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THIS
MANUAL
IS
FOR
USE
ONLY
AS
A
SUPPLEMENT
TO
MANUALS
307-013
AND
307-728.
Read And Understand
All
Instruction Manuals Before Operating Equipment.
OBSERVE ALL WARNINGS GIVEN IN THOSE INSTRUCTION MANUALS.
WARNING
Pressure Relief Procedure
To reduce the
risk
of serious bodily injury, including
5.
Hold
a metal part of the gunhalve firmly to the side
fluid injection, splashing in the eyes or on the skin, or of a grounded metal pail, and trigger the gunlvalve
injury from moving parts, always follow this procedure
whenever
YOU
shut
Off
the Pump, when checking
01
6.
Engage the gunlvalve safety latch.
to relieve pressure.
when installing, cleaning or changing spray tips/
nozzles, and whenever You stop spraying/disPensing.
Leave
the
drain
valve
Open
until
you
are
ready
to
ing a container ready to catch the drainage.
any
part
Of
the
spray/dispensing system,
7.
Open the drain valve (required
in
your system), hav-
1.
Engage the spray gun/dispensing valve safety sprayldispense again.
latch. If you suspect that the spray tiplnonle
or
hose
is
com-
2.
Shut off the air
to
the pump.
pletely clogged,
or
that
pressure has not been fully
re-
lieved after following
the
steps above,
VERY
SLOWLY
3.
Close the bleed-tYPe master air valve (required in
loosen
the
tin
auard retainina nut or hose end couDlina
I
your system).
4.
Disengage the gun/valve safety latch.
and relieve pressure gradjally, ihen
loosen
Lo6
pletely. Now clear the tiplnouie or
hose.
,
-
~~
DISCONNECTING THE DISPLACEMENT PUMP
1.
Flush the pump if possible. Stop the pump at the bot-
tom
of
its
stroke. Follow tne
Pressure Relief Proce-
dure
Warnlng
above.
2.
Disconnecttheairandfluidhoses.Removethepump
from its mounting.
3.
See
Fig
1.
Screw the coupling nul
(41)
off
of the air
motor piston rod.
Be
careful not to
lose
the
two
cou-
plers
(40)
as
you lower the
nut.
Unscrew the tie rod
locknuts (26) from the tie rods
(31).
Carefully pull the
displacement pump
(2)
away from the air motor
(1).
NOTE:
Do
not remove the connecting rod
(42)
from
the
displacement rod (C) unless the displacement
rod
is
being replaced. If that is necessary, save
the connecting rod for usewitn the new displace-
ment rod.
4.
To service
the
displacement pump, refer to
Displace-
the air motor, refer to instruction manual
306-968
ment Pump Model SP 217-527
at right. To sewice
(supplied).
RECONNECTING THE DISPLACEMENT PUMP
1.
See Fig
1.
if
it was necessary to remove the connect-
ing rod
(42),
apply a removable grade
of
Loctitee to
its threads before assembling it
to
the displacement
rod
(C),
and torque
to
100-110ft-lb (135-150
Nm).
2.
Align the pump’s fluid outlet
(A)
to the optional fluid
OUtlet
(B)
of
the air motor. Position the displacement
pump
(2)
on
the tie rods
(31).
3.
Place the coupling nut
(41)
onto the connecting rod
(42).
Inse!ithecouplers
(40)
into the coupling nut
(41)
2 308-104
from the top. Screw the coupling
nut
up onto the air
motor shaft snugly. Screw the locknuts
(26)
onto the
tie rods
(31)
loosely.
3.
Mount the pump
and
reconnect
all
hoses. Reconnect
the ground wire if it was disconnected during repair.
4.
TiOhten the tie rod locknuts
(31)
evenlv. and toroue to
46-50R-lb
(54-68
N.m). Toiqie the ciiupling nit
(41)
to
145-155fl-lb (195-210
Nm).
5.
Start the
pump
and run
it
slowly, at about
40
psi
(2.8
bar) air pressure, to check the tie rods for signs of
binding. Adjustthe tie rods as necessary to eliminate
binding. Tighten the packing nut/wet-cup
(0)
withthe
wrench
(28)
supplied,
so
it
is just snug -no tighter. Fill
the wet-cup half full with Graco Throat Seal Liquid or
compatible solvent.
DISPLACEMENT PUMP MODEL SP 217-527
Refer to the Parts Drawing and List
on
page
5.
The
Ref.
NOS.
in
the parts list correspond with those
in
Manual
To repair Displacement Pump SP
217-527,
refer to In-
there, with the following exceptions:
struction Manual
307-728
and follow all instructionsgiven
1.
Packing Repair Kits
220-395
and
223-643
refer-
enced in
307-728
do
not
include gland/packing
The
v-packings
in
this stack are one and four
stack
223-480,
which
is
used
in
Mod
217-527.
leather, as shown
on
page
5.
2.
The method
of
connecting Displacement Pump SP
217-527
to
the air motor is different from that de-
scribed
in
307-728.
Refer to the preceding para-
graphs in this Supplement for instructions.
307-728.
PTFE