How To Use This Troubleshooting Manual
GENERAL INSTRUCTIONS AND SAFETY
INFORMATION
WARNING
DO NOT add to or modify the lift truck. Any modi-
fication that affects the safe operation of the truck
cannot be undertaken without written authoriza-
tion of the Hyster company.
Any change to the lift truck, the tires, or its equip-
ment can change the lifting capacity. The lift truck
must be rated as equipped and the nameplate
must show the new rating capacity.
WARNING
The technician must be aware of, and follow, all
general safety precautions that are published in
the Operating Manual and that are posted as
Safety Decals on and in the lift truck.
Before starting, the technician should be familiar with
certain policies, requirements, and instructions used
in the troubleshooting procedures. Using the trouble-
shooting procedures correctly helps the technician to
perform the procedure safely and prevents damage to
the machine and support equipment.
HOW TO USE DIAGNOSTIC
TROUBLESHOOTING MANUAL
Manual Layout:
Sections: The manual is divided into eight sections,
each representing a major system, functional area, or
specific operation on the lift truck.
• 9010 – Operational Diagnostic Procedures
• 9025 – Traction Motor
• 9030 – Electrical System
• 9035 – Drive Axle/Unit
• 9050 – Hydraulic Systems
• 9060 – Operator's Station
• 9070 – Front End (Mast) and Chassis
• 9080 – Supplementary Data
Groups: The sections of the manual are further sub-
divided into groups, where applicable, that identify
specific functions, operating criteria, or maintenance
tasks.
• 01 – Introduction to the Troubleshooting Man-
ual
• 03 – General Maintenance/Diagnostic Data
• 05 – Operational Checkout
• 10 – Principles of Operation
• 20 – Diagnostic Trouble Codes
• 30 – Observed Symptoms
• 33 – Observed Symptoms – Gear Pump
• 43 – Test and Adjustments – Gear Pump
• 50 – Abbreviation and Acronyms
• 55 – Icons and Graphics
• 70 – Fault Mode Indicator Reference
For Diagnostic Trouble Code listings, see Electrical
System, General Maintenance and Diagnostic Data,
Diagnostic Trouble Codes, Page 9030-03-6.
NOTE: Not all groups will appear in all sections.
Supplementary Data: The supplementary data sec-
tion of the manual includes information and data that
apply to many sections or groups and is stored here
for access by all users of the manual. This data in-
cludes, but is not limited to:
• Abbreviations and Acronyms
• Special Tools List
• Fault Mode Indication Reference Table
• Supplier Specification Data
How To Use This Troubleshooting Manual Diagnostic Troubleshooting Manual
Check the Service Manual section in Hypass Online for possible updates and check pertinent Grams
ii Confidential/Proprietary - Do Not Copy or Duplicate
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