Solution System; Brush Drive; Dispensing Solution; Filtration - Factory Cat MINI-MAG SERIES Service Manual

SOLUTION SYSTEM

The solution system on the MiniMag series consists of main body of the machine which is
also the solution tank, the fill opening, sight gauge/drain, filter, potentiometer, controller on
traction drive machines or switch on brush drive machines and the solution solenoid valve.

BRUSH DRIVE

When the solution switch on the central command is switched on the solution is turned on
automatically when the brush deck is turned on and turns off automatically when the brush
deck turns off. On brush drive machines the solution volume is controlled by a ball valve
directly after the solution solenoid.

TRACTION DRIVE

The solution is turned on automatically when the brush deck is turned on and turns off auto-
matically when the brush deck turns off. The volume of solution is controlled by the solution
potentiometer located on the control panel. The potentiometer sends a varied voltage sig-
nal to the controller and the controller interprets this signal and sends power pulses down
to the solution solenoid valve. The more solution that is called for, the longer the length of
the power pulse. When the potentiometer is turned to the MAX solution setting the valve
receives constant power when the scrub deck is running. When the potentiometer is set to
the MIN. position the solution solenoid valve receives no power even when the brushes are
running.

FILTRATION

The solution runs through an in-line filter with a screen and a bowl attached to capture par-
ticles or debris that moves thought the solution system. The screen and bowl need to be
cleaned on a regular basis.
THE SOLUTION TANK IS MADE OF HIGH DENSITY PLASTIC. THIS PLASTIC STARTS
TO DEFORM AND LOOSE ITS SHAPE AT 135 DEGREES FAHRENHEIT. NEVER USE
WATER HOTTER THAN 135 DEGREES FAHRENHEIT!

DISPENSING SOLUTION

Make sure the recovery tank is at least 1/2 full with desired scrubbing solution. Adjust solu-
tion control knob near the center of travel. Turn on the brush deck switch. Activate the ma-
chine by pressing either of the green handlebar buttons. The solution will start to flow when
the brushes start and stops flowing when the brushes stop. On traction drive units turn the
solution control potentiometer while scrubbing to adjust solution volume. On brush drive
units turn the ball valve located on the scrub head directly in front of the solution solenoid.
Magnum Service Manual V1.0
SOLUTION SYSTEM
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