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8-2. Possible Causes and Corrections for Air Leakage
Air leakage repairing position
(a)
(A)
(B)
(e)
(f)
A
(D)
Air leakage portion
(A) Exhaust port
(B) Exhaust cover
(C) Nose 1
(Feed piston passage)
(b)
(c)
(d)
(F)(G)
(C)
A
Cross section A --- A
When the trigger is turned off
Abnormality in Head Valve (A) [12]
and the Cylinder [20] [Wear and
deformation of the sealed face of the
(b) section]
Abnormality in the Head Valve O-ring
(I.D 16.8) [11] or wear, deformation
and/or breakage of Head Valve (A)
[12]
Abnormality (damage) in the Exhaust
Cover [8]
Looseness of the Hex. Socket Hd.
Bolt M5 X 20 [7]
Damage of Gasket (A) [9]
Abnormality in the sealed faces of
the Body Ass'y [22], Exhaust Cover
[8] and the Cylinder [20]
(H)
(E)
Cause
--- 19 ---
Repairing step
(1) Check for abnormality in the
parts marked *(asterisk) out of
the following parts.
(2) Check for wear, scratches and
damage in the parts marked
(circle).
(3) Next, examine other portions.
(The numbers in [Bold]
correspond to the item numbers
in Parts List and the exploded
assembly diagrams.)
(F)
Control valve section
When the trigger is turned on
Abnormality in Head Valve (A) [12]
[Wear, deformation and/or breakage
of the section (a)]
* Abnormality in the inner face [the
section (a)] in the Exhaust Cover [8]
[Deformation and dust clogging in
the section (a)]
Looseness of the Hex. Socket Hd.
Bolt M6 X 20 [34]
Scratched and/or broken O-ring
(1AP-3) [32]
Abnormality in the sealed faces of
the Body Ass'y [22] and the Nose
[33]
(g)
(h)
(G)
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