TERION UM20-100111B, Руководство по установке, Страница: 25 / 78

7. Clean the best ground point, identified by performing the measurements in
Section 4.2, so that the ground strap terminal will contact clan, paint-free
metal. Cut the braided ground strap to length and crimp the correct ring
terminal to the strap. Remove the bolt found in Section 4.2. Place the
ground bolt through a star washer, followed by the ground strap terminal,
and then through another star washer. Put the assembly through the bolt
hole, and then add a flat washer and a self-locking nut. Apply conductive
(copper-colored) grease and tighten the nut.
8. Place a 9/16" grommet in the antenna guide hole in the upper support bracket.
9. Attach the upper support bracket to the tractor. Typically, the upper support attaches
to the tractor’s sun visor using an existing fastener. Position the upper support
bracket so that the antenna hole will align with the antenna base mount.
•
If you are using an existing bolt, remove the bolt. Place the bolt through a fender
washer, and then through the upper support. Peel the back off the foam tape and
reattach the bolt to the tractor.
•
If there is no existing bolt (or hole), drill a 1/4" hole in the sun visor and bolt the
upper support to it with a fender washer and 1/4" self-locking nut on the inside of
the visor.
Note: In the next option, the rivnut, 1/4" bolt, and fender washer are very
important. Do not try to simplify this step by using a sheet-metal screw.
•
On some trucks, there is no sun visor to install the upper support. In that case,
drill a 25/64" hole on the truck and install a 1/4" rivnut in the hole. Fasten the
upper support with a 1/4" bolt and a fender washer.
10. Place the rubber washer, and then the curved lock washer, on the stud mount bolt.
Note: It is ESSENTIAL that the curved lock washer be placed so that it
curves towards the rubber washer (refer to the illustration on page 4-7).
11. Place the stud mount assembly into the base mount bracket, put the star washer on the
stud mount shaft, and then thread the stud mount nut about half way up the shaft.
4-9
Mobile Messaging System Installation Manual June 15, 2001
UM20-100111B Terion, Inc.