Troubleshooting - MAXIMATOR SLGP 3 Series Installation And Operating Manual

8

Troubleshooting

The following is a list of typical liquefied gas pump faults, their causes, and the ap-
propriate solutions.
If you experience any other specific or unexpected faults, please notify us at ser-
vice@maximator.de
Fault
The pump does not oper-
ate at low air pressure
The pump does not oper-
ate at low air pressure
Pump does not work
The pump does not work
or works slowly.
The pump does not work
or works slowly.
The pump does not work
or works slowly.
The pump does not
work; air escapes
through the silencer
The pump does not
work; air escapes
through the silencer
The pump does not
work; air flows through
air supply port "V"
The pump operates with
high frequency and short
strokes
Tab. 8-1 Trouble shooting on the drive side
0000000383 - 001 - EN
Cause of fault
Friction of the O-rings on
the spool valve is too
high
O-rings will swell if the
wrong oil or lubricant is
used
The control air is not con-
nected
The control air is not ade-
quately pressurised
Ice has formed on the si-
lencer or spool valve
Formation of residue in
the silencer
The O-rings on the spool
valve are faulty
The O-ring on the air pis-
ton is faulty or worn
The spool valve is
jammed.
The pilot valve in the top
or bottom cap is faulty
Troubleshooting
Solution
– Relubricate
– Replace the O-rings
on the spool valve
– Replace the O-rings
– Use lubricant speci-
fied in drawing
Control air connection
The control air must be
at minimum p
L
Dehumidify the com-
pressed air
Clean the silencer; re-
place if necessary
Replace and lubricate the
O-rings
Replace and lubricate the
O-ring
– Clean the spool
valve and sleeve
– Check the O-rings
and sleeves, and re-
place them if neces-
sary
– Lubricate
Clean, lubricate and, if
necessary, replace the pi-
lot valve
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