Repair manual GRAMMER seat suspension MSG95EAC – November 2012
Material no. 1 277 338
2.3 Troubleshooting – Locating the fault
Page 15 of 15
7 Deactivation of the emergency programme / reset to normal operation
Preconditions for fault diagnosis:
• See “Preconditions for fault diagnosis for each test”.
• The operation of the height adjustment has been inspected and found to be OK*.
• The pneumatic system has been inspected and found to be OK.
• The emergency programme is activated (two subsequent weight adjustment / levelling attempts have not been successful).
Step
no.
Inspect/operate Result/Specified status Troubleshooting
7.1
• The activated emergency programme is reset to normal
operation by means of a coded operation:
• Do not apply any load to the seat.
S = seconds, t = time
7.2 • Pull / press the handle / switch for height adjustment upwards
three times within 0.7 to 2 seconds according to the diagram
shown on the right (A) and then immediately press the handle /
switch for height adjustment downwards for 5 to 9 seconds
according to the diagram shown on the right (B).
Depending on the adjusted operating mode, the
deactivation will be acknowledged by the
compressor being started once or several times.
If the levelling still does not to start
automatically when load is applied to the
seat, replace sensor module (see
Chapter 3.9).
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