MRMC MRMC-2165-00, Quick Start Manual, Page: 13 / 20

Broadcast Jib Arm Quick Start Guide
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ease it down by hand gently ensuring cable is wound cleanly from
the drum, and hold in the horizontal position below.
2. Remove any payload from the load plate and adjust the trim masses
until the arm is balanced very lightly on the lift cable – if you lift the
load plate it should hardly want to fall again. Ensure the trim mass
clamps are tightened securely and the masses can’t bounce against
each other.
3. Place the PTZ camera on the load platform. Move the Height (Jib
arm) up and down a few times on the rocker switch and ensure that
the height cable is running smoothly on the drum without snagging
or turning on itself.Winding down, then back up, should rectify
most issues.
The arm is now safe to operate.
Cable Adjustments
If the arm is noted to sway, and if you can feel slack in the cable fittings to
the O rings on each end, tension adjusters for each Side Tension cable can
be used. Adjust each one a little, keeping a balanced tension each side of
the arm, until the cables are snug against the O rings. Further tension will
not be helpful and may damage the boom. Avoid applying turns into the
cable itself: the adjusters have left and right hand threads each end and
both turn for the adjustment to take place.
Caution: If any cable is damaged and shows sharp ends or fraying,
stop using the equipment and cover cable damage for safety. Contact
MRMC for replacement parts.