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Arm Adjustments
Weight Capacity
The G-40 arm has a lifting capacity of 12 to 40 pounds
(5.4 to 18.1kg). No tools are required to adjust the arm
strength, but the Steadicam must be worn to adjust the arm.
The section being adjusted must be held at a slightly
upwards angle for the adjustment knob to turn.
Very important: Adjust the forearm section first. Make sure
it properly carries the load. Then adjust the section closest
to the operator (the upper arm) so that it follows or tracks
with the forearm section as the operator booms fully up
and down. Getting the second section to follow the first
can be a little tricky, so you may have to repeat this process
several times.
Adjusting the forearm section. The
arm must be angled slightly up for
the adjustment screw to turn.
Use a 1/4” Allen to adjust the
“side-to-side” screws. When
wearing the rig, be sure to hold
the centerpost in line with the
“in-out” thumbscrews. This will
take the loading off the side-to-
side screws.
Arm Lift Angle
Determining your threads is part of basic operating technique. Two adjustment screws in the socket block
on the vest and two “rod ends” in the mating section of the arm determine the angle of lift of the arm.
These two adjustments are your “threads.” They are personal and critical for good operating. Some
combination of adjustment of these screws – and your physique and posture – will make the arm lift
straight up when carrying the sled.
The angles of adjustment are not directly “in-out” and “side-
to-side,” but rotated about 30 degrees clockwise (relative
to the operator). We can suggest approximate threads to
start, but the only way to test your threads is to pick up the
Steadicam and see what happens.
Side-to-side
For almost all operators, regardless of body type, the typical
adjustment for the “side-to-side” screws (the rod ends in the
arm) is 1.5 to 2 turns out on the top screw and ALWAYS all
the way in on the bottom screw.
When carrying the sled, use a 1/4 inch Allen wrench. The two
side-to-side screws work independently of one another. Do
not tighten the lower screw, but be sure it is all the way in,
and then back it out 1/8th of a turn.
Adjusting the upper
arm section
Boom the arm up and down, watching to see if the upper
arm follows the forearm.
Arm
Adjustments
A
rcher
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