User's Manual

— 32 —
English
Nails are not be-
ing counter sunk
into wood and
are left sticking
out of wood.
(cont.)
The Piston Cushion
(Ref. #10) could be
damaged prevent-
ing the Piston (Ref.
#56) from complet-
ing full stroke.
Contact Hitachi for replace-
ment.
Nailer does not
operate when
trigger is pulled.
This is a safety
feature
The Nailer is not supposed
to operate when the Trigger
is pulled. In order to operate
the Nailer, the Trigger must be
pulled and the Ram Head (Ref.
#47) tapped with the hammer,
in that order.
Ram is stuck in
down position
Air pressure too
low.
Set air pressure to 100-115 PSI
Driver Blade (Ref.
#58) could be bent
Contact Hitachi for replace-
ment.
Oil could have been
used in the tool
Contact Hitachi for replace-
ment.
Cylinder Cushion
Ring (Ref. #5) could
be loose or dam-
aged or has been
installed upside
down.
Contact Hitachi for replace-
ment.
Tool partially
operates when
air hose is con-
nected
Main Valve (Ref.
#41) is not seating
in Valve Housing
(Ref. #46).
Contact Hitachi for replace-
ment.
O-Rings on the
Discharge Valve
(Ref. #11) may be
damaged.
Contact Hitachi for replace-
ment.
Discharge Valve
Springs (Ref. #9)
not aligned
Contact Hitachi for replace-
ment.
Cylinder Exhaust
Valve Screw (Ref.
#50) may be loose.
Contact Hitachi for replace-
ment.
Nailer partially
operates when
trigger is pulled
and before Ram
is struck
Main Valve Lip Seal
(Ref. #41) is not
sealing
Contact Hitachi for replace-
ment.