Nilfisk-Advance Advance Retriever 2060 Service Manual page 22

SWEEPING SYSTEM
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TROUBLESHOOTING GUIDE
Possible Symptoms
1 Main broom and side broom motors do not function
2 Main broom does not turn
3 Side broom does not turn
4 Main broom does not turn off
5 Side broom does not turn off
SYMPTOM ONE
Main and side broom
motors do not
function.
Turn impellor motor
switch on and see if
impellor motor runs.
Check if dump door
is in open position.
Lower main broom and
turn key switch to on
position. Check for
12vdc at ORN/GRN and
black connector on L3
solenoid valve.
Replace solenoid.
20 - FORM NO. 56043051 / Retriever
Yes
Yes
Yes
™ 2060
See symptom 3 in
No hydraulic trouble-
shooting chart.
No Open dump door.
Check the adjustment
and operation of S12
No
hopper/dump door
interlock switch. (see
hopper section)