Maintenance; Maintenance Intervals; Check And Replace Test Probes - Ingun MA 2 Serie Betriebsanleitung

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7)

Maintenance

WARNING L
ETHAL ELECTRIC SHOCK
Lethal electrical voltage at the test probes for > 25 VAC voltage and > 60 VDC voltage!
Before servicing, disconnect all affected devices from the power supply and secure (e.g.

with a sign) against unauthorised reconnection!
7.1)

Maintenance intervals

Every 50,000 cycles
Part
Lubricate gas spring bearing
and check function
Note: the service life of the gas spring
is specified by the manufacturer as
50,000 cycles. In long-term tests,
however, the gas springs have
remained effective at several times
this specified service life.
every 150,000 cycles (only valid for optional automatic opener/closer)
Gear wheel drive
Every 3 months
Check test fixture for wear
Pneumatic components
Annually
Protective conductor wiring
(only available with corresponding
additional function)
7.2)

Check and replace test probes

The spring-loaded test probes are subject to very different loads. A reliable signal transmission is
only possible with fully functional test probes. Conditions for reliable contact are:
 no contamination on the plunger tip
 no excessive wear of the points of the plunger tip
 no scratches on the test probe's plunger shaft
 no metal chips, particles, or other contamination on the probe plate between the probes
 test probe is installed securely in the receptacle
 no height differences between test probes of the same type
 no bending of the test probe
 correct position of the respective test probe types
©
INGUN: Subject to technical changes without notice. E&OE.
!
Indication of defect
The force of the gas spring
decreases, drive unit closes
independently, or becomes
sluggish and could possibly
become blocked
Increasingly loud noises or
drive unit does not close com-
pletely
Moving parts with large play,
possibly abrasion or other ab-
normalities
Sound of leaking compressed
air
Possibly reduced protective
function
Procedure
Lubricate bearing (see sec-
tion 7.5) 7.5)Grease/lubri-
cate the test fixture44)
Replace defective parts and
grease the bearing of the gas
pressure spring
Replace gear wheel drive
(part no. 113415)
Clarify the cause and replace
defective parts, contact the
manufacturer if necessary
Switch off the control unit
Check for leaks in the com-
pressed air hoses or connec-
tions, replace defective parts
if necessary.
Measurement of protective
conductor resistance (thresh-
old: 0.3 Ω) Visual inspection;
if necessary, replace defec-
tive wiring
42