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Chealsea PTO

Chelsea is a global leader in innovative and High-performance Power Take-Offs. Chelsea offers a wide range of PTOs with lots of option to be able to offer you the best possible solution to your application.

Contact us for help and support – Phone number +45 43 29 31 00

> Placing PTO / PTO on Allison Transmissions – Click here for PDF

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For Allison AT500, MT600 and 1000-2000 series

  • The Chelsea 230 and 231 Series Powershift Power Take-Offs can be used with both manual and automatic transmissions.
  • Standard shifting mechanism is electric-over-air with an optional air shift engagement for the clutch pack.
  • PTO/Dump Pump Combo Valve Options available.
  • NEW! “V” Shift Option, Standard Air Shift Option less Installation Kit
  • The 230 is available in six speed ratios, while the 231 is available in five speed ratios.
  • The 230 Series features a standard housing configuration, while the 231 provides a low profile housing for avoiding clearance problems and providing easier installation in tight areas.
  • Pressure lubrication is optional on both units.
  • Optional shaft brake (patent # 7159701) for both automatic and manual transmission applications.

> Sales bulletin

For Allison series 3000 og 4000

  • Exceeds the torque capacity of a 6-bolt Power Take-Off, while offering the tighter sealing of a 10-bolt pattern.
  • Available in five speed ratios and fourteen output options, including Chelsea’s popular 360° rotatable flange.
  • SuperTorqueTM gears available for 20% higher intermittent torque ratings.
  • Wet Spline increase spline life with a factor of 10

> Sales bulletin
> Spare parts
> Owners manual

For Allison AT500, MT600 and 1000-2000 series

  • Designed for Automatic transmissions.
  • 271 housing provides a low profile housing for avoiding clearance problems and providing easier installation.
  • Pressure lubrication is optional on both units.
  • Optional self adjusting shaft brake (patent # 7159701) available for product transfer applications.
  • Electric/Hydraulic shift unit.
  • PTO/Dump Pump Combo valve options available.

> Sales bulletin 270
> Sales bulletin 271

For Allison og Caterpillar transmissions

  • Exceeds the torque capacity of a 6-bolt Power Take-Off, while offering the tighter sealing of a 10-bolt pattern.
  • Available in five speed ratios and fourteen output options, including Chelsea’s popular 360° rotatable flange.
  • SuperTorqueTM gears available for 20% higher intermittent torque ratings.
  • Electronic Overspeed Control (EOC) available to protect driven equipment from overspeeding.
  • Electric/Hydraulic Shift w/ New Cartridge Valve for Better Transmission/Chassis Fitment.
  • PTO/Dump Pump Combo valve options available.
  • Shaft Brake option (patent # 7159701) available for product pump applications.
  • Wet Spline Option Available which Increases Spline Life by a Factor of 10.

> Sales bulletin

For Allison og Caterpillar transmissions

  • Enhanced Power Take-Off Housing Design for Maximum Transmission Clearance when Direct Mounting a Pump.
  • Six Speed Ratios and Fourteen Output Options, including Chelsea’s Popular 360° Rotatable Flange.
  • SuperTorqueTM Gears Available for 20% Higher Intermittent Torque Ratings.
  • Electric/Hydraulic Shift w/ New Cartridge Valve for Better Transmission/Chassis Fitment.
  • PTO/Dump Pump Combo Valve options available.
  • Shaft Brake Option (patent # 7159701) available for Product Pump Applications.
  • Wet Spline Option Available which Increases Spline Life by a Factor of 10.

> Sales bulletin

For Allison transmissions

  • Single continuous duty torque rating, up to 390 Lbs.ft (407 N.m). No more intermittent rating.
  • Pump clearance issues have been improved with rotatable cast iron flanges and the Wet Spline Pump Flange option provides 7 to 10 times greater shaft life.
  • Broader coverage of speed ranges expands from 5 ratios to 9 ratios and includes lower and higher speeds that were never available in the past.
  • The standard output shaft features a new positive stop for Driveline outputs that eliminates the ability for shaft couplings to damage Oil Seals.
  • Three position options for the integrated solenoid valve, plus a remote mounted option provides maximum clearance under the truck.
  • The pressure / lube hose will be included with the new 280 Series. No need to order separately.
  • Three housing arrangements – “3” & “5” assembly arrangements for the 280 Series replace the 277*5 assembly. An “8” assembly arrangement for the 280 Series replaces the 278 Series.

> Sales bulletin

For Allison MD og HD series

  • Designed for heavy duty applications on automatic transmissions that have 8-bolt PTO openings.
  • It is hydraulically operated (electric-over-hydraulic) and pressure lubricated.
  • Three speed ratios are available at 500 lbs-ft of torque.
  • Standard output shaft 1-1/2″ spline w/1410 flange.

> Sales bulletin

For Allison MD and HD series

  • Power Take-Off torque ratings from 285 to 575 lbs-ft.
  • The compact design allows the Chelsea 859 Series to fit where others won’t.
  • Electric Overspeed Control (EOC) available to protect driven equipment from overspeeding.
  • Advanced gear design for increased tooth-contact ratio for quieter operation.
  • Electric/Hydraulic shift w/ New Cartridge Valve for Better Transmission/Chassis Fitment.

> Sales bulletin

For Allison transmissions

  • Power Take-Off Rated Up to 670 Lbs.ft [908Nm] of Torque.
  • Available in nine speed ratios and nine output options, including Chelsea’s popular 360° rotatable flange.
  • Electronic Overspeed Control (EOC) available to protect driven equipment from overspeeding.
  • Electric/Hydraulic Shift w/ Cartridge Valve for Better Transmission/Chassis Fitment.
  • Small Housing Profile for better frame clearance.
  • Internal Shaft Brake option (patent # 7159701) available for product pump applications.
  • Rotatable Wet Spline Options Available which Increases Spline Life by a Factor of 10.

> Sales bulletin

For Allison 3000 and 4000 series

  • Moves the P.T.O. Mounting Flange to the Rear of the Transmission – Allows Direct Mounting of Larger Pumps.
  • P.T.O. Torque Ratings up to 670 lbs-ft. – Able to Transmit the Maximum Torques Allowable from the Allison Transmissions.
  • Wet Spline Outputs – Extends Shaft Life and Eliminates the Need to Disassemble the PTO/Pump to Frequently Grease the Shaft Splines.
  • Electric Overspeed Control (EOC) available to protect driven equipment from overspeeding.
  • Heavy Duty Gears, Bearings, Shafts and Housing – Tested to Withstand the Severest Applications such as Refuse, Cranes and Fire/Rescue.
  • Electric/Hydraulic shift w/ New Cartridge Valve – Better Transmission/Chassis Fitment.

> Sales bulletin

BERTEL O. STEEN POWER SOLUTIONS DENMARK A/S importing and shipment of:

Contact us

BERTEL O. STEEN POWER SOLUTIONS DENMARK A/S
Sydvestvej 142-146
2600 Glostrup, Denmark

Phone: +45 43293100
Email: post.dk@bospower.com

CVR: DK26648475

Nordea Glostrup
2217-6875 597 025 DKR

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