Tire Removal Process
Step 1
Detach the cage arms, remove the quick release pins, and lower the cage arms.
Step 2
To measure the wheel diameter accurately, position the lower blocks into place by adding 1" to the previous wheel measurement. This adjustment ensures that the outer wheel diameter does not come into contact with the block's upper step.
Step 3
Position the wheel and tire according to the lower blocks. To ensure proper alignment, verify that the lower crossbar section is centered when viewed through the bearing hole.
Step 4
Position the upper cross section on top of the wheel and tire. Then, rotate the cage arms upward, allowing the quick release pin to secure everything in place. Depending on your tire diameter, make sure to adjust the four upper crossbar blocks to align with the center of the tire's sidewall.
Step 5
Position the Hydraulic assist on top of the Upper cross section and connect the air hose.
NOTE: It is essential to double check the Cage Arm fasteners on both the Lower and Upper sections to ensure correct positioning before activating the Hydraulic assist.
Step 6
Carefully apply pressure until the tire separates from both the lower and upper halves of the wheel.
NOTE: Typically, the lower bead will break first, followed by the upper bead.
Step 7
Release the hydraulic pressure and detach the hydraulic assist from the upper crossbar.
Step 8
To begin, remove the quick release pins from the cage arms and lower the cage arms. Next, take out the upper cross section before removing the tire from the wheel.
Tire Installation Process
Step 1
Position the wheel on the lower crossbar blocks, ensuring that it aligns with the 'bottom step' and maintains even spacing from the wheel to the four blocks.
NOTE: Once you achieve the proper spacing, it is advisable to place a 'mark' or 'line' on the lower crossbar for this specific wheel assembly. Adjustments can be made for various sizes of aircraft wheels. If this is the sole wheel assembly in your fleet, you won’t need to readjust the lower blocks again.
Step 2
Carefully install the tire onto the wheel assembly, ensuring to reference the AMM/CMM for the correct placement of the tire on the wheel.
Step 3
Place the split rim, which is the split portion of the wheel, or the bolted wheel's upper portion onto the tire.
Step 4
Position the upper cross section on top of the wheel and tire, then rotate the cage arms upward to allow the quick release pin to lock securely into place. Depending on your wheel diameter, adjust the four upper crossbar blocks to align with the outer edge of the wheel, ensuring a proper fit on the wheel and sufficient spacing to install the wheel retaining ring if you are using a split ring type. For wheels that are bolted together in halves, ensure that you adjust the four upper crossbar blocks to achieve a secure fit on the wheel, allowing for the compression of the wheel halves as you begin to tighten the bolts.
Step 5
Position the Hydraulic assist on top of the Upper cross section and connect the air hose.
NOTE: It is essential to double check the Cage Arm fasteners on both the Lower and Upper sections to ensure correct positioning before activating the Hydraulic assist.
Step 6
Carefully apply pressure until the tire is sufficiently compressed to allow for the installation of the retaining ring on the wheel for split wheels, or to secure the bolts with nuts for bolted wheel halves.
Step 7
Release the hydraulic pressure and detach the hydraulic assist from the upper crossbar.
Step 8
To begin, remove the cage arms by taking out the quick release pins and then lower the cage arms. Next, detach the upper cross section. Finally, take the assembled wheel and tire off the bead breaker.