Regular Maintenance
WARNING
For your personal safety, do not handle the sharp mower blades with bare hands. Careless or improper handling of blades may result in serious injury.
WARNING
For your personal safety, blade mounting capscrews must each be installed with two spring washers or a hex washer and spring washer, then securely tightened. Torque blade mounting nut to 70 - 80 ft. lbs. (95 - 108 Nm). Torque blade mounting capscrew to 45 - 55 ft. lbs. (61 - 75 Nm).
Servicing the Mower Blades
Service Interval: Every 100 Hours or As Required
1.Remove mower deck (see “Mower Deck Removal”).
2.See Figure 19. To remove blade for sharpening, use a block of wood to prevent blade rotation while loosening the capscrew.
3.Remove the nut (C, Figure 20), spring washers (B), and blade. Or remove the capscrew (D, Figure 21), hex washer (B), spring washer (C), and blade.
4.Use a file to sharpen blade to a fine edge. If blade is damaged, it must be replaced.
5.Balance the blade as shown in Figure 18. Center the blade’s hole on a nail lubricated with a drop of oil. A balanced blade will remain level.
6.Reinstall the blade (Figures 21) with the tabs pointing up toward the mower deck as shown.
7.Reinstall the spring washers (B, Figure 20) and nut
(C). Use a wooden block (A) to prevent blade rotation while tightening the nut (C) to
Workbench |
Nail |
Figure 18. Balancing The Blade
LOOSEN
Figure 19. Blade Removal
A | B |
| |
| C |
Figure 20. Blade Installation Mowers (38“ & 42“ Mowers)
A.4x4 Wood Block
B.Spring Washers
C.Blade Nut
B |
A |
C |
D |
Figure 21. Blade Installation Mowers (44“ & 50“ Mowers)
A.4x4 Wood Block
B.Hex Washer
C.Spring Washer
D.Blade Capscrew
22