Toro 108-7317, 108-7318 Installation Instructions

Form No. 3354-345 Rev A

Chain-Drive Hex Shaft Service Kit Clutch-Drive Hex Shaft Service Kit

For 2005 and Before Power Max® Snowthrowers

Model No. 108-7317 Model No. 108-7318

Installation Instructions

1. Bearing retainer (2)

2. Bushing spacer (chain drive kit only)

3. Sprocket 6. Square key

4. Screw

5. Keyway

Instructions

Note: In Figure 1 abo v e , A is the c hain-dri v e hex

shaft ser vice kit and B is the clutc h-dri v e hex shaft ser vice kit.

1. Disassemble the traction dri v e assembly .

Note: R efer to ser vice man ual 492-9138.

Figure 1

7. Roll pin 10. Hex shaft

8. Rubber friction wheel

9. Hex trunnion

2. R emo v e the r ubber friction wheel from the old hex shaft assembly (if y ou are using it with the kit).

3. Mount the r ubber friction wheel on the new hex tr unnion using the hardw are from the old assembly , ensuring that the r ubber wheel is oriented o v er the tr unnion.

4. Apply a light coat of oil to the hex por tion of the hex shaft.

5. Slide the r ubber friction wheel and hex tr unnion assembly onto the hex shaft, ensuring that the r ubber friction wheel is oriented on the side closest to the k eyw a y (c hain-dri v e model only).

6. Assemble the roll pins on the hex shaft with the hex tr unnion assembly betw een them.

Note: T he roll pins should be centered on the hex shaft.

7. Place the square k ey in the k eyw a y on the hex shaft.

8. Assemble the sproc k et onto the hex shaft and o v er the k ey .

Note: T he sproc k et should be ﬂush ag ainst the hex shaft shoulder and the k ey should not protr ude bey ond the sproc k et.

9. Tighten the sproc k et to the hex shaft and k eyw a y using the set screws pro vided. T or que the screws to 60 to 80 in-lb .

10. R e peat ste ps 7 through 9 for the other end of the hex shaft (clutc h-dri v e model only).

11. Assemble the spacer onto the sproc k et end of the hex shaft (c hain-dri v e model only).

12. Inser t one of the bearing retainers through the hole in the sno wthro w er frame and secure it to the frame using the screws that y ou previously remo v ed.

13. Inser t the end of the hex shaft assembly into the bearing retainer so that the hex tr unnion is on the right side of the r ubber friction wheel ( Figure 1 ).

14. Inser t the other bearing retainer through the hole in the other side of the sno wthro w er frame and capture the other end of the hex shaft assembly with the bearing retainer .

15. Secure the bearing retainer to the sno wthro w er frame using the screws that y ou previously remo v ed.

16. Attac h the c hains and g rease the components .

17. Assemble the remaining traction dri v e components .

Note: R efer to the ser vice man ual.

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