Clarke MA50 15B, Руководство по обслуживанию

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Solution System
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Service Manual – MA50 15B
Solution System
Functional Description
The solution system is gravity feed, meaning there is no pump for the solution. The solution system is fed through
a manual petcock (for adjusting solution flow) to a tube which connects to the solution valve.
The solution is then “held” by the solution valve. The solution valve is normally closed, and is energized when
the solution switch is in the ON position, the brush switch is in the ON position, and the safety trigger switch is
engaged. Once the solution valve is open, the solution continues to a tube that feeds the solution to an elbow just
above the brush/pad driver.
The solution valve is open/closed only, and is not mechanically adjustable.
Circuit Description
The Solution circuit is very simple. When the Trigger switch is engaged, and the Solution Switch and Brush
Switch is ON, the Solution Valve (Solenoid) will open, allowing solution to flow to the brush deck
The solution valve is connected to the Control PCB. The internal resistance of the solution valve is 113 ohms.