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English: 13
New Install - Always Pressure Up Slowly (Follow start up on page 9)
Problem
Cause
Solution
No Clicking
Sound
Fluid not flowing through system
Are the red plugs at the inlet, outlet and suction tube fitting openings removed?
Is the unit installed backward? The arrow on the unit must point in the
direction of the fluid flow.
If still not clicking, do not open the upper body. Call Hydro Systems
Customer Service.
Fluid flowing through system
Fluid rate is below or exceeds rated service flow of injector. (see
Specifications page 6).
Has the new injector been stored for an extended period. If so, submerge
the injector in room temperature fluid for 24 hours so that the working
parts can reabsorb fluid and swell back to the proper size.
If below increase flow rate, if above, reduce flow rate.
Operating pressure exceeds maximum limit. Install a pressure reducer
valve. (see Specifications page 6).
By-Pass Valve (A pg.9) not closed. Check and set valve to the OFF
position.
Problem
Cause
Solution
Clicking
Sound
No Suction Of
Solution
Cylinders #7 or #68 worn.
Replace.
Dosage piston/gasket
(WSP model)
#44 (0.3% model #51) worn or
installed incorrectly
R
eplace. Ensure during maintenance replacement that #44 was
installed correctly flared-end up.
O-ring retainer #15 installed
incorrectly
Install correctly.
O-ring seat #14 or dosage piston/
gasket #44 (0.3% model #51)
damaged
Replace.
#17 O-ring worn and/or loose
Replace.
Suction tube #25 or suction tube
fitting #11 cracked, leaking or
clogged suction tube filter
Replace and/or clean as necessary.
Check valve #13 leaking
Clean & replace as necessary.
Problem
Cause
Solution
F
luid
Re-filling
Solution Tank
Check valve #13 leaking
Check seat area on suction tube fitting #11. Check valve and seal must
fit loose in the suction tube fitting. Clean seal and inside fitting for debris.
Washer seal on #13 is swollen or
chemical attack
Replace with new check valve assembly.
Problem
Cause
Solution
No Clicking
Sound
Main Piston Assembly #9 worn
Replace # 9 Main Piston Assembly. Clean fluid filter.
Cover #1 or main body #40 worn
or scored
Replace and install or clean fluid filter.
By-Pass Valve (A) not closed
Set By-pass valve (A) to the closed position.
Dirty or plugged inlet filter
Ensure mesh size is correct for proper filtration. Clean filter.
#17 Worn or not seated properly
Re-seat #17 or replace.
Troubleshooting
Injector in Operation or After Scheduled Maintenance
Problem
Cause
Solution
Clicking
Sound.
Under
Injecting
#44 (0.3% model #51) Dosage
Piston/gasket
(WSP model)
worn
Replace.
#7 (#68 - 0.3%) Inner Cylinder worn Replace.
Unit operates at high-flow and not
at low flow
Replace #17 O-ring.
Main Piston Assembly #9 worn
Replace # 9 Main Piston Assembly. Clean fluid filter.
Cover #1 or main body #40 worn
or scored
Replace and install or clean fluid filter
.
