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The motor turns slowly
when starting
Low or no flow rate
Increased pump noise
Leakage from pump body
VI. MAINTENANCE AND STORAGE
Before any intervention on product, ensure that product is disconnected from its power
source.
6.1- Maintenance
This pump is designed and constructed to require a minimum of maintenance.
In any case, always bear in mind the following basic recommendations for a good functioning of the
pump:
- On weekly basis, check that the tubing joints have not loosened, to avoid any leakage.
- On a monthly basis, check the pump body and keep it clean of any impurities.
- On weekly basis, check and keep clean the line suction filter.
- On a monthly basis, check that the electric power supply cable are in good condition.
- Check on a monthly basis and keep the suction filters clean.
- In winter, the pump must be carefully drained or placed in "frost" protected condition.
- Before restarting, make sure of the good condition of every part of the pump.
All manuals and user guides at all-guides.com
Low voltage in the electric
power line
Low level in suction tank
Foot valve blocked
Filter clogged
Excessive suction pressure Lower the pump with respect to the level
High loss of head in the
delivery circuit (working
with the by-pass open)
By-pass valve blocked
Air entering the pump or
the suction tubing
A narrowing in the suction
tubing
Low rotation speed
The suction tubing is
resting on the bottom of
the tank
Cavitation occurring
Irregular functioning of the
by-pass
Air present in the diesel
fuel
Seal damaged
Bring the voltage back within the
anticipated limits
Refill the tank
Clean and/or replace the valve
Clean the filter
of the tank or increase the cross section
of the tubing
Use shorter tubing or of greater diameter
Dismantle the valve, clean and/or replace
it
Check the seals of the connections
Use tubing suitable for working under
suction pressure
Check the voltage at the pump. Adjust
the voltage and/or use cables of greater
cross-section.
Raise the tubing
Reduce suction pressure
Dispense fuel until the air is purged from
the by-pass system
Verify the suction connections
Check and replace the seal
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