Adjustment Of 3-Way Valve; Boomprime One-Way Valve; Safety Valve Activation; Feed Pipe Clamp Assembly - Hardi Master Plus Instruction Book

6 - Maintenance

Adjustment of 3-Way Valve

The large ball valve (type s93) can be adjusted, if it is too tight to
operate - or if it is too loose (= liquid leakage).
• Correct setting is when the valve can be operated smoothly by one
hand.
Use a suitable tool and adjust the toothed ring inside the valve as shown
on the drawing.
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ATTENTION! The small ball valves (type s67) cannot be adjusted.

BoomPrime One-Way Valve

If the one-way valves for the BoomPrime system are clogged, they must
be cleaned.
1. Disassemble the two parts.
2. Clean the parts as needed and check the black O-ring.
3. Assemble the parts again and tighten with a torque of 1 Nm.
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ATTENTION! If any part is worn or damaged, it should be replaced.

Safety Valve Activation

To make the fluid system work perfectly over time, it is good practice to regularly provoke opening of the safety valve.
This prevents clogging and ensures proper function of the safety valve. Opening of the valve is done by turning the pressure
valve to an unused function, when the pump is running. This is good practice for all sprayers; particularly for sprayers without
optional equipment.

Feed Pipe Clamp Assembly

A feed pipe can be removed from the pipe clamps the following way:
1. Use a flat bladed screwdriver to prize the cover off the first corner
(A).
2. Hold the clamp top with your hand and prize off the opposite
corner (B) with the screwdriver.
3. Prize off the other side of the pipe clamp with the screwdriver.
4. Take out the feed pipe.
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