Removing and installing poly V-belt - RA13001041200X(13-1200)
Preceding work:
Viscous fan clutch removed (20-3120) .
Operation no. of operation texts and work units or standard texts and flat rates
13-1202 - 13-4001
1st version with external damper
| Bolt (16) | slacken approx. 1/4 - 1/2 turns. |
| Tensioning nut (5) | slacken (turn to the left). |
| Poly V-belt (27) | take off. |
| Belt pulley | examine for signs of damage and dirt, replace if necessary (e. g. worn bearing points of tensioning device, dents in belt pulleys etc.). |
| Setting pointer (13) | turn to marking (1) (arrow). |
| Poly V-belt | fit on, beginning at tensioning pulley (running diagrams see 13-1240 ). Do not use belt wax or similar products except, if noise problems exist, spray poly V-belt lubricant 000 989 19 60 onto belt running surface and onto back of belt. |
| Tensioning nut (5) | tension until setting point (13) is aligned with the marking (2) (arrow). |
| Bolt (16) | tighten (75 Nm). |
| Seat of belt on belt pulleys | examine. |
| Securing bolt of tensioning device | 75 |
Special tool
Preceding work:
Fan shroud removed (20-3400)
Viscous fan clutch removed (20-3120) .
Operation no. of operation texts and work units or standard texts and flat rates
13-1202 - 13-4001
2nd version with internal damper as of September 1994
| Tensioning pulley (7) | swivel clockwise at nut (1) waf 15. |
| Poly V-belt (27) | take off. |
| Profiles of belt pulley | examine for signs of damage and dirt; replace if necessary (e.g. worn bearing points of tensioning device, damage to belt pulleys etc. |
| Poly V-belt (27) | fit on beginning at tensioning pulley (7); swivel tensioning pulley (7) clockwise at nut (1) for this step (for running diagram see 13-1240 ). Do not use belt wax or similar products.
NOTE:
The different versions of the tensioning pulley (7) Ø with 92 or Ø 80 mm require different lengths of poly V-belts (13-1240) . If a 20 mm shorter poly V-belt is installed together with a smaller tensioning pulley (7) (Ø 80 mm) when performing repairs, the belt length should be entered on the last page of the Maintenance Booklet and the Owner's Manual revised accordingly. |
Use of tensioning device with internal damper (2nd version)
as of engine number
104.941 10 004 059
104.941 12 034 967
104.942 10 005 790
104.942 12 048 697
104.943 10 000 901
104.943 12 003 621
104.944 10 000 740
104.944 12 007 448
104.945 10 000 001
104.945 12 000 001
104.991 12 009 986
104.992 10 004 357
104.992 12 072 237
104.994 12 031 210
104.995 12 000 001
104.996 10 000 001
104.996 12 000 001