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Mantis Tiller Tine Drive Shaft Replacement #431

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This video provides step-by-step repair instructions for replacing the tine drive shaft on a Mantis tiller. The most common reason for replacing the tine drive shaft is when making repairs to the engine.

All of the information for this tine drive shaft replacement video is applicable to the following brands:
Mantis

Tools needed: adjustable wrench, Phillips-head screwdriver, hammer, flat-head screwdriver

Step By Step Instructions

1
Before you replace the tine drive shaft on your tiller make sure the engine has cooled and the on-off switch is in the “off” position.
2
We recommend performing this procedure with little or no fuel in the tank.
3
Now tip the tiller forward so it rests on the fuel tank and tine guard.
4
Note the orientation of the tines then remove the retaining pins and pull off both tine assemblies.
5
Next, use an adjustable wrench to rotate the old tine drive shaft counter-clockwise to unthread it.
6
You can use a hammer to help fully remove the shaft.
7
Install the new tine drive shaft by threading it clockwise into the left side of the transmission housing.
8
Align the worm gear bearing on the shaft and fully seat it in the housing.
9
The bearing should be recessed approximately a quarter-inch.
10
Replace the seal.
11
Align the retainer and fully seat it.
12
To confirm that there is sufficient grease in the transmission housing; use a phillips-head screwdriver to unthread the screws securing the cover then pull it off.
13
Add additional grease if necessary.
14
Confirm that the gasket is in place then realign the cover and secure it with the screws.
15
Properly align each tine assembly on the new tine drive shaft and secure them with the retaining pins.
16
With the repair completed return the tiller to its upright position.
Description
This video provides step-by-step repair instructions for replacing the tine drive shaft on a Mantis tiller. The most common reason for replacing the tine drive shaft is when making repairs to the engine.

All of the information for this tine drive shaft replacement video is applicable to the following brands:
Mantis

Tools needed: adjustable wrench, Phillips-head screwdriver, hammer, flat-head screwdriver
Step-By-Step Instructions
1
Before you replace the tine drive shaft on your tiller make sure the engine has cooled and the on-off switch is in the “off” position.
2
We recommend performing this procedure with little or no fuel in the tank.
3
Now tip the tiller forward so it rests on the fuel tank and tine guard.
4
Note the orientation of the tines then remove the retaining pins and pull off both tine assemblies.
5
Next, use an adjustable wrench to rotate the old tine drive shaft counter-clockwise to unthread it.
6
You can use a hammer to help fully remove the shaft.
7
Install the new tine drive shaft by threading it clockwise into the left side of the transmission housing.
8
Align the worm gear bearing on the shaft and fully seat it in the housing.
9
The bearing should be recessed approximately a quarter-inch.
10
Replace the seal.
11
Align the retainer and fully seat it.
12
To confirm that there is sufficient grease in the transmission housing; use a phillips-head screwdriver to unthread the screws securing the cover then pull it off.
13
Add additional grease if necessary.
14
Confirm that the gasket is in place then realign the cover and secure it with the screws.
15
Properly align each tine assembly on the new tine drive shaft and secure them with the retaining pins.
16
With the repair completed return the tiller to its upright position.

Applicable Product Model

Parts Needed
Recommended Tools and Accessories
Seal
Seal
$2.48
Bearing
Bearing
$6.75
Grease
Grease
$10.59
Total$0.00

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