Hardi MASTER PRO VHH, Инструкция, Страница: 57 / 82

6 - Maintenance
57
Cone check/renewal for EVC distribution valve
Periodically check the distribution valves for proper sealing. Do this by
running the sprayer with clean water and open all distribution valves.
Cautiously remove the clip (A) and pull out the hose (B) for the return
line. When the housing is drained, there should be no liquid flow
through the return line.
If there is any leakage, the valve cone (E) must be changed.
1.
Remove the clip (C)
2.
Lift the motor housing off the valve housing.
3.
Unscrew the screw (D) and replace the valve cone (E).
4.
Reassemble in reverse order.
Changing the ball seat in BK operating unit
If the main ON/OFF valve does not seal properly (dripping nozzles when
main ON/OFF valve is closed), the ball and seat should be checked.
Remove the 2 bolts fixing the main ON/OFF-pressure valve unit to the
bracket, unscrew the union nut (arrow) and pull the valve away from the
distribution valves. Check the ball for sharp edges and scratches, and
check the ball seat for cracks and wear - replace if necessary.
Level indicator adjustment
The level indicator reading should be checked regularly. When the tank
is empty, the float should lie on the stop pin (D), of the rod, and the O-
ring on the indicator should be positioned at the top position line (A).
If any deviation is found, pull out the plug (B), loosen screws (C), and
adjust the length of the cord.