Remove/install damper of backrest adjustment at seat frame for passenger seat

AR91.21-D-3500A

Remove/install damper of backrest adjustment at seat frame for passenger seat

05.12.2019

Model

906.657

with code P0E (Sprinter Tourer master code)

Model

906.657

with code P0F (Master code for Sprinter Tourer 19+1 Inland)

Model

906.657

with code P0G (Master code Sprinter Tourer 16+1)

Model

906.657

with code P0H (Master code Sprinter Tourer 19+1)

Model

906.657

with code PE4 (DCAA bus master code, Argen)

Model

906.657

with code PE5 (Mastercode, bus seats on raised base, Argen)

1

Passenger seat backrest

6

Bracket

11

Stop plates

2

Screw

7

Screw

12

Washer

3

Seat frame

8

Gas-filled strut

13

Nut

4

Adjuster lever

9

Screw

a

Dimension

5

Nut

10

Jack

 Warning

Risk of injury from fingers being pinched or jammed when working on gas struts under pressure

Only remove and install pneumatic springs when they are not under tension and when the components are properly secured.

AS00.00-Z-0012-01A

Topical note

Notes on carrying out repair work in the vehicle interior

AH68.00-N-0001-01S

Topical note

Notes on self-locking nuts and bolts

AH00.00-N-0001-01A

 

Remove/install

1

Remove respective passenger seat cushion

AR91.21-D-4502A

2

Remove passenger seat armrest and paneling

When removing the gas-operated strut (8) from a passenger seat backrest (1) in the center aisle.

AR91.21-D-3300B

 Do not remove mechanical components of armrest.

3

Remove adjustment lever (4)

AR91.21-D-3510A

4

Remove screw/bolt (7) at bracket (6)

5

Unscrew nut (5) from bracket (6)

 Nut, front damper bracket to seat frame base

*BA91.21-N-1023-01F

6

Remove screw (2)

 Installation: Align passenger seat backrest (1).

 Nut/bolt, seat backrest to seat frame base

*BA91.21-N-1008-01F

7

Lift (arrow) passenger seat backrest (1) and unscrew bolt (9)

 Counterhold bushing (10).

8

Remove bushing (10)

 To do this, press bushing (10) out of rear mount of gas-operated strut (8) and passenger seat backrest (1).

 Installation: Check bushing (10) for damage.

Depending on findings



Replace damaged bushing (10).

9

Lower passenger seat backrest (1)


Do not put load on passenger seat backrest (1) in this state.
Otherwise damage may occur.

10

Remove gas-operated strut (8) with bracket (6) from seat frame (3)

 To do this, slide out bracket (6) with gas-operated strut (8) sideways from front mount at seat frame (3) and remove.

11

Measure distance (a) from bracket (6) to gas-operated strut (8)

When replacing the gas-operated strut (8).

 Installation: Adjust bracket (6) to measured dimension (a) and secure with nut (13).
The mount on the bracket (6) must align with the mount on the gas-operated strut (8).

12

Unscrew nut (13) and bracket (6) from gas-operated strut (8)

When replacing the gas-operated strut (8).

 Installation: Do not tighten nut (13) yet.

13

Remove washer (12) and stop plates (11) from gas-operated strut (8)

When replacing the gas-operated strut (8).

 Installation: Observe correct sequence.

14

Install in the reverse order

 Passenger seats

Number

Designation

Model 906.6 with code P0E (Mastercode Sprinter Tourer 16+1 Inland) or code P0F (Mastercode Sprinter Tourer 19+1 Inland) or code P0G (Mastercode Sprinter Tourer 16+1) or code P0H (Mastercode Sprinter Tourer 19+1) or code PE4 (Mastercode Bus, DCAA, Argen) or code PE5 (Mastercode Bus, pedestal seating, Argen)

BA91.21-N-1008-01F

Nut/bolt, seat backrest to seat frame base

Nm

45

 Passenger seats

Number

Designation

Model 906.6 with code P0E (Mastercode Sprinter Tourer 16+1 Inland) or code P0F (Mastercode Sprinter Tourer 19+1 Inland) or code P0G (Mastercode Sprinter Tourer 16+1) or code P0H (Mastercode Sprinter Tourer 19+1) or code PE4 (Mastercode Bus, DCAA, Argen) or code PE5 (Mastercode Bus, pedestal seating, Argen)

BA91.21-N-1023-01F

Nut, front damper bracket to seat frame base

Nm

5