Idiomas disponibles
Idiomas disponibles
5. Coupling (picture
)
The coupling rubbers (k) are wearing parts and should be checked regularly. When the coupling rubbers are worn this can be detected by a knocking
sound when the compressor is started.
Defective coupling rubbers can cause extensive damage and even in some extreme cases break the rotor shaft.
To check the coupling stop the motor (m) and isolate. Remove the screws (s
should also be removed. Pull off the motor together with the motor side coupling half (q). If the coupling rubbers (k) are damaged remove the
circlips (l) from the coupling bolt (r) and exchange the coupling rubbers (k). Leave the spacer (p) in place, check the coupling bolts (r) for any wear
and replace if necessary. To replace, remove the circlip (l
washer (u) and exchange the coupling bolts.
Re-assemble in reverse order.
Trouble Shooting:
1.
Motor starter cuts out compressor:
1.1 Check that the incoming voltage and frequency corresponds with the motor
data plate.
1.2 Check the connections on the motor terminal block.
1.3 Incorrect setting on the motor starter.
1.4 Motor starter trips too fast.
Solution: Use a motor starter with a time delay trip (version as per IEC 947-4).
1.5 The regulating valve is dirty causing excess pressure.
2.
Insufficient pressure capacity:
2.1 Inlet filters are obscured.
2.2 Pressure pipe work is too long or too small.
2.3 Leak on the compressor or on the system.
2.4 Blades are damaged.
3.
Compressor does not reach overpressure:
3.1 Leak on the compressor or on the system.
3.2 Blades are damaged.
3.3 Motor rating selected was too small.
4.
Compressor operates at an abnormally high temperature:
4.1 Ambient or suction temperature too high.
4.2 Cooling air flow is restricted.
4.3 Problem as per 1.5.
5.
Unit emits abnormal noise:
5.1 The compressor cylinder is worn.
Solution: send your complete unit off for repair to the supplier or approved service agent.
5.2 Blades are damaged.
Appendix:
Repair on Site: For all repairs on site an electrician must disconnect the motor so that an accidental start of the unit cannot happen.
All engineers are recommended to consult the original manufacturer or one of the subsidiaries, agents or service agents. The address of the nearest
repair workshop can be obtained from the manufacturer on application.
After a repair or before re-installation follow the instructions as shown under the headings "Installation and Initial Operation".
Lifting and Transport: To lift and transport the compressor the eye bolts on the housing and motor must be used. If an eye bolt is missing use suitably
rated strops. The weight of the compressors is shown in the accompanying table.
Storage: DFT units must be stored in dry ambient conditions with normal humidity. We recommend for a relative humidity of over 80% that the
compressor should be stored in a closed container with the appropriate drying agents.
Disposal: The wearing parts (as listed in the spare parts lists) should be disposed of with due regard to health and safety regulations.
Spare parts lists:
E 340
E 341
DFT
Noise level (max.) /
Sound power*
Weight (max.)
Length (max.)
Width
Height (max.)
), pull off the coupling and fan (v) complete from the pumpshaft, remove the nut (w) with
1
DFT 25 - DFT 100 (02)
DFT 25 - DFT 100 (09)
25
40
50 Hz
73
75
dB(A)
60 Hz
76
77
(02)
45
61
kg
(09)
47
58
(19)
-
-
(02)
619
733
mm
(09)/(19)
619
733
(02)/(09)
333
333
mm
(19)
-
-
(02)
254
254
mm
(09)
305
305
(19)
-
-
) on the motor flange (n). For motors secured by the feet, screws (s
5
E 342
DFT 140 - DFT 500 (02)
E 343
DFT 140 - DFT 500 (09)
60
80
100
140
76
77
78
84
78
79
80
86 / 95* 88 / 97* 90 / 99* 91/ 101* 92/ 102*
75
100
115
175
75
100
115
215
-
-
-
225
762
779
913
952
762
779
913
1074
383
432
438
566
-
-
-
638
292
372
372
575
343
363
363
647
-
-
-
617
180
250
340
86 / 95* 88 / 97* 89 / 99* 90/ 100*
250
295
421
245
305
440
255
315
455
1154
1234
1306
1135
1215
1305
566
566
702
638
638
779
575
575
720
647
647
807
617
617
762
)
6
500
610
640
655
1497
1495
712
789
720
807
762
1.2001
/ PM6
