BUSCH 7180551, Инструкция по установке и обслуживанию

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The connection cable is too small or too long
causing a voltage drop at the vacuum pump Use adequately dimensioned cable
The vacuum pump or the drive motor is jam-
med Make sure the drive motor is disconnected from
the power supply
Remove the fan cover
Try to turn the fan by hand
If the unit vacuum pump/drive motor is still
jammed:
Remove the drive motor and check the drive
motor and the vacuum pump separately
If the vacuum pump is jammed:
Repair the vacuum pump (Busch service)
The drive motor is defective Replace the drive motor (Busch service)
The vacuum pump is jammed Solid foreign matter has entered the vacuum
pump Repair the vacuum pump (Busch service)
Make sure the suction line is equipped with a
mesh screen
If necessary additionally provide a filter
Corrosion in the vacuum pump from remaining
condensates Repair the vacuum pump (Busch service)
Check the process
Check in chapter “Installation and Commissio-
ning, Operating Manual”
The vacuum pump was run in the wrong direc-
tion of rotation Repair the vacuum pump (Busch service)
When connecting the vacuum pump make sure
the vacuum pump will run in the correct direc-
tion of rotation (see “Installation”)
Condensate have entered the vacuum pump Repair the vacuum pump (Busch service)
Make sure no condensate will enter the vacuum
pump, if necessary provide a drain line and a
drain cock
Drain any condensates regularly
The vacuum pump starts, but labours or runs
noisily, or rattles
The drive motor draws a too high a current
(compare with initial motor drive value taken
after commissioning)
The connections in the drive motor terminal box
are defective
Not all drive motor windings are properly
connected
The drive motor operates on two phases only
Check the correct connection of the wires
against the connection diagram
Tighten or replace loose connections
The vacuum pump runs in the wrong direction
of rotation Control and rectification see “Installation and
Commissioning”, correct if necessary
Wrong oil quantity, unsuitable oil type Use the correct quantity of one of the recom-
mended oils
(see “Oil”, oil change see “Maintenance”)
No oil change over an extended period of time Perform oil change incl. flushing (see “Mainte-
nance”)
Foreign objects in the vacuum pump
Stuck bearings
Repair the vacuum pump (Busch service)
The vacuum pump runs very noisily Defective bearings Repair the vacuum pump (Busch service)
Worn coupling element Replace the coupling element
The vacuum pump runs very hot
(the oil sump temperature must not exceed 100
°C)
Cooling water flow too low Check the cooling water circuit and adjust the
flow if necessary
Ambient temperature too high Keep to the permitted ambient temperatures
Temperature of the inlet gas too high Keep to the permitted temperatures for the inlet
gas
Oil level too low Top up with oil
Troubleshooting
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