Fan belt replacement on 202 Massey Ferguson

Anonymous-0 · Mar 9, 2012

I can not get the front hydraulic pump to come out shaft and all ! I have removed the bolts out of the pump flange on the crank shaft pully but the shaft and the pump will not come free to remove the shaft in order to replace the belt , Does anyone have any suggestions ?????

chuck41 · Mar 9, 2012

Hi, The shaft most commonly is turned into the
hub with a LH thread. There is a tool for this. I
have a homemade one. If you have an MF dealer he
can help you. The shaft will be very stuck to the
hub so start to soak it with something then with
a tool or other invention you can put an impact
wrench and turn it out backwards. I have heard
some say to use a "sectional belt" Chuck

Anonymous-0 · Mar 9, 2012

How do you get the pump off the shaft to do that ?

supergrumpy · Mar 9, 2012

save yourself lots of aggravation

h/f sells sectional belts for $24, remove the excess links and reconnect the belt after you fish it thru around the pulleys

MMC sells better grade of link type belt but the cheepo h/f one has lasted me a long time

to_many_irons · Mar 9, 2012

i have un bolted the front pump then the flange ,shoved the belt between the pully and flange .
or left the flange bolted to the pully .
removed the pump .
took a bolt and cut off the threads .
then took a small grinding disc and made a key way .
found piece of key stock .
put the bolt and key way in shaft .
used impact gun to back out .
LEFT HANDED THREAD IN THERE . GO ANTIE CLOCK WISE !!!!!!!!!!
some of them had a spline in the flange .
good luck keep use posted please .

chuck41 · Mar 9, 2012

Nothing holds it on. If the splines are worn a bit it may help hold it up-otherwise some rust
tap and soak is usual way. Chuck

jfedorchuk · Mar 10, 2012

I have a Massey 20 (I think). Have removed the 3 bolts on the flange that connects to the fan. Have removed the hydraulic pump on the front of the tractor (3 bolts).

Issue: I cannot get the flange to move forward enough to get a belt between. Only moving about 1/2 inch.

From this post it seems like the shaft that drives the hydralic pump actually removes from the flange that bolts onto the fan pulley.

Is this correct?
Thanks in advance for any assistance.

MKinOntario · Mar 10, 2012

Yes, the shaft unscrews from the drive plate. It's a left hand thread, so needs to be turned clockwise to unbolt and it probably won't be an easy thing to accomplish either. That's why the linked belts are appealing.

jfedorchuk · Mar 11, 2012

(quoted from post at 03:57:35 03/11/12) Yes, the shaft unscrews from the drive plate. It's a left hand thread, so needs to be turned clockwise to unbolt and it probably won't be an easy thing to accomplish either. That's why the linked belts are appealing.

Yes now that I have it apart, I am concerned that the shaft might break etc. Are you in Ontario, Canada (from your username) . Do you know where someone might buy these in Canada. I see I can buy these a segmented belt at Lee Valley - thinking a 1/2 segmented might work.
http://www.leevalley.com/en/wood/page.aspx?cat=1,240,41067&p=30051

...James

Ray UK · Mar 11, 2012

You could support the engine with a jack, slacken the bolts on the front axle support casting but don"t remove them completely. this will allow you to roll the front end complete with the pump forward enough to create enough room to slide the new belt past the drive flange. If you fit two belts one can then be tied back to the engine out of harms way as a spare.
Just out of interest we tried the link belting on the machine that I used to maintain and it was almost impossible to keep it tensioned as it stretched like elastic.
Ray.

Phil Tibbetts · Mar 11, 2012

I wouldn't waste my time trying to get it apart. Go to McMaster Carr and buy a piece of their segmented belt and it will last for years. It may stretch a little at first but it is easy to remove a link if you run out of adjustment. It is more expensive but the quality is far superior to the HF junk. Been using it for years on my tractors with no problems. It comes in 1/2 and 5/8 widths.

Don-Wi · Mar 12, 2012

There are lots of opinions on this as you have found out. Personally, I would figure out how it comes apart and put a solid belt back in. Our 165 has a crank driven pump on it, and it's got a left hand thread holding the shaft in the hub on the crank pulley.

The hub before that was splined. Yours could be either way, and even a spline can prove difficult to remove if it's worn and more or less locked in place until you spin the shaft a little (grab it with a pipe wrench and turn it the normal direction of engine rotation to unlock it from the hub) and then pull it out. May need to work it back & forth, and maybe even better get a slide hammer on it.

How is the pump on the front coupled to the shaft? Coupling chain? love-joy coupler? keyed coupling collar? The pump should separate from the shaft, the shaft from the hub, and the hub from the crankshaft pulley. Atleast on our 165, after getting the shaft out, you can get the belt in there no problem.

Donovan from Wisconsin

1percheron · Mar 14, 2012

Yeah I think it has a left hand thread , But I dont see how to grab it to unscrew it !

to_many_irons · Mar 15, 2012

take a bolt the same size of the shaft.
it needs to have a shoulder on it , cut the threads off .
take a small cutting wheel [ 3 inch size worked best for me]
grind a key way up the shoulder of the bolt .
put a key the size of the of drive .
insurt bolt and key and turn out .
impact gun works the best .
i can make the tool and remove faster than i could typ this in easy .

Don-Wi · Mar 15, 2012

Any way to get a pipe wrench on it?

Donovan from Wisconsin

to_many_irons · Mar 16, 2012

not any way i know of .

bubblesbacon · Jun 21, 2012

I need a tool like that, anyway you could make me one, how much would it cost?

(quoted from post at 18:05:11 03/15/12) take a bolt the same size of the shaft.
it needs to have a shoulder on it , cut the threads off .
take a small cutting wheel [ 3 inch size worked best for me]
grind a key way up the shoulder of the bolt .
put a key the size of the of drive .
insurt bolt and key and turn out .
impact gun works the best .
i can make the tool and remove faster than i could typ this in easy .

to_many_irons · Jun 21, 2012

lol .
need some info .
the brain don't recall like it did .
pump shaft size and key way size .
where would you live .
and it will not be pretty , but will be usefull .

bubblesbacon · Jun 22, 2012

it is a 3/4" shaft on hyd pump, the key is 3/16 x 3/16, so the slot in the shaft on pump would be 3/16 wide x 3/32 deep as is the keyway in the hydraulic front shaft that mounts on the front of engine crank.
I live in Eagle River, WI at 1872 Potato LN, 54521, my name is Randy Bacon...

(quoted from post at 17:27:34 06/21/12) lol .
need some info .
the brain don't recall like it did .
pump shaft size and key way size .
where would you live .
and it will not be pretty , but will be usefull .

to_many_irons · Jun 23, 2012

will see what happens this weekend with the weather .
the daily driver needs a water pump .
and two many other small jobs .
but near the top of the list .

bubblesbacon · Jun 29, 2012

hope you didn't start it yet, my brother had his buddy make me one, if you did incur any expense let me know and i will reimburse you, thanks for the offer

(quoted from post at 22:39:53 06/22/12) will see what happens this weekend with the weather .
the daily driver needs a water pump .
and two many other small jobs .
but near the top of the list .

to_many_irons · Jun 29, 2012

its made dont worry .
the bolt came from work key stock was in my tool box . the amount of time was not much .
was going to send you the one i made years ago .[ gone who nows where ]
so now i will not need one for me now .

Fan belt replacement on 202 Massey Ferguson

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