justwannafarm
New member
Looking for some advice here. I have a 5325 w/ Frontier SB1174 snowblower. Yesterday I engaged the PTO after disengaging and broke the shear bolt in the pto shaft where it meets the implement. I replaced it with a zinc one since the grade 2 I had were too short. Guessing the zinc was a grade 5? Today I engaged it once at idle, then brought up to 540 and it was fine for about 5 minutes, disengaged and went to re-engage and snapped the bolt again. both times I was at idle so I don't understand why I keep breaking bolts. The only difference now versus earlier in the season when I used it is that it's extremely cold out so everything is moving much slower (even spinning the auger by hand is harder but it's not binding up on anything)
Do I use grade 2 bolts or go with something higher? I've heard guys using grade 8 but that worries me. I don't want to cause any damage to the shaft or gearbox and would rather keep replacing cheap bolts and keep the blower running the entire time rather than engaging and disengaging.
Thanks
Do I use grade 2 bolts or go with something higher? I've heard guys using grade 8 but that worries me. I don't want to cause any damage to the shaft or gearbox and would rather keep replacing cheap bolts and keep the blower running the entire time rather than engaging and disengaging.
Thanks