II/6
UNM STS/STL
GB
2.9 Warranty
Basic principle:
complete unit in original
condition / proof of purchase.
Material and production defects are covered
by statutory provisions.
Excluded warranty claims:
Wear/consum-
able parts; improper use; overload; manipu-
lation/use for other than intended use;
insufficient/incorrect/no maintenance; accu-
mulation of dust/dirt; incorrect/impermissi-
ble work methods; failure to observe the
Instruction Manual; incorrect processing/
working materials; incorrect electrical con-
nection; improper installation.
H Compressor
switches on fre-
quently.
Excessive condensate in the
pressure tank.
X
Drain the condensate (see
Chap. 2.6.3).
Compressor overloaded.
X
See item E
I
Safety valve blows
out.
Vessel pressure is higher than
the set switch-off pressure.
X
Have the pressure switch reset/
replaced by a qualified person.
Safety valve is defective
X
Replace or contact service part-
ner
J
Compressor over-
heats.
Air supply not sufficient.
X
Ensure sufficient ventilation.
Cooling fins on cylinder (cylin-
der head) contaminated
X
Clean
Duty cycle too long.
X
Switch off compressor.
K Oil-lubricated com-
pressor: the oil
level rises without
oil having been
added
Condensate collects in the oil
X
Compressor is too large, contact
service partner
High humidity.
X
Change oil.
L
V-belt driven com-
pressor: unusual
running noises
V-belt or belt disc is scraping
against belt guard grating
X
Look for point of contact, remedy
error
V-belt sags
X
Tighten the V-belt (see
Chap. 2.6.9)
Problem
Cause
Remedy
Summary of Contents for UNM STS 580-15-270
Page 10: ...2a 3a 4a 7a 7b 5a SB 2b 2c S...
Page 55: ......
