AIRLESSCO LP460 Service & Operation Manual page 22

Packing Replacement Procedures (
3. Push the two bolts (100-318) through the tube spacers
(331-074) & screw into the cover assembly (331-234).
Using a 1/2" wrench, tighten the two bolts evenly
(alternating between them) until you reach 20 ft-lbs.
4. Reassemble lower suction valve assembly by placing
the suction seat (331-409) O-ring (106-011), suction
ball (331-030) and suction ball guide (331-029) in the
suction nut (331-034) & screw onto the fl uid pump body. suction nut (331-034) & screw onto the fl uid pump body.
5. Reconnect the sensor (331-294-99) to the fl uid pump
body. Hold sensor with a 7/8" wrench while tightening
the swivel connector (100-003) with an 11/16" wrench.
DO NOT TURN THE SENSOR.
6. Start the machine & operate slowly to check the piston
rod for binding. Adjust the bolts, holding the fl uid
pump body to the cover assembly, if necessary. This
will eliminate any binding.
7. Tighten packing nut counter clockwise until resistance
is felt against the Belleville Springs, then go 3/4 of a
turn more. Put fi ve drops of Airlessco Throat Seal Oil
into the packing nut.
8. Run the machine at full pressure for several minutes.
Release the pressure by following the Pressure Relief
Procedure & readjust the packing nut per step 7 above.
9. Install the connecting rod shield (331-111) so that the
small hole is in the upper right hand corner.
20
FIGURE 16
Continued)
FIGURE 15