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Air leakage point
(C) Blade guide
(D) Air outlet, valve bushing
(E) Control valve (1)
(F) Control valve (2)
(G) Cap (A)
With control valve OFF
The Cylinder O-Ring (I.D 63.1) [12] is
abnormal (broken or damaged).
The seal surface of the Body Ass'y
[29] is abnormal ( c portion)
The Valve Packing [16] is damaged.
The O-Ring (1AP-3) [19] of the
Plunger [18] is abnormal (worn,
broken or damaged).
The O-Ring (S3) [20] of the Plunger
[18] is abnormal (worn, broken or
damaged).
The screw of the Valve Bushing [22]
is loose.
The O-Ring (I.D 11) [64] on Valve
Piston (B) [63] is abnormal (worn,
broken or damaged).
The lower O-ring (I.D 8.8) [61] on
Valve Piston (B) [63] is abnormal
(worn, broken or damaged).
The O-Ring (S-18) [60] on Valve
Bushing (B) [59] is abnormal (broken
or damaged).
The inside surface of the valve
chamber of the Body Ass'y [29] is
abnormal.
The O-ring (I.D 1.8) [67] on Plunger
(A) [66] is abnormal (worn, broken or
damaged).
Valve Bushing (A) [68] is abnormal
(sliding surface of Plunger (A) [66] is
deformed or scratched).
Gasket (B) [47] is damaged.
The Hex. Socket Hd. Bolt M5 x 16 [49] is loose.
The seal surface of the Body Ass'y [29] or Cap (A) [48] is abnormal (broken,
deformed or scratched).
--- 20 ---
Possible cause
With control valve ON
The Piston Bumper [25] is abnormal
( d or e portion is damaged,
deformed or cracked).
The Piston [15] is abnormal (driver
blade or sealed face is deformed).
The e surface of the Body Ass'y [29]
is deformed.
The upper O-Ring (I.D 8.8) [61] on
Valve Piston (B) [63] is abnormal
(worn, broken or damaged).
The Head Valve O-Ring (I.D 16.8)
[58] on Valve Bushing (B) [59] is
abnormal (broken or damaged).
* The Top surface of the valve chamber
of the Body Ass'y [29] is abnormal
( f portion).
The inside of the O-ring (S-4) [62] on
Valve Piston (B) [63] is abnormal
(worn, broken or damaged).
Plunger (A) [66] is abnormal (sliding
surface is deformed or scratched).
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