How Do You Inspect the Air Motor of a Pneumatic Rock Shovel Loader?

A pneumatic rock shovel loader needs proper air motor maintenance to keep working safely and efficiently. The air motor is the core of the machine, and any failure can stop the entire loading process. Regular inspections help prevent downtime and ensure stable performance in underground operations.

First, check the axial wear of the end cover. The wear should not exceed 0.5 mm. Excessive wear can affect alignment and reduce motor efficiency. Next, inspect the rotor. Its axial wear must stay within 1 mm. If the wear is too large, the rotor may lose balance and cause friction during operation.

After assembly, the rotor must rotate smoothly. It should spin freely without any signs of jamming. Smooth rotation is essential for steady air motor performance.

Then, measure the axial clearance between the rotor and the end cover. This gap should not exceed 0.4 mm. Too much clearance reduces the motor’s sealing performance and lowers its power output.

Finally, check the radial clearance between the rotor and the stator. The maximum normal value is 0.2 mm, and the wear limit is 0.4 mm. Staying within this range helps maintain good airflow and prevents internal collisions.

By following these simple inspection steps, you can keep the pneumatic rock shovel loader in reliable working condition and reduce unexpected failures.

 

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