SANDPIPER M15 Non-Metallic - Manual (Page 19)

m15nmdl3sm-rev0713 Model M15 Non-Metallic Page 17
AIR DISTRIBUTION VALVE
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 11)
and four flat washers (item 38). Remove
the air valve assembly from the pump.
Remove and inspect gasket (item
19) 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 bumpers for cuts, wear
or abrasion. 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 end cap (item 1-E) with
an o-ring (item 1-G) and one bumper
(item 1-C) 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 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 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 19) to the
pump.
Connect the compressed air line to
the pump. The pump is now ready for
operation.
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.
IMPORTANT