SECTION 7 - MOWER ATTACHMENT SERVICE
7.4 CUTTING BLADE SERVICE
Check blades after each use for signs of excessive wear and damage. See Figure 7.4 for blade wear limits.
NEW BLADE
WEAR LIMIT (NOTCH STARTS)
DANGEROUS CONDITION!
DO NOT USE ON MOWER!
REPLACE WITH NEW BLADE.
FIGURE 7.4
1.Use the following chart for ordering replacement Blades for the 36” & 48” Mowing Decks.
STANDARD REPLACEMENT BLADES
36” DECK | 48” DECK |
7.4.1.BLADE REMOVAL AND SHARPENING
1.Place the mower on a smooth level surface, turn engine OFF, remove key, disconnect Spark Plug Wire from Spark Plug and secure Wire away from Plug.
2.Remove blades.
IMPORTANT: Note the number of blade spacers that are under the Blade Mounting Nuts and on the Spindle side of the Blade.
3.Clean and inspect each Blade for excessive wear and damage. Refer to Section “BLADE WEAR LIMITS”.
4.Refer to the STANDARD REPLACEMENT BLADE chart above for correct SNAPPER Replacement Blades.
5.Should Blades be in acceptable condition, sharpen at 22 to 28 degrees. DO NOT sharpen beyond original cutting edge. See Figure 7.5.
6.Balance each Blade after sharpening by grinding metal from the heavy end of the Blade.
7.Place the Blade mounting bolt through bevel washer and into Blade and place Blade Spacers over Bolt. Make certain each Blade is installed with the same amount of Spacers between blade and spindle.
WARNING
Blades are extremely sharp and can cause severe injury. Wear heavy leather gloves when handling or working around blades. DO NOT use a blade that is excessively worn or damaged.
HEAVY
END OF 22º TO 28º
BLADE
BLADE
BLADE TIP
1/64”
ORIGINAL CUTTING EDGE
FIGURE 7.5
NOTE: When sharpening Blades, leave 1/64” untouched. Razor sharp Blades dull quicker and damage easier. Commercial balancers are available and should be used in accordance with the manufacturers instructions.
8.Install Blade Mounting Bolt with spacers and Blade into spindle.
9.Install an equal amount of Blade Spacers onto each blade mounting bolt.
10.Install the Blade Mounting Nut on each Blade Mounting Bolt. See Figure 7.6.
11.Torque each Blade Mounting Bolt and Nut to 60 to 75 ft. lbs of torque.
AIR LIFT
BLADE SPACERS
BEVEL
WASHER
BLADE | BLADE | |
MOUNTING | ||
| ||
| BOLT |
TIGHTEN TO
FIGURE 7.6
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