Repair Manual MSG 90.6PG Commercial Vehicles, Omnibuses – November 2017
Material no. 1153450_c
2.4
Fault diagnosis
Page 3 of 16
TABLE OF CONTENTS
Step
no.
Inspect/operate
Result/specified status
Troubleshooting
1.4
WARNING
Risk of crushing!
The level control immediately pushes the
control disc for seat height adjustment forwards
and the seat moves up.
Hang out the Bowden pull wire for seat height
adjustment at the control disc for seat height
adjustment.
The seat moves up until the
maximum height is reached.
The seat remains in its original
position.
The seat does not move up.
Proceed with inspection
step no. 1.5.
Check the level control for
fixed valve tappets of the air
intake and air exhaust.
Replace the level control
(Chapter 3.38).
1.5
Hang in the Bowden pull wire for seat height
adjustment at the control disc for height
adjustment.
The seat moves back to its original
position.
The seat does not move back to its
original position.
Proceed with inspection
step no. 1.6.
Check the level control (see
inspection step 2.1).
