Gradall XL3100IV, Operators Safety Manual, Page: 171 / 172

Hand Signals
Special Signals - When signals for auxiliary equipment functions or conditions not covered are required, they
shall be agreed upon in advance by the operator and signalman.
EMERGENCY STOP - With both
arms extended laterally, hands
open downward, move arms back
and forth. STOP - With either arm extended
laterally, hand open downward,
move arm back and forth. STOP ENGINE - Draw thumb or
forefinger across throat.
RAISE BOOM - With either arm
extended horizontally, fingers
closed, point thumb upward. LOWER BOOM - With either arm
extended horizontally, fingers
closed, point thumb downward. MOVE SLOWLY - Place one hand
motionless in front of hand giving
motion signal. (Raise load slowly
shown)
EXTEND BOOM - With both
hands clenched, point thumbs
outward. RETRACT BOOM - With both
hands clenched, point thumbs
inward. THIS FAR TO GO - With hands
raised and open inward, move
hands laterally, indicating distance
to go.
SWING- With either arm extended
horizontally, point with forefinger to
direction of swing rotation. OPEN BUCKET- Hold one hand
open and stationary. Rotate other
hand in small vertical circle with
forefinger pointing horizontally at
open hand. CLOSE BUCKET- Hold one hand
closed and stationary. Rotate
other hand in small vertical circle
with forefinger pointing
horizontally at closed hand.
OY1090
OY1100
OY1110
OY1120 OY1130
OY1140
OY1150 OY1160 OY1170
OAC0300
OAC0310
OAC0320