Craftsman 316.34107 manual Replacing the Guide BAR, Remove Old Bar

MAINTENANCE AND REPAIR INSTRUCTIONS

REPLACING THE GUIDE BAR

CAUTION: Disconnect the chain saw from power

source before checking or adjusting the chain saw tension.

These instructions are for replacing a bar. The unit is fully assembled when shipped.

NOTE: Always wear heavy gloves when handling the saw chain.

Remove Old Bar

1.Place the power unit on a flat surface, on its side with chain tensioner facing up.

2.Loosen knob (B) slightly by turning knob counter- clockwise and then turn the chain tension ring (C) counter-clockwise to relieve chain tension (Fig. 17).

3.To remove the sprocket cover (A), turn knob (B) com- pletely counter-clockwise. (Fig. 17)

4.Remove saw chain from around the guide bar (E) and the sprocket (F). Slide the guide bar (E) with tension plate (D) attached, from the unit. (Fig. 18)

5.Remove screw with lock washer (G) from the tension plate (D) to remove plate from the old bar. Then attach tension plate (D) to the new bar using screw with lock washer (G). Tighten securely with Phillips screw driver (Fig. 19).

C

B

A

Fig. 17

F

D E

Fig. 18

G

D

Install Saw Chain

WARNING: Always use protec- tive gloves when

handling the saw chain.

1.Spread the chain out with the cutting edges (H) of the chain pointing in the DIRECTION OF ROTATION.

2.Fit chain into groove of guide bar.

NOTE: The chain must be installed in the correct direction (Fig. 20).

Install New Bar

1.Install bar and chain on to power unit. Turn the ten- sion plate (D) counter-clockwise until chain fits around sprocket (F) and guide bar (E) (Fig. 20A).

2.Install sproket cover (A) on to power unit (Fig. 20B)

3.For final adjustment, hold the tip of the bar (E) up and tighten chain tension ring (C). Then tighten the knob

(B)(Fig.21).

4.Follow the tension adjustment instructions in the next section.

H

Fig. 20

D EC

F			D
		A
	Fig. 20A	Fig. 20B
	C
		E

B

Fig. 19		Fig. 21
	14