-17-
Possible causes
Air leak point
Control valve OFF
Control valve ON
Control valve
exhaust port
Defect on O-Ring (P7-U)
[89]
of Valve
Piston
[91]
(worn, cut or flaws)
Defect on O-Ring (I.D 1.8)
[94]
of Plunger
[95]
(worn, cut or flaws)
Defect on O-Ring (S-14)
[86]
of Valve
Bushing (B)
[88]
(worn, cut or flaws)
* Defect on inner surface of Body Ass’y
[42]
valve chamber (
part)
Defect on O-Ring (1AP-11)
[92]
and O-
Ring (P9-U)
[90]
of Valve Piston
[91]
(worn, cut or flaws)
Defect on O-Ring (S-16)
[87]
of Valve
Bushing (B)
[88]
(cut or flaws)
Defect on O-Ring (1AP-5)
[96]
of Valve
Bushing (A)
[98]
(worn, cut or flaws)
* Defect on Valve Plate
[24]
seal surface
(breaks, deformation, flaws on
part)
* Defect on the inner surface of Body Ass’y
[42]
valve chamber (
part)
Control valve
Defect on O-Ring (S-16)
[87]
and O-Ring
(S-6)
[97]
of Valve Bushing (A)
[98]
(worn,
cut or flaws)
Defect on sliding surface of Plunger
[95]
O-Ring (S-6)
[97]
(deformation or flaws on
part)
Defect on O-Ring (S-16)
[87]
and O-Ring
(S-6)
[97]
of Valve Bushing (A)
[98]
(worn,
cut or flaws)
Defect on sliding surface of Plunger
[95]
O-Ring (S-6)
[97]
(deformation or flaws on
part)
Valve Bushing
(air duster valve
section)
Break of Valve Packing
[26]
Defect on O-Ring (1AP-3)
[30]
(worn, cut or
flaws) or defect on Valve Bushing
[33]
seal
surface (flaws or breaks on
part)
Loose Valve Bushing
[33]
screw (left-
handed thread)
Cap
(Defects on O-Ring (I.D 37.2)
[61]
(worn,
cut or flaws))
Loose Cap (Gold)
[62]
screw (left-handed
thread)
Defects on seal surface of Body Ass'y
[42]
and Cap (Gold)
[62]
(damage, deformation
or flaws on
part)
F
G
H
I
