Sandpiper S15 Non-Metallic User Manual download pdf (Page 23)

520-193-000 9/02 Model S15 Non-Metallic Design Level 2 Page 21

Read these instructions

completely, before in-

stallation 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.

IMPORTANT

AIR DISTRIBUTION VALVE WITH

STROKE INDICATOR OPTION

SERVICING

To service the air valve first shut off

the compressed air, bleed the pressure

from the pump, and disconnect the air

supply line from the pump.

STEP #1: See Composite Repair and

Parts Drawing.

Using a

5

/16" Allen wrench, remove

the four hex socket capscrews (item 13)

and four flat washers (item 39). Remove

the air valve assembly from the pump.

Remove and inspect gasket (item 23)

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 (item 1-C).

Inspect the bumper for cuts, wear or

abrasions. Replace if necessary.

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 contaminates.

Remove the sleeve if needed and replace

both the sleeve and spool with a new

sleeve and spool set (item 1-A).

STEP #3: Reassembly of the air valve.

Install one bumper (item 1-C) and

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. Insert the safety clip (item 1-K)

through the small unthreaded hole in the

end cap.

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

installing the sleeve into the valve body

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

with the slots in the valve body. Insert

the spool into the sleeve. Be careful not

to scratch or damage the spool during

installation. Push the spool in until the

pin touches the safety clip 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 23) to the pump.

Connect the compressed air line to

the pump. The pump is now ready for

operation.

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