Nilfisk-Advance 56507009, Troubleshooting Manual

Page: 41 / 82

FORM NO. 56043129 - SR 1900 - 41
SWEEPING SYSTEM
TROUBLESHOOTING GUIDE
Troubleshooting Guide
Symptom
Shaker motor will not run
Part B: Electrical Load Circuit
Note 1: Do all testing with the key switch ON, then press the control panel shaker switch to
activate turn on the shaker motor (shaker runs for approximately 15 seconds).
Shaker motor will not run
Test continuity of the
CB4 (20A) circuit
breaker & its wiring.
Repair or replace
defective parts.
Test for 12V’s @ the M2
shaker motor wires
(+ Blu/Grn & - Blk).
Test for (+)12V’s
@ the K3 Vio wire
to battery ground.
Do you have
12V’s?
Replace the
defective K3 shaker
motor relay
Repair or replace the M2
shaker motor.
Test for (+)12V’s
@ the K3 Blu/Grn
wire to battery
ground. Do you
have 12V’s?
Yes
No No
Yes
On the (+) Blu/Grn
& Wht pigtail & (-)
blk M2 shaker
wires check for an
open circuit.
Repair or replace
the defective wire
Yes
No