Troy-Bilt 549 Benutzerhandbuch

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SECTION 7:  MAINTAINING YOUR LAWN MOWER
Cleaning Mower
The underside of the mower deck should be cleaned 
after each use to prevent any build-up of grass 
clippings, leaves, dirt, or other debris. 
NOTE:  We do not recommend the use of pressure
washers or garden hose to clean your unit. These may
cause damage to bearings or the engine. The use of
water will result in shortened life and reduce
serviceability.
Disconnect spark plug wire. Drain the gasoline from 
the lawn mower, or place a piece of plastic under 
the gas cap.
Tip the mower so that it rests on the housing. Keep 
the side with the air cleaner facing up. Hold the 
mower firmly.
Scrape and clean the underside of the deck with a 
suitable tool. Do not spray with water. 
Put the mower back on its wheels on the ground. If 
you had put plastic under the gas cap, make sure to 
remove it now.
Lubrication 
Blade Control Handle
Lubricate the pivot points on the blade control 
handle at least once a season with light oil. The 
blade control must operate freely in both directions. 
Wheels
Lubricate the wheels and bearings, if so equipped, 
at least once a season with light oil or engine oil. 
Also, if the wheels are removed for any reason, 
lubricate the surface of the pivot arm axle and the 
inner surface of the wheel with light oil. 
Rear Discharge Door
Lubricate the torsion spring and the pivot point on 
each end of the rear discharge door using a light oil. 
This will prevent rusting of the discharge door.
Engine Care
Follow the accompanying engine manual for detailed 
list and instructions. 
SECTION 8:  SERVICING YOUR LAWN MOWER
Blade Care
Periodically inspect the blade adapter for cracks, 
especially if you strike a foreign object. Replace when 
necessary.
Removing the Blade
Disconnect spark plug wire from spark plug.
Turn mower on its side making sure that the air filter 
and the carburetor are up.
Remove the bolt and the blade bell support which 
hold the blade and the blade adapter to the engine 
crankshaft. See Figure 13.
Remove the blade and the adapter from the 
crankshaft.
Figure 13
Sharpening the 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.
WARNING: 
Always stop the engine and 
disconnect the spark plug wire before 
performing any maintenance work or 
adjustments on your lawn mower.
WARNING: 
Never tip the mower more than 
90 degrees in any directions and do not leave 
the mower tipped for any length of time. Oil can 
drain into the upper part of the engine causing 
a starting problem.
WARNING: 
Make sure to avoid muffler and 
surrounding areas while the mower engine is 
hot because temperature of these areas of the 
engine may exceed 150
o
 F.
WARNING: 
When removing the cutting 
blade for sharpening or replacement, protect 
your hands with a pair of heavy gloves or use a 
heavy rag to hold the blade.
Blade
Hex Bolt
Blade Bell
 Adapter
 Support