Clarke MA50 15B, Service Manual

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Solution System
69
Service Manual – MA50 15B
Maintenance and Adjustment
Flushing Solution Tank
1. Work near a floor drain for convenient clean up if possible
2. Turn the power switch OFF
3.
Remove the brush/pad driver
4. Close the Solution shut-off valve (The valve is closed when the handle is NOT in line with the hose)
5. Fill the Solution tank with hot water
6. Turn the power switch to ON, turn the Brush switch ON, turn the Solution switch ON. A full stream of water
should flow out of the plastic elbow clipped to the brush deck
7. There is no solution filter on the MA50 15B, so if there is a restriction, it will be in the valve, solenoid, or tubes
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 switch panel
•
Solution Solenoid is defective
•
Replace Solution Solenoid
Insufficient Solution Flow
•
Debris in the solution flow
control
• Remove and clean the solution
flow control
•
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 control knob is set
too low
•
Adjust the solution flow knob
•
Solution tank is near empty
•
Re-fill Solution tank, and empty
the Recovery tank
Solution leaks while machine is idle
•
Leak in Solution tank
•
Replace the Solution Tank
•
Defective solution solenoid
•
Replace Solution solenoid
•
Solution tank is over-filled
• Drain some solution using the
drain cap