User manual

Barrett Technology, Inc.
BA4-310 System User Manual Version 1.1
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Figure 13 - Patented Cable Tensioner
4.3 Making Replacement Cables
Pre-made cables can be ordered from Barrett Technology, Inc. Should the user desire to make
their own cables, cable stock, terminations, and tools may also be purchased. However, Barrett
Technology cannot be held liable for reduced performance limits of the BarrettArm due to
installation of cables not pre-made and tested by Barrett.
It is essential that only the recommended cables be used. Using any other cable types or sizes
from any other manufacturers will void all Barrett warranties. Length tolerances are ± 9mm for
all cables (unless otherwise noted), and proof loading with terminations to 60 percent of the
cable breaking strength is recommended. Barrett recommends keeping a spare set of cables on-
hand to avoid maintenance delays.
Table 6 indicates the cable type, length, termination type, and installation location for each of
the 20 cables employed for the four cabled motor drives and the cabled differential in the
BarrettArm. The lengths given are for the free cable measured between the brass termination
lugs. Detailed specifications for each cable type are given in Table 7.