Troy-Bilt TB4000 Remove The Cutting Blade And Install The Cutting Attachment, Assembly continued

Assembly (continued)

1/4-1/2 turn

Counterclockwise

Fig. 3-13

Clockwise

Fig. 3-14

Cutting Attachment

Blade Retainer

Output Shaft

Bushing

Locking Rod

Fig. 3-15

6.Align the shaft bushing hole with the locking rod slot and insert the locking rod into the bushing hole (Fig. 3-8, Pg. 10).

7.Put the blade retainer and nut on the output shaft. Make sure that the blade is installed correctly.

8.Tighten nut counterclockwise against the blade while holding the locking rod;

•If using a torque wrench and an 5/8 inch socket tighten to;

325 - 335 in•lb,

27 - 28 ft.•lb,

37 -38 N•m.

•Without a torque wrench, use a 5/8 inch closed-end or socket wrench, turning the nut until the blade retainer is snug against the shaft bushing. Make sure that the blade is installed correctly, then rotate the nut an additional 1/4 to 1/2 turn counterclockwise (Fig. 3-13).

9. Remove the locking rod from the locking rod slot.

To avoid serious personal injury or damage to the unit, do not start or operate this unit with the locking rod in the locking rod slot.

Do not sharpen the cutting blade. Sharpening the blade can cause the blade tip to break off while in use. This can result in severe personal injury. Replace the blade.

REMOVE THE CUTTING BLADE AND INSTALL THE CUTTING ATTACHMENT

Remove the Cutting Blade

To avoid serious personal injury, always wear gloves while handling or installing the blade.

1.Align the shaft bushing hole with the locking rod slot and insert the locking rod into the bushing hole (Fig. 3-8, Pg. 10).

2.Hold the locking rod in place by grasping it next to the boom of the unit (Fig. 3-14).

3.While holding the locking rod, loosen the nut on the blade by turning it clockwise with a 5/8 inch closed-end or socket wrench (Fig. 3-14).

4.Remove the nut, blade retainer, and blade. Store the nut and blade together for future use in a secure place. Store out of reach of children.

Install the Cutting Attachment

5.Align the shaft bushing hole with the locking rod slot and insert the locking rod into the shaft bush- ing hole. (Fig. 3-8, Pg. 10). Place the blade retainer on the output shaft with the flat surface against the output shaft bushing as shown in Fig. 3-15. Screw the cutting attachment counterclockwise onto the output shaft. Tighten securely.

NOTE: The blade retainer must be installed on the output shaft in the position shown for the cutting attachment to work correctly.

6.Remove the locking rod.

7.Install the cutting attachment shield. See Section 3, Assembly, Remove and Install Cutting Attachment Shield.

To avoid serious personal injury, the cutting attachment shield SHALL be in place at all times while operating the unit as a grass trimmer.

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