Alemite 7222-B4 Manuel D'utilisation page 13

Troubleshooting
Pump indications
Pump does not cycle
Pump will not prime
Pump cycles rapidly
Pump will not stall (cycles more than
once or twice/hour)
External leaks
Leaking visible at bottom of body (10)
Leaking at exhaust port in air
motor (1)
Leaking between cylinder (13) and
valve body (19)
Internal leaks
Pump does not prime or cycles
continuously, or slowly (once or
twice/hour)
Possible problems
Air motor not operating properly
Pump tube jammed and/or contains loose components
Insufficient air pressure
Excessive cycling speed
Pump leaking internally
Product source empty
Pump requires break-in period
Pump leaking internally
Pump leaking externally
Distribution system leaking
Damaged gasket (11)
Cylinder (13) not sufficiently tight
Worn or damaged seal (9)
Worn or damaged air motor piston rod
Worn or damaged gasket (11)
Foot valve body (19) not sufficiently tight
Foreign material between ball (18) and foot valve
body (19)
Foreign material between washer (14) and plunger (15)
Worn or damaged ball (18)
Worn or damaged foot valve body (19)
Worn or damaged washer (14)
Worn or damaged plunger (15)
13
Solution
Inspect air motor and rebuild or replace as
necessary
Rebuild pump tube
Increase air pressure
Reduce air pressure
See Internal leaks.
Replenish product
Operate pump against moderate fluid pressure
for up to one hour
See Internal leaks.
See External leaks.
Correct leak
Replace gasket (11)
Tighten cylinder (13) into body (10)
Use minor repair kit 393488.
Replace air motor piston rod
Replace gasket (11)
Tighten foot valve body (19) onto cylinder (13)
Locate and eliminate source of foreign material
Disassemble pump tube, clean, inspect, and
replace worn or damaged components