JETStream 3000 series, Operation Manual, Page: 41 / 84

Bareshaft Pump
33
SERVICE
Fluid End
Checking Manifold Bolt Torque
Verify the head bolts are properly tightened. Check
the bolt torque in a crisscross sequence starting with
the center bolts (Figure 44). Proper torque is 350
ft.-lb. (470 N·m) which can be achieved with a few
hammer strikes on the pump wrench.
Checking Gland Nut Torque
1. Open the rod box cover.
2. Place the long end of the pump wrench in one
of the gland nut holes.
3. Use a 5 lb. (2 kg) hammer to hit the wrench in
the direction to tighten the gland nuts. Hit the
wrench about three times using moderate force.
This will supply sufficient torque on the nut.
4. Repeat for the remaining nuts.
5. Close the rod box cover.
ATTENTION
It is helpful to mark gland nuts once they are
confirmed to be operating correctly. A perma -
nent marker can be used to mark a line across
the top of the gland nut and stuffing box. This
will allow easy visual confirmation that the
gland nuts are properly torqued.
Figure 44: Tightening Sequence.
Figure 45: Tightening the Gland Nut.