Installation Guide: NexBot Robotics 712-005 Shaft Seal
SKU: NXB-GEN-712-005 | Revision: 1.0 | Category: Wear Parts & Consumables > Bearings & Seals > Shaft Seals
DANGER: Disconnect all power sources before beginning installation.
Follow lockout/tagout (LOTO) procedures per OSHA 1910.147.
1. Required Tools & Materials
2. Pre-Installation Checks
- Verify the part is a genuine NexBot Robotics 712-005 Shaft Seal by checking the SKU NXB-GEN-712-005 on the packaging.
- Inspect the new seal for any signs of damage incurred during shipping, paying close attention to the sealing lip and electrical connector.
- Ensure the robotic arm or machine is powered down and follows Lockout/Tagout (LOTO) procedures.
- Confirm the machine's power supply can provide a stable 48VDC source for the seal's integrated sensor.
- Inspect the shaft and housing bore for any burrs, scratches, or contamination. Clean and polish surfaces as required.
- Measure shaft runout to ensure it is within the tolerance specified in the master robot service manual.
3. Installation Procedure
Step 1: Step 1: Perform Lockout/Tagout (LOTO)
De-energize all power sources to the robotic equipment, including electrical, pneumatic, and hydraulic systems. Apply appropriate locks and tags to prevent accidental startup.
Warning: Failure to de-energize and lock out the machine can result in severe injury or death from unexpected movement or electrical shock.
Step 2: Step 2: Remove Worn or Failed Seal
Carefully remove any machine guards or components obstructing access to the seal. Use a seal puller to extract the old seal, taking care not to damage the shaft or housing surfaces.
Step 3: Step 3: Prepare Mounting Surfaces
Thoroughly clean the shaft and the housing bore with lint-free wipes and a non-residue solvent. Ensure both surfaces are completely dry, smooth, and free of any foreign material.
Warning: Residual debris or surface imperfections can cause premature failure of the new seal.
Step 4: Step 4: Lubricate the New Seal
Apply a thin, even film of NexBot-approved lubricant (NXB-LUBE-04B) to the outer diameter of the seal housing and the inner sealing lip. Do not use excessive lubricant.
Step 5: Step 5: Position the 712-005 Seal
Carefully align the NexBot Robotics 712-005 Shaft Seal with the housing bore. Gently press it into place by hand, ensuring it is square to the shaft and not tilted.
Warning: Do not use a hammer or excessive force, as this can damage the anodized aluminum housing and internal components.
Step 6: Step 6: Install and Torque Mounting Bolts
Insert the mounting bolts and hand-tighten them in a star pattern. Use a calibrated torque wrench to tighten the bolts to the specified torque of 8 Nm, following the same star pattern to ensure even pressure.
Warning: Over-tightening or under-tightening the bolts can lead to leaks or housing damage.
Step 7: Step 7: Connect Electrical Interface
Securely connect the 48VDC power cable to the seal's integrated connector. Ensure the locking mechanism engages fully to maintain the IP54 rating.
Step 8: Step 8: Reinstall Components and Remove LOTO
Reinstall any machine guards or other components that were removed. Once the work area is clear, authorized personnel may remove the LOTO devices and re-energize the equipment.
4. Post-Installation Verification
- After re-energizing, check the robot controller for any new fault codes related to the seal sensor.
- Run the associated axis at a low speed for several minutes and perform a visual inspection for any signs of lubricant leakage.
- Listen for any abnormal noises such as grinding or squealing, which could indicate improper installation.
- Verify that the 48VDC supply to the seal is stable and within specification using the machine's diagnostic interface.
- After a brief operational period, check the temperature of the seal housing to ensure it is not overheating.
- Confirm smooth and unrestricted rotation of the shaft through its full range of motion.
Note: For technical support, contact your authorized service provider
or visit https://robotics.barca.group/support.