Nilfisk-Advance 56108110 SC8000 48 LPG, Руководство по обслуживанию

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S uee ee S ste 8 Service Manual – SC8000
The
Squeegee Down Solenoid Valve
S2
and the
Squeegee Up Solenoid
Valve S3
that control the
Squeegee
Lift Cylinder
are located on the
hydraulic manifold at the rear of
the machine as shown.
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Problem Cause Correction
Poor Water Pick-up The squeegee blades are
torn or worn.
Check and replace the blades as necessary.
The squeegee assembly is
out of adjustment. Readjust the squeegee. (Refer to the Instructions for
Use.)
The squeegee
system is not
working.
Squeegee UP solenoid over
current (fault code 11 is
displayed)
‡
Check L3 solenoid coil wiring for problems
(+ GRN/BRN and - BRN/GRN).
‡
Check coil resistance. If less than 6 ohms, replace.
Also see
acuu an an S uee ee
electrical ladder detail.
Squeegee DN solenoid over
current (fault code 12 is
displayed)
‡
Check L2 solenoid coil wiring for problems
(+ GRN/BRN and - RED/GRA).
‡
Check coil resistance. If less than 6 ohms, replace.
Also see
acuu an n an S uee ee o n
electrical ladder detail.
Squeegee will not
rise
Solenoid L3 is not
energizing or has failed
‡
Check L3 solenoid coil wiring for problems
(+ GRN/BRN and - BRN/GRN).
‡
If there is voltage to L3, replace the solenoid.
Pressure to the squeegee
lift cylinder is too low.
Check the pressure at the charge port on the
propulsion piston pump. Pressure should be 250 psi.
If the pressure is too low, clean or replace the charge
relief cartridge located on the wheel drive pump.
Note he s uee ee may lift more slowly with the
e
i e at idle .
The squeegee linkage is
binding Check the squeegee linkage and mounts and correct
as necessary.
Squeegee
Down Solenoid
Valve S2 top
Squeegee Up
Solenoid Valve
S3 bottom