TORO 161-3934 Long Life Rotor Blade Kit Instruction Manual
- June 1, 2024
- Toro
Table of Contents
TORO 161-3934 Long Life Rotor Blade Kit
Specifications
- Product: Long Life Rotor Blade Kit
- Compatible with: 20in or 21in Single-Stage Snowthrower
- Model No.: 161-3934
- Form No.: 3467-789 Rev A
Product Usage Instructions
Preparing the Machine
No Parts Required
- Procedure:
- Note: Use Figure 2 as a reference for removing the old rotor blades.
- Prepare the machine:
- For gas-powered machines:
- Shut off the engine.
- Wait for all moving parts to stop.
- Disconnect the wire from the spark plug.
- For battery-powered machines:
- Release the bail.
- Wait for all moving parts to stop.
- Remove the electric-start button and battery pack from the machine.
- Remove 1 existing rotor blade:
- Remove the 4 locknuts and 4 countersunk bolts securing each side of the rotor blade to the rotor assembly.
- Remove the 2 bolts (1/4 x 7/8 inch) and 2 locknuts securing the rotor blade to the half rotors.
- Loosen (but do not remove) the center bolt (1/4 x 1-1/4 inches) and the final locknut that secures the rotor blade to the half rotors.
- Remove the rotor blade.
Installing the New Rotor Blades
Parts needed for this procedure
-
Procedure:
-
Note: Use Figure 2 as a reference for installing the new rotor blades.
-
Insert 2 spacers into each new rotor blade.
-
Secure the rotor blade to the half rotors using 2 locknuts and 2 bolts (1/4 x 7/8 inch). Install the rotor blade with the thick rubber layer on the inside of the curve.
-
Secure the sides of the rotor blade to the rotor assembly using 4 countersunk bolts and 4 locknuts.
-
Repeat steps for the remaining new rotor blade.
-
Tighten the center bolt (1/4 x 1-1/4 inches) to secure the half rotors and rotor blades together.
-
Connect wire to spark plug for gas-powered machines or install battery pack and electric-start button for battery-powered machines.
FAQ
-
Q: How often should I inspect the rotor blades?
A: It is recommended to inspect the rotor blades before each season for wear. Refer to the machine Operator’s Manual for proper inspection procedure. -
Q: What should I do if I receive a kit with missing parts?
A: If any parts are missing from your kit, please contact customer support for assistance in obtaining themissing parts.
Long Life Rotor Blade Kit
20in or 21in Single-Stage Snowthrower
Model No. 161-3934
Installation Instructions
Before each season, inspect the rotor blades for wear. Refer to the machine
Operator’s Manual for the proper inspection procedure.
Note: To make installing the kit easier, replace one rotor blade at a
time.
Installation
Loose Parts
Use the chart below to verify that all parts have been shipped.
| Procedure | Description | Qty. | Use |
|---|---|---|---|
| 1 | No parts required | – | Prepare the machine. |
| Spacer – 66-8010 | 4 | ||
| Rotor blade – 161-2172 | 2 | ||
| 2 | Locknut – 3296-56 |
Countersunk bolt – 125-1122
| 13
8
| Installing the new rotor blades.
| Bolt (1/4 x 7/8 inch) – 321-5| 4|
| Bolt (1/4 x 1-1/4 inches) – 321-8| 1|
Preparing the Machine
No Parts Required
Procedure
Note: Use Figure 2 as a reference for removing the old rotor blades, as
the existing parts are similar to the new parts.
-
Prepare the machine: for gas-powered machines, shut off the engine, wait for all moving parts to stop, and disconnect the wire from the spark plug.
For battery-powered machines, release the bail, wait for all moving parts to stop, and remove the electric-start button and battery pack from the machine. -
Remove 1 existing rotor blade:
- Remove the 4 locknuts and 4 countersunk bolts securing each side of the rotor blade to the rotor assembly.
- Remove the 2 bolts (1/4 x 7/8 inch) and 2 locknuts securing the rotor blade to the half rotors.
- Loosen (but do not remove) the center bolt (1/4 x 1-1/4 inches) and the final locknut that secures the rotor blade to the half rotors.
- Remove the rotor blade.
Installing the New Rotor Blades
Parts needed for this procedure:
| 4 | Spacer – 66-8010 |
|---|---|
| 2 | Rotor blade – 161-2172 |
| 13 | Locknut – 3296-56 |
| 8 | Countersunk bolt – 125-1122 |
| 4 | Bolt (1/4 x 7/8 inch) – 321-5 |
| 1 | Bolt (1/4 x 1-1/4 inches) – 321-8 |
Procedure
Note: Use Figure 2 as a reference for installing the new rotor blades.
-
Insert 2 spacers into each new rotor blade.
-
Take 1 blade and secure it to the empty space in the half rotors using 2 locknuts and 2 bolts (1/4 x 7/8 inch).
Note : Install the rotor blade with the thick rubber layer on the inside of the curve.
-
Secure the sides of the rotor blade to the rotor assembly using 4 countersunk bolts and 4 locknuts.
-
Remove the other existing rotor blade using step 2 in 1 Preparing the Machine (page 2).
-
Repeat steps 2 through 3 for the remaining new rotor blade.
-
Tighten the center bolt (1/4 x 1-1/4 inches) to secure the half rotors and rotor blades together.
-
For gas-powered machines, connect the wire to the spark plug. For battery-powered machines, install the battery pack and the electric-start button.
-
Spacer
-
Bolt (1/4 x 1-1/4 inches)
-
Rotor blade
-
Countersunk bolt
-
Bolt (1/4 x 7/8 inch)
-
Locknut
-
Half rotors
-
Rotor assembly
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