Komatsu TORQFLOW transmission consists of a water-cooled,
3-element, 1-stage, 2-phase, torque converter with lockup clutch, and
a planetary gear, multiple-disc clutch transmission which is
electronically controlled, hydraulically actuated and force-lubricated for
optimum heat dissipation. Shift lock lever and neutral safety switch.
Palm Command Control System (PCCS) lever controls for all
directional movements. Pushing the PCCS lever forward results in
forward machine travel, while pulling it rearward reverses the
machine. Simply tilt the PCCS lever to left to make a left turn. Tilt it
to the right for a right turn.
Hydrostatic Steering System (HSS) is powered by steering planetary
units and a hydraulic pump and motor. Counter-rotation turns are
also available. Wet, multiple-disc, pedal-controlled service brakes
are spring-actuated and hydraulically released. Gear shift lock lever
also applies parking brake.
Double-reduction final drive of spur and planetary gear sets
to increase tractive effort and reduce gear tooth stresses for
long final drive life. Segmented sprocket teeth are bolt-on for
Closed-center load sensing system (CLSS) designed for precise
and responsive control, and for efficient simultaneous operation.
Hydraulic control units:
All spool valves externally mounted beside the hydraulic tank.
Piston type hydraulic pump with capacity (discharge flow) of
248 ltr/min / 65.5 U.S. gal/min at rated engine rpm.