Features
Hydraulic (PowerShift) hot-shift operation for 10-bolt automatic transmission apertures, including Allison
Ductile iron bearing cap, 117% stronger than gray iron predecessor
O-ring sealing configuration between housing and bearing cap improves clamp load and resists vibrational damage
Clutch pack steel discs increased 80% in thickness to resist premature tooth wear
Nine speed ratios, including dedicated low and high speeds
Wet Spline Lubrication option extends shaft life 7 to 10 times over standard
SmartStart reduces shock load at engagement for compatible applications
Electronic Overspeed Control (EOC) protects downstream driven equipment
Rotatable cast iron flanges reduce pump interference clearance issues
Positive stop for driveline outputs eliminates oil seal damage from coupling
Tech Specs
- Mounting Type: 10-Bolt
- Shift Type: PowerShift (Hydraulic Hot-Shift)
- Transmission Compatibility: Allison and Caterpillar automatic transmissions (10-bolt aperture)
- Continuous Operation: Yes
- Speed Ratios: Nine (including low and high)
- Output Options: SAE B pump flange, SAE C pump flange, ISO 7652 pump flange, driveline
- Lubrication: Pressure lube (P) or Wet Spline (W) option
- Series: Chelsea 281
Additional Information
Parts Manual: Chelsea 281 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
