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8
Maintenance and service
54 / 72
America
January 2017
Check the setting of the control transformer
as follows:
•
Switch on system as in chapter “Routine
commissioning”.
•
In on-load operation check the control
transformer’s output voltages. Several taps are
provided for this purpose (see wiring diagram).
If the output voltage is not correct, check the
setting of the control transformer as follows:
•
Switch off the main disconnect switch and
secure it against switching on again.
•
With speed-controlled systems or fans ( RS),
wait for 10 minutes. This the time it takes the
power capacitors to discharge.
•
Modify the setting of the control transformer
accordingly (control transformer tap illustration
shows an example of this).
•
Then check setting once more.
8.6.8
Drive motor / lubricator
The drive motor is equipped with an automatic
motor lubrication system.
Maintenance of the motor lubrication system is
limited to replacing the grease cartridges. Empty
grease cartridges or a fault in the lubricator are
indicated on the electronic controls with the
message [Warning: Mot.Lubricator] (see also the
operating instructions for the electronic controller).
Replacing the grease cartridge
1
2
3
4
Fig. 8-12: Lubricator
[1]
Socket for connection cable
[2]
Lubricator drive
[3]
Grease cartridge (not refillable)
[4]
Support bracket
Changing the grease cartridge
An empty grease cartridge or a fault on the
lubricator is indicated on the compressor control
by means of a message [Warning: Mot.lubr. sys]
(also refer to the operating instructions for the
compressor control GD Pilot TS).
Procedure for changing the grease cartridge
1
Switch OFF the main disconnect switch and
secure it against switching on again.
2
Open the enclosure, create access.
3
Pull the plug from the lubricator as follows.
°
Completely unscrew union nut.
°
Pull out plug.
4
Release drive union nut from the grease
cartridge fully and lift off.
5
Release grease cartridge from the support
bracket by turning anticlockwise.
6
Unscrew cap of the new grease cartridge.
7
screw new grease cartridge into the support
bracket. (Max. torque 2–3 Nm / 18 - 27 ft-lbs)
8
Place the drive on the new grease cartridge.
The toothing of the two parts must intermesh.
9
Apply drive union nut without tool. (Max. torque
2 - 3 Nm / 18 - 27 ft-lbs)
Summary of Contents for L160 110A V2
Page 1: ...User manual Screw compressor L160 L290 V2 L160RS L290RS V2 America ZS1149274 03 January 2017...
Page 7: ...Foreword 1 January 2017 America 7 72 1 6 Rating plate Fig 1 1 Rating plate...
Page 69: ...Appendix 9 January 2017 America 69 72...
Page 70: ...9 Appendix 70 72 America January 2017...