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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
Parallelism of the latches
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. 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
45
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
Drive unit does not close eas-
ily or jams
Moving parts with large play,
possibly abrasion or other ab-
normalities
Sound of leaking compressed
air
Possibly reduced protective
function
©
INGUN: Subject to technical changes without notice. E&OE.
Procedure
Lubricate bearing (see sec-
tion 7.5) 7.5) Grease/lubri-
cate the test fixture 47)
Replace defective parts and
grease the bearing of the gas
pressure spring.
We recommend replacing the
entire bearing bracket once
the stud bolt is worn down by
0.2 mm. We also recommend
replacing the brackets on
both sides simultaneously.
Replace gear wheel drive
(part no. 113415)
see section 8.1) Align paral-
lelism of latches 49.
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
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