Leister 142.723 Instrucciones De Funcionamiento página 11

Maintenance
• Clean test needle (2) and compressed air connection (6) if contaminated.
Replacing the sealing rings and test needle
• Old or brittle sealing rings must be replaced. Sealing rings included in scope of supply.
• Loosen the four screws (7) to remove the guard for the test needle (3) and sealing rings.
Fitting new sealing ring.
Do not touch the top of the test needle (2). This can cause injuries.
• Loosen hexagon screw (9) using hexagon spanner 14 mm. Remove test needle (2) and seal.
Fit new sealing rings and if necessary new test needle (2).
ATTENTION: The entire thread length of the test needle (2) must be screwed in onto the original seal as far as
the limit stop. The hexagon must run parallel to the guard for the test needle (3) (Figure I).
The test needle (2) is thereby secured against coming loose itself.
The compressed air tester with test needle may only be used with the mounted guard for the test needle
included in the scope of supply.
• Sealing ring on compressed air connection (6)
– Move compressed air switch (5) to OFF and release compressed air at the compressed air connection (6).
– Loosen screw (8) using hexagon spanner.
– Remove sealing ring and compressed air connection (6).
– Fit new sealing ring.
– Mount compressed air connection (6) by tightening the screw (8).
2
Fig. I
9
3
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