Arm Set-up Manual
©
2011, Equipois Inc.
14 of 32
All rights reserved.
101-9110 Rev E
Figure 7 Lift adjusting knob and the
Rate knob behind it
Figure 8 Link in position to adjust
lift
Adjusting the lift
Lift is the force that the links of the arm exert to resist the pull of gravity on the tool.
The goal in this section is to adjust the lift so the tool floats in the work area with the
links almost level. Some operators prefer to set the links at a higher angle, to help with
a high average working height, or to assist in keeping the tool engaged with the work,
for example, to push a drive-tool upward on a nut or to press a grinder against a sur-
face.
•
The distal link is the forearm, the link that holds the tool.
•
The proximal link is the upper arm. It can be a static link, which provides horizon-
tal reach but cannot be swung up and down, and which is not adjustable.
1.
With the payload in place, extend the arm.
2.
Move the payload so that the spring of the distal link is perpendicular to the adjust-
ing mechanism. The link should be slanting at about 5° above level and the Lift
knob should turn easily. See Figure 7 and Figure 8.
3.
Turn the Lift knob until the link balances at the 5° slant:
a.
Turn the knob clockwise to
increase
lift, if you lifted the payload.
b.
Turn the knob counterclockwise to
decrease
lift, if you pulled the payload down.
4.
In the same way, adjust the proximal link so it balances at the 5° slant.
5.
When the links are adjusted, carefully move the tool up and down to the full extent
of its range. The links should track smoothly as you move the tool up and down.
As you perform this step, a link may lock in the full up or down position. This can
happen when the link is adjusted for a heavy payload. You address this problem
in the next section
6.
Hold the arm pointed toward the work area and without letting go completely, let
it move freely. Repeat these adjustments until the arm’s rest position is where you
want it.
a.
If the arm drifts consistently to one side, move the resting position toward the
center by adjusting the pitch down and the roll away from the direction of drift.
Static link
