Alemite 9968-M Manuale di servizio - Pagina 10

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SER 9968

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

weep hole in Body (8)

Product leakage visible at

bottom of Body (8)

Air leakage at weep hole in

Body (8)

Product leakage visible

between Tube (21) and Foot

Valve (27)

Internal Leaks

Continuous slow air leak

Pump does not prime or

cycles continuously, or slowly

(once or twice/hour)

* Do not apply thread sealant to the first two (2) threads. Contamination can occur.

Revision (8-10)

Troubleshooting Chart

Possible Problems

1. Air motor not operating properly

2. Pump tube jammed and/or contains

loose components

3. Insufficient air pressure

1. Excessive cycling speed

2. Pump leaking internally

3. Extension not sufficiently tight and/or

thread sealant missing or inadequate

1. Product source empty

2. Extension not sufficiently tight and/or

thread sealant missing or inadequate

1. Pump requires break-in period

2. Pump leaking internally

3. Pump leaking externally

4. Distribution system leaking

5. Extension not sufficiently tight and/or

thread sealant missing or inadequate

1. Damaged Seal (12)

2. Damaged Rod (15)

1. Tube (21) not sufficiently tight

2. Damaged O-Ring (19)

Damaged Seal (10)

1. Foot Valve (27) not sufficiently tight

2. Damaged O-Ring (26)

Worn or damaged O-Ring (7)

1. Foreign material between Ball (17)

and Valve Seat (18)

2. Foreign material between Ball (25)

and Foot Valve (27)

3. Worn or damaged Ball (17)

4. Worn or damaged Valve Seat (18)

5. Worn or damaged Ball (25)

6. Worn or damaged Foot Valve (27)

7. Worn or damaged Nylon Piston (16)

Changes Since Last Printing

Added item 5 to Repair Kit. Items 8 and 13 no longer available

1. Inspect air motor and rebuild or replace as

necessary

2. Rebuild pump tube

3. Increase air pressure

1. Reduce air pressure

2. See Internal Leaks

3. Apply thread sealant* to male pipe

threads and tighten extension

1. Replenish product

2. Apply thread sealant* to male pipe

threads and tighten extension

1. Operate the pump against moderate fluid

pressure for up to one hour

2. See Internal Leaks

3. See External Leaks

4. Correct leak

5. Apply thread sealant* to male pipe

threads and tighten extension

1. Replace Seal (12)

2. Inspect Rod (15) and replace as necessary

1. Tighten Tube (21) into Body (8)

2. Separate Tube (21) from Body (8) and

replace O-Ring (19)

Replace Seal (10)

1. Tighten Foot Valve (27) into Tube (21)

2. Separate Foot Valve (27) from Tube (21)

and replace O-Ring (26)

Replace O-Ring (7)

Locate and eliminate source of foreign

material

Disassemble pump tube, clean, inspect, and

replace worn or damaged components

Low-Pressure Stub Pump

Solution

Alemite, LLC