Conmet PreSet Installation Instructions Manual Download Page 1

PreSet

®

 Spindle Nut  

Installation Instructions

 

Hazard Alert Messages 

A Danger alert indicates a hazardous situation which 
if not avoided, will result in death or serious injury.

 

A Warning alert indicates a hazardous situation which 
if not avoided, could result in death or serious injury.

 

A Caution alert indicates a hazardous situation which if 
not avoided, could result in minor or moderate injury.

 

A note includes additional information that may assist 
the technician in service procedures.

 

This spindle nut is intended for use with a traditional 
PreSet hub. If you have a PreSet Plus

®

 hub with 

integrated spindle nut (see figure 1), you should be able 
to reuse the spindle nut. See the back of these 
instructions for listing of PreSet Plus spindle nut part 
numbers. 

Figure 1

PreSet Plus

PreSet Plus 
hubs feature 
an integrated 
spindle nut
held in place 
with a retaining 
ring.

This kit includes a Spindle Nut engineered specifically 
for use with PreSet wheel hubs.   PreSet spindle nuts 
offer the best solution for optimized service life of your 
PreSet hub. 

Use this kit only with ConMet PreSet hubs. Only Pre-
Set hubs are designed to utilize these components 
and function properly. Use of the kit components 
in hubs other than ConMet PreSet could result in 
catastrophic wheel end failure.

 

The PreSet spindle nut is not intended for use when 
manually adjusting wheel bearings. Using this 
spindle nut on hubs with manually adjusted bearings 
could result in catastrophic wheel end failure.

Installation 

1. Seat the flat inner washer into the back of the 
spindle nut (see Figure 2). 

Figure 2

  

2. Align the key or flat on the washer with the keyway or 
flat on the spindle, and position the spindle nut and 
washer against the outer bearing (see Figure 3). 

Figure 3

3. Install the spindle nut by rotating the nut in a 
clockwise direction to fully engage the threads. Torque 
the spindle nut to 300 ft. lbs. while rotating the hub. 
DO NOT BACK OFF THE SPINDLE NUT. 

4. Visually examine the three holes in the face of the 
spindle nut. One of the holes will line up with the holes 
in the inner washer. Install the tab of the red locking 
snap ring through the hole in the nut and washer 
that are aligned. Spread the locking ring, push it over 
the spindle nut and into the machined grooves in the 
spindle nut. Use caution not to bend the locking ring 
permanently. 

5. Rotate the hub assembly checking for smooth and 
free rotation.  

Verify the hub will rotate by hand before placing it in 
service. Some drag is normal for a new seal, but exces-
sive drag or roughness may indicate excessive bearing 
preload which could result in premature seal failure. An 
incorrect combination of parts or the use of one or more 
non-PreSet parts may cause this condition.

 

 

Failure to fill the hub with the correct amount of 
lubricant can cause premature failure of the  
PreSet hub assembly, which could result in a 
wheel loss and possible death or serious injury.

For proper lubrication requirements refer to ConMet 
service manuals which can be found online at  
www.conmet.com.

Consolidated Metco, Inc. 

5701 SE Columbia Way, Vancouver, WA 98661 (800) 547-9473 

 

www.conmet.com

Part No. 10081722 1-2016 rev. A
©2016 Consolidated Metco Inc.

Notes

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