Dosmatic SUPERDOS 20 - Trouble Shooting

TROUBLE SHOOTING:
NO CLICKING SOUND
1. Water ow rate exceeds rated service ow of injector: Reduce ow rate (See Specications
Pg. 13).
2. Operating pressure exceeds maximum limit: Install a pressure reducer valve (See Specica-
tions Pg. 13).
3. #17 o-ring if leaking: Replace.
4. Main piston assembly #9 worn: Replace #9 and install a 104 micron lter before injector to
remove abrasive particules from water.
5. Cover #1 or main body #40 bores worn or scored: Lightly sand inside diameter of bores to
remove scoring grooves. Install a 104 micron lter to remove abrasive particles from water.
6. Poppets (Upper or Lower) are off poppet arms:
Replace all poppet assemblies and reduce
ow and/or pressure.
CLICKING SOUND WITHOUT SUCTION OF SOLUTION
1. Dosage piston #44 and o-ring retainer #15 are installed incorrectly: Be sure #44 dosage
piston is installed thin lips up.
2. Dosage piston #44 worn: Replace as necessary.
3. O-ring seat #14 or dasage piston 344 damaged: Replace as necessary.
4. #7 cylinder is worn or scored: Replace
5. #17 o-ring is worn and/or loose: Replace
6. Suction tube #25 or suction tube tting #11 cracked & leaking: Replace as necessary
7. Clogged suction tube lter: Replace and/or clean as necessary.
8. Check valve #13 leaking: Clean & replace as necessary.
WATER RE-FILLING SOLUTION TANK
1. Check valve #13 leaking: Check seat area on suction tube tting #11. Check valve and seal
must t loose in the suction tube tting.
2. Washer seal on #13 is swollen: Replace with new check valve assembly.
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