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Troy-Bilt TB125B Manual Del Operador página 15

Cortadora de césped de empuje

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DECK CLEANING
At least once a season and before storage, clean the underside of
the mower deck to prevent build-up of grass clippings or other
debris.
1. Allow the engine to run until it is out of fuel. Do not attempt
to pour fuel from the engine. Disconnect spark plug wire.
Refer to Engine Operator's Manual.
2. Turn mower on its side keeping the muffler side down and
making sure that the air filter and the carburetor are facing
up. Hold mower firmly.
3. Scrape and clean the underside of the deck with a suitable
tool. Do not spray with water.
IMPORTANT: Do not use a pressure washer or garden hose to
clean your mower. These may cause damage to bearings or
the engine. The use of water will result in shortened life and
reduce serviceability.
4. Put the mower back on its wheels on the ground.
Blade Care
WARNING
Wait for the blade to stop completely before performing
any work on the mower or to remove the grass catcher.
Check blade stopping time is within 3 seconds. If blade
does not stop within 3 seconds contact your Service Center.
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.
Annually check the mower blade mounting bolt torque: Min. 37.5
ft-lbs (50.8 N-m), Max. 50.0 ft-lbs (67.8 N-m).
Periodically inspect the blade and blade adapter for bends or
cracks, especially if you strike a foreign object or experience
excessive vibration. Replace when necessary. Follow the steps
below for blade service:
1. Allow the engine to run until it is out of fuel. Do not attempt
to pour fuel from the engine.
2. Disconnect spark plug wire. Refer to Engine Operator's
Manual.
3. Turn mower on its side keeping the muffler side down and
making sure that the air filter and the carburetor are facing
up.
4. Remove bolt (a) and blade bell support (b) which hold the
blade and the blade adapter to the engine crankshaft
(Figure 24).
5. Remove blade (c) and blade adapter (d) from the crankshaft
(Figure 24).
SERVICE AND MAINTENANCE
6. Remove blade from the blade adapter for testing balance.
a. Balance the blade on a round shaft screwdriver to check.
b. Remove metal from the heavy side until it balances
evenly.
NOTE: When sharpening the blade, follow the original angle
of grind. Grind each cutting edge equally to keep the blade
balanced.
An unbalanced blade will cause excessive vibration when
rotating at high speeds. It may cause damage to engine
and blade could break causing personal injury.
7. Lubricate the engine crankshaft and the inner surface of the
blade adapter with light oil. See inset, Figure 24.
a. Slide the blade adapter (d) onto the engine crankshaft.
b. Place the blade on the adapter such that the side of the
blade marked "Grass Side" (or with part number) faces the
ground when the mower is in the operating position.
c. Make sure that the blade is aligned and seated on the
blade adapter flanges.
8. Place blade bell support (b) on the blade (c). Align notches on
the blade bell support with small holes in blade.
9. Replace hex bolt (a) and tighten hex bolt to torque: Min. 37.5
ft-lbs (50.8 N-m), Max. 50.0 ft-lbs (67.8 N-m).
NOTE: To ensure safe operation of your mower, periodically check
the blade bolt for correct torque.
15
WARNING
d
b
a
Figure 24
c

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