HPP GL 109/290, Assembly And Special Maintenance Instructions

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47
TROUBLESHOOTING
ES
DE
RU
IT
EN
PROBLEM CAUSES REMEDIES
- The pump is not taking up
water (not loading).
1. The seal of one or more val-
ves could be missing.
a) internal valves
b) external valves
2. The pressure regulating valve
has not been lifted up.
3. The filter is clogged.
4. The intake fitting is loose or
the intake pipe has a hole in it.
5. The pump has not been used
for a long time, the valves
have rusted and stuck.
a) internal valves
b) external valves
1. a) Remove the head and
change the metal parts of the
valves.
b) Remove the valve cap and
change the worn parts.
2. Loosen the pressure regula-
ting valve.
3. Clean the filter or change it if
broken.
4. Secure the pipe properly or
change the holed part.
5. a) Remove the head,clean
the plates andvalve housings.
b) Remove the valve cap and
clean the plates and valve
housings.
- The pump is supplying water
but there is no pressure.
1. The regulating valve is worn.
2. The pump is taking in air.
1. Change the regulating valve.
2. Tighten the intake pipe
properly.
- The connecting pipes are vibra-
ting excessively.
1. There could be solid particles
stuck between the plate and
valve housing.
a) internal valves
b) external valves
1. a) Remove the head and any
such particles from between
the plate and valve housing.
b) Remove the valve cap
and any such particles from
between the plate and valve
housing.
- Anomalous drop in pressure
- Flow with water leaking
- Worn gaskets.
- Damaged O-rings.
- Change the gaskets.
- Change the O-rings.
WARRANTY
The product is covered by a 3 (three) year warranty from the date of delivery, as long as the buyer has
complied with contractual norms.
With regard to warranty acceptance procedures, refer to the general sales conditions