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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 body (12)
Visible at air motor base
Product leakage at bottom of body (12)
Visible on pump tube (28)
Air leakage from weep hole in body (12)
Felt at air motor base
Product leakage visible at weep hole in pump
tube (28) and/or adapter (44)
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 the pump aerate product, see section entitled Prove pump, page 8 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 (25)
and camlock
3 Bulk container connection fittings leaking
4 Pump leaking externally
1 Improper seal between camlock adapter (25)
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 seal (18)
2 Damaged air motor piston rod
1 Pump tube not sufficiently tight
2 Damaged gaskets (21)
Damaged seal (16)
1 Pump tube not sufficiently tight
2 Damaged gasket(s) (29)
1)
1 Damaged o-ring (24)
2 Damaged o-rings (11)
1 Foreign material between ball (39) and
adapter and insert assembly (41)
2 Foreign material between valve body (47)
and valve seat (48)
3 Worn or damaged ball (39)
4 Worn or damaged adapter and insert
assembly (41)
5 Worn or damaged valve body (47)
6 Worn or damaged valve seat (48)
7 Worn or damaged seal (32)
8 Worn or damaged piston (36)
9 Worn or damaged seal (46)
10 Worn or damaged primer rod (43)
16
Solutions
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
seal (18)
2 Inspect piston rod and replace as necessary
1 Tighten pump tube assembly
2 Separate pump tube from air motor and
replace gaskets (21)
Separate pump tube from air motor and replace
seal (16)
1 Tighten pump tube assembly
2 Disassemble pump tube and replace gaskets (29)
1 Remove camlock adapter (25) and replace
o-ring (24)
2 Replace o-rings (11)
Locate and eliminate source of foreign material
Disassemble pump tube, clean, inspect and
replace worn or damaged components
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