Learn how to adjust the attack angle on a BOSS V-plow to improve scraping performance, reduce chatter, and keep cutting edges level with the pavement.
How do you adjust a snowplow attack angle?
To adjust a snowplow attack angle, first verify the push beam height is set correctly. If the plow still does not sit level, adjust the bumper stop position. Moving the bumper stop toward the center section lowers the middle of the plow, while moving it away from the center section lowers the wing tips. Proper attack angle adjustment improves scraping performance and reduces plow chatter.
Push Beam Adjustment
The height of a vehicle can vary greatly causing your BOSS V-plow to sit uneven with the ground. Check your Push Beam height first should you notice your cutting edges are uneven with the ground.
The BOSS HTX V-plow requires a PushBeam height of 14-1/2". The BOSS 7'6", 8'2", & 9'2" XT & DXT V-plows have a required Push Beam height of 15-1/2" off the ground, measured to the center of the pinhole on the Push Beam hook. For the BOSS 10' DXT V-plow, this distance should be 16".
Adjusting the Push Beam height typically solves the leveling issue, but in some cases, extra tuning is needed. Adjusting the blade attack angle can provide a better scrape when plowing and reduces chatter.
Fine-tuning the attack angle of the BOSS V-plow is done by adjusting the Bumper Stop, which is located where the Pushframe enters the back of the Center Section. There are two reasons you would need to adjust your Cutting Edge.
1. The middle of the plow is too high. It is noticeable by looking at the Snow Catcher. The Snow Catcher in this instance sits off the ground.
2. The wing tips are up and the plow is not sitting level on the ground.
Let's take a look at both instances.
Bumper Stop adjustment if the middle of the plow is not level with the ground
1. To adjust the Bumper Stop, use a floor jack to support the Coupler.
2. Loosen the four Trip Springs. Lower the jack to the floor to release tension on the Bumper Stop.
3. Move Bumper Stop forward (one hole at a time) into the Center Section to bring the middle of the plow down.
4. Tighten the Trip Springs. The plow should now be level to the ground. If not, repeat the process until it is level.
Bumper Stop adjustment if the tips of the plow are up and not level with the ground
1. To adjust the Bumper Stop, use a floor jack to support the Coupler.
2. Loosen the four Trip Springs. Lower the jack to the floor to release tension on the Bumper Stop.
3. Move Bumper Stop towards the truck- away from the Center Section (one hole at a time) to bring the wing tips down.
4. Tighten the Trip Springs. The plow should now be level to the ground. If not, repeat the process until it is level.
Troubleshooting
Signs Your Snowplow Attack Angle Needs Adjustment:
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The center cutting edge sits above the pavement.
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Wing tips do not contact the ground.
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Excessive plow chatter during operation.
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Uneven cutting-edgeedge wear.
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Poor scraping performance.
FAQ
What is a snowplow attack angle?
A snowplow attack angle is the angle at which the cutting edge contacts the pavement. Proper attack angle helps improve scraping performance and reduce wear.
Why is my snowplow chattering?
Plow chatter is often caused by an incorrect attack angle, worn cutting edges, improper push beam height, or uneven plow setup.
Why are my snowplow wing tips off the ground?
Wing tips that sit above the pavement may indicate the bumper stop requires adjustment or the push beam height is not within specification.
Why is the center of my V-plow off the ground?
If the snow catcher or center section is elevated, the attack angle may need adjustment by moving the bumper stop farther into the center section.
What is the correct push beam height for a BOSS V-plow?
Push beam height varies by model:
HTX V-Plow: 14.5 inches
XT and DXT V-Plows: 15.5 inches
10' DXT V-Plow: 16 inches
If you have questions while adjusting your Bumper Stop, please contact our Technical Service Team at 800-286-4155 and select option #2, or visit www.bossplow.com to Live Chat with a BOSS team member.
