Power Take-Off (PTO) Clutches - Oil and Gas Applications

In this Oil & Gas vehicle application, the Logan SAE 600 series Direct Drive PTO is mounted on a typical  2-pad live PTO pump pad, sandwiched between a CAT 3412 Diesel Engine and an Allison 8900 Series Transmission. The Logan 600 series Direct Drive Power Take-off (PTO) clutch will connect or disconnect the single and tandem pumps mounted to the live PTO pump pad. The pumps are used only on the job site, and remain disconnected (via the Logan PTO) when the vehicle is idle and not in use, or when driving to and from the job site. This option to clutch-in and clutch out the pumps minimizes wear and tear on the pumps, reduces unnecessary fuel consumption, and the chances of over speeding the pumps (since they are disconnected from the drivetrain) when the vehicle is at highway speeds during transport. 

Close up of (4) Logan 600 series PTO's used to connect and disconnect the single and tandem pumps between jobs, or during on-highway trips to prevent pumps  from overspeeding.Logan SAE 600 series Direct Drive PTO's Mounted to a live PTO wing drive, sandwiched between a CAT 3412 Engine and an Allison 8900 Series Transmission. Logan PTO's are used to disconnect single and tandem pumps on an oil and gas vehicles.

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Logan Direct Drive PTO Clutches Enhance Bow Thruster

By Andrew Logan
April 13, 2018 Category: Direct PTO, Marine

Steering a commercial boat or large yacht can be similar to driving a heavy car with bad brakes. Its difficult to stop, and response to the rudder is slow. This poses no problem in the open sea, but it can be real challenge to maneuver the vessel in a congested marina or when docking. This is where a bow thruster comes in. A bow thruster consists of an open-ended tube that runs through the underwater sections of the hull near the bow and perpendicular to the keel. A propeller mounted at some point inside this tube can rotate in either direction. The helmsman selects the rotational direction and actuates the propeller. As a result, the bow thruster sucks a solid stream of water in one end of the tube and forces it out of the other, pushing the bow sideways and augmenting the rudder to make steering more responsive. Two Props are better than one Traditional single propeller systems generate thrust by accelerating water in the axis of the propeller shaft. However, the water discharged

Logan Bell Housing PTOs Now Available for Jet Stream Waterblasters

By Andrew Logan
April 13, 2018 Category: Bell Housing, Water Blasting, Hydro Excavation / Vacuum / Water Jetting Equipment

Logan self-adjusting, hydraulically actuated Bell Housing Power Take-Off (PTO) clutches have been standard equipment on OEM marine and mobile equipment for over 18 years. Thousands of Logan units are in the field, operating on airport snow blowers, highway and airport marking and runway rubber removal equipment, and more recently trailor mounted waterblasting equipment. Logan vs. Mechanical PTOs The advantage of the Logan Clutch is its ability to engage and disengage the water jetter hydraulically, through push-button activation, eliminating the use of a mechanical hand lever or yoke type clutch engagement system, which dates back to the early 40s. Smooth, Logan softstart engagement eliminates clutch downtime due to over and under adjustment. And since the Logan clutch is self-adjusting, clutch engagement is smooth and consistent after hundreds of hours of use. The mechanical clutch requires the operator to hand engage a clutch, which opens up the opportunity for untrained operators

Logan Self-Adjusting Bell Housing PTO Clutches Now available for Field Retrofit into 2005 and older Oshkosh H-Series Blowers

By Logan Clutch
April 11, 2018 Category: Mobile, Snowblowing

Logan self-adjusting Bell Housing PTO clutches have been standard equipment on all Oshkosh H-Series Blowers manufactured since 2005. Hundreds of Logan units are in the field, operating at a high level of excellence and readiness for major U.S. Airports such as Chicago OHare, Boston Logan, Cleveland-Hopkins, Buffalo Airport, and more. The Logan Advantage: The advantage of the Logan clutch is its ability to engage the snow blower drivetrain hydraulically (for factory blower trucks), and pneumatically (for pre-2005 H-Series field retrofits). This eliminates the use of a mechanical hand lever or yoke type clutch engagement system, which requires frequent mechanical adjustments many times during snow removal conditions, which leads to downtime and inconsistent operation. For example, mechanical clutches that were improperly adjusted, often led to disc wear and eventual clutch failure requiring the truck to be taken out of commission, requiring many hours to pull the blower trucks drivetrain

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