KNF 126111, Руководство по эксплуатации

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Vacuum pump system SCC 950 Troubleshooting
Translation of original Operating Instructions, English, KNF 304771-304773 07/18 47
10. Troubleshooting
DANGER
Risk of electric shock, danger of death

Disconnect the pump from the power supply
before working on the pump.

Make sure that the pump is de-energized.

Vacuum pump system generally: see Tab. 9.

Hand terminal: see Tab. 10.

Software operation: see Tab. 11.
Vacuum pump system generally
Error Cause Remedy
The vacuum pump system
is switched on, but the
power switch does not
illuminate. Power cable not plugged
in.

Plug the vacuum pump system's
mains power cable into a properly
installed grounded socket.
No voltage in the mains.

Check the room's fuses.
Fuses in vacuum pump
system are blown. 1. Identify and eliminate cause of
overload.
2. Replace the mains fuse(s) of the
vacuum pump system:

At the fuse drawer
(Fig. 2/
17 , p. 13) press the lock-
ing strap downward and remove
the fuse drawer.

Replace defective fuse(s)
(For fuse specifications, refer to
Chapter 4.1, page 9f; for the or-
der number of the fuse, see
Chapter 11, page 52).

Slide the fuse drawer in until it
engages.
Insufficient vacuum gener-
ated although the pump is
running.
Vacuum chamber leaking 1. Check by closing the gas inlets
(Fig. 2/ 17 and 18, p. 13). If the
pump achieves sufficient vacuum,
the vacuum chamber has a leak.
2. Repair the leak in the vacuum
chamber.
The O-ring at the holder for
the suction side collection
flask is not installed cor-
rectly.

Align the O-ring

If the O-ring is defective, replace it
(order no. see Chapter 11, page 52).
Hose connection leaking.

Make sure the hoses are properly
seated on the hose connectors.

Replace leaking hoses.

Replace leaking hose connectors.

For the order number, refer to Chap-
ter 11, page 52.
Tab. 9 (1st part)