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#1
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Help with deck speeds
Does anyone know if there is another center deck pully for the later model 44" mowing decks? I have a 108 with a 44" deck, and the blade speed seems slow compared to other deck mowers. It is very quiet running, but in normal grass it only seems to throw the cut grass about a foot from deck opening. I have an old MTD, WITH CAST IRON REAR END, AND A GEAR DRIVEN DECK, and it throws the grass six feet out the end of the deck, and the blades are whirrring when engaged. I love this old 108, just looking to improve on the cutting operation. Any help would be appreciated, thanks.
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#2
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Yes they do make a smaller speed up pulley, before you go that route are you sure that the engine is running up to speed?
Here is some information that I have on pulleys. It's been a long time since I messed with them and I do not remember where I got this information. Check before you buy something. Small drive pulley (44" and 50" decks) is as follows IH 126393-C1 44A decks with serial number 81742 and above. (Small pulley) all other decks (44, 50, 50A) list IH 59703-C3(some list C-2 as well) as correct. Including a note about 44" decks below serial # 81741. (large pulley) NOTE: These numbers are only good for YELLOW tractors. The 5/8" belt on the 82 series requires a different pulley. |
#3
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Deck speeds
Thanks for your info. I'll have to figure out which pully I have, and go from there. Motor is pulling full RPM . Could clutch size be different? I HAVE A CLUTCH OFF OF A 107, that seems smaller than the stock 108. Thanks for the help.
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#4
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All the mechanical PTO clutches are the same diameter.
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#5
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If you indeed have the smaller deck pulley, check to see if the belts and/or PTO clutch are slipping, run for a few seconds on an otherwise cool tractor in tall grass, shut off and immediately note the temperatures. Don't burn your hands!
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