Service Checks - DeVilbiss AGGS-522 Operation Manual

E
1) No pressure at the gun
A
2) Piston stops moving
1) Material build-up on air cap/fluid
B-C tip
2) Worm or damaged seal (5)
1) Material too thick or too much
D
1) Not enough material
E
1) Insufficient material in tank or an
obstruction in the hose.
2) Gun material passage blocked
F
3) Worn packing (12)
4) Loose or damaged fluid tip
1) Packing worn (12)
G
2) Rough needle shaft (16)
1) Worn packing (12)
2) Worn or damaged fluid tip (3) or
H
needle (16)
3) Worn seals

SERVICE CHECKS

CAUSE
10
CORRECTION
1) Check air/material lines
A
2) Check adjusting knob (36)
1) Clean air cap/fluid tip
B-C
2) Replace seal.
1) Thin or reduce material flow
D
1) Reduce air pressure or increase
E
material flow
1) Fill tank or clear obstruction
2) Clean.
F
3) Replace.
4) Tighten or replace.
1) Replace packing
2) Polish contact point with packing with
G
fine emery cloth
1) Replace
2) Replace
H
3) Replace valve (18).
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