Graco 127643, Инструкция по эксплуатации

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14 M0309
EN
N NOISE LEVEL
In normal operating conditions, noise emissions of all models do not exceed 70 dB at a
distance of 1 metre from the electric pump.
O PROBLEMS AND SOLUTIONS
For any problems contact the authorised dealer nearest to you.
PROBLEM POSSIBLE CAUSE CORRECTIVE ACTION
THE MOTOR IS NOT
TURNING
Lack of electric power Check the electrical
connections and the safety
systems.
Rotor jammed Check for possible damage
or obstruction of the rotating
components.
Motor problems Replace unit
Burned fused Replace the fuse
THE MOTOR TURNS
SLOWLY WHEN START-
ING
Low voltage in the electric
power line
Bring the voltage back within
the anticipated limits
LOW OR NO FLOW
RATE
Low level in the suction tank Refill the tan
Foot valve blocked Clean and/or replace the valve
Filter clogged Clean the fil er
Excessive suction pressure Lower the pump with respect
to the level of the tank or
increase the cross-section of
the piping
High loss of head in the
delivery circuit (working with
the by-pass open)
Use shorter piping or of
greater diameter
By-pass valve blocked Dismantle the valve, clean
and/or replace it
Air entering the pump or the
suction piping
Check the seals of the
connections
A narrowing in the suction
piping
Use piping suitable for
working under suction
pressure
Low rotation speed Check the voltage at the
pump. Adjust the voltage and/
or use cables of greater cross-
section
The suction piping is resting
on the bottom of the tank
Raise the piping
INCREASED PUMP
NOISE
Cavitation occurring Reduce suction pressure
Irregular functioning of the
by-pass
Dispense until the air is
purged from the by-pass
system
Presence of air in the flui Verify the suction connections
LEAKAGE FROM THE
PUMP BODY
Seal damaged Replace unit
THE PUMP DOES NOT
PRIME THE LIQUID
Suction circuit blocked Remove the blockage from
the suction circuit
Malfunction of foot valve
fit ed on suction circuit
Replace foot valve
The suction chambers are dry Add liquid from pump
delivery side
The pump chambers are dirty
or blocked
Remove the blockages from
the suction and delivery valves