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Bishamon UNILIFT UNI-20 - User Manual

Bishamon UNILIFT UNI-20
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SERVICE
MANUAL
MANUAL
SERVICE
MANUAL
MANUAL
Model UNI-20
UNILIFT
PALLET TRANSPORTER & POSITIONER
TM
Patents Pending
For Serial Numbers 1110803 and Earlier

Table of Contents

Questions and Answers

  • C
    calvinfarmerAug 1, 2025
    How to fix Bishamon Forklifts when the forks won't raise and the pump won't run?
    • D
      Deborah BrownAug 1, 2025
      If the forks on your Bishamon Forklifts won't raise and the pump isn't running, it could be due to a few reasons. First, check if there is electrical power by charging the batteries. Also, check the fuses and inspect the wiring and connections.
  • D
    dakota68Aug 5, 2025
    What to do if Bishamon UNILIFT UNI-20 Forklifts forks will not lower?
    • D
      Daniel MillerAug 5, 2025
      If the forks on your Bishamon Forklifts are stuck and won't lower, there are several potential causes. Start by checking for any obstructions in the fork carriage and remove them. Inspect the lower solenoid valve for any malfunctions and clean, repair, or replace it as necessary. Also, check the switch and wiring for faults, replacing the switch and/or checking the wiring. Other possible causes include a broken constant force spring (replace the spring), an obstruction in the flow limiting valve (clean, repair, or replace the valve), or a non-standard or damaged pallet (replace the pallet).
  • J
    Jack RossAug 9, 2025
    Why Bishamon UNILIFT UNI-20 forks will not raise but the pump is running?
    • G
      gregoryloweAug 9, 2025
      If the pump is running but the forks on your Bishamon Forklifts still won't raise, it might be due to: * The load being too heavy, causing the relief valve to operate; reduce the load. * Low hydraulic oil level; add oil to the hydraulic reservoir. * A raise solenoid valve that will not close; clean, repair, or replace the valve. * A lower solenoid valve held open; clean, repair, or replace the valve.
  • J
    Jacob Rodriguez Jr.Aug 13, 2025
    What to do if Bishamon UNILIFT UNI-20 forks will not stay up?
    • O
      owrightAug 14, 2025
      If the forks on your Bishamon Forklifts are not staying elevated, it could be due to a lower solenoid valve being held open or a check valve being held open. In either case, you should clean, repair, or replace the valve.
  • C
    caseydavidAug 18, 2025
    How to troubleshoot Bishamon UNILIFT UNI-20 Forklifts outriggers that won't retract?
    • T
      Thomas HubbardAug 18, 2025
      If the outriggers on your Bishamon Forklifts won't retract, check for any obstructions and remove them. If there are no obstructions, the issue might be a faulty outrigger actuator, which would need to be replaced. Also, consider checking the batteries and replacing them if they are defective.
  • J
    Jack MurphyAug 22, 2025
    Why Bishamon UNILIFT UNI-20 outriggers will not deploy?
    • T
      terrellbelindaAug 22, 2025
      If the outriggers on your Bishamon Forklifts are not deploying, first check for any obstructions preventing their movement and remove them. If there are no obstructions, the problem could be a faulty outrigger actuator, which would need replacement. Another potential cause is a non-standard or damaged pallet, which should also be replaced.
  • L
    Lori HughesAug 27, 2025
    How to fix Bishamon UNILIFT UNI-20 batteries that will not charge?
    • G
      Gary TaylorAug 27, 2025
      If the batteries on your Bishamon Forklifts are not charging, the first thing to check is the charger fuse; replace it if it's blown. Also, check for any loose or corroded connections and repair them.

Summary

GETTING STARTED

OPERATOR SAFETY

Guidelines for safe operation by trained personnel.

SAFETY DEFINITIONS

Definitions of DANGER, WARNING, and CAUTION hazard levels.

SAFETY GUIDELINES

DANGER Precautions

Immediate hazards resulting in severe injury or death.

WARNING Precautions

Hazards that could cause severe injury or property damage.

CRUSH AND PINCH POINT HAZARDS

Hazard Location Identification

Diagram showing locations of crush and pinch point hazards.

OPERATOR CONSOLE FUNCTIONS

Control Button Operation

How to use the UP and DOWN buttons for lift control.

OUTRIGGER LED INDICATORS

OUTRIGGER AND CHARGER INDICATORS

Outrigger Mid-Travel and Obstruction

LEDs for outriggers stopped mid-travel or blocked.

OPERATING INSTRUCTIONS

OPERATION MODES

Pallet Jack Mode

Instructions for using the UniLift as a pallet jack.

Stacker Mode Operation

Instructions for using the UniLift in stacker mode for lifting.

ADVANCED STACKER OPERATIONS

Outrigger Obstruction Issues

Troubleshooting outrigger extension/retraction problems.

ROUTINE MAINTENANCE

DAILY INSPECTION

WEEKLY INSPECTION AND CHECKS

DETAILED INSPECTION AND MAINTENANCE

DETAILED MAINTENANCE SCHEDULE

Hydraulic Oil and Spring Replacement

Replacement schedule for hydraulic oil and constant force springs.

2 YEAR;5000 CYCLE MAINTENANCE

TROUBLESHOOTING

Common Problems and Solutions

A guide to common issues and their resolutions.

Bishamon UNILIFT UNI-20 Specifications

General IconGeneral
BrandBishamon
ModelUNILIFT UNI-20
CategoryForklifts
LanguageEnglish