2-4
BEFORE REPAIR
INSPECTION
1. Insulation resistance measurement
Note:
Carry out the measurement before inspecting the
traction/lifting units.
(1)Disconnect the battery plug and measure the
resistance between the plug and the battery body
Some components can be inspected after they are removed from the vehicle, other ones can only be
inspected as installed on the vehicle.
The logic units must be inspected on the vehicle since the battery voltage must be applied.
This explanation is mainly for inspection of the controller as removed from the vehicle.
Removal procedure
• Overhauling the control panels is rarely necessary. In most cases, failed parts are replaced after
finding out the cause of the failure from inspection. Therefore, make sure to repair correctly by
referring to the figures of configuration and assembly.
• Do not disassemble traction / lifting logic units and the other main controllers, as they should be
replaced in a form of group not disassembled.
Caution for part replacement
• Observe the specified bolts tightening torque. An insufficient or excessive tightening torque may
cause other failure.
• When disconnecting the bars and harness, record the connecting location and place tags. When
connecting them again, be sure to confirm with the records and tags to prevent incorrect connection.
Incorrect connection may cause other failure.
• Always apply new silicon grease when reassemble parts originally coated with this material.
Otherwise, overheating may occur.
• After installation, check there is no interference of the bar and harness connection with other portion.
Measurement terminals Logic units side of battery plug-body
Standard:
The resistance value depends greatly on the vehicle operating state, place
and weather.
(Approx.1MΩ or more)
https://www.forkliftpdfmanuals.com/
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