Troy-Bilt 469 Manuel D’Utilisation
12
Engine
•
Follow the engine manual instructions and
recommended schedule for lubricating engine
components.
recommended schedule for lubricating engine
components.
Blade Care
•
Periodically inspect the blade adapter and pulley
for cracks, especially if you strike a foreign object.
Replace when necessary.
for cracks, especially if you strike a foreign object.
Replace when necessary.
•
Disconnect spark plug wire from spark plug.
•
Turn mower on its side making sure that the air filter
and the carburetor are up.
and the carburetor are up.
To Remove Blade:
•
Remove the hex bolt which holds the blade
adapter-pulley assembly to the engine crankshaft.
See Figure 10 . Remove the pulley assembly and
the bell support from the crankshaft.
adapter-pulley assembly to the engine crankshaft.
See Figure 10 . Remove the pulley assembly and
the bell support from the crankshaft.
•
Remove blade from the blade adapter and pulley.
Figure 10
To Replace Blade:
•
Before reinstalling the blade-pulley assembly to the
unit, lubricate the engine crankshaft and the inner
surface of the blade adapter with light oil.
unit, lubricate the engine crankshaft and the inner
surface of the blade adapter with light oil.
•
Also lubricate the bolt hole and the hex bolt.
•
Insert the hex bolt, earlier removed, through the
center holes on the blade bell support and the
blade adapter-pulley assembly respectively.
center holes on the blade bell support and the
blade adapter-pulley assembly respectively.
•
Install the blade assembly on the crankshaft.
Tighten the hex bolt to the recommended torque.
Tighten the hex bolt to the recommended torque.
Blade Mounting Torque:
Center bolt: 450 in.lbs. minimum, 600
in.lbs. maximum.
in.lbs. maximum.
IMPORTANT:
The bolt used to secure the blade to the
engine is specially heat-treated. Do not substitute. To
order replacement bolt, refer to the parts list in the back
of this manual.
order replacement bolt, refer to the parts list in the back
of this manual.
To Sharpen Blade:
•
The blade can be sharpened with a file or on a
grinding wheel. Do not attempt to sharpen the
blade while it is still on the mower.
grinding wheel. Do not attempt to sharpen the
blade while it is still on the mower.
•
Follow the original angle of grind as a guide. Make
sure that each cutting edge receives an equal
amount of grinding to prevent an unbalanced blade.
sure that each cutting edge receives an equal
amount of grinding to prevent an unbalanced blade.
NOTE: An unbalanced blade will cause excessive
vibration when rotating at high speeds, may cause
damage to the mower and could break, causing
personal injury. Test the blade by balancing it on a
round shaft screwdriver or a blade balancer.
vibration when rotating at high speeds, may cause
damage to the mower and could break, causing
personal injury. Test the blade by balancing it on a
round shaft screwdriver or a blade balancer.
•
If the blade is not balanced, remove metal from the
heavy side until it balances evenly.
heavy side until it balances evenly.
WARNING:
When removing the cutting
blade for sharpening or replacement, protect
hands by using heavy gloves or a thick rag to
grasp the cutting blade.
hands by using heavy gloves or a thick rag to
grasp the cutting blade.
Adapter-Pulley
Assembly
Blade
Hex Bolt
Blade Bell
Support
Support
WARNING:
To ensure safe operation of
your unit, all nuts and bolts must be checked
periodically for correct tightness.
periodically for correct tightness.