Komatsu AX20 Operation & Maintenance Manual page 101

22. TRAVEL OPERATIONS
22.3.5 SHIFTING DIRECTION (CLUTCH-TYPE LIFT TRUCK)
Always stop the lift truck completely before shifting between forward and
reverse.
Stop the lift truck completely. (See "TEMPORARY STOPPING AND
PARKING" on page 3-36 for details of the method of stopping the lift
truck.)
Move the forward/reverse control lever from F to R.
Or move the forward/reverse control lever from R to F.
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