4
Transmission
Proven Reliability.
Electronic Transmission
The Cat seven-speed forward and two-speed reverse Electronic Clutch Pressure Controlled (ECPC)
transmission features enhanced shift control logic with anti-hunt shift strategy for speed continuity, and
to ensure constant shift times.
Min-max Governor Control
ECPC control is matched to the min-max governor control for precise smooth shifting.
Two Reverse Gears
The transmission arrangement provides a second reverse gear for improved performance when
operating in longer rear hauling applications.
Smooth Transmission Gear Shifting – Shift Torque Management (STM)
The 735B features ECPC Shift Torque Management (STM), withimproved Shift Control Logic (SCL)
and Part Throttle Shifting (PTS). These features allow smoother shifting and greater acceleration on
grades while torque is maintained throughout the shiftchanges. SCL also provides automatic shift
selection that is more speci c to the desired machine operation, and downshifts when needed for
maximum acceleration when increased throttle is applied. PTS allows shifting at lower speeds during
part throttle operation, resulting in improved fuel economy, quieter machine operation, and better
maneuvering in reduced speed operating conditions.
