View Full Version : Belt slipping?[Walker]

08-04-2010, 11:00 AM
I replaced all of the belts a few months ago and in the past couple of months the forward momentum will slow dramatically going up any type of incline. A high pitched "squeak" soon follows. This is at any speed and rpm range also. I can pull the handles back and it will grab, then pull the rest of the way. Nothing big or steep. Reverse is better, although I have experienced it and if I do not back off per say, it will not move.
Could this be the belt or possibly the pulley? Thanks guys

08-04-2010, 11:31 AM
how about the spring for the tensioner pulley... your belt could be glazed, you could have some oil on the pulley...

have you changed the hydro fluid recently? are the hydro release valves snugged up...

the squeal could be a belt slipping...

08-04-2010, 11:34 AM
All fluids were changed when the belts were. Ill check the tensioner next, but everything feels tight

Thank you for the reply

08-04-2010, 11:46 AM
Did you check your hydro pulleys? Check to see that the belt is not glazed which indicates slipping. Check that the hydro belt is not sitting below the idler,hydro pulley and jack shaft pulley which would indicate worn pulleys. Check the spring for the idler pulley for weakness.


08-04-2010, 11:56 AM
Getting it all guys, keep anything else coming and thank you for the info

08-06-2010, 09:47 PM
Check the ilder arms and springs. The DU bearings in the iler arms that mount to the jack shaft will go bad. The ilder arms stick and the belt slips. To test for this remove the belt from the engine to the jackshaft and the belt from the jack shaft to the pumps. With the belt removed and the springs in place check the movement of the ilder arms. If you do not get full traval or there is a bad spot the bearing will need to be replaced.

08-11-2010, 09:04 AM
A simple way to see if your belt is slipping is as follows: go to your local auto parts store and buy a can of spray belt conditioner. Spray the belt you feel is slipping. The belt conditioner usually makes the belt "sticky" and will resolve any slipping issues. It is not a permanent solution, however you will be able to diagnose the problem.

08-15-2010, 01:50 AM
7.3, being your suggestion was the simplest, I did it today. Booyow! Pulls like a train now with no slipping/squeaking.
This tells me its either the belt or the pulley, however the belt was replaced at the beginning of the season.
EricG, the spring on the idler pulley seems snug, but I,m not sure how tight it should be overall.
Fixer67, your suggestion is my next step. I would make the assumption it is the pulley.

Thanks for all the advice/input

08-15-2010, 08:14 AM
Fiveohpoepoe, when the belt is sitting in the pulley check to see if it is sitting level with the edge of the pulley or below the edge of the pulley. If it is sitting level or below the edge of the the pulley, the pulley is worn. A belt should normally sit a little higher than the pulley edge. In addition, an old belt that is worn and not replaced when required will cause wear to the pulley making a new belt hard to grip, that is why the belt dressing worked with the new belt. This is really a temporary fix and many times the belt dressing attracts dirt which is bad for a belt. As for the spring on the idler pulley, its cheap enough, I would change it and know that you are starting off on the right foot.


08-17-2010, 10:14 PM
I took a few pics of the set up with hopes of more insight. The belt dressing works great[08-15] however today I fired it up and samething over again. I sprayed a little more and pulled like a tank again. So this is the scenario. New belts. Its sits pretty much flush on the lower pulley, sits well into the idler and front.[Sorry, dont know the official name without looking at the diagram] I appreciate all of the feedback!
http://a.imageshack.us/img248/8859/walkerbelts006.th.jpg (http://img248.imageshack.us/i/walkerbelts006.jpg/)
http://a.imageshack.us/img525/1247/walkerbelts005.th.jpg (http://img525.imageshack.us/i/walkerbelts005.jpg/)
http://a.imageshack.us/img713/9309/walkerbelts004.th.jpg (http://img713.imageshack.us/i/walkerbelts004.jpg/)
http://a.imageshack.us/img811/2187/walkerbelts003.th.jpg (http://img811.imageshack.us/i/walkerbelts003.jpg/)
http://a.imageshack.us/img204/3714/walkerbelts002.th.jpg (http://img204.imageshack.us/i/walkerbelts002.jpg/)
http://a.imageshack.us/img13/4091/walkerbelts001.th.jpg (http://img13.imageshack.us/i/walkerbelts001.jpg/)

08-17-2010, 10:46 PM
OK, I am a Walker Service Tech if that helps any. First take the belts off the two pullies that are on the spring loaded arms. Now push one of the arms down all the way and let it up slowly. Does it move OK? When it stops try pulling on it to see if it will move more. The do the other arm. The arm should move without stopping and should not move after it stops. The DU bearings in the arm will go bad and cause the arms to stick and the belt will slip.

Now if that passes it is time to check the belts and pullies. Take a belt and bend it back and stick the belt in to the V on the pulley. Does the belt touch the bottom of the pulley? It it does the belt needs to be replaced. If it still touches the bottom of the V with a new belt the pulley needs to be replaced.

08-17-2010, 10:50 PM
Yes, of course that helps. The belts were replaced in April. Sent you a pm

08-18-2010, 07:12 AM
fiveohpoepoe, Fixer is the expert on Walkers. Listen to what he suggests. As for your pictures, I still think the pulleys could be the culprit. How do the belts sit in the pulleys on the jack shaft? Are your jack shaft bearings good? If the jack shaft was worn, it could cause resistance. You already proved that with belt dressing, it corrected the problem so either the belt or pulleys could still be the cause.


08-18-2010, 08:29 AM
Without a doubt I am listening to him. I get a little confused on the terminology and he has offered to speak with me and make sure Im clear. Ill be calling him today

08-18-2010, 09:27 AM
Dave is a great guy and he is such an asset to this forum. He has helped me many times and his knowledge of Walkers is unbelievable.


08-19-2010, 07:57 PM
Fiveohpoepoe, any updates on the belt slipping issue?


08-19-2010, 09:49 PM
I talked to fixer and he went over numerous trouble shooting things to try. I have done a couple and found what he said is most likely the main issue. The pulley on the idler arm[ I cant remember the actual name] is just how David described it should NOT be. Shiny in the valley and obviously the "V" is riding at the lowest point. My intention is to replace that pulley first and see what happens. The spring is good to go. Might go ahead and do the bearings for good measure.
Now, can the belt slippage cause a loss of power/bogging/lower rpms when its under load?

08-19-2010, 10:58 PM
A worn pulley and slipping belt could cause a loss of power as the hydros are not performing at their peak. Please post once you have replaced the pulley.


08-19-2010, 11:03 PM
Will do Eric. Thanks for the help

08-22-2010, 09:39 PM
Update. Pretty much narrowed down the main issue with the slippage and loss of power. Ive sent Fixer some video and he has walked me step by step how to check/fix the issues that still come up[Ill probably restore the whole mower @ this rate..lol]
I am going to have to replace the motor pulley and give the carb a good cleaning. Ill update as I can get stuff done

08-29-2010, 11:42 PM
Update. Next purchase is the pulley upgrade kit. Being the motor has to be pulled, I will probably wait until the end of this season.
I also found/bought a used hopper. Fixer has walked me through every step of how to diagnose issues with the horn on my current hopper and what needs to be done for basically every issue I have had.
A BIG thank you to Fixer67 for his willingness to help. He is without a doubt a huge asset to this site!

08-30-2010, 07:30 AM
the warning horn will fail in short order... Unless the have some some major work it seams the older ones, at least the ones I had, the fill alarm would not last more than one season..

08-30-2010, 08:39 AM
The horn did not work when I got this one, so I,m "trying" to track down the problem. With the recommendations Fixer gave, I,ll determine if its bad or simply bad wiring.

08-30-2010, 08:45 AM
I would think any peizo style buzzer from radio shack would work in its place..Juts has to be loud

the wires in side my walker hopper are cut so I know that my buzzer or the rotating chute doesn't work...:)

never did get the engine back in... busy weekend..

stan the man
08-30-2010, 09:15 AM
my walker is 2 years old got it new and it is doing the same thing. it is in the once a month and they have put on new belts and pulleys. my old walker is 4 years old runs great not problem.walker dealer ships are happy to take my money but still having the same problem not happy. thinking about dumping this walker and getting exmark

08-30-2010, 09:16 AM
Thats actually what fixer said to get, one from Radio Shack. Im checking it this week

08-30-2010, 09:17 AM
If you are having to get new belts and pulleys once a month there is definitely something wrong.

09-02-2010, 11:32 AM
If your belt is slipping and shredding then your motor and the pullies are not lined up correctly. There are bolts at the bottom of the motor that you need to get loose and adjust the motor a bit. It doesnt take much to be off in order to go through some belts. Take it to a dealer and they will do it for you, but it is easy, I buy 1 new walker a year and some have this issue and others do not. Adjusting the motor is cheaper than buying a different machine.

stan the man
09-02-2010, 12:22 PM
monday i went to mow my 1st lawn and 25 min in the lawn. the belts broke back to the dealer with it they said 2 to 3 day it will be done. they will call went it done. i got piss and they told to get out of the shop. i left the shop to get old walker that is 4 year old great machine no problem with it. i pass a dealer ship at sold exmark navigator. i was talking to the salesman what was going on my walker and the dealer ship. well i after talking about exmark navigator i pull out my check book and now i got exmark. walker dealer ship call me Wednesday and my walker was done and Wednesday afternoon got done mowing went to walker dealer to pick up the mower with the exmark on my trailer and i blow there minds. now went i leave my house i take 2 mower with me. now i have three mowers i do like the exmark. i don't know what i will do with 2 year old walker. i know i will have to use it and see if it right. be great if it is for fall clean ups running 3 machines doing clean up be great

09-06-2010, 12:49 AM
Yeesh. Thats all I know to say