Clutches for Marking Removal Trucks

Runway Cleaning / Airport and Roadway Marking Removal Equipment

Water blasting trucks quickly and completely remove all types of durable traffic markings from asphalt and concrete applications on roadways, airports, parking lots, with up to 40,000 psi. (2700 bar) of water pressure. The simultaneous jetting and vacuuming of the remnant material, minimizes damage to surfaces and eliminates secondary clean-up. Logan flywheel mounted, hydraulically actuated, Bell Housing PTO clutches are an ideal option, and available in No. 00 – No. 5 size flywheel; fitting engines with HP ranges from 50 – 1000 HP.

Self-adjusting, smooth engagement and disengagement, as well as remote activation, make the Bell Housing PTO ideal for diesel and spark ignited engines for mobile applications.

“Over the 5 years we’ve been working with Logan, our technical support calls for clutches have been cut by 75%”

– Curtis Crocker, Technical Support Lead at Hog

With vehicles operating in over 80 countries, Hog Technologies of Stuart, Florida has a variety of waterblasting products that are powered either via a PTO off the main vehicle engine or via a dedicated auxiliary engine. Hog switched from Twin Disc^TM mechanical clutches to Logan Self-Adjusting Bell-Housing Power Take-off clutches for most of their auxiliary engine powered waterblasters. On the auxiliary engine driven products, Logan Bell-Housing PTO clutches provide connect-disconnect power from the engines to engage the waterblasting pumps. These waterblasters are used in a variety of applications, including pavement marking removal, roadway cleaning, airport runway rubber removal, and more.

Waterblasting truck equipped with 375 HP Diesel Engine and an air / fluid actuated Logan LC-314 Bell Housing PTO for smooth engagement.

Heavy duty airport marking removal truck equipped with a Logan LC-311 Bell Housing PTO, with SAE No. 3 flywheel mount, powered by a 240 HP diesel engine.

Medium Duty surface preparation truck equipped with Logan LC-211 Bell Housing PTO powered by a 200 HP Diesel engine.

The Challenge

Hog Technologies has customers all over the world. In order to help their customers make the most of their equipment, Hog will perform 4 days of on-site training. With the mechanical clutches, this training included operation of the lever arm for clutch engagement, manual adjustment of the clutch plates, and other clutch maintenance requirements. “The issue with the mechanical clutches is that the torque needs to be checked on a regular basis and reset; a lot of customers aren’t doing that, and they’re burning their clutches out,” says Curtis Crocker, Technical Support Lead at Hog. Crocker continues, “No matter what we did--we had manuals, we had videos, we had the in-person training--the operators are so busy with other things that it’s hard to keep up with the constant maintenance of mechanical clutches.” This damage would lead to frequent downtime for the operators and countless hours of technical support calls for Crocker and his team.

The Solution

Hog engineers found that the Logan Bell-Housing PTO clutches could replace the mechanical Twin Disc^TM clutches. The Logan clutch fits in the same envelope size as the mechanical clutches, allowing for seamless integration. The Logan Bell-Housing PTO clutches are self-adjusting and actuated either pneumatically or hydraulically, thus eliminating the need for manual torque adjustments and manual engagement via the lever arm. The Logan Power Pack allows the Logan clutch to be activated by a simple push-button, and the Logan manifold provides SOFTSTART™ engagement--smoothly engaging the clutch.

Results

“We love the air activated system--you always know how plates are going to be loaded and you don’t have to worry about the maintenance of the torque setting,” says Crocker. Operators appreciate the Logan system as well since it provides reliability for the equipment necessary to run their business. Instead of worrying about their clutch, operators are getting their jobs done. For Hog, the new Logan clutch has streamlined the training process and made Crocker’s technical support work significantly easier: “Over the 5 years we’ve been working with Logan, our technical support calls for clutches have been cut by 75%.”

Mechanical Over-Center Clutch

Actuation = Mechanical Lever Adjustment = Mechanical Adjustment Max. 909 lb. ft.

Logan Bell Housing Clutch

Acutation = Air or Fluid / Hydraulic Ajustment = Self-Adjusting Max: 963 lb. ft.