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ドリル Atlas Copco Secoroc YT29AのPDF 取扱説明書をオンラインで閲覧またはダウンロードできます。Atlas Copco Secoroc YT29A 20 ページ。 Pusher leg rock drill
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Trouble shooting
Problem
Decreased
Air leakage in hoses,
penetration rate
couplings
Shank sleeve
Air leakage due to worn
piston/cylinder
Air leakage due to worn
guide sleeve/pilot guide
Insufficient feed
Piston rod seal (in pusher
force
leg) worn or deformed
O-rings on pusher leg
coupling worn or deformed
Poor rotation
Splines of the rifle nut worn Replace the rifle nut if the splines
Splines of the rifle bar worn
down
Splines on the piston worn
down
The toothing in the ratchet
housing is worn out
The toothing in the ratchet
wheel is worn out
Chuck nut worn out
Pawls worn
Uneven running Piston has seized in the
guide sleeve or the piston
guide
Dirty or damaged
main valve. Caused by
impurities or foreign matter
entering the drill with the
compressed air.
Freezing. Caused by leakage
in the flushing system or
by excess water in the
compressed air or by
excessive water pressure
Cause
Change packings, and where
required, change parts in the
throttle valve.
Check the shank sleeve for
excessive wear. Replace if
necessary.
Replace the piston and/or cylinder
Change the worn part
Change the seal
Change the o-rings
are worn
Replace the rifle bar when needed
Replace the piston when needed
Replace the ratchet housing if the
tooth housing is so worn that the
pawls have difficulty catching
Replace the ratchet wheel if the
toothing is so worn that the pawls
have difficulty catching
Replace the chuck nut if the
splines have been worn to 1/2 of
the spline width
Replace all pawls, all pawl springs
and all pawl pins.
Replace the guide sleeve/piston
guide. If required, polish the
piston. Check the piston for heat
damage such as blue colouring
and/or fissures. If it is damaged
in this way, replace the piston as
well.
Clean and polish the valve
so that it seals against the
corresponding cylindrical and
plane sealing surfaces. If this is
not possible because the defects
are too serious, the valve must be
replaced.
Check the flushing tubes and seals
and the water pressure. Drain
water from the compressed air
system. If the problem continues,
fit a water separator in the airline
system.
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Solution