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CAT 988H Lift and and Tilt linkage position sensors not calibrating

Olori Joshua

Olori Joshua

Well-Known Member
Joined
Mar 5, 2020
Messages
120
Location
Abuja, Nigeria
Occupation
Heavy equipment technician
I am on the machine right now carrying out the tilt linkage position sensor calibration.
1. Was only able to pass the step one which is set the parking brake.
2. Got the attached error as I was racking back the bucket slowly as required by step two. The bucket has not rackback fully when I got the error, it was just in the middle from fully dump position to fully rackback position.

Could it be the sensor is bad?
But if I play with the sensor three pin connector by disconnecting it my ET will see it as voltage above normal 20250417_110127.jpg
 
Nige

Nige

Senior Member
Joined
Jun 22, 2011
Messages
38,524
Location
G..G..G..Granville.........!! Fetch your cloth.
Get into ET and monitor the tilt sensor position.
Temporarily remove the large arm that operates the sensor.
Have someone slowly rotate the sensor while you obersve on ET looking for change in duty cycle. (I am not sure if those sensors output a duty cycle in % or a sensor angle in degrees, but you'll find out soon enough.)

In your photo above, what was the text on the bottom RH side of the screen after "ERROR CODE 0002".?

May be a stupid question but are you sure the installed sensor is the correct Part Number.?
 
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