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Mantis Tiller Tine Shaft Bearing Seal Replacement #434

04:33
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17
This video provides step-by-step repair instructions for replacing the tine shaft bearing seal on a Mantis tiller. The most common reasons for replacing the tine shaft seal are when it is damaged or missing.

All of the information for this tine shaft bearing seal 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 a time shaft seal 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 tine drive shaft counter-clockwise to unthread it.
6
You can use a hammer to help fully remove the drive shaft along with the left side retainer, seal and bearing.
7
If you need to replace the seal on the right side of the housing, use a phillips-head screwdriver to unthread the screws securing the cover then pull it off.
8
Lift out the worm gear.
9
Now insert the tine drive shaft in the reverse position and strike it with a hammer to knock out the retainer, seal and bearing.
10
Replace the bearing by fully seating it in the transmission housing.
11
The bearing should be recessed approximately a quarter-inch.
12
Install the new tine shaft seal by inserting it into the housing.
13
Replace the retainer and confirm that it is fully seated.
14
Now reposition the worm gear and add some additional grease if necessary.
15
Confirm that the gasket is in place then realign the cover and secure it with the screws.
16
Rethread the tine drive shaft clockwise into the left side of the transmission housing.
17
Align the left worm gear bearing on the shaft and fully seat it in the housing.
18
Replace the seal and the retainer.
19
Properly align each tine assembly on the tine drive shaft and secure them with the retaining pins.
20
With the repair completed return the tiller to its upright position.
Description
This video provides step-by-step repair instructions for replacing the tine shaft bearing seal on a Mantis tiller. The most common reasons for replacing the tine shaft seal are when it is damaged or missing.

All of the information for this tine shaft bearing seal 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 a time shaft seal 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 tine drive shaft counter-clockwise to unthread it.
6
You can use a hammer to help fully remove the drive shaft along with the left side retainer, seal and bearing.
7
If you need to replace the seal on the right side of the housing, use a phillips-head screwdriver to unthread the screws securing the cover then pull it off.
8
Lift out the worm gear.
9
Now insert the tine drive shaft in the reverse position and strike it with a hammer to knock out the retainer, seal and bearing.
10
Replace the bearing by fully seating it in the transmission housing.
11
The bearing should be recessed approximately a quarter-inch.
12
Install the new tine shaft seal by inserting it into the housing.
13
Replace the retainer and confirm that it is fully seated.
14
Now reposition the worm gear and add some additional grease if necessary.
15
Confirm that the gasket is in place then realign the cover and secure it with the screws.
16
Rethread the tine drive shaft clockwise into the left side of the transmission housing.
17
Align the left worm gear bearing on the shaft and fully seat it in the housing.
18
Replace the seal and the retainer.
19
Properly align each tine assembly on the tine drive shaft and secure them with the retaining pins.
20
With the repair completed return the tiller to its upright position.

Applicable Product Model

Parts Needed
Seal
Seal
$2.48
Total$0.00

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