Blagdon Pump B75 Посібник з обслуговування та експлуатації - Сторінка 9

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Air Valve Assembly Drawing, Parts List

AIR DISTRIBUTION VALVE

SERVICING

To service the air valve first shut

off the compressed air, bleed pres-

sure from the pump, and disconnect

the air supply line from the pump.

STEP #1: See COMPOSITE

REPAIR PARTS DRAWING.

Using a 5/16" Allen wrench,

remove the four hex socket

capscrews (item 12) and four flat

washers (item 37). Remove the air

valve assembly from the pump.

Remove and inspect gasket

(item 18) for cracks or damage.

Replace gasket if needed.

STEP #2: Disassembly of the air

valve.

To access the internal air valve

components first remove the two

retaining rings (item 1-H) from each

end of the air valve assembly using

clip ring pliers.

Next remove the two end caps

(item 1-E). Inspect the o-rings (item

1-G) for cuts or wear. Replace the

o-rings if necessary.

Remove the two bumpers

(items 1-C). Inspect for cuts, wear,

or abrasion. Replace bumpers if

necessary.

520-319-000 Air Operated Double Diaphragm Pump

ITEM

1-A

1-B

1-C

1-E

1-G

1-H

Remove the spool (part of item

1-A) from the sleeve. Be careful not

to scratch or damage the outer

diameter of the spool. Wipe spool

with a soft cloth and inspect for

scratches or wear.

Inspect the inner diameter of the

sleeve (part of item 1-A) for dirt,

scratches, or other contaminants.

Remove the sleeve if needed and

replace with a new sleeve and spool

set (item 1-A).

STEP #3: Reassembly of the air

valve.

Install one bumper (item 1-C)

one end cap (item 1-E) with an

o-ring (item 1-G) into one end of the

air valve body (item 1-B). Install one

retaining ring (item 1-H) into the

groove on the same end.

Remove the new sleeve an spool

set (item 1-A) from the plastic bag.

Carefully remove the spool from the

sleeve. Install the six o-rings (item

1-G) into the six grooves on the

sleeve. Apply a light coating of

grease to the o-rings before install-

ing the sleeve into the valve body

(item 1-B), align the slots in the

sleeve with the slots in the valve

body. Inser t the spool into the

sleeve. Be careful not to scratch or

11/01

AIR VALVE ASSEMBLY PARTS LIST

PART NUMBER

DESCRIPTION

B031-141-000

Air Valve Assembly

B031-139-000

Sleeve and Spool Set

B095-094-551

Body, Air Valve

B132-029-552

Bumper

B165-115-552

Cap, End

B560-020-360

O-Ring

B675-044-115

Ring, Retaining

damage the spool during installa-

tion. Push the spool in until it

touches the bumper on the opposite

end.

Install the remaining bumper,

end cap with o-ring, and retaining

ring.

Fasten the air valve assembly

(item 1) and gasket (item 18) to the

pump.

Connect the compressed air line

to the pump. The pump is now ready

for operation.

QTY

IMPORTANT!

Read these instructions completely, before

installation and start-up. It is the

responsibility of the purchaser to retain

this manual for reference. Failure to

comply with the recommendations stated

in this manual will damage the pump,

and void factory warranty.

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