How to change or replace mower spindle on a Cub Cadet XT1 lawn mower

Description

A diy, step by step video demonstration on how to replace a mower spindle on a Cub Cadet XT1 lawn mower.


Transcript

In this video we will try to change the spindle assembly in a Cub Cadet XT1 lawnmower with a 46 inch deck.

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For safety the deck drive belt was disconnected from the engine pulley while loosening the fastener at the bottom of the spindle the blade was held by a piece of wood.

With the fastener removed the blade is set free to also be removed.

At the top of the deck the fasteners were removed from the belt cover.

The belt was then removed from the top of the spindle.

At the bottom of the deck four fasteners that mount the spindle to the deck were removed.

The deck was then set to the lowest position.

The lowest deck position allowed the damaged spindle assembly to be removed.

With the blades removed we can compare the old parts with the new parts.

As seen the old blade is damaged at the star-shaped  mounting point.

Aside from the damage mentioned the old blades had normal wear with a few nicks at the  cutting edge.

The spindle shaft on the old spindle is also damaged at the star-shaped mounting point.

This was caused by an impact with a root.

Although not recorded the older spindle shaft  had movement up and down in the spindle housing.

The new bolt was the same thread size as the old bolt with a longer thread length and a larger head size.

The lowest deck position allowed the new  spindle assembly to be positioned into place.

The deck was then set to the highest position.

The spindle assembly bolts were then started by hand.

A socket was then used to further tighten the bolts.

The spindle assembly bolts were then finished  with a torque wrench.

Without proper documentation a reference chart was used to select a torque that would be consistent for all four fasteners.

The thread size for these bolts are 5/16-24 with  torque ranging anywhere from 12 to 30 foot-pounds depending on the hardware grade.

The main concerns are to use a torque wrench for consistency but not to over torque the bolts.

The proper installation of the new blade on the new spindle started with hand tightening the fastener.

Once the fastener is close to the star mounting point on the spindle ensure that the blade is aligned properly while tightening the blade by hand.

With the hand tightening stopped a socket with a wood block was used to tighten further.

The fastener is then torqued to specification using a torque wrench to finish the attachment of the blade.

The deck drive belt was then attached to the pulley on the spindle assembly.

The belt cover was then positioned into place and the fasteners hand tightened.

A socket was then used to further tighten the fasteners on the belt cover.

The deck drive belt was then reattached to the engine pulley  completing the re-installation of the new spindle assembly.

Every spindle change should include a check of the spindle part number.

In this video:
918-06977a Spindle Assembly Replacement 46" Deck (Stamped)
MTD 942-04290-X Replacement Extreme Blade

Standard Blade Replacement:
MaxPower 561544B 2-Blade Set for 46 Inch

Cub Cadet #XT1 46" Deck (Stamped) Part Numbers:
918-06977 Spindle Assembly
942-04244A Blade Standard
942-04290-X Blade Extreme (Mulching)


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Disclaimer:

This video is for demonstration and entertainment purposes only. All viewers must take responsibility for their own choices and actions. The creators of this video and anyone recorded in the video are not responsible and do not assume any responsibility for all purchases, damage, injury, death or dismemberment resulting from the performance of any operation in this video. Use the proper parts, specifications and safety procedures for your own application.

11/05/2020 | How to change or replace mower spindle on a Cub Cadet XT1 lawn mower