raulic S ste
Service Manual – SC8000
raulic Mani ol sse
l Co
onent ocation e
Item
Component Description and Hydraulic Circuit Function
LI/S1
Solenoid coil and valve cartridge, vacuum fan motor, coil 8 ohms
L2/S2
Solenoid coil and valve cartridge, squeegee lift cylinder DOWN (top), coil 8 ohms
L3/S3
Solenoid coil and valve cartridge, squeegee lift cylinder UP (bottom), coil 8 ohms
L4/S4
Solenoid coil and valve cartridge, scrub/sweep system motors, coil 8 ohms
L5/S5
Solenoid coil and valve cartridge, scrub pressure DN, proportional relief, coil 2.2
ohms
L6/S6
Solenoid coil and valve cartridge, scrub lift cylinder lock, coil 8 ohms
L7/S7
Solenoid coil and valve cartridge, scrub pressure UP, proportional relief coil 2.2
ohms
R1
Solenoid coil and valve cartridge, pressure relief, vacuum fan, 2700 psi
R2
Solenoid coil and valve cartridge, pressure relief, scrub brush(s), 2700 psi
L8/S8
Solenoid coil and valve cartridge, right scrub/sweep system, coil 8 ohms
L9/S9
Solenoid coil and valve cartridge, right scrub lift cylinder, coil 8 ohms
Note: The combined electrical solenoid and hydraulic valve cartridge assembly can be serviced
separately.
Service Notes: The S1, S2, S3, S4 and S6 solenoid coils w/connectors are the same, and the
S5 and S7 solenoid coils w/connectors are the same, and can be swapped for
troubleshooting purposes.
The S8 and S9 solenoid coils w/connectors are both different and only one of each
is used.
The S1 and S4 valve cartridges are the same, the S2 and S3 valve cartridges are
the same, and can be swapped for troubleshooting purposes.
The S5, S6, S7, S8 and S9 valve cartridges are all different and only one of each is
used.
