Troy-Bilt TB25SB String Trimmer: Fast Guide

Step 1

Read the operator's manual thoroughly before operating the unit. Follow all warnings and safety instructions. This fast guide is intended as a reference for users that have already read the operator's manual and are familiar with the necessary safety precautions.

Step 2

ASSEMBLY

Insert the short tab (the one without a hole) on the mount bracket into the slot on the cutting head shield. Insert the bolt on the cutting head shield into the hole on the mount bracket.

Diagram shows inserting a bolt through a shield and into a bracket.

Step 3

Place the washer and wing nut onto the bolt. Tighten the wing nut securely.

Diagram shows placing a washer and wing nut onto a bolt and tightening.

Step 4

Push the lower shaft housing into the coupler. The holes on the lower shaft housing should align with the holes on the coupler.

NOTE: If the holes do not align, remove the lower shaft housing, rotate the cutting head slightly (1/8th turn), and repeat this step.

Diagram shows pushing a shaft housing into a coupler and aligning holes.

Step 5

Insert the screws (x2) into the aligned holes. Tighten the screws securely with a #2 Phillips screwdriver.

Diagram shows inserting screws into aligned holes and tightening with a screwdriver.

Step 6

Push the handle down onto the upper shaft housing. Make sure the hex hole faces left. Insert the bolt into the hex hole. Place the washer onto the bolt. Screw the wing nut onto the bolt, but do not tighten it completely.

Diagram shows pushing a handle onto a shaft housing, inserting a bolt and washer, and partially tightening a wing nut.

Step 7

Move the handle to a comfortable location. Make sure the handle is positioned beyond the end of the safety label. Tighten the wing nut until the handle is secure.

Diagram shows moving and securing a handle on the shaft housing.

Step 8

Mix thoroughly in a separate fuel can:

• 3.2 fl. oz. of 2-cycle engine oil
• 1 gallon of fresh unleaded gasoline (less than 30 days old)

NOTE: Do not mix directly in the unit fuel tank.

Diagram shows oil and gasoline containers with a 40:1 ratio indicated.

Step 9

Position the unit with the fuel cap facing up. Slowly remove the fuel cap. Fill the fuel tank. Reinstall the fuel cap. Move the unit at least 30 ft. (9.1 m) from the fuel container and the fueling site before starting the engine.

Diagram shows positioning the unit, removing the fuel cap, and filling the tank.

Step 1

STARTING

PRIME: Slowly press and release the primer bulb 10 times, or until fuel is visible.

Diagram shows pressing a primer bulb.

Step 2

PRIME: Move the choke lever to Position 1.

Diagram shows moving a choke lever to position 1.

Step 3

PRIME: Crouch in the starting position.

Diagram shows a person in a starting position.

Step 4

PRIME: Squeeze and hold the throttle control.

NOTE: Continue to SQUEEZE and HOLD the throttle control for ALL further steps.

Diagram shows squeezing a throttle control.

Step 5

PRIME: Pull the starter rope with a controlled and steady motion 5 times.

DO NOT pull the starter rope more than 5 times.

Diagram shows pulling a starter rope.

Step 6

START: Move the choke lever to Position 2.

Pull the starter rope with a controlled and steady motion 5 to 10 times to start the engine.

Allow the engine to warm up for 60 seconds.

Diagram shows moving a choke lever to position 2 and pulling a starter rope.

Step 7

START: Move the choke lever to Position 3.

Allow the engine to warm up for an additional 60 seconds. The unit may be used during this time.

Diagram shows moving a choke lever to position 3.

DIDN'T START?

Repeat the starting instructions.

If the unit still fails to start, refer to the operator's manual for additional starting and troubleshooting information.