Technical data

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Apply grease.
Apply grease.
Replace the abnormal part.
Readjust the safety bolt
according to 10-3-(2).
Short of oil on both inside
and outside surfaces of the
cylinder (worn or damaged).
Exhaust valve is abnormal or
short of oil (worn or
scratches on seat side).
Safety belt is not adjusted
properly.
Check for shortage of
grease on the sliding
surface of the O-ring.
Disassemble the exhaust
valve section and check for
abnormality or shortage of
oil.
Check that the distance
between the lower end of
the nose and the lower end
of the pushing lever is
6.5 0.5 mm (0.256
0.020") under the following
conditions.
Pull up plunger (B) until it
contacts plunger (A).
Pull up the pushing lever
until plunger (B) contacts
the safety bolt.
Replace the abnormal part. Piston O-ring is abnormal
(worn or damaged).
Cylinder inside surface is
abnormal (worn or rough).
Cylinder O-ring is abnormal
(worn or damaged).
Sliding surface of the
circmference of the cylinder
is abnormal (worn or
damaged).
Problem
Possible cause
( : Most-common cause)
Inspection method Remedy
3) Nails cannot
be driven into
the workpiece
completely:
the heads
cannot be
made flush.
(continued)
Disassemble the output
section and check inside
and outside surfaces of the
O-ring and the cylinder for
abnormality.