Nilfisk-Advance SW900, Service Manual

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Petrol Engine System 90 Service Manual – SW900
Removal and Installation
Engine Belt Check/Adjustment/Replacement
Check and adjustment
1 Drive the machine on a level floor and ensure
that it cannot move
2 Turn the ignition key to “0”
3 Remove the rear grid (A) after removing the
upper mounting screw (B) and disengaging the
fasteners
4 Check the entire length of the engine belt (C) to
make sure it is intact and shows no signs of cuts,
tears or cracks. If necessary, replace the belt.
5 Check the proper tension of the belt, which can
occur when pressing the belt in middle area
between the two pulleys, with a force (D) of
approximately 1 Kg, the belt is moving of an
arrow (E) of 15-20 mm
If necessary, adjust the belt tension as shown
below:
• Loosen the four mounting screws (F) of the
engine assembly (H) to the holder (G), then
move the engine assembly as necessary;
when the proper tension is reached, tighten
the four screws (F)
6 If necessary, also check the correct alignment
of the engine pulley (I) with the reduction unit
pulley (J), as shown below:
• Remove the hopper by using its transport
handle and wheels
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