Parts Replacement/Maintenance; Servicing Air Valve - DeVillbiss TEKNA BASECOAT Boletín Técnico

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Parts Replacement/
Maintenance
AIR VALVE INSTRUCTIONS

Servicing Air Valve

Reasons to service air valve:
A) Air valve not functioning properly
(may need cleaning).
B) Routine maintenance.
1. Remove trigger using a Star (T20) driver. (See
pictures 7-1 & 7-2)
2. Unscrew air valve using 14 mm wrench.
(See picture 7-3)
3. Remove air valve by gripping stem.
(See picture 7-4)
4. Remove spring with spring pad.
(See picture 7-5)
5. DO NOT REMOVE REAR SEAL FROM GUN
BODY. (See picture 7-6)
6. DO NOT REMOVE PLASTIC CAGE FROM
AIR VALVE BODY AS THIS MAY DAMAGE
THE CAGE. (See picture 7-7)
7. CLEAN
a. Remove all paint build up.
(See picture 7-8)
b. The 4 poppet holes must be clear.
(See picture 7-9)
c. Stem must be free to float in poppet.
(See picture 7-10)
d. Stem must slide through cage bore
with slight resistance (due to seal).
e. Rear seal must look clean and in
position in the bore. (See picture 7-6)
f. If any of the above cannot be rectified,
replace the air valve (See Replacing
Air Valve).
8. Replace spring ensuring the end with
the plastic bearing pad goes in first.
(See picture 7-5)
9. Insert air valve assembly into gun and carefully
feed through the rear seal
and over the spring. (See picture 7-11)
10. Tighten air valve assembly using fingers
first, then wrench tighten with 14 mm wrench.
(See pictures 7-12 & 7-3)
11. Replace trigger. (See pictures 7-2 & 7-1)
12. If there is an air leak through the gun,
the air valve may need replacing (See Replacing
Air Valve).
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SPRING PAD GOES
IN FIRST
AIR VALVE BODY
PLASTIC CAGE
ALL POPPET
HOLES MUST
BE CLEAR
7-11
8 / 16
7-1
7-3
7-5
7-7
7-9
WIGGLE TO BE SURE
THAT STEM FLOATS
IN POPPET
TB-1018-R1 (2/2018)
7-2
7-4
7-6
REAR SEAL IN
GUN BODY
7-8
7-10
7-12