SECTION7: SERVICINGYOURMOWER
BladeCare
Periedically inspect the blade adapter and pulley for cracks, especially if you strike a foreign object. Replace when necessary.
_%== | WARNING: | When remeving the cutting |
_ | blade for sharpening or replacement, protect | |
whands by using heavy gleves or a thick rag te grasp the cutting blade.
•Disconnect spark plug wire frem spark plug.
•Turn mower en its side making sure that the air fi]ter and the carburetor are up.
To RemeveBlade
•Remove the bolt and the beT]washer that hold the blade_pulley assembly to the engine crankshaft.
See Figure "13. Remeve the assembly from the crankshaft.
•Remove the two belts and leck nuts from the blade assembly.
•Remove the blade from blade adapter and pulley.
To ReplaceBlade:
•Before reinstal]ing the blade_pul]ey assembly te the unit, lubricate the engine crankshaft and the inner surface ef the blade adapter with light oil
•Also lubricate the bolt heles, bolt and the inner surface ef the nuts.
•Install the blade adapter en the pulley with the "star" away frem the pulley. See Figure 13.
Lock Nut |
| Pulley |
Blade |
| .=_ Lock Nut |
Adapter _ | _ | Blade |
Flex Bolt _
Bell
Washer
Figure 13
•Place the new blade on the blade adapter with the side marked bottom (has a part number) facing away frem the adapter.
•Secu re the blade te the assembly with two hex bolts and leck nuts. Tighten the hex bolts to the
recommended torque. Refer to 'Blade Mounting Torque' information below.
•Install the blade assembly on the engine crankshaft. Secure with the hex bolt and bell
washer (cupped side of washer to blade) and tighten to the recommended torque. Refer to 'Blade Mounting Torque'information below.
IMPORTANT: The belt used te secure the blade te the engine is specially
order replacement belt, refer te the parts list in the back of this manual.
_ | WARNING: | To ensure safe operation of | |
ayour | unit, all nuts and | belts must be checked | |
........... | periodically | for correct | tightness. |
BladeMeuntlngTerque:
Blade adapter belts: 120 in.lbs, minimum, "150in.lbs. maximum.
Center belt: 450 tn.lbs, minimum, 600 tn.lbs, maximum. Ta SharpenBlade:
•The blade can be sharpened with a file or on a
grinding wheel. De net attempt te sharpen the blade while it is still on the mower.
•Follow the eriginal angle of grind as a guide. Make sure that each cutting edge receives an equal
ameunt ef grinding to prevent an unbalanced blade. An unbalanced blade will cause excessive vibration
when rotating at high speeds, may cause damage te the mower and/er personal iniury. Test the blade by
balancing it en a round shaft screwdriver or a blade balancer.
•If the blade is not balanced, remove metal from the heavy side until it balances evenly.
ReplacingDriveBelt
•Remove two shoulder screws securing the front drive cever to the mower deck. See Figure "14.
•Press inward en the sides ef the front drive cover and release the tabs that secure the front drive
cover to the height adiuster brackets. Remove drive cever from the mewer.
•Using a torx wrench, leesen the screw helding the belt tension spring to the transmission. See Figure "14. De not remeve the screw cempletely. As yeu loosen the screw, the tension on the belt will be released.
•Push the transmissien up a little and slide the belt off the transmission pulley.
•Lift the mower to access the belt from the underside of the mower.
13
