Periodic Maintenance

OPERATION

For maximum performance and reliability of the tool, peri- odically check the following components.

THRUST COLLAR AND INSIDE/OUTSIDE COLLAR INSPECTION

Periodically inspect the thrust collar for damage when you remove the cut-off wheel (refer to Cutoff Wheel Replace- ment).

1.Remove the key and thrust collar from the motor shaft.

2.Check the thrust collar for burrs. Remove burrs as re- quired.

3.Check the threads on the clamping setscrew.

4.Inspect the collar bores and flanges.

5.Check for burrs. Remove burrs as required.

6.Check that the bearing surfaces are flat and run true when mounted on the motor shaft and thrust collar.

DRIVE-SHAFT SPEED CHECK

Check the speed of the motor output shaft at least every 100 hours of operation. The test should be performed only by a trained, experienced technician.

•Maintain a record of the speed checks.

•The maximum rated speed of the CO25 Hydraulic Cutoff Saw is 4500 rpm.

•The rated speed of the cutting wheel must be equal to, or greater than that of the tool to ensure the integrity of the wheel at maximum tool speed.

•Use the hydraulic power supply normally used with the cutoff saw when conducting this test.

•Excessive speed may be caused by excessive hydraulic fluid flow to the tool.

BEARING CHECK

Periodically inspect the bearings and associated parts for proper operation. A worn or damaged bearing can cause motor damage.

CARE AND STORAGE

Remove the cutoff wheel from the tool after use. Do not store or transport the saw with the wheel installed. Clean and inspect the wheel and tool before storing.

CUTOFF WHEELS

All abrasive cutoff wheels are breakable. Exercise care in handling and storage to prevent damage.

1.Clean used wheels to remove any dirt, debris, or grease. Dry thoroughly.

2.Inspect the wheel for chips, cracks, or other damage. For maximum tool performance, replace the wheel if it is worn or defective.

3.Store cutoff wheels on a flat surface of steel or similar rigid material.

4.If wheels are supplied with blotters attached, insert suit- able separators between each wheel and the supporting surface to preserve flatness.

5.Do not store wheels where they will be exposed to high humidity, water or other liquids, excessive heat, or freezing temperatures.

6.Avoid temperatures low enough to cause condensation on the wheels if they are moved from storage to an area of higher temperature.

7.Wheels carried on emergency vehicles should be re- moved after use, and discarded or stored carefully (steps 1 and 2).

TOOL

1.Clean the tool to remove any dirt, debris, or grease. Dry with compressed air or clean dry cloths.

2.Replace any damaged or missing safety labels and tags before storing the tool. Otherwise, the tool might be improp- erly used by someone who is not familiar with the safety requirements.

3.Store the tool in a clean, dry place.

CO25 User Manual ◄ 13