General Maintenance and Troubleshooting
2-4 SM 6495, Rev. 7, December 2008
5. Install cable grip conduit for gate arm lights cable, included with gate mechanism.
6. Install pedestrian gate arm adapter (P/N M46705801) on shaft, insert key into key way, and tighten
set screw in adapter.
7. Install 3’ aluminum sleeve, weight, and gate arm.
2.2.2. Pedestrian Gate Shield Installation
NOTE
Highway Crossing Gate Mechanisms manufactured after April 1, 2003,
are supplied with the pedestrian gate shield. For models manufactured
before this date, a shield kit (Part Number X46712202) can be ordered
from US&S to add to existing pedestrian gate mechanisms. The kit
includes the shield and necessary mounting hardware.
1. Lower the pedestrian gate arm to its horizontal position.
2. Disconnect electrical power from the gate mechanism and comply with all railroad/transit authority
procedures for maintenance lock out/tag out safety instructions. (See Section 3 for additional
details.)
3. Remove the four screws, washers, and nuts securing the pedestrian gate arm to the cast aluminum
adapter arm.
4. Position the shield on the side of the pedestrian gate arm opposite the gate mechanism. Insert four
(4) 3/8 x 3” screws (P/N J5073490148) and four lock washers (P/N J4751210113) provided with
the shield through the gate arm/adapter arm holes with the screw head towards the counterweight
arm. Install the flat washers (P/N J4751200114) and nuts (P/N J480218) on the screws.
5. Align the bottom of the shield with the bottom of the pedestrian gate arm and finger tighten the
fasteners.
6. Using the two holes on the far right of the shield as a guide, locate the corresponding holes in the
pedestrian gate arm and punch through the gate arm tape to open the holes.
7. Install two (2) screws, lock washers, flat washers, and nuts through these holes.
8. Tighten all screws.
9. The completed installation will be as shown in Figure 2-1. Return the gate mechanism into service.
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