Features
Chelsea 281 Series hydraulic PowerShift (hot-shift) PTO for 10-bolt automatic transmissions including Allison and Caterpillar
Ductile iron bearing cap rated 117% stronger than gray iron for improved durability over the predecessor 280 Series
O-ring sealing configuration between housing and bearing cap to improve clamp load and reduce vibrational effects
Enhanced clutch pack with steel discs 80% thicker than the prior design to resist premature tooth wear
Nine speed ratios available, including low and high speeds; continuous-duty rated at up to 390 lb-ft (529 Nm) series-level
Wet spline lubrication option extends shaft life 7 to 10 times; SmartStart reduces shock load at engagement; Electronic Overspeed Control (EOC) protects driven equipment
Tech Specs
- Mounting Type: 10-Bolt
- Shift Type: Hydraulic (PowerShift / Hot-Shift)
- Compatible Transmissions: Allison and Caterpillar automatic transmissions with 10-bolt aperture
- Continuous Torque (Series): 390 lb-ft (529 Nm)
- Speed Ratios: Nine ratios including low and high speeds
- Lubrication: Wet Spline (W) option
- Continuous Operation: Yes
Additional Information
Parts Manual: Chelsea 281 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
