How to do an oil change on a Tuff Torq K46 transaxle - Lawn Mower Forums : Lawnmower Reviews, Repair, Pricing and Discussion Forum
Drive Train Articles Once it leaves the engine until it touches the ground, this is the place.

LinkBack Thread Tools
post #1 of 1 (permalink) Old 11-08-2012, 07:25 PM Thread Starter
Junior Member
Stladrill's Avatar
Join Date: Nov 2012
Location: Canada
Posts: 8
Thanks: 0
Thanked 2 Times in 2 Posts
Arrow How to do an oil change on a Tuff Torq K46 transaxle

Warning: While Tuff Torq do recommend changing the oil in its unit, some other tractor manufacturer provide a "sealed unit" and don’t need to replace the oil in the transaxle.

Be advised that if you’re doing the oil change it is on your own responsibility.

Here’s the procedure for changing the oil on a Tuff Torq K46 transaxle.

Note: Make sure to use appropriate jack and support when jacking the tractor.

1. Removing the transaxle form the tractor.

Raise rear wheels off the ground, support the rear of the tractor with jack stands.

You'll have to remove the drive belt by releasing the tension on the idler pulley, disconnect all the linkage, brake, forward/reverse and the freewheeling rod from the transaxle, and finally unscrew the 4 bolt holding the transaxle on the frame.

2. Remove the fan pulley combo (snap ring).

3. Removing the fill cap.

To remove the fill cap, you’ll have to use a sharp knife (box cutter) be gentle, you’ll have to reuse the cap if it’s not damage

4. Take off the magnet under the fill cap (you can see the dirt from the run-down steel)

Note: For a perfect job, you have to remove the lower casing and clean the other magnets. You’ll find two magnets near the final drive and two others near the oil inlet of the hydraulic pump parts #8 in the diagram below.

Warning: If the transaxle is still under warranty I do not recommend to open it. You’ll be voiding the warranty by doing that.

This image has been resized. Click this bar to view the full image.

Here you can see the two orifices that fill both side of the transaxle, gears side and pump side.

Gears side

Pump side

5. Draining the transaxle

To drain the transaxle, you’ll have to turn it upside down.

Note: Make sure to use an adequate size container to prevent spilling oil.

It could take few hours to completely drain the transaxle.

It is recommend by Tuff Torq to use 5W50 full synthetic oil. The transaxle requires 1.85 Liter to fill it. You'll need to buy two liters. You can use the brand of your choice.

6. Fill up the transaxle.

Take a appropriate size funnel and pour the oil slowly in. Remember the transaxle doesn’t take the full two liters, so after 1 liter and a half it could take a bit of time to fully fill it.

Note: Make sure to respect the oil fill up mark show on the next picture.

7. The bleeding procedure

Here you have two possible choices. You can bleed the transaxle on a stand using a power drill to run the pump, which gives you the opportunity to check the oil level after the bleeding procedure. Otherwise, reinstall the transaxle on the tractor by following the steps above in reverse order.

Note: If you decide to reinstall the transaxle on the tractor you’ll lose the ability to check the oil level after the bleeding procedure, but if the fill up was followed correctly you should obtain the same result.

A. Start and run engine at SLOW idle.
B. While alternately depressing the forward and reverse pedals, engage and disengage the release wheel lever (freewheeling rod).
C. Continue this procedure until the rear wheels start to rotate. This step may take up to 10 minutes to perform.
D. Lower the machine to the ground.
E. With control pedals in neutral, push the machine forward and then rearward to turn the motor rotating group.
F. Start and run the engine at FAST idle.
G. Quickly depress and release the forward and reverse pedals until the machine moves without hesitation.

Note: Tuff Torq recommend changing the oil at 50 hours for the first time and then every 200 hours.

Originally posted on November 2011.

Last edited by Brad; 11-09-2012 at 05:05 PM.
Stladrill is offline  
Sponsored Links
Closed Thread

Quick Reply

Register Now

In order to be able to post messages on the Lawn Mower Forums : Lawnmower Reviews, Repair, Pricing and Discussion Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page

  LinkBacks (?)
LinkBack to this Thread:
Posted By For Type Date
tuff torq transaxle fluid_Yaelp Search This thread Refback 03-01-2018 02:19 PM
tuff torq k46 oil change_Yaelp Search This thread Refback 08-12-2017 10:24 AM
Tuff Torq K46 Oil Capacity_Yaelp Search This thread Refback 09-24-2016 02:50 PM
Tuff Torq K46 Oil Capacity_Yaelp Search This thread Refback 06-30-2016 04:08 PM
tuff torq k46 repair guide This thread Refback 06-04-2015 05:00 PM
tuff torq k46 repair manual This thread Refback 05-11-2015 07:51 PM
How To Do An Oil Change On A Tuff Torq K46 Transaxle - This thread Refback 11-24-2014 11:16 AM
how to bleed tuff torq k46 - Web Search Results This thread Refback 04-12-2014 01:57 PM
how to bleed tuff torq k46 - Web Search Results This thread Refback 04-12-2014 01:57 PM

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome