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Gravely Pro-Turn 152 Loose belt

#1

B

blacktop

I have a Gravely Pro-turn 152 and the belt spins two of the blades is very loose. What tightens the belt? I just don't readily see an easy way to tighten it. Or, do I just need a new one? It has 369 hours on it.


#2

StarTech

StarTech

Need at least the six digit model number from the serial number tag in to look up the mower.


#3

M

MParr

Generally, Gravely uses springs for belt tension and there is no adjustments. You should have a belt routing diagram on your deck and in the operators manual. Your spring could have stretched, broken or come off of the retainer. The bearing in the bracket may be shot. With the hours that you have on the unit, there will be some stretch in the belt. The model number and serial number of the mower would be helpful.


#4

Tiger Small Engine

Tiger Small Engine

MParr said:
Generally, Gravely uses springs for belt tension and there is no adjustments. You should have a belt routing diagram on your deck and in the operators manual. Your spring could have stretched, broken or come off of the retainer. The bearing in the bracket may be shot. With the hours that you have on the unit, there will be some stretch in the belt. The model number and serial number of the mower would be helpful.
Click to expand...
Belts wear on the sides and top to bottom, more than they stretch. Next time you see a worn belt that is say 1/2” wide, measure it and it will be more narrow than 1/2”. Take that difference and combine it over the length of the belt and it adds up to excessive wear.


#5

B

blacktop

Thank you all for your responses. The model number is 991080, serial number is 011261. The belt looks good. It is just loose. I can take pictures if you want. The mower has 371.0 hours on it. Thank you for your help.


#6

StarTech

StarTech

Check both idler arm bushings. They rust up and stick preventing the tension spring from keeping the belts tight.


#7

B

blacktop

I don't mind getting my hands dirty, but I don't have a clue what a idler arm bushing is or where it is. What numbers do I need to look at? Thank you!

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#8

A

Auto Doc's

This might help:

www.partstree.com

PartsTree - Home of OEM Parts for Outdoor Power Equipment

Parts lookup and repair parts diagrams for outdoor equipment like Toro mowers, Cub Cadet tractors, Husqvarna chainsaws, Echo trimmers, Briggs engines, etc.
www.partstree.com www.partstree.com


#9

StarTech

StarTech

Items 5 and 9 are the bushings. Items 9 are actually plastic sleeves. The idler arms are 14 and 34. You will need a press to remove them and then new 9s has has to be pressed in.


#10

M

MParr

StarTech said:
Items 5 and 9 are the bushings. Items 9 are actually plastic sleeves. The idler arms are 14 and 34. You will need a press to remove them and then new 9s has has to be pressed in.
Click to expand...
Spot on!


#11

B

blacktop

Thank you. I have ordered the parts online. I will let y'all know if the bushings fix the problem. Thank you again for your help.


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