Graco A Series Important Safety Instructions Manual page 7

Reassembly
NOTE: Lubricate all o-rings when reassembling.
Plug Seals Repair Kit 420011 is available. Parts
included in the kit are marked with an asterisk, for
example (12*). Order the kit separately.
Lever Seals Repair Kit 420012 is available. Parts
included in the kit are marked with a symbol, for
example (2◆). Order the kit separately.
Outlet Seals Repair Kit 420013 is available. Parts
included in the kit are marked with a symbol, for
example (8†). Order the kit separately.
Ball Repair Kit 24T752 is available. Parts included in
the kit are marked with a symbol, for example (6‡).
Order the kit separately.
1. Install the backup washers (3◆) and o-ring (2◆)
on the valve stem (4). Insert the stem into the
body (1).
2. Screw the packing nut (5) into the body (1) so it
bottoms on the shoulder. Install the lever (16)
and nut (17) so the notch (N) in the lever faces
the B side, as shown.
Figure 5 Lever Orientation
3. Move the lever to the SPRAY position. Install the
stem ball (6) in the manifold body (1) so the small
hole on one side of the stem is facing the side
of the body marked SPRAY (A). The ball must
engage with the valve stem (4).
4. Install the bearing (8†) and o-ring (9†). Insert
the mix nozzle (10) into the stem ball (6) so it
3A2801A
bottoms on the shoulder. Loosely screw the
outlet fitting (11) into the body (1).
5. Apply thread adhesive to the check valves
(19, 20). Be sure to install the A and B check
valves (19) in the correct ports, as noted under
Disassembly.
6. Check that the lever (16) is in the SPRAY
position. This positions the ball stem (6) so the
smooth rounded surface is facing the solvent
port. Proper positioning is important to ensure
that the seal (22) conforms properly against the
ball.
7. Apply a small amount of fluid compatible grease
to the seat (12) and seal (22). Install them in the
solvent plug port, with the beveled side of the
seat (12) facing in, toward the ball (6).
8. Install the o-rings (13*, 14*) on the solvent plug
(15) and screw the plug into the solvent port
securely.
9. Move the lever (16) to the FLUSH position. This
positions the ball stem (6) so the smooth rounded
surface is facing the A and B ports. Repeat steps
7 and 8 for the A and B plugs.
Figure 6 Detail of Seal and Seat Assembly
10. When all three plugs (15) are installed, tighten
the outlet fitting (11).
11. Reconnect the hoses, A to A and B to B.
Reconnect the solvent hose.
12. Return the mix manifold to service.
Repair
7