Nilfisk-Advance SW900, Service Manual

Page: 124 / 137

Side Broom System 124 Service Manual – SW900
Side Broom Motor Amperage Check
Warning! This procedure must be
performed by qualified
personnel only.
Note: This procedure refers to the
right side broom check; the
procedure for the left side
broom is the same.
1 Remove the side broom of the motor to be check
(see the procedure in the relevant paragraph)
2 Remove the hopper by using its transport handle
and wheels
3 Disengage the front fastener and open the
battery/engine compartment hood.
4 On the right rear side of the battery/engine
compartment, apply the amp clamp on a cable
(A) of the side broom motor to be checked
5 (For SW900 B) Turn the ignition key to “I”
(For SW900 P) Turn the ignition key to “I” and
start the petrol engine (as shown in the User
Manual); wait a few minutes that the engine
reaches the target speed
6 With the lever, lower and activate the side
broom to be checked, and then check that the
motor amperage is between 1 and 3A at 24V
7 Lift the side broom and stop its rotation
8 Turn the ignition key to “0”
9 Remove the amp clamp
10 If the amperage is higher, perform the following
procedures to detect and correct it:
– Check if there is dust or dirt (cords, cables,
etc ) on the side broom hub
– Disassemble the motor (see the procedure in
the relevant paragraph), and check the condi -
tion of all its components
If the above-mentioned procedures do not lead to
a correct amperage, the motor must be replaced
(see the procedure in the relevant paragraph)
Reassembly
11 Perform steps 1 to 3 in the reverse order
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