Condux Gulfstream 200 Micro Fiber Blower - Manual (Page 13)

13
6.
Crash Test
Cable Crash Testing is a very quick and easy step to be completed before attempting
the installation of cable with the Gulfstream 200. This test is necessary to set the
electronic push force control of the motor below the point that it may cause cable
damage as a result of over pushing or encountering an obstruction in the
sub-duct system.
Every cable has different pushing values and these values vary depending on
duct I.D. Example: A cable with a crash test value of 75 bar in 33 mm I.D. duct,
may have a crash value of only 60 bar in a 40 mm I.D. duct. This is because the
area of lateral movement is larger as the duct size increases.
!CAuTIoN: Always wear protective equipment: hard hat, safety glasses, safety
shoes and work gloves.
NoTE: The electronic push force adjustment will have little effect on the installation
speed of the blowing unit. This is an adjustment to prevent damage to the cable that
can be caused by excessive pushing force.
ImPoRTANT: For the Crash Test to work properly use the same size cable and duct
that will be used for the job.
Set the electronic push force adjustment on the Gulfstream 200 using the following
procedure:
a. Attach 12' (4 m) of duct to the Gulfstream 200 with 15' (5 m) of fiber optic cable
(See figures 3-8) using the appropriate duct pack and cable seal.
b. Set the adjustable push force to about half way of the maximum.
c. Install Conduit Pulling Eye or place your thumb or finger over the receiving end
of the duct.
d. Push cable through the duct until it stops against the Pulling Eye
e. Place a mark on the Cable about 1" (25 mm) behind the Rear guide
f. From the Rear guide, pull out approximately 8' (2.4 m) of cable from the blower
g. Lower the Tractor Drive
h. Turn on the tractor drive and allow cable to move until it stops. Note the push
force setting.
i. Increase push force slightly
j. Repeat steps f through i until the cable folds over or you reach maximum push
force setting. If the tractor drive belt is slipping on the cable, tighten the tractor
drive down screw and repeat steps f through i. You will notice cable fold-over
because the line drawn on the cable will disappear inside the machine or duct
k. Reduce push force slightly if cable fold-over has occurred and test once more
to ensure no fiber fold-over or damage occurs at this setting. This will be
maximum push force setting for this application
l. Reset the speed to the minimum and remove test fiber and duct
m. Test complete