EN
The pump does not start.
The starting or operating
current of the pump is
too high.
The temperature of the
running pump is too
high.
The pump sticks during
operation.
Unusual noise during
pump operation.
Smoke or drops of oil
come out of the vent.
7-4
Malfunctions and repair of the equipment for heat sealing
Fault
Heat sealing is
impossible.
22
The sealing of the suction pipe
is broken.
The mesh filter of the air inlet
valve is clogged.
The air intake valve shutter is
jammed.
Leakage in the oil seal.
The blade is curved, the
surface of the gutter is uneven.
Internal wear.
Voltage is low or a fuse is
blown.
The pump or motor seizes.
The tank is full of oil or the oil
grade is not suitable.
Because of the low
temperature, the lubricating oil
has become too viscous.
The exhaust filter is clogged.
Excess or lack of lubricating
oil.
Heat liberation is wrong.
The pump has rotated for a
long time in the opposite
direction.
The blade is broken or twisted.
There is no oil on the friction
surface.
The drive parts are worn or
loosely connected.
The oil tank is full.
The exhaust filter is not
installed correctly or damaged.
The exhaust filter is clogged.
Cause
The heat sealing controller is in improper
position.
Check the sealing of the pipe and
the connection to eliminate
leakage.
Clean the mesh filter of the air
inlet valve.
Check if the air inlet valve is
operating freely.
Replace the oil seal.
Replace the blade.
Replace a worn-out part or adjust
the machine.
Check voltage and fuse.
Remove the fan cover, try to turn
the motor manually, then set the
cause of the jam.
Check oil level and grade.
Replace with oil of lower
viscosity. At an ambient
temperature of less than 5°C,
heat the oil before starting.
Clean or replace the filter.
Check and adjust the oil level.
Check the radiator fins of the
pump and motor to adjust
ventilation.
Adjust the direction of rotation
and perform a general check of
the pump.
Check and replace the blade.
Lubricate the oil hose and check
the gap to determine the cause of
the oil shortage.
Locate a broken area and repair
in a timely manner.
Drain excess oil.
Sort or replace the exhaust filter.
Clean or replace the filter.
Solution