Nilfisk-Advance Advance Retriever 2060 Service Manual page 152

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Repair
ground
ZENITH FUEL SYSTEMS,
Does engine idle
at 500 – 650 RPM
with actuator
unplugged
YES
NO
ECU
ground ?
YES
Engine idle
above
500 – 650 RPM
with actuator
connected
YES
With ECT above 161 deg. F
allow engine to idle
for 2 – 5 ½ min.
to self learn idle speed
SEE operating specifications
( Q J L Q H V S H H G ´ V S L N H V µ D W L G O H
NO
Back out Idle
stop screw
one turn
OK
Does idle
speed drop
NO
Binding or
stuck throttle
Adjust idle stop
to specifications
SEE: Operating spec.
YES
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