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42 inch rider blades noise

#1

B

bassman37

I have a Craftsman model number 917.25081 which is a 19 HP Briggs & Stratton Platinum series T 2200.

When I disengage the cutting blades I hear a sound as if the blades are hitting metal or each other until they come to rest. I have checked under the deck and the bolts on both are tight.

Any idea as to what I should check or my issue may be?

Thanks in advance!


#2

tom3

tom3

Spindle bearings shot?


#3

B

bassman37

How can I test wear the spindle bearings or do I just have to replace them?

Thanks for the quick response!


#4

tom3

tom3

Reach up under the deck and try to shake the blades with the belt loose. Should not wobble and should rotate smoothly. Slim chance there's a blade brake that's loose or worn out too. but doubtful.


#5

K

keakar

i think its also very likely the brake pads that stop the blades from spinning when you disengage the blades, are worn right through to the metal backing.

its very common

to test this, with mower off, engage the blades, this releases pressure on the brake pads, then spin the blades by hand (very carefully) and see if its still making noise. inmost cases if the spindle bearing are bad enough to hear noise over sound of engine then its so loose its flopping around in the hole


#6

Cusser

Cusser

Is there accumulated gunk on the bottomside part of the deck? When you spin the blades by hand do you hear/feel noise? Yes- with engine OFF !!!


#7

B

bassman37

Reach up under the deck and try to shake the blades with the belt loose. Should not wobble and should rotate smoothly. Slim chance there's a blade brake that's loose or worn out too. but doubtful.
Thanks Tom. The blades rotate smoothly without any wobble so I guess the spindle bearings are OK.


#8

B

bassman37

i think its also very likely the brake pads that stop the blades from spinning when you disengage the blades, are worn right through to the metal backing.

its very common

to test this, with mower off, engage the blades, this releases pressure on the brake pads, then spin the blades by hand (very carefully) and see if its still making noise. inmost cases if the spindle bearing are bad enough to hear noise over sound of engine then its so loose its flopping around in the hole
Thanks Keakar. When I ran the test that you suggested I hear no noise from the blades or bearings.


#9

K

keakar

Thanks Keakar. When I ran the test that you suggested I hear no noise from the blades or bearings.
what about the spindle pulley brakes?


#10

B

bassman37

Is there accumulated gunk on the bottomside part of the deck? When you spin the blades by hand do you hear/feel noise? Yes- with engine OFF !!!
Thanks Cusser. The bottom of the deck is clean and there is no noise or strange movement when spinning the blades by hand.


#11

I

ILENGINE

When you shut the deck off is the noise a clack, clack, clack, or a metallic rrrrrrtttttttt.


#12

Fish

Fish

You appear to be missing a digit in your model number. Look at the base of the spindle and look for cracks @ where it bolts to the deck.

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#13

B

bertsmobile1

Can you rock them see saw fashion ?


#14

B

bassman37

When you shut the deck off is the noise a clack, clack, clack, or a metallic rrrrrrtttttttt.
It is metallic sound as if the blades are hitting the deck or another metal object.


#15

B

bassman37

You appear to be missing a digit in your model number. Look at the base of the spindle and look for cracks @ where it bolts to the deck.

View attachment 52288
Okay I guess it's time to drop the deck and take a very close look at it. Thanks for the idea. The model number is eight digits on the manual cover. Should I be looking elsewhere?


#16

Fish

Fish

Should be on a tag on the back, or under the seat. The tractor with the model number you gave is old, very old.


#17

B

bassman37

Should be on a tag on the back, or under the seat. The tractor with the model number you gave is old, very old.
The tractor is four years old. Attached is the cover of the manual showing the model number. Thanks.

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#18

B

bassman37

Here is the ID tag. Thanks again for your help.

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#19

Fish

Fish



#20

tom3

tom3

I'd suspect the blade brake.


#21

B

bassman37

First off, I want to apologize for the late reply but thanks to the excellent responses that I received from you folks on this forum I replaced both mandrels and that solved my problem.

I can not thank you enough as I now have a five year old machine that sounds like it did when I first bought it!

Regards,
Kevin


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