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Troubleshooting chart
Pump indications
Pump does not cycle.
Pump will not prime.
Product is aerated .
1)
Pump cycles rapidly.
Pump will not stall (cycles more than once or
twice/hour).
External leaks
Product leakage from weep hole in
air motor base.
Product leakage at upper tube (23).
Air leakage from weep hole in air motor base.
Product leakage visible between
upper tube (17) and lower tube (23)
Pump will not prime or product is aerated.
Internal leaks
Pump will not prime or pump will not stall
(cycles more than once or twice/hour).
1)
Should pump aerate product, see section Prove pump, page 14, for details.
Possible problems
1. Insufficient air pressure.
2. Air motor not operating properly.
3. Pump tube jammed and/or contains loose
components.
1. Pump leaking internally.
2. Improper seal between camlock adapter (14)
and camlock.
3. Bulk container connection fittings leaking.
4. Pump leaking externally.
1. Improper seal between camlock adapter (13)
and camlock.
2. Bulk container connection fittings leaking.
3. Pump leaking externally.
Product source empty.
1. Pump leaking internally.
2. Pump leaking externally.
3. Distribution system leaking.
1. Damaged upper u-cup seal (9).
2. Damaged air motor piston rod.
1. Pump tube not sufficiently tight.
2. Damaged o-ring (16).
Damaged seal (7).
1. Pump tube not sufficiently tight.
2. Damaged o-ring (21).
1)
Damaged o-ring (12).
1. Foreign material between check valve (20)
and upper valve seat (22).
2. Foreign material between lower valve
seat (26) and valve plate (28).
3. Worn or damaged check valve (20).
4. Worn or damaged upper valve seat (22).
5. Worn or damaged lower valve seat (26).
6. Worn or damaged valve plate (28).
7. Worn or damaged u-cup seal (19).
8. Worn or damaged lower rod (15).
9. Worn or damaged lower u-cup seal (9).
10. Worn or damaged lower tube (23).
15
Solution
1. Increase air pressure.
2. Inspect air motor and rebuild or replace as
necessary.
3. Rebuild pump tube.
1. → Internal leaks
2. Replace seal in camlock.
3. Seal fittings and tighten securely.
4. → External leaks
1. Replace seal in camlock.
2. Seal fittings and tighten securely.
3. → External leaks
Replenish product.
1. → Internal leaks
2. → External leaks
3. Correct leak.
1. Separate pump tube from air motor and replace
upper u-cup seal (9).
2. Inspect piston rod and replace as necessary.
1. Tighten pump tube assembly.
2. Separate pump tube from air motor and replace
o-ring (16).
Separate pump tube from air motor and
replace seal (7).
1. Tighten pump tube assembly.
2. Separate upper tube (18) from lower tube (23)
and replace o-ring (21).
Remove camlock adapter (13) and replace
o-ring (12).
Locate and eliminate source of foreign material.
Disassemble pump tube, clean, inspect and
replace worn or damaged components.
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