Alemite 7216-S Service-Handbuch - Seite 10
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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
Product leakage visible at bottom
of Body Assembly (15)
Product leakage at exhaust port in
Body Assembly (15)
Product leakage between Cylinder
(17) and Valve Body (25)
Product leakage between Valve
Body (25) and Extension (26)
Internal Leaks
Pump does not prime or cycles
continuously, or
slowly (once or twice/hour)
Revision (10-02)
Troubleshooting Chart
Possible Problems
1. Packings (12) too tight
2. Air motor not operating properly
3. Pump tube jammed and/or contains
loose components
4. Insufficient air pressure
1. Excessive cycling speed
2. Pump leaking internally
Product source empty
1. Pump requires break-in period
2. Pump leaking internally
3. Pump leaking externally
4. Distribution system leaking
1. Damaged Gasket (16)
2. Cylinder (17) not sufficiently tight
1. Packings (12) too loose
2. Worn or damaged Packing(s) (12)
3. Worn or damaged air motor piston rod
1. Worn or damaged Gaskets (16)
2. Valve Body (25) not sufficiently tight
Extension (26) not sufficiently tight
1. Foreign material between Ball (24) and
Valve Body (25)
2. Foreign material between Valve (19)
and Plunger (21)
3. Worn or damaged Ball (24)
4. Worn or damaged Valve Body (25)
5. Worn or damaged Valve (19)
6. Worn or damaged Plunger (21)
Changes Since Last Printing
Deleted Minor Repair Kit to 393624
10
Stainless Transfer Pump
Solution
1. Adjust Packing Screw Assembly (9)
2. Inspect air motor and rebuild or
replace as necessary
3. Rebuild pump tube
4. Increase air pressure
1. Reduce air pressure
2. See Internal Leaks
Replenish product
1. Operate the pump against moderate
fluid pressure for up to one hour
2. See Internal Leaks
3. See External Leaks
4. Correct leak
1. Replace Gasket (16)
2. Tighten Cylinder (17) into Body
Assembly (15)
1. Adjust Packing Screw Assembly (9)
2. Use Kit 393309-2
3. Replace air motor piston rod
1. Replace Gaskets (16)
2. Tighten Valve Body (25) into
Cylinder (17)
Tighten Extension (26) into Valve
Body (25)
Locate and eliminate source of foreign
material
Disassemble pump tube, clean,
inspect, and replace worn or damaged
components
Alemite Corporation