Troubleshooting - Hydro Systems Dosmatic SuperDos 20 0.3% Manual De Operación

New Install - Always Pressure Up Slowly (Follow start up on page 9)
Problem
Fluid not fl owing through system
No Clicking
Sound
Fluid fl owing through system
Injector in Operation or After Scheduled Maintenance
Problem
Main Piston Assembly #9 worn
Cover #1 or main body #40 worn
or scored
No Clicking
By-Pass Valve (A) not closed
Sound
Dirty or plugged inlet fi lter
#17 Worn or not seated properly
Problem
Cylinders #7 or #68 worn.
Dosage piston/gasket (WSP model)
#44 (0.3% model #51) worn or
installed incorrectly
O-ring retainer #15 installed
Clicking
incorrectly
Sound
O-ring seat #14 or dosage piston/
No Suction Of
gasket #44 (0.3% model #51)
Solution
damaged
#17 O-ring worn and/or loose
Suction tube #25 or suction tube
fi tting #11 cracked, leaking or
clogged suction tube fi lter
Check valve #13 leaking
Problem
#44 (0.3% model #51) Dosage
Piston/gasket (WSP model) worn
Clicking
#7 (#68 - 0.3%) Inner Cylinder worn Replace.
Sound.
Unit operates at high-fl ow and not
Under at low fl ow
Main Piston Assembly #9 worn
Injecting
Cover #1 or main body #40 worn
or scored
Problem
Check valve #13 leaking
Fluid
Re-fi lling
Washer seal on #13 is swollen or
Solution Tank
chemical attack

Troubleshooting

Cause
Are the red plugs at the inlet, outlet and suction tube fi tting openings removed?
Is the unit installed backward? The arrow on the unit must point in the
direction of the fl uid fl ow.
If still not clicking, do not open the upper body. Call Dosmatic Customer
Service.
Fluid rate is below or exceeds rated service fl ow of injector. (see
Specifi cations page 6).
Has the new injector been stored for an extended period. If so, submerge
the injector in room temperature fl uid for 24 hours so that the working
parts can reabsorb fl uid and swell back to the proper size.
If below increase fl ow rate, if above, reduce fl ow rate.
Operating pressure exceeds maximum limit. Install a pressure reducer
valve. (see Specifi cations page 6).
By-Pass Valve (A pg.9) not closed. Check and set valve to the OFF
position.
Cause
Replace # 9 Main Piston Assembly. Clean fl uid fi lter.
Replace and install or clean fl uid fi lter.
Set By-pass valve (A) to the closed position.
Ensure mesh size is correct for proper fi ltration. Clean fi lter.
Re-seat #17 or replace.
Cause
Replace.
Replace. Ensure during maintenance replacement that #44 was
installed correctly fl ared-end up.
Install correctly.
Replace.
Replace.
Replace and/or clean as necessary.
Clean & replace as necessary.
Cause
Replace.
Replace #17 O-ring.
Replace # 9 Main Piston Assembly. Clean fl uid fi lter.
Replace and install or clean fl uid fi lter
Cause
Check seat area on suction tube fi tting #11. Check valve and seal must
fi t loose in the suction tube fi tting. Clean seal and inside fi tting for debris.
Replace with new check valve assembly.
Solution
Solution
Solution
Solution
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Solution
English: 13