BLADE SERVICE
CAUTION
Frequently check blades. They should be sharp, free of nicks and cracks, and securely fastened.
1.Inspect blades before each use to determine that they are mounted securely and are in good condi- tion.
2.Replace any blade that is bent, excessively nicked, worn, or has any other damage.
3.Small nicks can be ground out when sharpening.
Blade Removal
Do not handle blades with bare hands. Careless or improper handling may result in serious injury.
1.Remove bolt (1) which has right hand threads, Fig- ure 9.
2.Remove washer and blade.
Blade Sharpening
NOTICE
■When sharpening blades, be sure to balance them. Unbalanced blades will cause excessive vibration that can damage blade spindle bearings. Vibration may also cause structural cracks in mower housings.
Figure 8. Blade Balancing
1.Follow original sharpening pattern.
2.Do not sharpen blade to a razor edge, but leave approximately 1/64" blunt edge.
3.Do not sharpen back side of blade.
4.Sharpen both cutting edges equally to keep blade balanced. Balance blade using the method shown in Figure 8.
Blade Installation
CAUTION
Your dealer can supply genuine replacement blades. Substitute blades may not meet original equipment specifications and may be dangerous.
NOTICE
■When installing blade, the lift of the blade must be toward the spindle blade housing as shown in Figure 9. Torque bolt (1) into shaft assembly to 100
1.Place blade over blade pilot on the bottom of the shaft assembly.
2.Place bell washer (2) over blade and insert blade bolt (1). Torque blade bolt to 100
1.5/8 NF x
2.Bell washer, .64 x 2.47 x .25
Figure 9. Blade and Spindle Assembly
MAN0253 (Rev. 3/10/2007) | Service 17 |
|
|
