Snapper 20HP, 19HP, 18HP user manual Servicing The Mower Blades, Regular Maintenance

Maintenance

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 a hex/spline washer and spring washer, then securely tightened. Torque blade mounting capscrew to 45-55 ft. lbs. (61-75 N.m.)

SERVICING THE MOWER BLADES

Service Interval: Every 10 Hours or As Required

1.Remove mower deck (see “Mower Deck Removal”).

2.See Figure 17. To remove blade for sharpening, use a block of wood to prevent blade rotation while loosening the capscrew.

3.Remove the capscrew (D, Figure 19), spring washer (C), hex washer (B), 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 (Figure 19) with the tabs pointing up toward the mower deck as shown.

7.Reinstall the hex washer (B, Figure 19), spring washer (C) and capscrew (D). Use a wooden block

(A) to prevent blade rotation while tightening the capscrew (D) to 45-55 ft. lbs. (61-75 N.m).

Figure 17. Blade Removal

Workbench

Nail

Figure 18. Balancing The Blade

B

C

D

A

Figure 19. Blade Installation

A.4x4 Wood Block

B.Hex Washer

C.Spring Washer

D.Blade Capscrew

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