TW-15 - Alternator Belt Replacement

REYESMR808

New User
Hello,

Have a TW-15 4WD, UC515M Serial # C750232, so I believe it is a 1985 model. I just came to own this, so I am not very familiar of what 'normal' is for it, and very little images to share of what before looked like.

Found a broken belt that seemed to go to the alternator and the water pump down to the main crank. I am trying to figure out which belt I need to buy and learn if the belt for the alternator also goes around the water pump pulley, or are the belts in a different configuration.

Currently, have two belts still installed, but when looking at the various pulleys that are available, I see that the hydraulic pump has an inner grove (2 total) that a belt could also go on, with the outer groove of the hydraulic pump going down to the main crankshaft.

Does a TW-15 a 3 belts or 4 and what would be the configuration be for them (i.e., Does the alternator belt also run through the water pump pulley, or does the water pump have a separate belt that goes to the inner track of the hydraulic pump?)?

Thanks in advance for any help!
 
Forgot to add some images



Also, yes I know I have coolant everywhere, the radiator
overheated when the belt(s) broke I found one belt, but I dont
know if there were on or two belts to begin with.

cvphoto142856.jpg




cvphoto142857.jpg




cvphoto142858.jpg
 
What's this hydraulic pump you refer to? The pulley on the bottom with the 3 grooves is the crank pulley.

The inner belt is fan only (adjusted with the idler pulley), the middle belt is alt and water pump, and the front belt is the AC compressor. My pic does not show an AC compressor belt.

So, your tractor came from the factory with 3 belts total. It SHOULD have been designed for 4. That single belt for the fan is not enough.
cvphoto142863.jpg
 
Your missing the water pump and alternator belt. Id replace both of the back 2 belts personally.

Also maybe it's just the picture but the nut on the alternator pulley doesn't look tight.
 
I have a 87 TW-5, 3 belts. From the crank pulley:
Inner belt to idler on front of injector pump then fan.
Middle to alternator then water pump.
Front is A/C
 

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