SECTION 4 / DETERGENT DELIVERY FAILURE SOLUTIONS
5. Remove tube from nipple
• Remove detergent non-return check valve.
(figure 29)
• Inspect non-return check valve for clogs.
Note: Leaving detergent in pump will cause ball to stick.
6. Reinstall non-return check valve, nipple, metering knob and hose.
B. Nozzle Insert
1. Remove nozzle insert with a
screwdriver.
2. Pull out nozzle insert. (figure 34)
3. Check nozzle for wear and damage.
4. Check that opening through nozzle is not clogged.
Clear opening if necessary.
A. Pump Not Drawing Detergent
or Water Exiting Detergent Tube
1. Check that nozzle is in low/chemical position.
(figure 27)
2. Check that metering valve on pickup filter is open.
(figure 28)
3. Check pickup filter for clog.
4. Check detergent tube for holes and kinks.
17
A. Pump Not Drawing Detergent or Water
Exiting from Detergent Tube
B. Nozzle Insert
figure 28
figure 29
figure 34
figure 27
Pump 785 9/28/01 3:06 PM Page 17
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