Buhler 400 - Manual (Page 7)

7 Engine
Built-in Cummins ® reliability
mix of proven field performance and
advanced technology is designed to be
powerful, durable and reliable.
cummins QsX15
The HHT Series (435, 585 and 535 hp)
is powered by the dependable Cummins
QSX 15-liter six-cylinder turbocharged
engine. Buhler selected the Cummins
QSX15 during the development of
the HHT Series to optimize the per-
formance of the tractor, shaping power
curves and ratings to align with work
environment, load factors and operat-
ing modes. The result is an efficient and
reliable high horsepower tractor that
will work hard for years to come.
35% torque rise at 1400 RPM
7% power bulge at 1800 RPM
900
1100
1200
1400
1000
1300
1500
1800 1700 1600 1500 1400 1200 1300
Torque (lb-ft)
Engine RPM
Power (hp)
300
350
400
325
375
425
450
Cummins QSM (305 :: 340 :: 375 :: 400)
1300
1500
1600
1800
1400
1700
1900
1800 1700 1600 1500 1400 1200 1300
Torque (lb-ft)
Engine RPM
Power (hp)
425
475
525
450
500
550
575
Cummins QSX (435 :: 485 :: 535)