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3

The G-70x

 arm socket is 

inserted into the socket block 

on the vest.

Adjusting the arm lift angle 

Setting 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 sled 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 2 to 2.5 turns out on the top 

screw and ALWAYS all the way in on the 

bottom screw. 

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 to prevent binding. 

In and out

Looking down at the top “in-and-out” 

screw. Count the threads indicated by the 

arrow. This is a typical adjustment for a 

person in reasonable shape. 

The “in-out” adjustment on the socket 

block varies greatly by the operator’s 

body type. If you have big pectorals and 

a flat stomach, the top screw is almost 

all the way in. If you’ve been eating well 

and exercising less, the top screw will be 

further out. 

Always dial in the top screw first to your 

setting, then turn in the bottom screw 

until it just snugs up against the fitting. 

There is no need to tighten the bottom 

screw very hard. 

With both pairs of screws properly 

adjusted, the camera will float in all 

positions with the operator standing 

relatively comfortably. 

On the arm, pull the “parachute pin,” 

flip the mating block, and reinsert the 

parachute pin with the kick back link 

rotated (see page 6). Note that the mating 

block is now reversed; the upper side to 

side adjusting screw is now the lower 

screw and vice versa. 

To set your threads, first dial the lower 

side to side screw all the way in, then 

adjust the upper screw to your threads 

- about 2 to 2.5 turns out. Use the same 

procedure to change back to left side 

operating. 

count 

threads 

here

Goofy foot

If you want to operate “goofy-foot,” — 

with the sled on the right side –you will 

need to reverse the socket block. 

On the vest, loosen the socket block 

height adjustment screws. You may have 

to tap the plate hard with your fist to get 

everything to release. Flip the plate and 

retighten the clamp. Be sure the dovetail 

clamp properly mates with the beveled 

retainer. 

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.

Summary of Contents for G-70x Arm

Page 1: ...p n LIT 257010 J G 70x Arm Ultra2 Shadow stabilizers ...

Page 2: ...chanism an arm post drag control and a kickback link Titanium springs Adjustment knobs Kick back link Arm post release lever G 70x Arm Arm post drag control Arm post Double action hinge Rod ends Socket Titanium springs Socket quick release pin Weight adjustment knob aka lift Upper arm section Adjustment knobs Forearm section Isoelastic adjustment screw aka ride ...

Page 3: ...e socket block varies greatly by the operator s body type If you have big pectorals and a flat stomach the top screw is almost all the way in If you ve been eating well and exercising less the top screw will be further out Always dial in the top screw first to your setting then turn in the bottom screw until it just snugs up against the fitting There is no need to tighten the bottom screw very har...

Page 4: ...arm segment is raised to its highest unloaded position so it is easiest to adjust before you pick up the sled It can also be adjusted when flying the sled by booming up fully The G 7x0 arm becomes progressively less iso elastic as the arm s lift is increased Heavier loads will require a counterclockwise adjustment of the Ride knob to obtain or maintain the desired iso elasticity Lighter loads will...

Page 5: ...lower than normally for shots with low boom heights with very little penalty in performance Minor changes in sled weight several lbs kg do not require adjustment of the ride knob Some operators prefer a more centered ride like a IIIA arm with a less than maximum load or a more centered ride when hard mounted on rough terrain Experiment and use the arm the way you like it Slightly raise or lower th...

Page 6: ...e pin can fit together in two ways The design intent is to kick back the upper arm segment as shown in the photos When kicked back the arm moves further out of the way while operating with the sled more in front of you or to the arm mounting side The parts need to be set one way for regular operating and the opposite way for goofy foot operating Goofy foot ...

Page 7: ...st but also reduce the iso for the forearm That way when raised the operator is lifting a little the torque is reduced correspondingly and the transferred torque is likewise reduced hence a smaller tendency for the upper arm section to go over centers Even with the iso dialed down the G 70x arm s response in the 50 degree range is more iso elastic than other arms position making the upper arm sect...

Page 8: ...t should be If you want a very high or low lens height get a light camera Remember a long arm post alters the height of all the components equally which may make viewing the monitor more difficult or annoying Check to see what works every situation is a little different The ability to quickly change arm posts or to adjust the height of the socket block on the vest and or to extend the sled compone...

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