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Repair
311322K 13
Repair
Side Blocks
1. Follow Pressure Relief Procedure, page
12.
2. See FIG. 7. Remove A-side screen screw,
seal, and screen. Inspect for damage.
Thoroughly rinse and dry screen. Hold
screen up to a bright light; mesh must be
free of particles and material buildup.
Replace as necessary. Repeat for R-side.
3. Alternately loosen side block mounting
screws. Carefully separate side blocks from
gun. Wipe mating surfaces with a rag
soaked in gun cleaner.
4. Remove check valve retainer/side seal
assembly from A-side block.
Shutdown proportioner and allow chemicals
to cool before performing any repair proce-
dures.
FIG. 7. Side Block Components
2
Manual Valve Assembly
Check Valve Assembly
Spring
Check Valve Retainer
Side Seal
O-Ring
Side Seal Assembly
Swivel Fitting
Screen
Screen Screw
Screen Screw Seal
Side Block