Triax ASTM F1292 User Manual page 19

The factory installed steel cable is routed from the head of the tripod, along one of the legs and
into a hole in the top of the locking device. The cable then passes through the locking device and
out the bottom. To adjust the height of the head form, pull down on the part of the steel cable
below the locking device. Next, slowly lift the red handle on the locking device to free the cable.
When at the proper height, press down firmly on the red handle to lock the cable.
For additional drop height control, the position of the locking device on the leg section can be
adjusted by loosening the wing head screw on the back of the assembly and sliding the assembly
as required. Tighten the screw when complete.
In typical use, the missile will be removed from the lifting block and the lifting block lowered to
a convenient height. The missile will be attached to the lifting block and all persons moved to a
location safe from the fall path of the missile. While gripping the lift cable with a gloved hand, the
locking handle is raised allowing the lifting cable to be pulled, raising the missile to the desired
fall height. The locking handle is pressed down gripping the lifting cable and maintaining the
height of the missile. Standing to the side the surveyor's rod (supplied with every Triax E missile
system) is used to verify the height of the missile. Fine height adjust can be made by holding the
locking device while loosening the lock screw. The locking device can then be slid up or down
along the leg to adjust the missile height and the locking screw tightened.
WARNING: When the red locking handle is raised or the screw holding the locking device
are loosened the weight of the steel lifting block will cause the lifting cable to slide through
the locking devices, or the locking device to slide upward on the leg. The user must firmly
hold onto the cable, preferably with a gloved hand, before lifting the red handle or loosening
the locking device screws. If the steel lifting block is allowed to fall uncontrolled the sliding
of the steel cable through the user's unprotected hands could cause serious injury to the user.
Never allow anyone to stand under the tripod as the falling of the steel lifting block or the
head form could cause serious personal injury.
THE HEAD FORM CAN ALSO BE UNEXPECTEDLY RELEASED FROM THE
MAGNET DUE TO SHARP JOLTS DURING ADJUSTMENT.
5.3 Steel Lifting Block and Leg Clamp
At the end of the steel cable is the steel lifting block. This block gives the head form electromagnet
a surface to grip to before being released. As with the electromagnet the mating surface of the
lifting block must be kept free of rust and scratches.
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