Features
Ductile Iron Bearing Cap rated 117% stronger than gray iron for increased durability
Enhanced Clutch Pack with steel discs 80% thicker than the predecessor 280 Series to resist premature tooth wear
O-ring sealing configuration between housing and bearing cap improves clamp load and reduces vibrational effects
Rotatable cast-iron flanges reduce pump clearance interference issues
Nine speed ratios available including low and high-speed options
Electronic Overspeed Control (EOC) protects driven equipment; SmartStart option reduces shock load at start-up
Wet Spline Lubrication option provides 7 to 10 times greater shaft life
Tech Specs
- Mounting Type: 10-Bolt aperture
- Shift Type: PowerShift (Hydraulic hot-shift)
- Continuous Torque: 390 lb-ft (529 Nm) -- verify actual rating on application pages
- Continuous Operation: Yes
- Transmission Application: Allison and Caterpillar automatic transmissions
- Output Types: SAE B Pump Flange, SAE C Pump Flange, ISO 7652 Pump Flange, Driveline
- Speed Ratios: Nine ratios including low and high speeds
- Lubrication: Pressure Lube (P) or Wet Spline (W) option
- Cross Reference: 280GGFJP-B8XD or 280GGFJPB8XD
Additional Information
The Chelsea 281 Series is suited for demanding vocational markets including fire and rescue, truck cranes, pumper cleaner, and refuse applications. Supporting documentation includes the 281/288 Series Parts List (HY25-2281-M1/US) and the 267/281/288/871/878 Series Owner's Manual, available from Parker Chelsea.
Parts Manual: Chelsea 281 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
