Troy-Bilt 429 用户手册

Figure 5-3: Cut wire rod to remove the rear flap.

Periodically inspect the blade adapter for cracks, 
especially if you strike a foreign object. Replace when 
necessary. Follow the steps below for blade service.
1.  Disconnect spark plug wire from spark plug. Turn 

mower on its side making sure that the air filter and 
the carburetor are up.

2.  Remove the bolt and the bell blade support which 

hold the blade and the blade adapter to the engine 
crankshaft, Figure 5-2.

3.  Remove blade and adapter from the crankshaft.
4.  The blade can be sharpened with a file or on a grind-

ing wheel. Do not attempt to sharpen the blade while 
it is still on the mower. When sharpening the blade, 
follow the original angle of grind and grind each cut-
ting edge equally to keep the blade balanced. Balance 
the blade on a round shaft screwdriver. Remove metal 
from the heavy side until it balances evenly. 

speeds. It may cause damage to mower, and could 
break causing personal injury.
5.  Lubricate the engine crankshaft and slide the blade 

adapter onto the engine crankshaft. 

6.  Place the blade on the adapter such that the side 

of the blade marked “Bottom” (or with part number) 
faces the ground when the mower is in the operating 
position. Make sure that the blade is aligned and 
seated on the blade adapter flanges.

7.  Place blade bell support on the blade. Align notches 

on the blade bell support with small holes in blade.

8.  Replace hex bolt and tighten hex bolt to torque: 450 

in. lbs. min., 600 in. lbs. max.

To ensure safe operation of your mower, periodically 
check the blade bolt for correct torque.

1.  To remove rear flap, cut off the flat end of the wire rod 

which secures it to the deck, Figure 5-3. 

2.  Attach the new flap and new rod to deck, bending the 

ends of the new rod over to secure to deck.

The following steps should be taken to prepare your 
lawn mower for storage.
•  Clean and lubricate mower thoroughly as described 

in the lubrication instructions.

•  We do not recommend the use of a pressure washer 

or garden hose to clean your unit.

•  Refer to engine manual for correct engine  

storage instructions.

•  Coat mower’s cutting blade with chassis grease to 

prevent rusting.

•  Store mower in a dry, clean area. Do not store next 

to corrosive materials, such as fertilizer.

When storing any type of power equipment in a poorly 
ventilated or metal storage shed, care should be taken 
to rust-proof the equipment. Using a light oil or silicone, 
coat the equipment, especially cables and all moving 
parts of your lawn mower before storage.

Figure 5-2: Remove blade and hardware.