The Chelsea 871LDFJW-B3TY is a 10-bolt PowerShift (hydraulic) Power Take-Off from Chelsea's 871 Series, designed for Allison transmissions. The 871 Series carries a continuous torque rating up to 670 lb-ft (908 Nm) with no derating required for continuous-duty operation. Its compact housing keeps clearance issues to a minimum, and multiple assembly arrangements give installers a wide range of mounting options. The series offers nine speed ratios and thirteen output configurations, including SAE B, SAE BB, and SAE C pump spline outputs, as well as companion flange options. A ductile iron bearing cap and o-ring sealing between the housing and bearing cap improve clamp load and reduce vibration. Wet Spline, SmartStart, and Quiet Gear options are available within the 871 Series. Common markets include fire and rescue, truck cranes, pumper/cleaner, and refuse applications.
Features
10-bolt mounting, PowerShift (hydraulic) shift type
Continuous torque rating up to 670 lb-ft (908 Nm), no continuous-duty derating required
Ductile iron bearing cap, 117% stronger than the gray iron predecessor
O-ring sealing between housing and bearing cap for improved clamp load and vibration resistance
Nine available speed ratios and thirteen output options
Compatible with Wet Spline, SmartStart, and Quiet Gear configurations
Tech Specs
- Shift Type: PowerShift (Hydraulic)
- Mounting Type: 10-Bolt
- Transmission Manufacturer: Allison
- Continuous Torque: 670 lb-ft (908 Nm)
- Shaft Power: 64 HP at 500 RPM, 128 HP at 1000 RPM
- Output Shaft Options: SAE B (7/8" - 13T) Pump Spline, SAE BB (1" - 15T) Pump Spline, SAE C (1-1/4" - 14T) Pump Spline
- Output Flange Options: SAE B Pump Flange, SAE C Pump Flange, 1410 Series Companion Flange
- Continuous Operation: Yes
- Speed Ratios Available: Nine
- Output Configurations Available: Thirteen
- Lubricant: Pressure Lube (P) or Wet Spline (W)
Additional Information
The 871 Series replaces the earlier Chelsea 870 Series PTO. Improvements over the 870 Series include the ductile iron bearing cap, o-ring sealing at the housing-to-bearing-cap interface, and support for Wet Spline, SmartStart, and Quiet Gear options. Electronic Overspeed Control (EOC) is available to protect driven equipment. Applicable Parker Chelsea documentation includes the 267/281/288/871/878 Series Owner's Manual, the 871 Series Parts List (HY25-2871-M1/US), and the 871 Series Sales Literature.Parts Manual: Chelsea 871 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
