Scru S ste
C lin rical
Service Manual – SC8000
rou les ootin
eneral rou les ootin
Problem
Cause
Correction
The scrub deck
will not extend
downward, the
scrub brush motors
will not operate and
there is no solution
ÀRZ
Note that a fault
code 01, 13 or 15
will disable the
scrub system.
Scrub brush pressure valve
solenoids over current (fault
code 01 displayed)
Check L5 down and L7 up pressure valve solenoid
coils (on same fault line) for wiring problems, L5
wire colors (+ ORN and - WHT/VIO) and L7 ( +
251DQG2515('
&KHFNFRLOUHVLVWDQFH,IOHVVWKDQRKPV
UHSODFH$OVRVHHPDLQVFUXERQDQGULJKWVFUXE
brushes deck pressure electrical ladder detail and
IXUWKHUVSHFV
Scrub brush motor solenoid
over current (fault code 13
displayed)
Check L4 solenoid coil wiring for problems (+ ORN
DQG251%/8
&KHFNFRLOUHVLVWDQFH,IOHVVWKDQRKPVUHSODFH
$OVRVHHPDLQVFUXERQDQGVLGHVZHHSULJKW
VFUXEHOHFWULFDOODGGHUGHWDLO
Scrub cylinder lock solenoid
over current (fault code 15
displayed)
&KHFN/VROHQRLGFRLOZLULQJIRUSUREOHPV251
DQG<(/%/8
&KHFNFRLOUHVLVWDQFH,IOHVVWKDQRKPVUHSODFH
$OVRVHHPDLQVFUXERQDQGULJKWVFUXEEUXVKHV
GHFNSUHVVXUHHOHFWULFDOODGGHUGHWDLO