Alamo A72B, A60B, 00759354C manual Blade Servicing, Blade Sharpening, Maintenance

MAINTENANCE

When attaching PTO yoke to tractor PTO shaft, it is important that spring-activated locking collar slides freely and locking balls are seated in groove on PTO shaft. A loose shaft could slip off and result in personal injury or damage to cutter.

BLADE SERVICING

Inspect blades before each use to determine that they are properly installed and in good condition. Replace any blade that is bent, excessively nicked, worn, or has any other damage. Small nicks can be ground out when sharpening.

IMPORTANT! When sharpening blades, grind each blade the same amount to maintain balance. The difference in blade weights should not exceed 1 ounce. Unbalanced blades will cause excessive vibration which can damage gear box bearings. Vibration may also cause structural cracks in cutter housing.

Do Not heat, weld, or hard surface blades as this can alter material strength causing blades to fail in a hazardous manner that could cause injury.

Use only original equipment blades on this cutter. They are made of special heat-treated alloy steel. Substitute blades may not meet specifications and may fail in a hazardous manner that could cause injury.

BLADE SHARPENING

Always sharpen both blades at same time to maintain balance. Follow original sharpening pattern as shown in Figure Mnt-R-0008.Always sharpen blades by grinding. DO NOT heat and pound out edge. Do not sharpen blade to a razor edge, but leave a 1/16" blunt edge. Do not sharpen back side of blade.

Avoid personal injury. Always block the cutter up to prevent it from falling when the blades and/ or carrier are being serviced.

A60B/A72B 02/07 Maintenance Section 5-5

©2007 Alamo Group Inc.

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