Features
Hydraulic PowerShift operation for hot-shift engagement on automatic transmissions
Ductile iron bearing cap rated 117% stronger than gray iron predecessor
Clutch pack steel discs 80% thicker than 280 Series for reduced tooth wear
O-ring sealing configuration between housing and bearing cap improves clamp load and reduces vibrational effects
Nine speed ratios including dedicated low- and high-speed options
Wet spline lubrication option extends shaft life 7 to 10 times versus standard
SmartStart feature reduces shock load at start-up; Electronic Overspeed Control (EOC) protects driven equipment
Rotatable cast-iron flanges reduce interference clearance issues; positive stop for driveline outputs eliminates oil seal damage
Tech Specs
- Mounting Type: 10-Bolt aperture
- Shift Type: PowerShift (Hydraulic)
- Continuous Operation: Yes
- Compatible Transmissions: Allison and Caterpillar automatic transmissions
- Output Types: SAE B pump flange, SAE C pump flange, ISO 7652 pump flange, driveline
- Lubricant Options: Pressure lube (P) or wet spline (W)
- Speed Ratios: Nine, including low and high speeds
- Cross Reference: 280GGFJP-E8RK or 280GGFJPE8RK
Additional Information
Parts Manual: Chelsea 281 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
