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水ポンプ Alemite 9968-MのPDF サービスマニュアルをオンラインで閲覧またはダウンロードできます。Alemite 9968-M 16 ページ。 Low-pressure stub pump
Alemite 9968-M にも：サービスマニュアル (11 ページ)

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Troubleshooting chart

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 first two (2) threads Contamination can occur

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)

Solutions

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 external pipe threads

and tighten extension

1 Replenish product

2 Apply thread sealant

to external pipe

Threads and tighten extension

1 Operate 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 external 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