PowerBoss Nautilus Hi-Dump PB45HDSL, Service Booklet

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DUAL CONTROLLER “B” (MAIN SCRUB BRUSH) SETTINGS:
Turning the right control knob scrolls through the parameters listed above.
Turning the left control knob changes the settings of each parameter.
The settings are saved by turning the right control knob to SA and rotating the left control knob one full
turn (in either direction).
To turn on the controller first turn on the ignition key but do not start the engine.
Note: in the next step stay clear of the scrub head as the sub head will lower to the floor.
Turn on the scrub head switch and the green switch.
Set BP1 to 1.48 A Providing 200 lbs of main brush pressure against the floor (415 psi at port BLB)
Set BP2 to 1.98 A Providing 300 lbs of main brush pressure against the floor (730 psi at port BLB)
Set BP3 to 2.18 A Providing 400 lbs of main brush pressure against the floor (865 psi at port BLB)
BP4 – Not used
Set BUP to 00.5 SEC
Set BDN to 00.5 SEC
Set Df (dither) to 250 Hz
dI = screen orientation – no setting should be required.
SA (save settings) – Turn the left control knob one full turn (in either direction).
Turn off the green switch.
Start and run the engine at high rpm. This will raise the scrub head.
Turn off the engine.
SIDE SCRUB HEAD:
Note: the following 12 steps are required only for the factory or if you are replacing the reduction valve
730702 in port 4.2. If the part number on the side of the reduction valve body (not the coil but the
cartridge body) ends with the number 45 then it is already set at 450 psi and the following 12 steps can
be skipped.
Before the side scrub head floor pressure adjustment can be performed the reduction valve at the SSB
hydraulic manifold port 4.1 must be adjusted to 450 psi (The purpose of this valve is to change the
variable inlet pressure (approximately 700 psi) to a constant output pressure of 450 psi which is applied
to the piston-end of the side scrub head lift cylinder. 450 psi is the pressure required to raise the scrub
head at full engine rpm).