Question about Craftsman 21 hp 42 in. Deck Yard Tractor - CA Model

Open Question

My tractor started jerking today while mowing in any forward gear model 917.28921 six speed transaxle.

Posted by on


6 Suggested Answers

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

  • 6 Answers

SOURCE: Craftsman Transmission problem

Some of these tractors have a friction wheel that is driven off of a flat wheel on the bottom of the engine drive shaft. The rubber ring on this friction wheel could be worn out, or it could be out of adjustment.

Posted on Apr 22, 2009

  • 130 Answers

SOURCE: change the v-best on a craftsman 42' mower 6 speed transaxle lawn

if your going to do this get a book its not going to be you need a book i say take to shop.let me know

Posted on Jul 22, 2009

  • 95 Answers

SOURCE: I have a 20 hp craftsman lawn( hydro gear

It sounds like the oil in transaxle is degraded.The transaxle is supposed to be a sealed unit requiring no service but over time the oil will get dirty enough to cause problems like you are describing.Remove the back hitch plate and look at the transaxle it will have a rubber vent hose or a 1/4 alllen wrench fitting on top. You will need to purchase a battery suction bulb from sears automotive and use it to remove as much oil from transaxle as possible. Warm the transaxle up first by running it around,then suction the oil out.Refill with a good synthetic motor oil 15w-50 or 20w-50 like Amsoil or Mobil 1.Do not use transmission fluid or hydraulic fluid. When adding the new oil back fill it to within 1.5 in from the top,be sure to allow this amount of air space in top of transaxle for expansion.

Posted on Jul 31, 2009

  • 41 Answers

SOURCE: Was mowing when it just stopped going forward. It

Under the mower below the seat of the rider, at the rear of the tractor, look up and you will find the transmission there. There is a belt that runs on the pulley under there, and this belt can slip off when it gets worn or stretched. Sort of a tough spot to get to but, that is most probably cause.

Let me know,

Posted on Apr 11, 2010

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Craftsman Garden Tractor 26 HP 6 speed transaxle First mow of the season. mowed 15 ft. pressed in clutch to look behind at how it was mowing let clutch out to go no forward movement. belt seams good.

Make sure the transaxle disengagement lever is not in the neutral position. On most lawn tractors, this lever is a stiff wire -- sometimes with a loop on the end -- that sticks out of a slot above and to the right of the trailer hitch bracket on the rear panel, below the seat. Most tractors move under their own power when the wire is all the way in, and can be rolled around without the engine running when the wire is pulled out.

Apr 10, 2018 | Craftsman Garden

1 Answer


The tractor has a variable speed pulley for the 1-6 gears. You will want to check the top pulley on the shaft that is in the center of your tractor between the engine and transaxle. you may have broke the spring or adjuster.

Apr 24, 2011 | Yard Machines MTD Gold 185 HP Lawn Tractor...

1 Answer

While mowing it started 'jerking' going forward (John Deere RX75)

if this is a MTD rider, (troybilt, yard man, yardmachine,. bolens, cub, etc) the transmission is likely a single gear forward and reverse with a variable speed pulley mechanism with two transmission belts, these trans are prone to failures of the gear clutch which is a dog style clutch with some small teeth that engage the gear plates, these teeth can wear off on one side resulting in the popping or chattering while retaining full functionality for the other direction, this is the gear set inside the transaxle and is usually an indicator of significant wear inside the axle housing itself, usually entire transaxle replacement is the most common and effective repair solution.

Jun 04, 2010 | Garden

1 Answer

Lawn tractor forward movement problem

Check the adjustment from the lever to the transaxle, if the linkage is ok the transaxle may be suffering from age and has leaking internal seals.

Jun 03, 2010 | Craftsman 17.5 hp 42 in. Deck Lawn Tractor...

1 Answer

The mower wont engage in gear

@the rear of the tractor bottom left you'll see a metalrod sticking out and if it hasn't come off a decal with a picture of man pushing tractor that's it.

Apr 12, 2010 | Craftsman 20 hp 42 in. Deck Lawn Tractor -...

1 Answer

Transaxle locked in gear won't roll freely in neutral

Sounds like the pins in your brake caliper have gotten dirty and/or rusty and are not releasing all the way. When I had my shop, we found a lot of these and I or my mechanics pulled and cleaned them then took a drill 1/64th larger than the pin and ran it through the holes in the caliper, NO MORE PROBLEMS!
Check your tire pressures, too, if they are low it will be difficult to roll.

Sep 14, 2009 | Garden

1 Answer

Tractor will not go in forward gear, only reverse.

Try rocking the mower forward and backward while you try to shift it.

Aug 19, 2009 | Craftsman 20 hp 42 in. Deck Lawn Tractor -...

1 Answer

The transaxle on my LT1000 is about to stop pulling. It started with reverse and now the forward speed is jerking until eventually it stops pulling at high speeds. It has a hydostatic transaxle, which is...

the wording says non serviceable
that indicates no parts available, cannot get into it to fix anything
talk with a service shop and consider a hydrostatic from another brand that is serviceable

Jan 23, 2018 | Craftsman 21 hp 42 in. Deck Yard Tractor -...

2 Answers

Will not go into gear

a hydro uses a foot pedal on the right side , you push forward to go forward or rock the pedal rearward to go in reverse - a regular transmission has a shifter usually between your legs for reverse 1st 2nd or 3rd gear - you also said the blades wont engage . are they electric ( with a switch ) or do you manually move a lever .

Oct 23, 2008 | Craftsman 17.5 hp 42 in. Deck Lawn Tractor...

Not finding what you are looking for?
Craftsman 21 hp 42 in. Deck Yard Tractor - CA Model Logo

Related Topics:

90 people viewed this question

Ask a Question

Usually answered in minutes!

Top Craftsman Garden Experts

Wade Mobley
Wade Mobley

Level 3 Expert

513 Answers

Jim Parker
Jim Parker

Level 3 Expert

1041 Answers

Dennis Key
Dennis Key

Level 3 Expert

2478 Answers

Are you a Craftsman Garden Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides