PS Magazine - TB 43-PS-735
PS, The Preventative Maintenance Monthly
ISSUE 735
FEBRUARY 2014
Dog Everything
Use Whipline
Hoist
Lower Boom
Raise Boom
Move Slowly
Stop
Lower
Use Main Hoist
Swing
Travel
Travel
(one track)
Extend Boom
Raise Boom &
Lower Load
Emergency Stop
Travel
(both tracks)
Retract Boom
Lower Boom &
Raise Load
Clasp hands in
front of body.
Tap elbow with one hand,
then use regular signals.
(
Note:
For auxillary hoist.)
With forearm vertical
and fore±nger pointing up,
move hand in small circles.
Arm extended,
±ngers closed and thumb
pointing down.
Arm extended,
±ngers closed and thumb
pointing up.
Use one hand to give any motion signal.
Place other hand motionless in front of
signaling hand.
With arm extended
to the side and palm down,
swing arm back and forth.
With arm extended down,
fore±nger pointing down,
move hand in small circles.
Tap ±st on head,
then use regular signals.
With arm extended, point with ±nger
in direction of boom swing.
With arm extended
forward and hand open and
slightly raised,
make pushing motion in
direction of travel.
Raise ±st on one side to
indicate track to lock. Travel
opposite track in direction of
circular motion of other ±st in
front of body.
(Note:
Crawler
cranes only.)
Both ±sts in front of body with
thumbs pointing out.
Arm extended, ±ngers
closed, thumb pointing up.
Other arm bent slightly with
fore±nger pointing down and
rotating in circle.
Both arms and ±ngers outstretched horizontally and palms
down, swing arms back and forth.
Use both ±sts in front of
body to make circular motion
indicating direction of travel.
(Note:
Crawler cranes only.)
Both ±sts in front of body with
thumbs pointing in.
Arm extended, ±ngers
closed, thumb pointing down.
Other arm bent slightly with
fore±nger pointing up and
rotating in circle.
MOBILE CRANE
Ground Guide Signals
33
PS 735
FEB 14
C
R
U
N
CH
!
M
eanwhile, on the other
side of the motor pool…
A
nd a
short
distance
away…
OK, Parker!
Slow and easy!
SIGNAL:
Tilt mast
back
Watch
out!
Ohmigosh!
are You OK?
C’mon! I just
want you to
lower
it to
the
right.
What does
that
signal
mean?
Huh?
735 32-33.indd
1-2
1/4/14
4:22 PM
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