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水ポンプ Dover Hydro Xtreme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。Dover Hydro Xtreme 4 ページ。 Diaphragm pump

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Step 6: Rebuild Diaphragm Assembly

a) To rebuild the diaphragm assembly, start by reinstalling

the original protective diaphragm, followed by the original

auxiliary ring.

(Note! The auxiliary ring is keyed. Please make sure it lines

up accordingly.)

b) Install the new diaphragm by screwing it in clockwise until it

is hand tight.

c) Once the diaphragm is secure, install the new outer O-ring

into its channel.

d) Finally, you can reinstall the pump head to the pump body.

Tighten the four screws a little at a time in an "X" pattern,

like upper left, lower right, lower left then upper right.

Step 7: Rebuild Pump Discharge Fitting

The discharge fitting on your Hydro Xtreme pump is at the top.

a) Start by loosening the compression nut (counter-clockwise),

with a 1 1/8" (290 mm) wrench or an adjustable wrench.

When loosened, unscrew the nut completely and set the

nut, the retaining ring and discharge tube aside.

b) Unscrew the rest of the discharge fitting from the pump

body, using the same size wrench. Remove it from the

pump and slide the O-ring, check valve(s) and spacer from

inside. Take care of the spacer, as it may have to be reused.

c) Replace the spacer, check valve(s) and O-ring with new

parts, and reassemble them into the discharge fitting.

NOTE: The black ring end of a check valve always faces the

flow, so here they are always towards the bottom.

NOTE: The new spacer should be the same size as the old

one. If not, re-use the old spacer and please notify Hydro

Systems of the discrepancy.

Step 6a:

Reinstall

Protective

Diaphragm

and

Auxiliary

Ring

Step 6b:

Install

New

Diaphragm

Step 6c:

Install

New

Outer

O-ring

Step 6d:

Reinstall

Pump

Head

Step 7a:

Remove

Compres-

sion Nut,

Retaining

Ring and

Tubing

Step 7b:

Remove

Discharge

Fitting

Step 7c:

Rebuild

Discharge

Fitting with

New Parts

This check-valve orientation is correct

only for the upper (discharge) fitting

Tighten

Screws

in "X"

Pattern