Displacement Pump Reassembly - Graco A Series Instructions-Parts List Manual

Displacement Pump
Reassembly
1. Clean and inspect the parts and replace any that
are worn or damaged. Be sure to check the copper
gasket (46) in the motor base (55). Lubricate the
parts with a light, waterproof grease.
2. Install the seal (16), packing (17), bearing (18), gas-
ket (6), seat (19), and ball (2) on the piston body
(13). The check ball seat (19) may be reversed, if
needed, to provide a new seat. Screw the piston
body (13) into the piston coupling (14).
3. Screw the riser tube (12) into the air motor base
(55).
4. Reinstall the ball (3), gasket (7), ball stop (21) and
other gasket (7) in the intake valve housing (22).
Screw the housing onto the riser tube (12).
5. Be sure the ground wire is connected before regular
operation of the pump.
308069P
55
4
4
19
17
16
13
12
7
7
F . 18
IG
Service
46
4
10
2
6
14
18
15
22
21
3
19