The Chelsea 871XDFJP-N5XV 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 of up to 670 lb-ft (908 Nm) and delivers up to 128 HP at 1,000 RPM, with no derating required for continuous duty operation. A compact housing keeps clearance issues to a minimum, and the ductile iron bearing cap is 117% stronger than the gray iron cap used in the predecessor 870 Series. An o-ring sealing configuration between the housing and bearing cap improves clamp load and reduces vibrational effects. The 871 Series supports nine speed ratios and thirteen output options, including SAE B, SAE BB, and SAE C pump spline configurations.
Features
10-bolt mounting configuration for Allison transmission applications
PowerShift (hydraulic) shift type for powered engagement
Continuous torque rating up to 670 lb-ft (908 Nm) with no continuous duty derating required
Ductile iron bearing cap rated 117% stronger than the gray iron predecessor
O-ring sealing between housing and bearing cap improves clamp load and resists vibration
Compact housing design reduces installation clearance conflicts
Nine speed ratios and thirteen output options, including SAE B, SAE BB, and SAE C pump splines
Wet Spline, SmartStart, and Quiet Gear options available in the 871 Series
Tech Specs
- Mounting Type: 10-Bolt
- Shift Type: PowerShift (Hydraulic)
- Transmission Manufacturer: Allison
- Continuous Torque: 670 lb-ft (908 Nm)
- Shaft Power: 64 HP at 500 RPM / 128 HP at 1,000 RPM
- Output Options: SAE B (7/8 in. - 13T) Pump Spline, SAE BB (1 in. - 15T) Pump Spline, SAE C (1-1/4 in. - 14T) Pump Spline, DIN 5462 Pump Spline, 1410 Series Companion Flange, DIN 120 Flange, DIN 100 Flange
- Output Flanges: SAE B Pump Flange, SAE C Pump Flange
- Continuous Operation: Yes
- Speed Ratios: Nine
- Lubricant: Pressure Lube (P) or Wet Spline (W)
- Supersedes: Chelsea 870 Series
Additional Information
The Chelsea 871 Series replaces the 870 Series PTO. Documented improvements over the 870 Series include the ductile iron bearing cap (117% stronger than gray iron) and an updated o-ring sealing configuration that improves clamp load and reduces vibrational effects from modern engine designs. Markets served by the 871 Series include fire and rescue, truck cranes, pumper cleaner, and refuse applications. The 871 Series is the only Chelsea PTO to offer all three of Chelsea's solutions in one platform: Wet Spline, SmartStart, and Quiet Gear. An Electronic Overspeed Control (EOC) option is available to protect driven equipment.Parts Manual: Chelsea 871 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
