7.18.2 Battery-charging generator drive – Drive belt tension check
Preconditions
☑ Engine is stopped and starting disabled.
Special tools, Material, Spare parts
Designation / Use
Part No.
Qty.
Belt tension tester
Y4345711
1
Preparatory steps
1.
Remove guard cover.
2.
Check belt condition visually (→ Page 121).
Checking drive belt tension
1.
Fit measuring head (2) on belt-tension tester (3) and hit drive belt (1) with a suitable tool.
2.
Hold belt tension tester over belt drive until the measured value is displayed. For specifications, refer to
table below.
Application
Value for new drive belt
Value for used drive belt
Series 4000
92 Hz to 96 Hz
80 Hz to 84 Hz
3.
If the measured values deviate from the specifications above, adjust drive belt tension (→ Page 122).
MS150064/01E 2011-11 | Task Description | 123
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