Operating & Service Manual 6 OPS-801 Rev.06
b)
Orient the bonnet to locate the injection fitting at 90º to the direction of flow for easy access during field
lubrication.
c)
Make up four nuts in alternate position around the bonnet and operate the valve close and open to verify
it is working smoothly. Make up the rest of the nuts and tighten in a crisscross manner to specified make
up torque.
(Reference API 6A Table D2 Recommended Bolting Torque).
Torque Bonnet Cap
Tight (200-300ft/lbs)
Install Socket Set Screw
Diagram IV c
3.5 Lubrication
Fill the valve cavity with lubricant through the injection fitting per Table 1. After removing the grease gun, use a
stinger to open the ball-check in the injection fitting to allow excessive grease to bleed off. Rotate the hand
wheel to help excessive grease bleed out. Lightly grease the bearing assembly through the grease zert on the
bearing cap. Finally snug tight the bonnet cap install the set screw to lock the bonnet cap down.
NOTE:
1)
Recommended procedure for disassembly basically follows the reverse steps as above.
2)
Recommended Grease: Moly-Lith No 2 or alternative for bearing, packing seal OD & all threads
(except NPT). Desco 111(HS) or alternative for sealing contact surface of gate, seat & stem.