Atlas Copco Secoroc YT29A Instrukcja obsługi - Strona 15
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Problem
Uneven running
The side bolts are unevenly
(continued)
or insufficiently tightened.
Can cause the various parts
to
resulting in the seizure of the
movable parts. Abnormal
strains on the side bolt
may result in fracture at the
threads.
The drill gets
Lack of oil
hot
Freezing
High level of humidity in the
compressed air
Water pressure higher than
the air pressure
Water pipe
Misalignment of the shank
breakage
Damaged flushing hole in
the shank
Chipping of the
Misalignment of the shank
piston tip
Excessive wear of the piston
tip
Spline breakage Lack of lubrication
Dirt
when drilling upwards)
Piston breakage Lack of lubrication
Uneven tension in the side
bolts
Worn guide sleeve/piston
guide (can be confirmed by
the cushion test)
Side bolt
Uneven tension on the bolts Tighten the bolts correctly
breakage
Cause
lose
their
alignment,
intrusion
(specially
Solution
Check and repair any damage to
the contact points and tighten the
bolts with the correct tightening
torque
Add oil and check that it runs
through. It is not sufficient that
there is oil in the exhaust air. There
must also be an oil coating on the
shank of the working tool.
Use water traps
Lower the water pressure
Change working tool or shank
sleeve or both
Change working tool
Change the working tool or shank
sleeve or both
Change piston
Lower the water pressure if it is
the same as or greater than the air
pressure
Increase lubrication or change oil
Increase service intervals
Lower the water pressure if it is
the same as or greater than the air
pressure
Increase lubrication or change oil
Tighten the bolts correctly
Change the worn part
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