Solution System
48
Service Manual – CA90 32T
Troubleshooting
Problem
Cause
Correction
No Solution Flow
• Solution switch not in “ON”
position
• Turn Solution switch to the
“ON” position
• Solution switch is defective
• Replace Solution switch
• Solution Solenoid is defective
• Replace Solution Solenoid
Insufficient Solution Flow
• Restricted (clogged) solution
filter
• Thoroughly clean the solution
filter screen
• Debris in the solution feed lines
• Clean out solution tank and
solution feed lines
• Pinched/kinked solution feed
hose
• Check all solution feed lines
and remove pinches/kinks
•
Solution flow adjust knob is set
too low
•
Adjust the solution flow knob
• Solution tank is near empty
• As the solution tank nears
empty, the solution will only go
to the right brush head. Re-fill
the solution tank
Solution leaks while machine is
idle
•
Solution filter gasket is
defective
• Replace Filter gasket
• Solution solenoid diaphram
is not seating properly when
“OFF”
• Replace Solution solenoid
•
Hose or fitting leak
• Inspect and repair hoses and
fittings
Removal and Installation
Solution Valve
Note: Replacing the solution valve is difficult, and should only be done when you are certain it
is the problem.
1. Remove all water from the solution and recovery tanks.
2. Choose a workspace where you can tip the machine onto it’s side
3. Turn off the keyswitch, and disconnect the battery connector from the batteries to the machine.
4. Remove all (6) batteries, and set out of the way.
5. Remove the squeegee assembly and set aside.
6. GENTLY tip the machine onto it’s side. This is a (2) person job.
7. Loosen the (2) hose clamps, and disconnect the tubes.
8. Remove the (2) bolts that hold the valve to the machine frame.