Cleaning And Storage; Optional Accessory; Troubleshooting Chart; Specifications - Troy-Bilt TB80 EC Operator's Manual

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Operator's manual (16 pages)

Table of Contents

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MAINTENANCE AND REPAIR INSTRUCTIONS

MAINTAINING THE SPARK PLUG

1. Stop the engine and allow it to cool. Grasp the spark plug boot firmly and pull it from the spark plug.

2. Clean around the spark plug. Remove the spark plug from the cylinder head with a 5/8-inch socket, turning

counterclockwise.

WARNING:

Do not sand blast, scrape or clean spark plug

electrodes. Grit in the engine could damage the cylinder.

3. Inspect the spark plug. If the spark plug is cracked, fouled or dirty, replace it with

a replacement part #753-06193, a Champion RDJ7J or an equivalent spark plug.

4. Use a feeler gauge to set the air gap at 0.025 in. (0.635 mm) (Fig. 27).

5. Install the spark plug in the cylinder head. Tighten the spark plug with a 5/8-inch

socket, turning it clockwise until snug.

NOTE:

If using a torque wrench, torque to:

110-120 in.•lb. (12.3-13.5 N•m). Do not over tighten.

6. Reattach the spark plug boot.

CLEANING AND STORAGE

CLEANING

WARNING:

To avoid serious personal injury, always stop the engine and allow it to cool before

cleaning or maintaining the unit.

Use a small brush to clean the outside of the unit. Do not use strong detergents. Household cleaners that contain

aromatic oils such as pine and lemon, and solvents such as kerosene, can damage plastic. Wipe off any moisture with

a soft cloth.

STORAGE

• Never store a fueled unit where fumes may reach an open flame or spark.

• Allow the engine to cool before storing.

• Lock up the unit to prevent unauthorized use or damage.

• Store the unit in a dry, well-ventilated area.

• Store the unit out of the reach of children.

Short-term Storage (1-2 weeks)

1. Store the unit in a horizontal position. If this is not possible, store the unit vertically with the engine at the top.

Long-term Storage

1. Remove the fuel cap, tip the unit and drain the fuel into an approved container.

2. Start the engine and allow it to run until it stalls. This ensures that all fuel has been drained from the carburetor.

3. Allow the engine to cool. Remove the spark plug and put 5 drops of any high quality motor oil or 2-cycle oil into the

cylinder. Pull the starter rope slowly to distribute the oil. Reinstall the spark plug.

4. Thoroughly clean the unit and inspect it for any loose or damaged parts. Repair or replace damaged parts and

tighten loose screws, nuts or bolts.

Preparing the Unit for Use after Long-term Storage

1. Remove the spark plug and drain all of the oil from the cylinder.

NOTE:

Do not use fuel that has been stored for more than 30 days. Dispose of old fuel according to federal, state

and local regulations.

OPTIONAL ACCESSORY

ELECTRIC STARTER AND POWER START BIT™ FEATURES

This unit is designed to be started with an optional electric starter or Power Start Bit™ that are sold separately. If choosing

to start the unit using one of these features or have questions please contact your local retailer or call 1-800-828-5500 U.S,

(1-800-668-1238 Canada), for more information and purchasing. You may also go to www.troybilt.com or

www.troybilt.ca.

ENGINE WILL NOT START

Empty fuel tank

Primer bulb wasn't pressed enough

Engine is flooded

Old or improperly mixed fuel

Fouled spark plug

0.025 in.

(0.635 mm)

ENGINE WILL NOT IDLE

Fig. 27

Air filter is plugged

Old or improperly mixed fuel

The idle speed is incorrect

ENGINE WILL NOT ACCELERATE

Old or improperly mixed fuel

Cutting head bound with grass

Dirty air filter

ENGINE LACKS POWER OR STALLS

Old or improperly mixed fuel

Fouled spark plug

ENGINE STOPS WHILE IN USE

Engine overspeed protection engaged

CUTTING HEAD WILL NOT ADVANCE LINE

Cutting head bound with grass

Cutting head out of line

Inner reel bound up

Cutting head dirty

Line welded

Line twisted when refilled

Not enough line is exposed

CUTTING LINE ADVANCES UNCONTROLLABLY

Oil, cleaner or lubricant in cutting head

IF FURTHER ASSISTANCE IS REQUIRED, CONTACT AN AUTHORIZED SERVICE DEALER.

Engine Type. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Air-Cooled, 2-Cycle

Displacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 cc

Operating RPM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,800+ rpm

Idle Speed RPM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2,800 - 3,400 rpm

Spark Plug Gap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.025 in. (0.635 mm)

Lubrication. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Fuel/Oil Mixture

Fuel/Oil Ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40:1

Fuel Tank Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 fl.oz. (414 ml)

Total Approximate Unit Weight (without fuel) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 lbs. (4.5 kg)

Cutting Mechanism. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Bump Head™

Shoulder Strap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Optional

Trimming Line Diameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.095 in. (2.41 mm)

Cutting Path Diameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 in. (40.64 cm)

*All specifications are based on the latest product information available at the time of printing. We reserve the right to

make changes at any time without notice.

Electric Start Feature

Fig. 28

TROUBLESHOOTING

CAUSE