Cutting Blade Service; Blade Inspection; Blade Removal & Sharpening - Snapper SPLH152KW, SPLH172KW, SPA361, SPA481, SPA521, SPA611 Safety Instructions & Operator's Manual

SECTION 5 - MOWER ATTACHMENT SERVICE
5.1.5. SPINDLE TO
INSTALLATION - 48", 52", & 61" CUTTING
DECKS
1. Route new belt for 48" cutting deck, 52" cutting
deck, and 61" cutting decks, onto bottom groove of
center Spindle Pulley and left hand Spindle Pulley.
See Figure 5.3.
2. Install cutting deck belt according to CUTTING
DECK BELT INSTALLATION.

5.2 CUTTING BLADE SERVICE

Check Blades at frequent intervals to insure they are
securely tightened and in good condition. Replace if
chipped, bent, or notched. See Figure 5.4 for Blade
wear limits.
FIGURE 5.4
1. Use the following chart for ordering replacement
Blades for the 36", 48", 52" and 61" cutting decks.
STANDARD BLADE REPLACEMENT
36" DECK 48" DECK
2-9246 2-9247
5.2.1. BLADE REMOVAL AND SHARPENING
1. Move the Mower to a smooth, level surface, turn the
Ignition Key to STOP position, remove Key,
disconnect Spark Plug Wire from Spark Plug and
secure Wire away from Plug.
2. Remove Blades.
WARNING
Take NOTE of 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. See Figure 5.4 for Blade wear limits.
SPINDLE DECK BELT
NEW BLADE
WEAR LIMIT
(NOTCH STARTS)
DANGEROUS CONDITION!
DO NOT USE ON MOWER!
REPLACE WITH NEW
BLADE.
52" DECK 61" DECK
2-9246 2-9251
4. Refer to the STANDARD BLADE REPLACEMENT
chart above for correct SNAPPER replacement
Blades.
5. Should Blades be in acceptable condition, sharpen
at 22 to 28 degrees. See Figure 5.5.
HEAVY END
OF BLADE
BLADE
NOTE: When sharpening Blades, leave 1/64" untouched.
Razor sharp Blades will chip easily and dull quickly.
Commercial balancers are available and should be used
in accordance with the manufacturer's instructions.
6. Balance each Blade after sharpening by grinding
metal from the heavy end of the blade.
7. Place the Blade mounting bolt into Blade and place
Blade spacers over bolt. Make certain each blade is
installed with the same amount of spacers removed.
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 5.6.
11. Torque each Blade mounting bolt and nut to 70 - 80
foot-pounds.
HEIGHT
ADJUSTING
SPACERS
MOUNTING
BOLT
25
22º to 28º
BLADE TIP
1/64"
ORIGINAL CUTTING EDGE
FIGURE 5.5
BLADE
BEVELED
WASHER
TIGHTEN TO 70-80
FOOT POUNDS
FIGURE 5.6
AIR LIFT