Atlas Copco Secoroc FT Series, Инструкция оператора и список запасных частей

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8
Trouble shooting
Low penetration rate may be caused by insufficient feed force from the pusher leg,
check the following points:
h Increase the angle between pusher leg and drilling surface.
h Ring in cross arm wears out; seals between cylinder and back head are worn out.
Replace defective seals.
h Loose connection between frame body and outer pipe; lose or defective seal pad
at the end of air tube and double YX seals, replace seals.
h
Trigger on back head and change over valve are blocked, repair.