Servicing The Piston Rod; Servicing The Suction Assembly - AIRLESSCO Spray & Stripe 3500 Service And Operation Manual

Servicing the Piston Rod - Outlet Valve
DISASSEMBLY OF THE OUTLET VALVE
REFER TO FIGURE 3
1. Disconnect the Fluid Pump following instructions on page 17 .
2. Place piston holder (331-195) in a vise. Slide piston into
the holder & lock in place with a 3/8" dowel (331-196).
3. Use a 1/4" allen wrench to unscrew the outlet seat retainer
(331-026) from the piston.
4. Remove the outlet seat (331-026), O-ring (331-100) and
outlet ball (331-027).
5. Inspect outlet ball & seat for wear. Replace as necessary.
6. While piston is still locked in the holder, install parts
back into the piston in the following order:
Before reinstalling the outlet seat support, apply two drops of
Loctite No. 242 (blue) on the threads & torque to 20 ft-lbs.
NOTE: Airlessco LP pump tool kit 188-197 is suggested for this task.
Kit includes: Packing Tightening Bar (189-211), Packing Removal Tool (331-153),
Piston Holder (331-195), 3/8" dowel (331-196).

Servicing the Suction Assembly

REFER TO FIGURE 4
1. Un-thread and remove suction nut from the fluid pump body.
2. Remove suction seat (331-409), O-ring (106-011), suction ball
(331-030) and suction retainer (331-029).
3. Clean all parts and inspect them for wear or damage, replacing
parts as needed.
4. Clean inside of the fluid pump body.
5. Reassemble lower suction valve assembly by placing the
suction seat (331-409), O-ring (106-011), suction ball (331-030)
& suction ball guide (331-029) in the suction nut (331-034) &
18
ball, outlet seat and O-ring
FIGURE 3
Piston
331-195
331-196
FIGURE 4