Nilfisk-Advance SW900, Service Manual

Page: 91 / 137

Petrol Engine System 91 Service Manual – SW900
Engine Belt Check/Adjustment/Replacement (Continues)
• Disengage the front fastener and open the
engine compartment hood
• On the upper side of the machine, insert a
ruler (K) in contact with the inner surfaces of
the engine pulley (I) and the reduction unit
pulley (J), then check for the proper align -
ment
• If necessary, adjust the alignment as shown
below:
– Loosen the four nuts (L) fastening the
engine holder (G) to the vibration-damp-
ers, then adjust the alignment of the
two pulleys by sliding the plate (G) with
engine assembly; when the adjustment is
completed, tighten the nuts (L).
7 The pad (M) must slightly contact the holder
(G), then if necessary, adjust its position by
adjusting the locknut (N) and the nut (P); when
the adjustment is completed, tighten the nuts.
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