Disassembling and assembling backrest frame
DISASSEMBLING AND ASSEMBLING PROCEDURE FOR BACKREST FRAME
| No. | Designation | Qty. | Removal | Installation |
|---|---|---|---|---|
| 7 | Screw | 2 | Unscrew screw on cross tube -10- . See Fig 1 . | |
| 8 | Bushing | 2 | ||
| 9 | Washer 12 x 19.5 x 0.5 | 2 | ||
| 10 | Cross tube | 1 | ||
| 11 | Oval-head screw M8 x 10 | 4 | Unscrew. | |
| 12 | Hexagon-head bolt Not installed on Type 986 | 2 | ||
| 13 | Seat frame | 1 | ||
| 14 | Backrest frame | 1 | Remove backrest frame from seat frame -13- . See Fig 1 . |
|
| 15 | Holder | 2 | ||
| 16 | Spring | 2 | Disengage spring from the holder -15-19- . See Fig 1 . | Engage spring in the spring-and-frame assembly -19-15- . See Fig 1 . |
| 17 | Holder | 4 | ||
| 18 | Spring | 4 | Disengage spring from the holder -17-19- . See Fig 1 . | Engage spring in the spring-and-frame assembly -19-17- . See Fig 1 . |
| 19 | Spring-and-frame assembly | 1 | ||
| 20 | Electric motor for backrest adjustment | 1 | See REMOVING AND INSTALLING ELECTRIC MOTOR FOR THE BACKREST ADJUSTMENT . | See INSTALLING ELECTRIC MOTOR FOR BACKREST ADJUSTMENT . |
| 21 | Cable retainer | 1 | Unclip. | Clip in. |
| 22 | Sheetmetal nut M5 | 4 | Pull off. | Push on. |
| 23 | Clamping washer | 2 | Undo. | Push on new clamping washer. |
| 24 | Fastening cable | 2 | Unclip fastening cable from the backrest shell and disengage on the swivel arm -27- . See Fig 1 . | Engage fastening cable on the swivel arm -27- . See Fig 1 . |
| 25 | Boost spring | 1 | Disengage boost spring -27- . See Fig 1 . | Engage boost spring -27- . See Fig 1 . |
| 26 | Screw | 2 | Unscrew. | |
| 27 | Swivel arm | 1 | Remove swivel arm. | Position swivel arm on the backrest frame -14-26- . See Fig 1 . |
| 28 | Rubber pads | 1 | Press out. | Press in. |
| 29 | Foam piece | 1 | Remove. | Insert. |
Motor for lumbar support
|
1 | See REMOVING LUMBAR ADJUSTMENT DEVICE FOR THE LUMBAR SUPPORT . | See INSTALLING LUMBAR ADJUSTMENT DEVICE FOR THE LUMBAR SUPPORT . |