Checking V-belt tension – Rock-
ford S370 fan clutch
1.
Switch on belt tension tester.
2.
Hold measuring tip of belt tension tester
over belt drive. Tap drive belt (arrow) with a
suitable tool.
3.
Hold belt tension tester over belt drive until the measured value is indicated.
Initial assembly at MTU
Initial operation with fan
Re-tensioning
36 Hz ±5 Hz
49 Hz ±2 Hz
44 Hz ±2 Hz
Adjusting drive belt tension
1.
Release screws (2) until fan clutch can be
moved.
2.
Tighten stud (1) until the required frequen-
cy is achieved.
3.
For Rockford S270 fan clutch:Tighten screws (2) to specified tightening torque.
Name
Size
Type
Lubricant
Value/Standard
Screw
M12x60
Tightening torque
100 Nm +10 Nm
4.
For Rockford S370 fan clutch: Tighten screws (2) to specified tightening torque.
Name
Size
Type
Lubricant
Value/Standard
Screw
M16x80
Tightening torque
270 Nm +10 Nm
M015695/03E 2013-03
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TIM-ID: 0000040744 - 001