JETStream 3000 series, Operation Manual, Page: 47 / 84

Bareshaft Pump
39
Figure 59: Gland Installation.
Plunger Coupling
Plunger
Figure 60: Plunger Coupling Installation.
Figure 61: Tightening the Gland.
5. Pull the plunger (Figure 59) back to meet the
crosshead pony rod. If the packing is too tight
to move the plunger by hand, the pump can be
rotated by hand (via the belts) to move the pony
rod to meet the plunger.
6. Place the plunger coupling into position and
install the coupling bolts (Figure 60). Tighten
the bolts to 20 ft.-lb.(27 N·m).
7. Use the pump wrench and a 5 lb. (2 kg) ham-
mer to tighten the gland nuts to approximately
250 ft.-lb.(338 N·m). Hit the wrench about
three times using moderate force (Figure 61).
This will supply sufficient torque on the nut.
8. Repeat the previous steps for the remaining
stuffing boxes.
9. Connect the water lubrication lines and close
the rod box cover.
10. It is necessary to break-in new packing proper-
ly to ensure optimal performance and a proper
seal. Refer to “Breaking in New Packing” on
page 16 for the proper break-in procedure.