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Split-Shaft PTOs
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Parts, Units & Engineering

Cotta Transmission Split-Shaft PTOs

Eliminate the cost and deadweight of a deck engine by using the main engine to power both the truck and deck equipment. Cotta Split Shaft PTO's (sometimes called Split Shaft Transfer Cases) allow one engine to do the job of two by routing main engine power to either the rear wheels or the deck equipment.

This is accomplished by using a split input shaft in combination with a single clutching sleeve. In road position engine power is connected straight through to the drive axle. In PTO position the axle driveshaft is disengaged and engine power is re-directed up through the gear train to outputs to operate the deck options such as pumps, compressors, blowers, etc. The clutch is designed so that it will not engage in both the PTO and truck mode at the same time. In operation you drive to the work site, shift to PTO, and go to work.

TR1883

TR1883 Bulletin

Details

TR1883 Specifications

Nominial HP: 750

Max input speed: 2800

Center distance : 13.7 inches

Ratio input to output: 2.914, 1.957, 2.703 to 1

Shift : Air or mechanical cable

Lubrication: Pump/splash

Input shaft: 2.75 X 10

Output shaft: 2.75 X 10

Weight: 800 lbs.

Options: Flanges, pump pad, shafts.

Comments or application notes: High reduction heavy duty unit used primarily for driving piston pumps.

TR1883 Overview

Model TR1883 is a high reduction ratio, heavy duty split shaft PTO is designed to allow the main engine to both propel the truck to the work site and then shift to PTO mode to power auxiliary deck equipment such as pumps, blowers, drills etc. The gearbox mounts between the trucks transmission and the rear axle. Power is directed to the rear axle or to the PTO shaft, but not to both at the same time. An anti-kick out feature Insures that it will not 'walk" out of either the PTO mode or the driving mode as long as torque is applied to the input shaft.

The gears are constant mesh with a sliding clutch used to select PTO or drive modes. The gears are helical, carburized, and precision ground for high strength and quiet operation. The case is cast iron and the bearings tapered roller throughout

TR2090

TR2090 Bulletin

Details

TR2090 Specifications

Nominial HP: 550

Max input speed: 3000

Center distance : 805

Ratio input to output: 1:1.08, 1:1.59 overspeed

Lubrication: Pump/splash

Input shaft: 2.75X10

Output shaft: 2.75X10

Weight: 500 lbs.

Options: Flanges, yokes, shafts, pump pads.

TR2090 Overview

Model TR2090 is a heavy duty two gear split shaft PTO designed to allow the main engine to both propel the truck to the work site and then shift to PTO mode to power auxiliary deck equipment such as pumps, blowers, drills etc. The gearbox mounts between the trucks transmission and the rear axle. Power is directed to the rear axle or to the PTO shaft, but not to both at the same time. An anti-kick out feature Insures that it will not 'walk" out of either the PTO mode or the driving mode as long as torque is applied to the input shaft.

TR2165

TR2165 Bulletin

Details

TR2165 Specifications

Nominial HP: 550

Max input speed: 3000

Center distance : 20 inches

Ratio input to output: 1:1

Ratio to PTO or pumps: 1:1

Lubrication: Pump/splash

Input shaft: 3” x 23

Output shaft: 3” x 23

Disconnects included: Customer specified

Weight: 1450 lbs approx.

Options: Yokes, flanges, disconnects, pump pads, shafts

TR2165 Overview

Model TR2165 is a heavy duty split shaft transfer case is designed to allow the main engine to both propel the truck to the work site and then shift to PTO mode to power the auxiliary equipment such as pumps, blowers, drills etc.

The gearbox mounts between the trucks transmission and the rear axle. Power is directed to the rear axle or to the PTO shaft, but never to both at the same time. This is a positive safety feature. An anti-kick out feature Insures that it will not 'walk" out of either the PTO mode or the driving mode as long as torque is applied to the input shaft.

The gears are helical, carburized, and precision ground for high strength and quiet operation. The case is cast iron and the shaft bearings tapered roller throughout. The TR2165 is a severe service gearbox capable of supporting several PTO options including pumps, shafts, and clutches. An optional top section with air clutch is also available.

TR2191

TR2191 Bulletin

Details

TR2191 Specifications

Nominal HP: 800

Max input speed: 3000 RPM

Center distance : 26 inches

Ratio input to output: 1:1

Lubrication: Pump/splash

Input shaft: 2.75x10

Output shaft: 2.75x10

Disconnects included: Customer specified

Options: Yokes, flanges, disconnects, pump pads, shafts

Weight: 1000 lbs.

TR2191 Overview

Model TR2191 is a heavy duty split shaft transfer case is designed to allow the main engine to both propel the truck to the work site and then shift to PTO mode to power the auxiliary equipment such as pumps, blowers, drills etc. It mounts between the trucks transmission and the rear axle. Power is directed to the rear axle or to the PTO shaft, but never to both at the same time. This is a positive safety feature. An anti-kick out feature Insures that it will not 'walk" out of either the PTO mode or the driving mode as long as torque is applied to the input shaft.

TR2237

TR2237 Bulletin

TR2237 Overview

Cotta TR2237 series split shaft PTO’s have three PTO stations. Disconnects are available on either top station. Mechanical or optional air actuation for both main shift and disconnect is available. A 1.25 and 1.4 overdrive ratio on the top station is also optional.

TR2237 Split Shaft PTO’s feature a heavy duty cast iron case and ground helical gearing for high capacity and quiet operation.

A hybrid splash lube system assures oil is distributed to all gears and bearings. A lube pump can be added for extreme applications requiring lube oil coolers.

A unique “offset tooth” feature in the main shift is provided to keep the gearbox for kicking out during operation. The clutch is also designed to prevent operation in both PTO and drive mode at the same time.

Cotta Split Shaft PTO’s feature a true split shaft providing the ease and efficiency of shifting from PTO to drive mode with one clutch, one shift—no need for multiple clutches and shifting devices.

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Palmer Johnson Power Systems

Parts, Units & Engineering

Cotta Transmission Split-Shaft PTOs

TR1883

TR1883 Specifications

TR1883 Overview

TR2090

TR2090 Specifications

TR2090 Overview

TR2165

TR2165 Specifications

TR2165 Overview

TR2191

TR2191 Specifications

TR2191 Overview

TR2237

TR2237 Overview

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