-8-
6.0 Trouble shooting
•
IMPORTANT
1)
Switch off the current before remowing any parts from the compressor.
2)
Empty the air receiver of air before dismantling any part of the compres-
sor unit’s pressure system.
SYMPTOM
CAUSE
REMEDY
A. Compressor unit will not
start automatically.
Fault in electrical installation:
a.
Current supply failure.
b.
Voltage stop.
c.
Motor starter (or star -delta
d.
starter) faulty.
e.
Motor incorrectly connected or faulty.
Let an electrician check the elec-
trical installation in accordance.
Pressure switch defective.
Replace it.
B.
Compressor unit starts,
but stops again after only
a few revolutions.
Non-return valve leaking.
(Compressor unit is not relieved during
start)
a.
Clean valve seat.
b.
Inspect piston and replace if
necessary.
Non-return valve blocked, possibly frozen
up.
Thaw the non-return valve out.
The unit must be installed in a
frost-free place.
Solenoid valve lacking or defective on
star-delta start.
Let an electrician check the elec-
trical installation in accordance.
C.
Compressor unit will not
stop automatically.
Pressure switch defective.
Replace it.
Pressure switch set at a pressure higher
than the safety valve’s opening pressure.
Adjust pressure switch (page 5) or
change safety valve
D. Relief valve under pres-
sure switch blows during
standstill.
Non-return valve leaking.
Clean non-return valve.
(See B)
E.
Relief valve under pres-
sure switch blows during
operation.
Relief valve leaking
Clean or change relief valve.
F.
Compressor can not
Suction filter blocked
Clean or replace insert
attain the required
V-belt too slack
Tighten V-belt (see page 7)
working pressure.
Leak between compressor block and air
receiver.
Leak in or near the air reciever.
Tighten connections and repair the
leak.
Valves blocked by dirt or coked up.
Clean or change valves.
Inspection cover on the air receiver
leaking.
Empty air receiver and change the
seal.
= It is recommended to call local STENHØJ fitter.
Summary of Contents for T63514
Page 14: ... 14 8 2 Drawing for compressorblock type PL50 ...
Page 16: ... 16 8 3 Drawing for compressorblock type PL75 ...
Page 19: ... 19 8 4 Drawing for compressorblock type PL100 ...
Page 21: ... 21 8 5 Drawing for compressorblock type TE50 ...
Page 24: ... 24 8 6 Drawing for compressorblock type TE75 ...
Page 27: ... 27 8 7 Drawing for compressorblock type TE100 ...
Page 30: ... 30 8 8 Drawing for compressorblock type PE 50B ...