SANDPIPER M15 Metallic - Manual (Page 26)

m15mdl1sm-rev0713 Model M15 Metallic Page 24
ACTUATOR PLUNGER SERVICING
To service the actuator plunger first
shut off the compressed air supply,
bleed the pressure from the pump, and
disconnect the air supply line from
the pump.
Step #1: See PUMP ASSEMBLY
DRAWING.
Using a 1/2" wrench or socket,
remove the four capscrews (items
11). Remove the air inlet cap (item
8) and air inlet gasket (item 18). The
pilot valve assembly (item 4) can now
be removed.
Step #2: Inspect the actuator
plungers.
See ILLUSTRATION AT RIGHT.
The actuator plungers (items 30)
can be reached through the pilot valve
cavity in the intermediate assembly
(item 5).
Remove the plungers (item 30) from
the bushings (item 7) in each end of the
cavity. Inspect the installed o-ring (items
26) for cuts and/or wear. Replace the
o-rings if necessary. Apply a light
coating of grease to each o-ring and
re-install the plungers in to the
bushings. Push the plungers in as far as
they will go.
To remove the bushings (item 7),
first remove the retaining rings (item 31)
by using a flat screwdriver. NOTE: It is
recommended that new retaining rings
be installed.
Step #3: Re-install the pilot valve
assembly into the intermediate assembly.
Be careful to align the ends of
the stem between the plungers when
inserting the stem of the pilot valve into
the cavity of the intermediate.
Re-install the gasket (item 18),
air inlet cap (item 8) and capscrews
(item 11).
Connect the air supply to the pump.
The pump is now ready for operation.
ACTUATOR PLUNGER DRAWING
33
30
5
31
7
26
Read these instructions
completely, before
i n s t a l l a t i o n a n d
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