Description
The Chelsea 871 Series Power Take-Off, part number 871XEFJP-B5SV or 871XEFJPB5SV, is a 10-bolt hydraulic PowerShift PTO designed for Allison transmissions. The series delivers continuous torque capacity up to 670 lb-ft (908 N-m) with no derating required for continuous duty applications. Nine speed ratios cover a wide range of output speed requirements, and thirteen output configurations are available. The ductile iron bearing cap is 117% stronger than gray iron, and an O-ring sealing configuration between the housing and bearing cap improves clamp load while reducing vibration-related wear. Optional Wet Spline pump flange, SmartStart, and Quiet Gear features are offered within this series. The 871 Series replaces the earlier Chelsea 870 Series; cross-reference 870XEFJP-B5SV or 870XEFJPB5SV. Call us to confirm the right configuration for your application.
Features
10-bolt hydraulic PowerShift mounting for Allison transmissions
Continuous torque capacity up to 670 lb-ft (908 N-m) – no continuous duty derating required
Ductile iron bearing cap, 117% stronger than gray iron
O-ring seal between housing and bearing cap reduces vibration effects and improves clamp load
Nine speed ratios and thirteen output options within the 871 Series
Optional Wet Spline pump flange, SmartStart shock-load reduction, Quiet Gear input, and Electronic Overspeed Control (EOC)
Tech Specs
- Mounting: 10-Bolt
- Shift Type: PowerShift (Hydraulic)
- Transmission Manufacturer: Allison
- Continuous Torque: 670 lb-ft (908 N-m)
- Shaft Power: 64 HP at 500 RPM / 128 HP at 1000 RPM
- Speed Ratios: Nine
- Output Options: Thirteen
- Lubricant: Pressure Lube (P) with Wet Spline (W) option
- Continuous Operation: Yes
- Replaces: 870XEFJP-B5SV or 870XEFJPB5SV
Additional Information
The Chelsea 871 Series is the only Chelsea PTO to offer all three of the manufacturer’s high-demand options together: Wet Spline, SmartStart, and Quiet Gear. Common markets for this series include fire and rescue apparatus, truck cranes, pumper/cleaner trucks, and refuse vehicles. Electronic Overspeed Control (EOC) is available to protect driven equipment from overspeed events. This unit supersedes the Chelsea 870 Series PTO.
Parts Manual: Chelsea 871 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
