Using the wrong bolt can result in lost production time, costly maintenance time or expensive equipment damage. Look for the Xtendor® logo to ensure you are using the highest quality fastener on the market today. Don’t take a chance on using the wrong bolt when assembling your plow blade and scarifier blade systems.
Here are a few tips to ensure you use the right bolts the right way for your job.
- Always use Grade 8 Xtendor® plow Bolts.
- They are hardened and will not stretch when torqued.
- Number 3 head plow bolts (with self-locking nuts) will greatly reduce the likelihood of blade chatter and bolt failure.
- Bolts torque should be 220 ft./lbs. (Torque spec for 5/8″ Grade 8 bolt.)
- Over-torque will cause heads to pop off.
- Under-torque will let the blades move during use, causing the blades to shear the bolts.
- Calibrate impact wrench periodically with a torque wrench to 220 ft./lbs.
- use Grade 8 Xtendor®
- They are hardened and will not “mushroom” or flatten in use.
- lock nuts are preferred because they lock to the bolt and are always Grade 8.
- Standard nuts, if used should be Grade 8.
- We recommend you double nut when not using a lock washer.
DON’T USE LOCK WASHERS:
- lock washers gouge the backside of the snow plow moldboard because the washer is harder than the moldboard.
- Hardened lock washers act as a cutting tool, causing unwanted “metal shards” on the moldboard where the nut is to seat.
- No matter how hard you tighten the nut, these metal shards will flatten under use, causing the nut to loosen on the bolt and eventually shear the bolt under use.
- Use a hardened lock nut to alleviate this condition.
- If using standard Grade 8 nut, double nut.
Remember, Xtendor® Brand 5/8″ Grade 8 Plow Bolts with matching nuts and washers stand tough against the harshest working conditions. Call Winter® today and one of our representatives will get you the tools you need.