30
Dymax SG-200 High-Flow Spray Gun System User Guide
1.
Begin disassembly by removing air and fluid pressure from the valve.
2.
Remove all pneumatic tubing and fluid delivery fittings, hoses, etc. from the valve.
3.
Using th
e tip of a 3/32” Allen key, loosen the packing nut
(6).
4.
Using the same 3/32” Allen key, evenly remove the two machine screws
(21) that are located on the same
corners as the fluid section standoffs (4).
NOTE:
During removal that there is a spring (13) forcing the air section away from the fluid section.
5.
Pull the air section (red anodized portion) away from the fluid section (stainless steel portion).
6.
Clean off the tip of the stainless steel needle (3).
7.
From the fluid section of the valve, unthread and remove the packing nut (6), and the packing (5).
8.
Unthread and remove the collar ring (12) followed by the air cap (1).
9.
Place an M7 wrench onto the flats of the seat extension to hold in place, then use an adjustable wrench to
unthread and remove the seat (2).
10.
Place the M7 wrench on the flats of the seat extension to unthread and remove from the fluid section
followed by the 007 Kalrez® o-ring (19).
NOTE:
An adjustable wrench may be used on the fluid section to separate the parts.
11.
Clean all the wetted parts thoroughly with an appropriate solvent.
12.
On the air section, use a standard 3/32” Allen key to evenly remove the final two machine screws (2
0)
that thread into the end cap (7).
NOTE:
During removal that the spring (13) will force the air section apart.
13.
Separate the upper air body (10) from the lower air body (8) to remove the spring (13) then slide the end
cap (7) off the needle (3).
14.
Holding the lower air body (8) in one hand, grab the needle (3) and push the needle and piston (9)
assembly out of the lower air body.
15.
Remove the 004 Buna o-ring (18) from the lower air body (8).
16.
Hold the piston (9) with an adjustable wrench,
then use a 5/64” Allen key to unthread and remove the set
screw (14) to remove the needle (3) then remove the 014 Buna o-ring (16) from the piston (9).
17.
Remove the 014 Buna o-ring (16) from the upper air body (10
) then use a 1/16” Allen key to remove the
set screw (15).
18.
Using soft tip pliers grip the collar or midsection of the micrometer (1) and turn counter-clockwise to
loosen then unthread and remove from the upper air body (10) by hand.
19.
Remove the 007 Buna o-ring (17) from the micrometer (11).
