Help identify a missing bolt on a Raptor SD 54

[JPR]

After breaking a drive belt, we went to figure out how to replace the belt. We noticed this bolt missing from the bracket next to the clutch. I tried making sense of the the part drawings, but I can't find this bolt or even what that bracket is called. I'm guessing when this bolt fell out (we can't find it), it broke the belt. I figure if there are supposed to be 2, then I better put one back in... although it seems to be driving fine without it.

 

[EngineMan]

The missing bolt should be the same has the one that's still on there....! take that one out and find and a replacement.

 

[JPR]

I was hoping to just order the exact part number from Hustler. I don't like to guess on metal strength and things like that. If needed though, I will end up doing as you suggest. Taking out the other one and see if the hardware store can match it up. -Thanks

 

[Boudreaux In Eunice La.]

JPR if you have a Tractor Supply in your area or Road King then go there they have grade 5 and grade 8 bolts... I would imagine that the bolt that came with it is grade 5...........

 

[JPR]

Good advice from both you guys. I appreciate it!

 

[bradmc]

The parts manual only shows there being one bolt used even though there are two holes. But it sure looks like you had a second one in there based on the wear marks.

Either way, the manual says that's a 3/8 x 1 inch grade 5 bolt.

 

[Kremeneon]

That bracket is called the clutch anchor. My SD54 has two bolts in there, one goes to a nut on top of the plate, the other goes into the engine block. I don't recall if they are the same or not.

 

[mhavanti]

The bolt head in the photo is a grade five. Sold thousands and thousands of pounds of bolts back in the day. Whenever you have an opportunity, replace a five with an eight and remember you can over torque the receiving threads in the block very easily with both a five and an eight. Proceed with caution when tightening into aluminum.

Also, when placing a steel part into an aluminum part, use anti-seize on the threads. Usually a 3/8 - 16 thread bolt would be 35 Ft # torque. Going into the block, I would consider pulling it back to 30 ft. # with anti-seize on the threads of the bolt before screwing it in.

If it the missing bolt is going into a steel nut, give it 35 ft # with blue locktite is a good idea.

Good luck,

Max