for 1st and 2nd generation packs.

Inverter Fault Codes

Lists and describes fault codes associated with the inverter, along with corrective actions.

Battery Charger Fault Codes (38;48;72;83 V Battery Pack)

Details fault codes specific to the battery charger for 38V, 48V, 72V, and 83V battery packs.

3.2 Battery System Troubleshooting (1 st & 2 nd Gen)

Offers guidance for diagnosing and resolving issues specifically with the 1st and 2nd generation battery systems.

3.3 RamHino Diagnostic Tool

Explains how to use the RamHino diagnostic tool for detailed analysis of the lithium battery pack status.

JLG X770AJ-X26JP Specifications

General IconGeneral
BrandJLG
ModelX770AJ-X26JP
CategoryBoom Lifts
LanguageEnglish

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