Snapper SPLH153KW, SPLH173KW, SPA361, SPA481, SPA521, SPA611 Cutting Blade Service

Page 25

SECTION 5 - MOWER ATTACHMENT SERVICE

5.1.5. SPINDLE TO SPINDLE DECK BELT 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.

NEW BLADE

WEAR LIMIT

(NOTCH STARTS)

DANGEROUS CONDITION!

DO NOT USE ON MOWER!

REPLACE WITH NEW

BLADE.

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

52” DECK

61” DECK

2-9246

2-9247

2-9246

2-9251

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.

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

22º to 28º

OF BLADE

 

BLADE

 

BLADE TIP

1/64”

ORIGINAL CUTTING EDGE

FIGURE 5.5

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.

AIR LIFT

HEIGHT

ADJUSTING

SPACERS

BLADE

BEVELED

WASHER

TIGHTEN TO 70-80

MOUNTINGFOOT POUNDS

BOLT

FIGURE 5.6

25

Image 25
Contents Model Number Explanation PRO Hydro Walk Behind Mowers MID-SIZE SeriesProtection for Children Important Safety InstructionsSlope Operation PreparationOperation Safe Handling of GasolineMaintenance Table of Contents Introduction FamiliarizationNomenclature Safety Messages and Symbols Read OPERATOR’S Manual Safety Messages and Symbols Engine Controls ControlsBlade and Traction Controls Safety Interlock System Checks PRE-START ChecklistOperating Instructions Before OperatingStarting and Operating StoppingMower Operation Traction Speed ControlForward Speed Reverse SpeedMowing and Turning on Hillsides Handle Height AdjustmentRemove Lower Left Side of Machine Shown Bolt & NUT Adjusting Caster Wheels Cutting Height AdjustmentSide Profile of Machine Adjusting Fixed Deck AttachmentSymptom Problem Engine TroubleshootingSolution Controls & Linkages Service & Lubrication InformationGrease Grease Zerk Location Daily Weekly Hours Procedure CommentsElectric Clutch Adjustment ServiceHydraulic System Adjustments Service Replacement Parts Hydraulic Pump Belt InstallationMachine Speed Control Ranges To Change Machine Speed RangesTraction Control Neutral Adjustment Cutter Deck Belt Removal & Installation Mower Attachment ServiceStandard Blade Replacement Cutting Blade ServiceBlade Removal and Sharpening Bearing Replacement Mower Attachment ServiceBattery Installation Battery RemovalBattery Service Battery TestingDo not Overfill NEW Battery PreparationDisclaimer of Warranty Year Limited WarrantySnapper Product Registration Form Primary Maintenance Primary Maintenance Primary Maintenance Primary Maintenance Service Notes Service Notes PRO Hydro MID-SIZE Walk Behind Mowers Series