C 4.74, Operating instructions, Troubleshooting guide – Holder C-Trac 4.74 User Manual

Page 147

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C 4.74

Operating instructions

146

149 443

Troubleshooting guide

Problem

Cause

Remedy

Many malfunctions

Some parameters out of adjustment

Load “default settings” with Opus or
PC software

Buttons respond too slowly

Set incorrectly to “slow”

Can be set to “fast” with Opus or PC
software

Buttons “locked” instead of “active”

Set incorrectly

Can be set with Opus or PC software

Hydraulic implement cushioning
inoperative

Turned off

Electronic pressure sensor defective

Specified pressure too low

Function switched to rear power lift

Turn on with keyboard

Replace

Change on electric pressure sensor

Set to “Front” with Opus

Implement cushioning pulsing a lot

Specified pressure and hysteresis
too low or too high

Implement weight too low

Hydraulic pressure accumulator
defective, no cushioning noticeable

Change pressure sensor settings

Turning off the implement cushioning

Renew pressure accumulator

Position control inoperative

Actual value transmitter (angle
sensor) defective

Angle sensor adjusted incorrectly

Angle sensor with incorrect range
setting

Renew

Readjust acc. to specifications

Increase higher value with specified
value potentiometer, decrease lower
value

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