Hitachi ZW 310-6 Operator's Manual page 165

 When pushing down the lift arm control lever to the "Float"
position (C), the lift arm moves to the position preset at
lower kickout and is held in the position. When the lift
arm moves to the preset position, the lift arm control lever
automatically moves to "Neutral" (N) position.
f
NOTE: When operating the machine in the Float (C) position,
lower the bucket on the ground by setting the lift arm lower
position (B), and then tilt the lever to the Float position.
OPERATOR'S STATION
1-99
C
E B
2
N
D A
G F
E
N
D
1
N
MNEC-03-003
C
B
N
A
M4GB-01-072