The Chelsea 680DFMAX-56XV or 680DFMAX56XV is a Chelsea 680 Series Power Take-Off built for 8-bolt transmission apertures on Eaton/Fuller and Volvo/Mack transmissions, with a deep-mount housing option for Mack applications. Shift type is wire/cable mechanical. The output shaft is a 1-1/4" round shaft with keyway. Intermittent torque rating for the 680 Series is 375 lb-ft (508 Nm) - check application pages for actual torque ratings on your specific install. Output power exceeds 56 HP (51 kW), with shaft power of 36 HP at 500 RPM, 71 HP at 1000 RPM, and 107 HP at 1500 RPM. The cast iron housing with tapered cone bearings on the output shaft makes this series a common choice for pneumatic blower and pump applications. Call us to confirm proper fit for your transmission.
Features
8-bolt mounting for compatibility with most manual transmissions featuring an 8-bolt PTO aperture
Wire/cable mechanical shift type
1-1/4" round output shaft with key
Intermittent torque rating: 375 lb-ft (508 Nm) - verify actual rating on application pages
Shaft power: 36 HP at 500 RPM, 71 HP at 1000 RPM, 107 HP at 1500 RPM
Deep-mount housing option suited to Mack transmission applications
Tech Specs
- Mounting Type: 8-Bolt
- Shift Type: Wire/Cable, Mechanical
- Output Shaft Type: 1-1/4" Round with Key
- Intermittent Torque: 375 lb-ft (508 Nm) - Check Application Pages for Actual Torque Ratings
- Output Power: 56+ HP (51+ kW)
- Shaft Power: 36 HP (500 RPM), 71 HP (1000 RPM), 107 HP (1500 RPM); 27 kW (500 RPM), 53 kW (1000 RPM), 80 kW (1500 RPM)
- Transmission Manufacturer Compatibility: Eaton/Fuller, Volvo/Mack, Other
Additional Information
Parts Manual: Chelsea 680 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
