S
W
I
N
G
With either arm extended horizontally, point with forefinger
to direction of swing rotation.
D
I
P
P
E
R
A
R
M
I
N
W
A
R
D
With both hands clenched,
point thumbs inward.
D
I
P
P
E
R
A
R
M
O
U
T
W
A
R
D
With both hands clenched,
point thumbs outward.
C
L
O
S
E
B
U
C
K
E
T
Hold one hand closed and
stationary. Rotate other
hand in small vertical circle
with forefinger pointing
horizontally at closed hand.
O
P
E
N
B
U
C
K
E
T
Hold one hand open and
stationary. Rotate other
hand in small vertical circle
with forefinger pointing
horizontally at open hand.
T
U
R
N
T
H
I
S
F
A
R
T
O
G
O
Raise forearm with closed fist indicating inside of turn.
Move other fist in vertical circle indicating direction of track
or wheel rotation.
T
H
I
S
F
A
R
T
O
G
O
With hands raised and open
inward, move hands
laterally, indicating distance
to go.
C
O
U
N
T
E
R
R
O
T
A
T
E
Place hand on head indicating side or reverse track or
wheel rotation. Move other hand in vertical circle indicating
forward rotation of other track or wheel.
M
O
V
E
S
L
O
W
L
Y
Place one hand motionless
in front of hand giving motion
signal. Raise load slowly is
shown.
1
3
2
O
p
e
r
a
t
i
n
g
t
e
c
h
n
i
q
u
e
s
S
i
g
n
a
l
l
i
n
g
d
i
a
g
r
a
m