Removal Procedure

Equipment Required

• 6-point socket, sized according to the markings stamped on the face of the Axilok. Refer to Figure 1 and Table 1.
• Torque wrench
• Dial Indicator

1. Install correct size 6-point socket completely over the hex of the Axilok. Be sure that both the locking clips are completely disengaged from the retainer cage, permitting free rotation. Refer to Figure 2.

2. Turn counterclockwise to remove Axilok. If Axilok does not move freely, stop removal. Check that the socket is completely and fully engaged on the Axilok and that the locking clips are fully retracted from the retainer cage slots. If Axilok still will not turn freely, rotate slightly clockwise, to tighten, and then loosen again. The nut should rotate counterclockwise freely.

3. Continue counterclockwise rotation until Axilok threads disengage from the spindle threads.

Pre-Installation Procedure

Before installing Axilok, check the following:

• Each locking clip should be securely fastened to the nut body and have a rivet that passes through the top of the locking clip body.
• Each locking clip should have a locking clip tab protruding completely through the retainer cage adjustment slot (when properly aligned and not compressed by a socket). Refer to Figures 2, 4 and 5.
• Locking clips should not be bent, cracked or broken.

2. Inspect Axilok retainer cage condition.

• There should be no cracks or other damage to the retainer cage.
• Retainer cage should be secured to the nut body and not fall off when the locking clips are compressed by the socket.
• The retainer cage tab or "D" flat should be free of damage, such as cracks, scarring, gouges, or distortion. Refer to Figure 7.

3. Inspect Axilok threads.

• The threads should show no signs of wear
  or damage.
• Wipe the threads to remove excess oil
  or debris.

4. If Axilok fails any of the checks above, the Axilok is unfit for use. DO NOT USE. Replace the unfit Axilok with a new Axilok, and repeat all checks.

5. Free Rotation Inspection. This test will check for nut and socket compatibility.

• With correct size 6-point socket turned upside down, insert Axilok completely into the socket, compressing locking clips.
• Retainer cage should spin freely with no interference between locking clip tabs and retainer cage.
• If locking clip tabs interfere with rotation of the retainer cage, the socket is not fully compressing the locking clips. This indicates that the socket is the incorrect size, worn, or out of specifications and must be replaced. Refer to Figure 2.

1. Before installation, perform pre-installation checks:

• Be sure the spindle slot is clean and free of burrs and foreign material before installing Axilok.
• Be sure the thread size is the same on both components.
• Put a few drops of oil through one of the retainer cage holes. This will ensure friction-free movement.

2. Put Axilok in the correct size 6-point socket (refer to Table 1) and verify that the locking clips are compressed. Refer to Figure 2. Retainer cage should spin freely.

3. Align Axilok retainer cage tab or "D" flat with spindle slot or "D" flat. Be sure to start and run down the Axilok by hand. Do not use power tools. Rotate the socket clockwise until contacting bearing.

• Do not overtorque. Refer to Table 1 for specific torque values.
• Rotate the socket clockwise until contacting bearing.

4. Using a properly calibrated torque wrench, torque Axilok to the initial torque of 200 ft. lbs. while rotating hub.

• Back off 1/2 turn.
• Tighten to final torque while rotating hub. Refer to Table 1.
• Back off 1/8 turn. This will provide end play. Refer to Figure 6.

5. Remove socket and verify locking clip tabs have engaged the adjustment slots in the retainer cage. Refer to Figures, 2, 4 and 5.

6. Measure end play using a dial indicator. If correct end play is not achieved, adjust according to Adjustment Increments shown in Table 1.

• Rotate Axilok clockwise to reduce end play. (Example: from .004" to .002" end play.)
• Rotate Axilok counterclockwise to increase end play. (Example: from .001" to .003" end play.)
• This same procedure can be used to achieve a controlled pre-load condition. (Example: from .001" end play to .001" pre-load.)