Troy-Bilt 52066, 52070 Operation, PRE-START Checklist, Fill Fuel Tank, Adjust Handlebar Height

10

Section

4

Operation

WARNING

Before operating your machine, carefully read and understand all safety, controls and operating instructions in this Manual, in the separate Engine Owner’s Manual, and on the decals on the machine.

Failure to follow these instructions can result in serious personal injury.

INTRODUCTION

Read this Section thoroughly before start- ing the engine. As with any piece of out- door power equipment, getting the “feel” for how the machine operates and know- ing the best techniques for particular jobs are important to overall good performance.

NOTE: References to LEFT, RIGHT, FRONT and REAR of the unit are determined by standing in the operator’s position.

PRE-START CHECKLIST

1.	Review Section 1: “Safety” and Section
3: “Features and Controls”.
2.	Check for loose or missing hardware.
Tighten or replace as needed.

FILL FUEL TANK

DANGER

GASOLINE IS HIGHLY FLAMMABLE AND ITS VAPORS ARE EXPLOSIVE.

Follow gasoline safety rules in this Manual (see Section 1) and in the separate Engine Owner’s Manual.

Failure to follow gasoline safety rules and instructions can result in serious personal injury and property damage.

1.Lift and tilt plastic debris shield (E, Figure 3-1) forward.

2.Clean fuel fill area and engine (see

“Cleaning Debris” in engine manual) each time before fuel is added.

3.Fill the fuel tank with gasoline accord- ing to the directions in the engine manual. Follow all instructions and safety rules carefully.

4.Securely replace the fuel tank cap and the fuel container cap. Promptly wipe up any fuel spills.

5.Lift and tilt the debris shield back, then push it down to secure it.

CAUTION

Before adjusting the cutting height, shut off the engine, wait for all moving parts to stop, allow the engine to cool, discon- nect the spark plug wire and prevent it from touching the spark plug.

Failure to comply could result in per- sonal injury or property damage.

To adjust the cutting height:

1.The cutting line height can be changed when the wear cup is in contact with the ground. If necessary, you may tip the unit back slightly for a better view (do not tip unit all the way back or motor oil may flow to the exhaust area and the engine may smoke for several seconds when started).

2.Use a 1/2" wrench to loosen the two bolts (not the nuts) located on opposite sides of the trimmer head (A, Figure 4-1).

3.The cutting heights are marked on the side of the spindle head (Figure 4-2). Move the top of the trimmer head to the desired setting.

4.Tighten both trimmer head bolts securely (to 75 in/lbs.) and evenly.

3.	Check that the engine oil level is up to
the “FULL” mark on the dipstick. (See
engine manual for instructions.)
4.	Check the fuel level. (See engine
manual and this page for instructions.)

NOTE: Clean debris from around fuel cap, oil dipstick and engine (see “Cleaning Debris” in engine manual) before checking oil level or adding gasoline.

5.Check the Trimmer Head Control Bail and the Engine Throttle Control Lever for freedom of movement.

6.Select the cutting height (see “Adjust Line Cutting Height” in this Section).

7.Check handlebar height position.

8.Carefully check the area to be trimmed and remove any debris.

9.Install the correct diameter trimmer line (see “Use the Correct Diameter Trim- mer Line” in this Section).

10. On electric start models, check the wire harness connections.

11. Attach the spark plug wire to the spark plug.

ADJUST HANDLEBAR HEIGHT

CAUTION

Before adjusting handlebar height, stop engine and wait for all moving parts to stop, disconnect spark plug wire and prevent it from touching spark plug.

Failure to comply could result in personal injury or property damage.

To adjust handlebar height, refer to “Install Handlebars” in Section 2.

ADJUST LINE CUTTING HEIGHT

The cutting height of the trimmer line can be adjusted between 1-1/2" to 4-1/2". We recommend that you start at a higher set- ting and make adjustments as needed.

In general, use higher settings to handle taller material and to cope with tougher cutting conditions. Use any trimming height for less demanding conditions.

A

A

Figure 4-1

Height

Guide

Figure 4-2