Hitachi ZW 310-6 Operator's Manual page 159

 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 that 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
1-97
C
E B
2
N
D A
G F
E
N
D
1
N
MNEC-03-003
C
B
N
A
M4GB-01-072