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4.6.2 Dismantling the Air Shield Valve
Referring to DIAG 9 above:
Screw out the Valve Screw
(G)
.
Carefully remove the Valve Cap
(F)
and ‘O’ Ring
(H)
. Use an air line to gently blow down
the hole in both the Valve Cap and Valve Retainer
(B)
. Discard the exposed diaphragm
and ‘O’ Rings.
To extract the Valve Retainer and Diaphragm Disc
(B)
turn the ‘Speed Control’ Needle to
the ‘slow’ position and with compressed air connected to the motor, press the trigger to lift
the valve assembly by air pressure from below.
Push the Valve Retainer back into the cavity with the finger to release the second ‘O’ Ring
then remove the retainer, disc and Diaphragm.
WHEN & WHY?
The Air Shield Valve should only be dismantled when it is absolutely necessary. For example:
Wire melts back onto the Nozzle.
DIAG 9
D
E
A
G
F
H
B
Summary of Contents for MK 73
Page 1: ...Page 1 of 64 ssue 21 11 11 ...
Page 43: ...Page 43 of 64 SECTION 5 FAULT FINDING 5 1 Troubleshooting 5 1 2 Flowmeter Troubleshooting ...
Page 58: ...Page 58 of 64 SECTION 8 INFORMATION TABLES 8 1 Flowmeter Settings 8 2 Nozzle Selection Chart ...
Page 61: ...Page 61 of 64 Notes ...
Page 62: ...Page 62 of 64 ...
Page 63: ...Page 63 of 64 ...