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FIGURE 5
Packing Replacement Procedures
FIGURE 6
20
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 uid pump body.
5. Start the machine & operate slowly to check the piston
rod for binding. Adjust the bolts, holding the uid
pump body to the cover assembly, if necessary. This
will eliminate any binding.
76 Tighten packing nut clockwise until resistance is felt
against the Belleville Springs, then go 3/4 of a turn
more. Put ve drops of Airlessco Throat Seal Oil
into the packing nut.
7. Run the machine at full pressure for several minutes.
Release the pressure by following the Pressure Relief
Procedure & readjust the packing nut per step 6 above.
8. Install the connecting rod safety shield
(Fig. 1 Part # 331-111) so that the small hole is in the
upper right hand corner.