Chelsea 280 Series is a hydraulically shifted hot shift PTO designed for automatic transmissions with a 10-Bolt aperture, commonly found on Allison and Caterpiller transmissions. The 280 Series replaces the 277/278 Series.
SAE B Pump Flange, SAE C Pump Flange, ISO 7652 Pump Flange, Driveline
PowerShift (Hydraulic), Hydraulic
301-400 lb-ft, 501+ Nm
Allison
P = Pressure Lube, W = Wet Spline
Yes
51+ kW, 56+ HP
10-Bolt
Smart Start – Rd Shaft (1-1/4″ – 5/16″ Key), 3/4″ – 11T Pump Spline, SAE B (7/8″ – 13T) Pump Spline, SAE C (1-1/4″ – 14T) Pump Spline, DIN 5462 Pump Spline, 1410 Companion Flange, DIN 120 Flange, DIN 100 Flange
390 (Check Application Pages for Actual Torque Ratings) lb-ft, 529 (Check Application Pages for Actual Torque Ratings) Nm
500 RPM: 37, 1000 RPM: 74 HP, 500 RPM: 28, 1000 RPM: 56 kW
49 lb, 22 kg
Compliance, Certifications & Safety |
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Chelsea Power Take-Off (PTO) Safety Information |