Nilfisk-Advance SW900, Service Manual

Page: 59 / 137

Electrical and Control System 59 Service Manual – SW900
Main motor amperage check (SW900 B)
Warning! This procedure must be
performed by qualified
personnel only.
1 Drive the machine on a level floor and ensure
that it cannot move
2 Turn the ignition key to “0”
3 Remove the hopper by using its transport handle
and wheels
4 Check that the side brooms are lifted
5 Disengage the front fastener and open the
battery compartment hood
6 Remove the screws (A) and the right side panel
(B) from the machine
7 Turn the tensioner (C) in the direction shown by
the arrow and disengage the belt (D) from the
pulley (E)
8 Turn the tensioner (F) in the direction shown by
the arrow and disengage the belt (G) from the
pulley (H)
9 Apply amp clamps on a cable (I) of the main
motor (J)
10 Carefully operate and keep operated, the
hopper position microswitch (K) (to simulate the
presence of the hopper)
11 Turn the ignition key to “I” thus turning on the
main motor; check that the amperage of the
motor (J) is between 30 and 35A at 24V
12 Turn the ignition key to “0”
13 Remove the amp clamp
P200280