Komatsu TORQFLOW transmission consists of a water-cooled,
3-element, 1-stage, 1-phase torque converter with lockup clutch
and a planetary gear, multiple-disc clutch transmission which is
hydraulically actuated and force-lubricated for optimum heat
dissipation. Gearshift lock lever and neutral safety switch help
prevent accidental starts.
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 easy replacement.
PCCS, joystick controlled, wet multiple-disc steering clutches are spring-loaded and hydraulically released.Wet multiple-disc,
pedal/lever controlled steering brakes are spring-actuated
hydraulically released and require no adjustment. Steering clutches and brakes are interconnected for easy, responsive steering.
|Minimum turning radius||15'1"||4.6 m|
Closed-center load sensing system (CLSS) designed for precise and responsive control, and for efficient simultaneous operation.
|Relief valve setting||3,980 psi||27.5 MPa|
|Control valves (Spool control valves for Semi-U tilt dozer and Full-U tilt dozer):|
|Blade lift||Raise, hold, lower, and float|
|Blade tilt||Right, hold, and left|
|Control valves (Spool control valves for variable digging angle multi-shank ripper and giant ripper.|
|Ripper lift||Raise, hold, and lower|
|Ripper tilt||Increase, hold, and decrease|
|Hydraulic cylinders||Double-acting, piston|
Number of cylinders
|Blade lift / 2||7.09"||180 mm|
|Blade tilt / 1||9.84"||250 mm|
|Ripper lift / 2||8.86"||225 mm|
|Ripper tilt / 2||8.86"||225 mm|
|Hydraulic oil capacity (refill):|
|Semi-U tilt dozer||48 U.S. gal||180 ltr|
|U tilt dozer||48 U.S. gal||180 ltr|
|Ripper equipment (additional volume):|
|Giant ripper||34 U.S. gal||130 ltr|
|Multi-shank ripper||34 U.S. gal||130 ltr|