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Mercedes Benz Truck R 320 BLUETEC Technical LI91-10_P-054832 Date: 121127 Interior - Electric Seat Noises

Mercedes Benz Truck R 320 BLUETEC Technical LI91-10_P-054832 Date: 121127
Interior - Electric Seat Noises
Noises from electric seat fore/aft adjustment or fore/aft adjustment nonfunctional
Topic number LI91.10-P-054832
Version 1
Design group 91.10 Front seats
Date 11-27-2012
Validity Model series 164 and 251 with fully electric seat adjustment
Reason for change
Complaint:
1. Noises when operating electric seat fore/aft adjustment
2. Electric fore/aft adjustment nonfunctional
Cause:
1. Frictional vibrations along fore/aft adjustment shaft
2. Motor detached owing to mechanical damage to electric motor retaining plate
Remedy:
Replacement of adjustment motor, shafts and electric motor retaining plate of relevant seat.
Instructions for replacement of electric motor with electric motor retaining plate:
1. Move seat to forwardmost position
2. Remove seat cushion as per work instructions
Mercedes Benz Truck R 320 BLUETEC
Page 483
3. Detach plastic rails used to mount control unit (Pic1)
4. Disconnect electric motor plug contact
5. Remove bolts T40 securing electric motor retaining plate (Pic2)
Mercedes Benz Truck R 320 BLUETEC
Page 484
6. Push out electric motor upward (Pic3)
7. Remove electric motor
8. Pull shafts out of rails using pliers
Important:
To ensure that the two rails remain parallel, do not twist the shafts and do not move the rails mechanically
9. Remove electric motor retaining plate
10. Position new electric motor retaining plate and screw in new bolts by a few threads
11. Insert shafts all the way into rails.
Important:
Do not turn the shafts by hand.
12. Attach rubber mounts to new electric motor
13. Attach electric motor to short shaft first (Pic4)
Note:
The electrical connection must always point upward.
Mercedes Benz Truck R 320 BLUETEC
Page 485
14. Attach rubber cap to long shaft and insert long shaft at electric motor
Mercedes Benz Truck R 320 BLUETEC
Page 486
15. Secure shaft and electric motor on retaining plate (Pic5-7)
16. Tighten bolts securing electric motor retaining plate to 25Nm
17. Assemble remaining components in reverse order
Attachments
Symptoms
Parts
Work units
Mercedes Benz Truck R 320 BLUETEC
Page 487
WIS-References

Labels

Labels:
Location: State Hwy J, Prairie Home, MO 65068, USA

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