Nilfisk-Advance SW900, Service Manual

Page: 61 / 137

Electrical and Control System 61 Service Manual – SW900
Dynamotor Voltage Check (SW900 P)
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 Carefully operate and keep operated, the hopper
position microswitch (to simulate the presence of
the hopper)
5 Check that the main and side brooms(s) are
lifted
6 Turn the ignition key to “I” and start the petrol
engine (as shown in the User Manual); wait
at least 5 minutes that the engine reaches the
target speed
7 Disengage the front fastener and o pen the
engine compartment hood
8 Move aside the guards (A) of the terminals (B)
and (C) of the dynamotor (D)
9 Apply the detectors (E) and (F) of the tester
on the terminals (B) and (C) and measure the
voltage produced by the dynamotor, which must
be between the 12V and 14V
Stop the petrol engine (as shown in the User
Manual)
Turn the ignition key to “0”
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