The Chelsea 680 Series Power Take-Off, part number 680GFAHX-P3AF or 680GFAHXP3AF, is an 8-bolt mount unit designed for medium- to heavy-duty manual transmission applications on Eaton/Fuller and Volvo/Mack platforms, with a deep-mount housing option suited to Mack transmissions. Shift is wire/cable mechanical. The output shaft is a 1-1/4" round configuration with keyway. Intermittent torque capacity falls in the 301-400 lb-ft range, with application-specific ratings up to 375 lb-ft (508 Nm) - confirm your exact torque requirement against the application pages before ordering. Shaft power delivery is rated at 36 HP at 500 RPM, 71 HP at 1,000 RPM, and 107 HP at 1,500 RPM. The 680 Series is purpose-built for higher-torque vocational work including pneumatic blower drives. Call us to confirm proper fit for your application.
Features
8-bolt mounting for broad manual transmission coverage including Eaton/Fuller and Volvo/Mack
Deep-mount housing option available for Mack transmission applications
Wire/cable mechanical shift type
1-1/4" round output shaft with keyway
Intermittent torque rated 301-400 lb-ft range; application-specific rating up to 375 lb-ft (508 Nm)
Shaft power: 36 HP at 500 RPM, 71 HP at 1,000 RPM, 107 HP at 1,500 RPM
Tech Specs
- Mounting Type: 8-Bolt
- Shift Type: Wire/Cable, Mechanical
- Transmission Manufacturer Compatibility: Eaton/Fuller, Volvo/Mack, Other
- Output Shaft Type: 1-1/4" Round with Key
- Intermittent Torque: 301-400 lb-ft (501+ Nm); application-specific rating up to 375 lb-ft (508 Nm) - check application pages for actual torque ratings
- Output Power: 56+ HP (51+ kW)
- Shaft Power: 36 HP (27 kW) at 500 RPM, 71 HP (53 kW) at 1,000 RPM, 107 HP (80 kW) at 1,500 RPM
Additional Information
Parts Manual: Chelsea 680 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
