Avdel T51 Manuel D'instructions page 30

F a u l t D i a g n o s i s
S y m p t o m P o s s i b l e C a u s e
Jaw segments do not Improper operation of jaw
maintain proper follower
position in collet
Hydraulic couplers Defective or worn 'O' ring in
leak oil coupler body
Pintail fails to release Incorrect assembly of Nose
14
R e m e d y
Check internal parts of the
collet for wear i.e. jaws,
follower, cushion and end cap.
Clean before reassembling
Replace 'O' ring and back-up ring
Refer to nose assembly drawing on page 5
P a g e R e f