Bervac 48" Snow Blower

[Ken Pike]

I recently bought an older model Bervac 48" snow blower I use on the 3 point hitch on my 1980 B7100. It works great at 800RPM (3 blade fan vs 4 blade), but when servicing gear box I noticed the auger shafts have no grease fittings & the auger shafts are rusted solid to the inner shafts from the gear box. I drilled, tapped & installed grease fittings but none of them will take grease. Thought about removing shear bolts (already drilled out old ones & installed new greased ones) & backing into a hard snow bank to see if they will break free. Only other option seems to be a pile of heat applied & hope it doesn't cook the seals in the gear box. Anybody had this problem?

 

[JohninCT]

I'd try spraying penetrating oil in the shear bolt holes and grease fitting holes and let it soak. Instead of backing into a snow bank and using engine power to break it free, I'd try a more controlled, manual break free first. Take the blower off, take the shear bolts out. Try to hold the auger(s) stationary with a block of wood between it and the ground or a "C" clamp. Then put a pipe wrench on the drive shaft hub at the gear box and try to break it free.

 

[Ken Pike]

Tried penetrating oil in shear bolt holes & grease fitting holes (4 on each shaft), no luck. Tried pipe wrench with PTO engaged, tractor in gear, Lo range, no luck.