English: 12
New Install - Always Pressure Up Slowly (Follow start up on page 9)
Problem Cause Solution
No Clicking
Sound
Fluid not fl owing through unit
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 fl owing through unit
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.
Operating pressure exceeds maximum limit. Install a pressure reducer
valve. (see Specifi cations page 6).
On/Off Lever in off position. Place the On/Off lever switch to the ON
position.
By-Pass Valve (A) not closed. Check and set valve to the CLOSED 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
Replace. Ensure during maintenance replacement that #44 dosage
piston was installed correctly fl ared-end up.
O-ring retainer #15 installed
incorrectly
Install correctly.
O-ring seat #14 or dosage piston/
gasket (WSP model) #44 (0.3%
model #51) damaged
Replace.
#17 O-ring worn and/or loose Replace.
Suction tube #25 or suction tube
fi tting #11 cracked, leaking or
clogged suction tube fi lter
Replace and/or clean as necessary.
Check valve #13 leaking Clean & replace as necessary.
Problem Cause Solution
Fluid
Re-fi lling
Solution Tank
Check valve #13 leaking 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.
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 fl uid fi lter.
Cover #1 or main body #40 worn
or scored
Install or clean fl uid fi lter.
On/Off Lever in off position Place the On/Off lever switch to the ON position.
By-Pass Valve (A) open Set Valve (A) to the closed position.
Dirty or plugged inlet fi lter Ensure mesh size is correct for proper fi ltration. Clean fi lter.
#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-fl ow and not
at low fl ow
Replace #17 O-ring.
Main Piston Assembly #9 worn Replace # 9 Main Piston Assembly. Clean fl uid fi lter.
Cover #1 or main body #40 worn
or scored
Install or clean fl uid fi lter.
To Next Page
Loading...
