Companion Flange

Companion Flange Lock Nut* 490 Nm (362 ft. lbs.) Or Less

* To properly torque the companion flange nut the following procedure must be followed:
1. Using Special Service Tool (SST) 09229-55010, 09330-0021 or equivalent tighten the nut.
2. Using SST and a torque wrench, measure the preload.
Preload at starting:
New Bearing: 1.5-1.8 Nm (13.0-15.6 inch lbs.)
Reused Bearing: 0.5-0.8 Nm (4.3-6.9 inch lbs.)
3. If the preload is greater than the specification, replace the bearing spacer.
4. If the preload is less than the specification, retighten the nut with of a force of 13 Nm (9 ft. lbs.) at a time until the specified preload is reached.
Torque: 490 Nm (362 ft. lbs.) Or Less.
If the maximum torque is exceeded while retightening the nut, replace the bearing spacer and repeat the preload procedure. DO NOT back off the nut to reduce the preload.