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300-301 FLOW GUN 1/4 inch SEAT TUNGSTEN CARBIDE
DISASSEMBLY INSTRUCTIONS
1) Unbolt the Acorn nut and Shoulder screw and
remove the Trigger
2) Unscrew the adjustment screw and remove the
Spring.
3) Remove the Collar and Nozzle.
4) Remove the Valve Seat.
5) The U-ring can be pushed out from the side of
the body.
6) Push the Valve rod assembly out of the body.
7) Using a large flat screwdriver remove the
Packing nut and O’ring.
8) Clean and inspect all parts.
ASSEMBLY INSTRCTIONS
1) Align the holes between the Valve and Stem
and press the roll pin flush with the Valve.
2) Install a lubricated 350-420 O’ring into the
Packing Nut bore.
3) Install the back-up-rings and O’ring into the
Packing Nut and Lubricate.
4) Tighten the Packing Nut into the Body with a
large flat screwdriver.
5) Push the Valve Rod assembly though the
body. (see diagram above)
6) Slide the Trigger Plate and Spacer Sleeve over
the Stem.
7) Install the U-bolt on the Stem.
8) Place the Spring in the Adjusting Screw and
thread it into the Body.
9) Install the 350-167 O’ring on the Seat and
lubricate.
10) Thread the Valve Seat into the body and
tighten.
11) Install the Trigger and tighten the Acorn nut
and Shouder Screw.
12) Install Nozzle and Collar.
400-667
COLLAR
400-690
VALVE SEAT
350-167
O’RING
400-691
VALVE-TC
350-306
ROLL PIN
400-279
STEM
350-166 (2)
BACK UP
350-165 (2)
O’RING
350-420
O’RING
400-160
PACKING
NUT
400-158
TRIGGER
PLATE
400-154
SPACER
SLEEVE
400-872
U-RING
400-164
SPRING
400-155
ADJUSTING
SCREW
400-153
BODY
400-161
TRIGGER
400-873
SHOULDER
SCREW
350-335
ACORN NUT
300-919
VALVE ROD ASSEMBLY