Siemens SMART GATE S-80 User manual

PRINTED IN THE U.S.A.
QUICK START GUIDE
S-80 SMART GATE™ MECHANISM
NOVEMBER 2021
DOCUMENT NO. SIG-QG-21-01
VERSION A
Siemens Mobility, Inc.
2400 Nelson Miller Parkway
Louisville, KY 40223
1-800-626-2710
www.usa.siemens.com/rail-manuals
Copyright © 2021 Siemens Mobility, Inc.
All Rights Reserved

ii
SIG-QG-21-01 NOVEMBER 2021
Version: A
PROPRIETARY INFORMATION
The material contained herein constitutes proprietary and confidential information, and is the intellectual
property of Siemens Mobility, Inc., Rail Automation (Siemens) protected under United States patent,
copyright and/or other laws and international treaty provisions. This information and the software it
describes are for authorized use only, and may not be: (i) modified, translated, reverse engineered,
decompiled, disassembled or used to create derivative works; (ii) copied or reproduced for any reason
other than specific application needs; or (iii) rented, leased, lent, sublicensed, distributed, remarketed, or
in any way transferred; without the prior written authorization of Siemens. This proprietary notice and any
other associated labels may not be removed.
TRANSLATIONS
The manuals and product information of Siemens Mobility, Inc. are intended to be produced and read in
English. Any translation of the manuals and product information are unofficial and can be imprecise and
inaccurate in whole or in part. Siemens Mobility, Inc. does not warrant the accuracy, reliability, or
timeliness of any information contained in any translation of manual or product information from its
original official released version in English and shall not be liable for any losses caused by such reliance
on the accuracy, reliability, or timeliness of such information. Any person or entity that relies on
translated information does so at his or her own risk.
WARRANTY INFORMATION
Siemens Mobility, Inc. warranty policy is as stated in the current Terms and Conditions of Sale
document. Warranty adjustments will not be allowed for products or components which have been
subjected to abuse, alteration, improper handling or installation, or which have not been operated in
accordance with Seller's instructions. Alteration or removal of any serial number or identification mark
voids the warranty.
SALES AND SERVICE LOCATIONS
Technical assistance and sales information on Siemens Mobility, Inc. products may be obtained at the
following locations:
SIEMENS MOBILITY, INC. RAIL AUTOMATION
SIEMENS MOBILITY, INC. RAIL AUTOMATION
2400 NELSON MILLER PARKWAY
939 S. MAIN STREET
LOUISVILLE, KENTUCKY 40223
MARION, KENTUCKY 42064
TELEPHONE: [phone] TELEPHONE: [phone]
FAX:
[phone]
CUSTOMER SERVICE:
[phone]
SALES & SERVICE:
[phone]
TECHNICAL SUPPORT:
[phone]
WEB SITE:
USA Rail Automation Site
FAX:
[phone]
FCC RULES COMPLIANCE
The equipment covered in this manual has been tested and found to comply with the limits for Class A
digital devices, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference when the equipment is operated in a commercial environment.
This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in
accordance with the instruction manual, may cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause harmful interference in which case the
user will be required to correct the interference at his/her own expense.

iii
SIG-QG-21-01 NOVEMBER 2021
Version: A
DOCUMENT HISTORY
Version Release Date Sections Changed Details of Change
A NOV 2021 N/A Initial Release

iv
SIG-QG-21-01 NOVEMBER 2021
Version: A
Table of Contents
WARRANTY INFORMATION ..................................................................................................................... ii
NOTES, CAUTIONS, AND WARNINGS..................................................................................................... v
ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS ......................................................................... vi
SECTION 1 INTRODUCTION ............................................................................................................1-1
1.1 Standard Features and Options.................................................................................................1-2
1.2 Advancements...........................................................................................................................1-3
1.3 PC Control Board Overview.......................................................................................................1-4
1.4 Entrance Gate Specifications ....................................................................................................1-6
SECTION 2 ENTRANCE GATE .........................................................................................................2-1
2.1 Entrance Gate Components ......................................................................................................2-1
2.2 Basic Operation .........................................................................................................................2-1
2.3 Gear motor ................................................................................................................................2-2
2.4 Electric Brake ............................................................................................................................2-3
2.5 ADVANCED Electronic Motor Protection...................................................................................2-4
2.6 Bi-Directional Lock Bar (US Patent number 7,690,702) ............................................................2-4
2.7 Operating Mode Switch .............................................................................................................2-9
2.8 Over Speed Circuit ..................................................................................................................2-10
SECTION 3 INSTALLATION AND CONFIGURATION.......................................................................3-1
3.1 Internal Wiring ...........................................................................................................................3-1
SECTION 4 ENTRANCE GATE INSTALLATION AND SETUP .........................................................4-1
4.1 Recommended Wire Size Requirements...................................................................................4-1
4.2 Installation Procedure................................................................................................................4-2
SECTION 5 PROGRAMMING ............................................................................................................5-1
5.1 Description of User Interface .....................................................................................................5-1
5.2 Menu System Program ..............................................................................................................5-2
SECTION 6 ENTRANCE GATE MAINTENANCE ..............................................................................6-1
6.1 Tools..........................................................................................................................................6-1
6.2 Periodic Lubrication ...................................................................................................................6-1
6.3 Periodic Inspection ....................................................................................................................6-1
6.4 Placing Crossing in Service.......................................................................................................6-2
SECTION 7 TROUBLESHOOTING....................................................................................................7-1
SECTION 8 HARDWARE TORQUE GUIDELINES............................................................................8-1

v
SIG-QG-21-01 NOVEMBER 2021
Version: A
NOTES, CAUTIONS, AND WARNINGS
Throughout this manual, notes, cautions, and warnings are frequently used to direct the reader’s
attention to specific information. Use of the three terms is defined as follows:
WARNING
INDICATES A POTENTIALLY HAZARDOUS SITUATION WHICH, IF NOT
AVOIDED, COULD RESULT IN DEATH OR SERIOUS INJURY.
WARNINGS ALWAYS TAKE PRECEDENCE OVER NOTES, CAUTIONS,
AND ALL OTHER INFORMATION.
CAUTION
REFERS TO PROPER PROCEDURES OR PRACTICES WHICH IF NOT
STRICTLY OBSERVED, COULD RESULT IN A POTENTIALLY
HAZARDOUS SITUATION AND/OR POSSIBLE DAMAGE TO EQUIPMENT.
CAUTIONS TAKE PRECEDENCE OVER NOTES AND ALL OTHER
INFORMATION, EXCEPT WARNINGS.
NOTE
Generally used to highlight certain information relating to the topic under
discussion.
If there are any questions, contact Siemens Mobility, Inc. Application Engineering

vi
SIG-QG-21-01 NOVEMBER 2021
Version: A
ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS
Static electricity can damage electronic circuitry, particularly low voltage components such as the
integrated circuits commonly used throughout the electronics industry. Therefore, procedures have been
adopted industry-wide which make it possible to avoid the sometimes invisible damage caused by
electrostatic discharge (ESD) during the handling, shipping, and storage of electronic modules and
components. Siemens Mobility, Inc. has instituted these practices at its manufacturing facility and
encourages its customers to adopt them as well to lessen the likelihood of equipment damage in the field
due to ESD. Some of the basic protective practices include the following:
•Handle circuit boards by the edges only.
•Never physically touch circuit board or connector contact fingers or allow these fingers to come in
contact with an insulator (e.g., plastic, rubber, etc.).
•Cover workbench surfaces used for repair of electronic equipment with static dissipative
workbench matting.
•Utilize only anti-static cushioning material in equipment shipping and storage containers.

INTRODUCTION
1-1
SIG-QG-21-01 NOVEMBER 2021
Version: A
SECTION 1 INTRODUCTION
1.0 INTRODUCTION
This manual provides general information to allow users to get started with the S-80 Smart Gate™
mechanism (S-80), including instructions for installation, maintenance, operation, and troubleshooting of
the unit. This information is essential to ensure proper system operation and problem diagnosis. It is
recommended that each system operator and maintainer become familiar with the information provided
herein before attempting to program, calibrate, or troubleshoot the S-80.
Figure 1-1 S-80 Smart Gate Mechanism

INTRODUCTION
1-2
SIG-QG-21-01 NOVEMBER 2021
Version: A
1.1 STANDARD FEATURES AND OPTIONS
The following figure provides an overview of the standard features and options of the S-80 Smart Gate™
mechanism.
Figure 1-2 S-80 Smart Gate™ Mechanism Product Features Overview
1.1.1 Maintenance-Free Brushless DC Motor
The S-80 incorporates advanced control and performance monitoring (Hall sensor feedback) and has no
brushes to maintain. This allows for a longer motor life expectancy.
1.1.2 Advanced Digital Motor Technology
The S-80 uses a brushless DC motor with advanced motor control that provides smoother gate
operation. The advanced motor control in the S-80 controls the gate arm movement with a soft start and
soft stop, eliminating the recoil shock to the gate’s drive train from the “whipping” action of the gate arm.
This dramatically reduces the wear on the bearings, gears, motor, and electric brake. Also, the reduced
whipping action of the arm reduces wear on the affiliated gate arm hardware and breakaway gate arm
protection devices. This significantly improves the overall life expectancy of the mechanism.
The gate arm is fully powered throughout the ascend and descend cycles and only snubbed when
descending under a loss of power condition. The S-80 has an Arm Retention feature that can be enabled
during the programming sequence. When enabled, it eliminates the possibility of pedestrians manually
lifting the gate arm, from the lowered position.
1.1.3 Low Maintenance Drive Train
The low maintenance drive train includes forged and hardened drive train gears with a service life of one
million operations with periodic lubrication. Refer to Section 6.2 for periodic gear lubrication
recommendations.

INTRODUCTION
1-3
SIG-QG-21-01 NOVEMBER 2021
Version: A
1.1.4 Fully Programmable Operation via LCD Display
The S-80 is fully programmable and incorporates a backlit 2 x 16 character display allowing the user to
configure:
•The vertical gate position (88-degree maximum vertical limit).
•Gate arm ascent and descent times (limited to AREMA recommended ranges)
•Six contact settings to be open or closed in the horizontal position and at what degree the
contact is to change state (for example the gate down (GD) contact would be programmed
to be closed in the horizontal position (0 degrees) and then programmed to open at 5
degrees).
•Gate arm retention (enabled or disabled).
•Gate arm length (required for diagnostic capability).
1.1.5 Automated Counterweight Assistant
The automated counterweight assistant (available as part of the Digitalization Package upgrade) helps to
prevent improper adjustment and installation on gates. Once the gate arm length is entered
(programmed) into the gate control board and the preliminary install is complete, the gate is run through
a calibration sequence. This provides step-by-step instructions on how to adjust counterweights, which
ensures optimum adjustment of horizontal and vertical torques.
WARNING
NO GATE SHOULD EVER BE INSTALLED AND NOT PROPERLY
ADJUSTED.
SIEMENS ASSUMES NO LIABILITY FOR IMPROPER INSTALLATION,
MAINTENANCE, OR OPERATION.
1.2 ADVANCEMENTS
1.2.1 Fully programmable Digital Contacts
There are no mechanical cams and contacts to be adjusted in the S-80. These have been replaced with
six fully programmable digital contacts that are based on Siemens’ I/O circuit technology.
There are provisions for six (6) digital contacts that can be used for bell operation, gate position detection
(GP), traffic preemption interfaces, etc. These can be configured to be open or closed in the horizontal
position and programmed to change state, from 1 to 88 degrees, in 1-degree increments.
1.2.2 Operating Mode Switch
This replaces the Gold Nut test link configuration used in previous models. The toggle switch enables the
gate to be put into Maintenance mode, to manually power down the gate in the event of a broken gate
arm, using the Motor Down push button.

INTRODUCTION
1-4
SIG-QG-21-01 NOVEMBER 2021
Version: A
1.2.3 Gate Arm Loop Detection System
The Gate Arm Loop Detection system employs a thin gauge wire loop running down the length of the
gate arm. The controller monitors the gate arm loop wire as a series circuit. The series loop will break
when a gate arm is broken, providing indication of a malfunctioning system. Alarms can be sent via the
serial link to notify maintenance personnel remotely.
1.2.4 Door Switch
The Door Switch connection has been designed for future enhanced features and currently has a jumper
on the connector to close the door switch circuit. Removing the jumper will turn off the display backlight
and some of the LED indications. Removing the jumper will not have any adverse effect on the normal
operation of the mechanism.
1.3 PC CONTROL BOARD OVERVIEW
The S-80 PC Control Board is plug coupled to minimize wire disarrangement when replacing
components. The control board has an array of diagnostic LEDs to monitor the condition of the
mechanism, minimizing the need for a multi-meter when troubleshooting.
In addition, the Mini Track Side Sensor (MTSS) technology is built into the S-80 control board so there is
no need for an additional MTSS daughter card to enable this functionality.
The S-80 is designed to run on both 12 and 24 Volt DC systems and therefore operates over a wide
voltage range from 9 to 36 VDC. There is no longer a need for an additional DC-to-DC converter to apply
the gate to 24 VDC systems.
The control board is detailed in the following figure.

INTRODUCTION
1-5
SIG-QG-21-01 NOVEMBER 2021
Version: A
BATTERY
B12N12
L1 L2
F
U
S
E
30A
+
+
+
Power
Health
Gate Control
Brake On
Overload
Moto r Up
Motor Down
Gate Up
Gate Down
Bell Sensor
Gate Tip Sensor
Enter
Exit Next Previous
Motor Down
Operating Mode must be in
Maintenance to drive Gate
down with Motor Down
Operating Mode
Maintenance
Normal
CONTACTS
4H 4F 5H 5F 6H 6F
1F1H 2F2H
G
D
20A
3F3H
123 4 5 6
F
U
S
E
20A
F
U
S
E
20A
F
U
S
E
20A
F
U
S
E
20A
F
U
S
E
F
U
S
E
L
A
M
P
20A
BRAKE
S
S80 GATE MECHANISM
SIEM ENS S 80
ENT RAN CE G A TE
Made in USA
B
E
L
L
GC MTSS
Data
+
-
1 2
Arm
Loop
1 2
DIGI
DATA
+
+
MOTOR
Figure 1-3 S-80 Front Panel
1.3.1 Backlit 2 x 16 LCD display
The display includes the following buttons to allow for programming: Enter, Exit, Next, and Previous. The
programming functionality is similar to Siemens’ Solid-State Crossing Controller (SSCC) logic.
1.3.2 Fully Programmable Operation
The user can program the gate arm ascend and descend times, define the vertical gate arm position
(from 70 to 88 degrees), program the functionality of the six (6) digital contacts and enable/disable the
Gate Arm Retention feature.

INTRODUCTION
1-6
SIG-QG-21-01 NOVEMBER 2021
Version: A
1.3.3 LED Diagnostics
The Control Board includes status LED’s for all major gate functions:
•Power
•Health
•Gate Control
•Brake On
•Overload
•Motor Up
•Motor Down
•Gate Up
•Gate Down
•Bell Sensor
•Gate Tip Sensor
1.4 ENTRANCE GATE SPECIFICATIONS
Component Specification
Housing and Cover Cast Aluminum
Gear Train 33:1 Reduction (Gear motor output to main shaft)
Bearings Maintenance-Free Sealed – both main and gear shafts
Gearmotor Maintenance-Free 12 Volt Brushless DC
Gate Control (GC) Current in Vertical Position 615 mA @ 12 VDC
Operating Voltage 12 and 24 VDC Nominal (9 to 36 VDC at the mechanism)
Operating Current 6 to 15 A @ 12 VDC (current varies with gate arm length)
Battery Current in Vertical Position 775 mA @ 12 VDC
Weight 110 pounds (mechanism only)

ENTRANCE GATE
2-1
SIG-QG-21-01 NOVEMBER 2021
Version: A
SECTION 2 ENTRANCE GATE
2.0 ENTRANCE GATE
2.1 ENTRANCE GATE COMPONENTS
The following figure displays the components of the Entrance Gate mechanism.
Figure 2-1 S-80 Entrance Gate Mechanism Components
2.2 BASIC OPERATION
Battery power is continuously applied to supply power to the motor and PC board. An
independent "Gate Control" (GC) input is used to operate the gate arm. External switching of
the GC input is required by the user. When the GC input is energized, the gate arm rises from
the horizontal to the vertical position and is then held in the clear position by the electric brake.
When the GC input is deenergized, the electric brake releases and then the arm is driven from
the vertical to the horizontal position. Unlike previous S-type gates, the S-80 drives the gate arm
down from the full vertical to the full horizontal position. Snubbing is only used to control the
gate arm descent in the event of a power loss. A Motor Down pushbutton is provided to use in
Main Control Board
Programmable
Display
Programmable
Contacts
Electric Brake
Brushless DC
Gear Motor
Terminal Board
Main Shaft

ENTRANCE GATE
2-2
SIG-QG-21-01 NOVEMBER 2021
Version: A
conjunction with the Operating Mode switch, for powering down then mechanism when the gate
arm is broken.
The ascend and descend times are fully programmable. The vertical or clear position of the gate
arm is also programmable and can be set between 70 and 88 degrees. The maximum vertical
limit of 88 degrees is intentional to prevent the gate arm from interfering with high wind guards
and to the prevent the gate arm lights from hitting the main mast. The horizonal or “zero degree”
position is automatically set via the S-80 software once the gate arm is installed and the
horizontal buffer is adjusted to set the gate arm height at the necessary distance above the
roadway and then power is applied to the mechanism.
CAUTION
DO NOT APPLY POWER TO THE S-80 UNTIL AFTER THE GATE
ARM HAS BEEN INSTALLED, AND THE HORIZONTAL BUFFER
HAS BEEN ADJUSTED, SO THAT THE GATE ARM IS LEVEL AND
SET TO THE PROPER VERTICAL DISTANCE ABOVE THE
ROADWAY.
DOING SO WILL INCORRECTLY SET THE HORIZONTAL (ZERO
DEGREE) REFERENCE POSITION.
The positive and negative battery and GC inputs on the PCB are reverse polarity protected.
Improper application of polarity will not damage the unit.
2.3 GEAR MOTOR
The gear motor in the S-80 mechanism is a factory sealed, line replaceable unit. No lubrication of
the internal gear mechanism is required.
The gear motor has a plug coupled harness so there is no disarrangement of wires required to
replace the unit. Because the S-80 gear motor is a brushless DC type, no periodic maintenance
is required throughout the lifetime of the gear motor.
WARNING
DO NOT UNPL
UG THE MOTOR CONNECTOR FROM THE PCB
WITH THE GATE IN THE VERTICAL POSITION UNLESS THE
LOCK BAR IS IN PLACE TO RESTRICT DOWNWARD MOVEMENT.
WITHOUT THE LOCK BAR IN PLACE, THE GATE ARM WILL FALL
IN AN UNCONTROLLED MANNER IF GC IS REMOVED OR THE
BRAKE CONNECTOR IS UNPLUGGED.

ENTRANCE GATE
2-3
SIG-QG-21-01 NOVEMBER 2021
Version: A
2.4 ELECTRIC BRAKE
The electric brake is a two-piece unit consisting of an Armature Plate assembly and a Brake
Housing. The Brake Housing is mounted directly to the motor end bell and the Armature Plate
assembly is fastened to the motor shaft via a set screw in the assembly collar. An air gap of 0.015”
minimum, 0.020” maximum must be maintained, between the Armature Plate Assembly and the
Brake Housing, to ensure proper operation of the brake. The air gap is factory set to 0.015” and
will very gradually increase as the brake wears. The brake should be inspected periodically to
ensure the air gap is maintained. If an air gap adjustment is necessary, remove the set screw
using a 2.5 mm Allen wrench and apply a single drop of Loctite® 243 to the threads and reinsert
it loosely into the collar. Set the air gap to between 0.015” and 0.020”, using Siemens’ brake
adjustment shims (part number NYK:074070-C and NYK:074070-D) or two automotive feeler
gauges (one on either side of the motor shaft) and fully tighten the set screw in the collar. Refer
to the following figure.
Figure 2-2 Electric Brake Detail
Use a 2.5mm Allen wrench
to remove and apply a single
drop of Loctite 243 applied
to set screw threads.
0.015” min.
0.020” max.
air gap.

ENTRANCE GATE
2-4
SIG-QG-21-01 NOVEMBER 2021
Version: A
WARNING
ALWAYS ENSURE A MINIMUM BRAKE AIR GAP OF 0.015”.
IF ADJUSTMENT OF THE BRAKE AIR GAP IS REQUIRED, ENSURE
THAT LOCTITE®243 IS
REAPPLIED TO THE BRAKE COLLAR SET
SCREW.
REMOVE THE SET SCREW AND ONLY APPLY A SINGLE DROP OF
LOCTITE®243 DIRECTLY ONTO THE SET SCREW THREADS.
DO NOT POUR LOCTITE®IN THE SET SCREW THREADED HOLES.
DO NOT ALLOW ANY LOCTITE®
OR ANY OTHER TYPE OF
CONTAMINANTS (SOLVENTS, LUBRICANTS, ETC.)
TO COME IN
CONTACT WITH THE FRICTION SURFACES OF THE BRAKE.
2.5 ADVANCED ELECTRONIC MOTOR PROTECTION
The advanced motor controls of the S-80 are designed to protect both the motor and the PC
board in a stalled motor condition. This is achieved using the following procedure:
•During gate arm movements, when maximum motor torque is applied and the expected
corresponding gate arm movement is not detected, the S-80 automatically reduces the
driving torque on the motor and returns to the previous position.
•After a 10 second wait period, the S-80 attempts to drive the arm to the position
indicated by the Gate Control.
•If the obstruction persists, the 10 second wait period is repeated for a second and third
time.
•If the obstruction persists on the fourth attempt to move the gate arm, the wait period is
extended to one minute intervals, and attempts to move the gate arm to the position
indicated by the Gate Control will continue until the obstruction is removed.
2.6 BI-DIRECTIONAL LOCK BAR (US PATENT NUMBER 7,690,702)
The S-80 is equipped with a Bi-Directional Lock Bar used to lock the mechanism at any angle,
in either direction, for maintenance purposes.
WARNING
DUE TO DRIVE TRAIN CHANGES IN THE S-80, THE S-80 LOCK BAR IS
LONGER THAN THE S-
60 LOCK BAR AND DESIGNED TO HOLD
HIGHER DRIVE TRAIN TORQUE LEVELS.
DO NOT USE THE LOCK BAR PROVIDED WITH THE S-60 ON S-80
MECHANISMS.
The bar is placed over the Reaction Pin on the Motor Adapter Plate and the Hex portion of the
Motor Pinion Gear Shaft. Proper orientation of the bar is required to restrict upward or

ENTRANCE GATE
2-5
SIG-QG-21-01 NOVEMBER 2021
Version: A
downward movement of the mechanism. The cover cannot be closed with the lock bar in place
due to the length of the handle.
CAUTION
THE LOCK BAR IS MARKED WITH A “KEEP UP” DESIGNATION
ON ONE SIDE AND A “KEEP DOWN” DESIGNATION ON THE
OPPOSITE SIDE.
TO ACHIEVE THE DESIRED FUNCTIONALITY, MAKE SURE THE
KEEP UP OR KEEP DOWN MARKINGS ARE FACING TOWARD
THE MOTOR WHEN BEING INSTALLED AND NOT TOWARD THE
EXTERIOR OF THE GATE MECHANISM.
Under certain conditions, it may be difficult to remove the lock bar if it is under pressure.
It may be necessary to use a 5/16” wrench on the brake end of the motor hex to relieve the
pressure of the lock bar against the reaction pin.
CAUTION
APPLY MINIMAL FORCE IN THE PROPER DIRECTION TO AVOID
DAMAGE TO THE DRIVE TRAIN.
Refer to the following illustrations.

ENTRANCE GATE
2-6
SIG-QG-21-01 NOVEMBER 2021
Version: A
Figure 2-3 Bi-Directional Lock Bar Storage
Brake
Motor Shaft Hex
(5/16”)
Lock Bar Storage

ENTRANCE GATE
2-7
SIG-QG-21-01 NOVEMBER 2021
Version: A
Figure 2-4 Bi-Directional Lock Bar – Right Side View
Bi-Directional Lock Bar
Clutch Bearing
Motor Shaft Hex
Reaction Pin

ENTRANCE GATE
2-8
SIG-QG-21-01 NOVEMBER 2021
Version: A
Figure 2-5 Bi-Directional Lock Bar Illustration – Left Side View
WARNING
IMPROPER ORIENTATION OF THE LOCK BAR IN THE “KEEP UP” OR
“KEEP DOWN” POSITION DURING MAINTENANCE ACTIVITIES
COULD RESULT IN PERSONAL INJURY AND/OR CAUSE DAMAGE TO
THE MECHANISM.
REFER TO FIGURE 2-5 TO DETERMINE THE PROPER ORIENTATION
OF THE LOCK BAR TO HOLD THE GATE IN THE DESIRED POSITION.
Bi-Directional
Lock Bar
Reaction Pin
Lock Bar Orientation Marking
- in this position it will “Keep
Up” the gate arm.