SI15.40-W-0002A | Service Information: Belt pulley at alternator | 16.6.11 |
ENGINES 902.9 in MODEL 957
ENGINES 902.9 in MODEL 970, 974
ENGINES 904.9 in MODEL 375.1, 970, 972, 975, 976
ENGINES 906.9 in MODELS 375.3, 950.5 /6, 952.5 /6, 953.6, 954.5, 957
ENGINES 906.9 in MODEL 970, 972, 974, 975, 976
ENGINES 926.9 in MODEL 950.5 /6, 952.5 /6, 953.6, 954.5, 957
Modification notes
2.3.09 | Value changed: Nut, belt pulley to alternator, Nm | Engine 904.9, 906.9 as of end no.190708 engine 900.9, 902.9 Engines 924.9, 926.9 |
As of engine end no. 364 937 a modified belt pulley is installed on the alternator on the above-mentioned engines.
Notes on replacing the belt pulley or alternator
When replacing the belt pulley or the alternator, it is necessary to check the diameter of the old belt pulley.
- Old belt pulley: Outer diameter 75 mm
- Modified belt pulley: Outer diameter 61 mm
The belt pulley to be installed must always have the same diameter as the belt pulley removed, otherwise problems will occur and/or fault code 1 40 41 will be displayed in the FR/FMR system.
The nut and the snap ring must as a rule be replaced every time the belt pulley is removed, no matter whether or not a new belt pulley is installed.
Belt pulleys displaying even slight chamfering caused by wear must not be reinstalled.
The specified tightening torques MUST be applied in all cases.
If, after the new alternator is installed, fault code
1 40 41 is displayed, the following operations must be performed:
- Install correct belt pulley.
- Perform teach-in process "Reteach terminal W ratio" see work instructions (SM15.40-W-0003A) in WIS.
Effective immediately, alternators supplied by GLC Germersheim for all engine model series will come without belt pulleys.
Alternator
Number | Designation | Engines | Engines | Engine 924.9, 925.9, 926.9 | ||
BA15.40-N-1004-01B | Nut, belt pulley to alternator | M161.5 | Nm | 80 | 90 | 90 |
M271.5 | Nm | 150 | - | - | ||
Parts ordering notes
Part no. | Designation | Quantity |
A000 150 01 60 | Outer diameter of belt pulley: 75 mm (old) | 1 |
A906 155 17 15 | Outer diameter of belt pulley: 61 mm (modified) | 1 |
A005 990 41 51 | Nut | 1 |
A000 990 53 48 | Snap ring | 1 |