Engine Shutdown Device / Belt Tensioner; M 20.00 Engine Shutdown Device - Hatz 2-4L30 Workshop Manual

M 20.00 Engine shutdown device / belt tensioner
- 20 - 21 - 39 -
Preparations:
Encapsulated engines:
– Take off the cover for the air guide
housing and front impeller.
Non-encapsulated engines
– Take off belt guard, if fitted.
Removing:
– Press back the tensioning roller and at-
tach the locking device - 36 - (Fig. 149).
– Take out screws (150/3) with spring
washers and remove the drive pulley
(150/4)(the drive pulley is not fitted from
year of manufacture 1985 onwards).
– Pull the belt pulley (150/5) out of its
centering mount and take it off together
with the Poly-V belt.
– Detach the oil line (150/1) and remove
the 3 machine screws (150/2) with
spring washers.
– Detach the fixation (150/7) at the coo-
ling fan, noting the installed shims.
– Take off the engine shutdown device
(150/6).149
150
3
L / M . . 09.96