Posted by ollie770 on December 15, 2013 at 18:29:22 from (166.181.80.10):
I just got a used 3 point snowblower and it needs some TLC. I want to change the oil in the gear box. If you look at the picture, there is a elbow and plug at the top (fill port). My question is about the 1/2 pipe plug on the side towards the bottom - is that the drain or the check plug? The very bottom of the gear box has nothing but the four bolts that attach it to the blower. Also is 80-90 gear oil the best the use?
Second question is the shear bolt flange that comes out of the gear box and drives the augers. Currently the hole for shear bolt is all cobbled up and sloppy. Someone has welding and tried to repair it. There is almost a 1/4 turn of slop. I am thinking easiest fix is quit using that hole and drill a new 3/8" hole on the other side of the flange?? Grade 2 or Grade 5 for the shear bolt?
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