Hatz 2-4L30, Workshop Manual

Page: 57 / 174

– Unscrew and remove the hex bolts
(22/1) at both sides.
– The two halves of the crankcase are se-
cured together with straight pins (23/1).
Drive these back with a hammer and a
suitable drift until they are flush with the
sealing face. Lift up the upper part of
the crankcase vertically: Fig. 23.
Note:
To simplify the loosening and lifting off of
the upper part of the crankcase, insert
two M 8 x 65 machine screws (retaining
screws of setting-down device) at the
timing end and two M 14 x 50 hex bolts
(used to secure connecting housing) at
the flywheel end in the holes provided.
– Lift the crankshaft out of the lower part
of the crankcase.
– Carefully warm the balancing weight
gearwheel on the 2 and 3 L ... with a
welding torch and knock it off with an
aluminium drift.
For the 4 L ... crankshaft, unscrew and
remove the flywheel-end counterweight,
remove the machine screws for the
gearwheel and drive out the straight pin
(24/1).
3
L / M . . 09.96
22
23
24