--- 19 ---
Check the sliding surface for
abnormality and lubrication.
Replace the part.
Replace the abnormal part.
Driver blade is worn.
Piston ring is abnormal
(worn or damaged).
Cylinder inside surface is
abnormal (worn or rough).
Perform idle driving to check
the driver blade is projected
from the nose tip.
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)
4) Nails jam.
<Nails>
Unspecified nails are used.
Abnormal nails are mixed.
Nail heads are too large or
too small.
[Wire-collated nails]
Collating wires are abnormal
(broken, welding failed,
deformed or welding
position failed).
Collating wires are
deformed (deformed in
collation angle or collation
pitch).
[Sheet-collated nails]
Collating sheets are
abnormal (deformed or
broken).
Nails are removed from the
sheets.
Use specified nails.
Remove the abnormal nails
and load the nailer with
proper nails.
Check if the specified nails
are used.
Check the nails as follows.
Head valve sliding surface is
abnormal (seized or
damaged, or lubrication is
needed).
Disassemble the output
section and check the
piston ring and the inside of
the cylinder for abnormality.
Replace the abnormal part.
Apply grease.
[Wire-collated nails]
[Wire-collated nails]
Type
L
1
d
2.1 --- 2.3
(0.083 --- 0.090 )
A
2.5 --- 2.8
(0.099 --- 0.110 )
12
(0.472)
24
(0.945)
L
2
B
D
4.8 --- 6
(0.189 --- 0.236)
[Sheet-collated nails]
[Sheet-collated nails]
d
D
5 --- 6
(0.197 --- 0.236)
2.4 --- 2.8
(0.094 --- 0.110)
Unit: mm (inch)
Unit: mm (inch)
6 or 8
(0.236 or 0.315)
19
(0.748)
37.5
(1.476)
Disassemble the exhaust
valve rubber (A) and check
for abnormality.
Exhaust valve rubber (A) is
abnormal (worn or damaged,
or seal face is scratched).
Replace the part.
Summary of Contents for NV 65AF3
Page 45: ......
