Installation Guide: NexBot Robotics 712-004 Shaft Seal 60x80x8 mm

1. Verify the new part is SKU NXB-GEN-712-004. Measure to confirm 60x80x8 mm dimensions.
2. Inspect the new seal for any manufacturing defects, cuts, or deformities in the NBR material or spring.
3. Ensure the robotic system is de-energized and placed in a zero-mechanical-state using approved Lockout/Tagout (LOTO) procedures.
4. Inspect the shaft surface and housing bore for pre-existing damage, scoring, or burrs that could damage the new seal.
5. Confirm the lubricant to be used is compatible with Nitrile Butadiene Rubber (NBR).
6. Clean the work area of any dirt, metal shavings, or other contaminants.

Step 1: Perform Lockout/Tagout (LOTO)

Before beginning any work, completely de-energize the robotic system. Follow all site-specific LOTO procedures to prevent accidental machine startup.

Step 2: Access the Seal Housing

Remove any protective covers, casings, or mechanical components that obstruct access to the existing shaft seal. Keep all hardware organized for reassembly.

Step 3: Remove the Old Seal

Carefully use a seal puller to extract the worn seal from the housing bore. Apply leverage evenly and take care not to scratch or gouge the shaft surface or the inner wall of the bore.

Step 4: Clean and Inspect Sealing Surfaces

Thoroughly clean the housing bore and the shaft with a suitable solvent and lint-free wipes. Perform a detailed visual and tactile inspection for any burrs, nicks, or grooves that could compromise the seal.

Step 5: Prepare the New Seal

Apply a thin, clean film of the specified system lubricant to the outer diameter of the NexBot Robotics 712-004 seal. Also, apply a light coating of lubricant to the inner sealing lip to ensure smooth initial shaft rotation.

Step 6: Position the Seal

Carefully align the new seal with the housing bore, ensuring it is square to the shaft. The garter spring on the seal lip must face inward, towards the lubricant it is designed to retain.

Step 7: Press the Seal into Place

Select a seal driver or press sleeve that matches the 80 mm outer diameter of the seal. Use the driver to apply even pressure only to the rigid outer edge of the seal, pressing it smoothly into the bore until it is flush with the housing face or bottoms out on its mechanical stop.

Step 8: Verify Final Seating

Visually inspect the installed seal to ensure it is seated squarely and uniformly within the bore. Check that it is recessed to the correct depth as specified by the equipment manual.

Step 9: Reassemble Components

Reinstall all components that were removed to gain access to the seal. Ensure all fasteners are torqued to the manufacturer's specifications.