Graco GM 5000 Instructions And Parts List page 27

Displacement
WARNING
To reduce the risk of seri-
ous bodily injury from
tool 224-788 to remove
pump rupture, use only
the sleeve. If the sleeve is
stuck, send the cylinder to
removal.
6. Remove the sleeve when servicing the pump. Use
special tool, Part No. 224-788 only. Screw the nut
to push the sleeve out. See Fig.
24.
(B) into the cylinder (219). Screw down the rod (A)
Assembling the Pump
for the best results. The kit includes parts marked with
NOTE: Use repair kit 220-877, and using all its parts,
an asterisk, (201*).
NOTE: Soak the packings in oil, and coat the rod and
inside of the cylinder with oil.
NOTE Alternate leather and plastic packings Be sure
the lips of the v-packings face the direction shown. In-
correct installation damages the packings and results in
pump leakage.
1.
Check the piston rod (224) and the inside of the
are damaged, new packings will not seal properly.
sleeve (218) for scoring or scratches. If these parts
2. Stack the piston packings onto the piston (222) as
shown in Fig. 23.
3. lighten the piston nut (211) onto the piston to
10.5 in-lb (1.2 N.m.) to seat the packings, and then
back off and finger tighten.
. .
A?
o sealant to
ply one drop
these threads
NOTE; Note and maintain
the
alignment of the piston
(222) to the nut ( 2 1
1) through Steps
4,5 and 6.
4.
Apply ONE drop of adhesive, supplied with the re-
on the piston. Hand tighten the piston into the rod
pair kit, to the piston threads. Place the ball (225*)
(224)
just until the nut
( 2 1
1) contacts the rod. Place
the flats of the rod in a vise.
5. Tighten the nut
(21 1) onto the rod
(224) to 19 ft-lb
(25 Nm). Use
two wrenches to maintain the align-
ment as mentioned in Step 3.
6. Stack the throat packings into the top of the cylinder
(219). Install the packing nut (216) loosely.
Fig.
.26
7.
Insert the piston rod assembly
(C)
into the
top
of
the
sleeve (218). Install the gasket ( 2 0 2 ' )
on the
sleeve. Slide the sleeve assembly into the bottom
of
the
cylinder
(219).
Note that the tapered end (D)
of the sleeve is at the bottom. See Fig. 26.
8.
Assemble and install the intake valve. Use a m
gasket (202*). Tighten the. valve to 67 ft-lb
(90 Nm). See Fig. 21.
lnshlling the Pump
See Fig. 21 and 27.
1.
Screw the pump 3/4 of the way into the bearing
the connecting rod (79) and continue screwing in
housing (76). Hold the pin (71) up to the pin hole in
the pump until the pin slides easily into the hole.
2. Align the top threads of the pump cylinder flush
with
the face
(E)
of the bearing housing and so the outlet
nipple (15) faces the rear of the unit.
3. Push the retaining spring (75) completely into the
very tight
-
70 fI-lb (95 Nm), to prevent it loosening
connecting rod groove. Tighten the locknut
(137)
and damaging the threads
of
the bearing housing.
WARNING
Be sure the retaining spring (75) is firmly in the
groove, all the way around, to prevent the pin
(71)
from working loose due to vibration.
off due to the force of the pump action. These parts
If the pin works loose, it or other parts could break
ous bodily injury or property damage, including
could be projected through the air and result in seri-
damage to the pump connecting rod and bearing
housina.
4. Tighten the packing nut (216) just enough to stop
leakage. Fill the nut 1/3 full with Graco TSL.
5. Assemble the remaining parts.
308-105
27