Troy-Bilt TB2450 Benutzerhandbuch

4. 

To properly sharpen the cutting blades, remove equal 

amounts of metal from both ends of the blades along the 

cutting edges, parallel to the trailing edge, at a 25° to 30° 

angle. Always grind each cutting blade edge equally to 

maintain proper blade balance. See Figure 7-6.

If the cutting edge of the blade has 

previously been sharpened, or if any metal 

separation is present, replace the blades with new 

ones.

A poorly balanced blade will cause 

excessive vibration, may damage to the tractor and/

or result in personal injury.

5. 

Test the blade’s balance using a blade balancer. Grind 

metal from the heavy side until it balances evenly.

NOTE: When replacing the blade, be sure to install the blade with 

the side of the blade marked ‘‘Bottom’’ (or with a part number 

stamped in it) facing the ground when the mower is in the 

operating position.

Use a torque wrench to tighten the 

blade spindle hex flange nut to between 70 lbs-ft 

and 90 lbs-ft.

: 

Battery posts, terminals, and related accessories 

contain lead and lead compounds, chemicals known 

to the State of California to cause cancer and 

reproductive harm. Wash hands after handling.

If removing the battery, disconnect the 

NEGATIVE (Black) wire from it’s terminal first, 

followed by the POSITIVE (Red) wire. When re-

installing the battery, always connect the POSITIVE 

(Red) wire its terminal first, followed by the 

NEGATIVE (Black) wire.

Never jump start a damaged or frozen 

battery. Be certain the vehicles do not touch, and 

ignitions are off. Do not allow cable clamps to touch.

1. 

Connect positive (+) cable to positive (+)  post of your 

tractor’s discharged battery.

2. 

Connect the other end of the cable to the positive (+) post 

of the jumper battery.

3. 

Connect the negative (–) cable to the negative (–) post of 

the jumper battery.

4. 

Make the final connection on the engine block of the 

tractor, away from the battery. Attach to an unpainted part 

to assure a good connection.

If the jumper battery is installed on a 

vehicle (i.e. car, truck), do NOT start the vehicle’s 

engine when jump starting your tractor.

5. 

Start the tractor (as instructed in the Operation section of 

this manual).

6. 

Set the tractor’s parking brake before removing the jumper 

cables, in reverse order of connection.

Batteries give off an explosive gas 

while charging. Charge the battery in a well 

ventilated area and keep away from an open flame 

or pilot light as on a water heater, space heater, 

furnace, clothes dryer or other gas appliances.

When charging your tractor’s battery, 

use only a charger designed for 12V lead-acid 

batteries. Read your battery charger’s Owner’s 

Manual prior to charging your tractor’s battery. 

Always follow its instructions and heed its warnings.

If your tractor has not been put into use for an extended period 

of time, charge the battery as follows:
1. 

Set your battery charger to deliver a max of 10 amperes.

2. 

If your battery charger is automatic, charge the battery 

until the charger indicates that charging is complete. If the 

charger is not automatic, charge for no fewer than eight 

hours.