Handling Torque Converter Lock-Up; General Locations - Komatsu WA470-5H Operation & Maintenance Manual

ATTACHMENTS, OPTIONS

HANDLING TORQUE CONVERTER LOCK-UP

When traveling down slopes of a grade of more than 6°, never depress the accelerator pedal fully, regard-
less of whether the torque converter lock-up switch is ON or OFF. It is extremely dangerous to drive too
fast.
NOTICE
To prevent overrunning when traveling at high speed in the following cases, do not shift down gear.
! When traveling in F3 at a speed of more than 25 km/h (15.5 MPH), do not shift down to F2.
! When traveling in F4 at a speed of more than 36 km/h (22.4 MPH), do not shift down to F3.
When the actual speed range is 3rd or 4th in either FORWARD or REVERSE, the torque converter lock-up func-
tion is actuated according to the travel speed and sets to direct drive.
To prevent overrun, the lock-up is automatically canceled to prevent the travel speed from going above 40 km/h
(24.9 MPH).

GENERAL LOCATIONS

(1) Torque converter lock-up switch
(2) Torque converter lock-up pilot lamp
TORQUE CONVERTER LOCK-UP SWITCH
This switch (1) is the control switch for the torque converter
lock-up function.
Position (a): ON
The pilot lamp inside the switch lights up and the
lock-up is actuated according to the travel speed.
While the lock-up is engaged, the lock-up pilot
lamp on the machine monitor lights up.
Position (b): OFF
The lock-up does not function.
HANDLING TORQUE CONVERTER LOCK-UP
WARNING
(3) Shift indicator (displays actual speed range)
(4) Character display
0.
0.
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