Disturbances during operation and troubleshooting
Original-Betriebsanleitung
HD1+HD2
24
•HD1-2_BAoDB_en_1407•ski
8 Disturbances during operation and
troubleshooting
Faults
Probable Causes
Remedies
1. Pump does not operate,
even though the injection
lance is triggered..
➤
Lack of compressed air.
➤
Check the inlet air
connection.
➤
➤
Air tap lock is closed.
➤
➤
Open air tap lock.
➤
➤
Air motor is defect.
➤
➤
Repair the air motor using
the spare parts list and
Repair Instructions.
Packings or valve worn.
➤
➤
Suction hose or bottom valve
is blocked.
➤
➤
Clean the suction hose or
replace it
➤
➤
Unscrew the bottom valve
and thoroughly clean the ball
and valve seat.
2. Pump operates, but no in-
jection material reaches the
orifice of the injection lance..
➤
Suction hose blocked.
➤
➤
Replace the suction hose.
➤
➤
Bottom valve ball stuck.
➤
➤
Unscrew suction system.
Using a pin or a screw driver,
release ball in bottom valve
from underneath.
➤
➤
Open injection lance ball
valve.
➤
➤
Knock lightly on the side
of the bottom valve with a
hammer.
➤
➤
Bottom valve doesn‘t close.
➤
➤
Unscrew the bottom valve
and thoroughly clean the ball
and valve seat.
3. Material exits the orifice, but
the pump continues to run
when the injecton lance is
not activated.
➤
➤
Packings or valve worn.
➤
Replace the worn parts.
4. Pump runs evenly, but the
necessary injection pressure
can not be reached
➤
➤
Air supply pressure too low.
➤
➤
Increase air pressure at air
regulator. Check that the
diameter of the air line is
correct.
➤
➤
ir motor frozen.
➤
➤
Reduce inbound air pressure
if possible, If not included,
mount a maintenance unit
with oiler. Fill the oiler with
anti-freeze and set according
to the Instruction Manual:
approx. 1 drop every 10
strokes.