Will Burt NIGHT SCAN VERTICAL User manual

Night Scan Vertical
Operating Instructions
The Will-Burt Company
401 Collins Blvd
Orrville, OH 44667, USA
Phone: [phone]
E-Mail: [e-mail]
Website: www.willburt.com
TP-4836201-G, March 2021
© 2021 The Will-Burt Company
Original Instructions
Authorized Representative:
Will-Burt Germany GmbH & Co. KG
Fischergasse 25
D-91344 Waischenfeld, Germany

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Warranty
Will-Burt warrants its Night Scan Vertical to be free from defects in material and workmanship for
a period of two (2) years, with such time period running from the date of shipment by Will-Burt.
Will-Burt shall not be responsible for any damage resulting to or caused by its products by reason
of failure to properly install, maintain or store the product; use of the product in a manner
inconsistent with its design; unauthorized service, alteration of products, neglect, abuse,
accident, or acts of God. This warranty does not extend to any component parts not
manufactured by Will-Burt; provided, however, Will-Burt’s warranty herein shall not limit any
warranties by manufacturers of component parts which extend to the buyer.
THE FOREGOING WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, AND NO
REPRESENTATIONS, GUARANTEES OR WARRANTIES, EXPRESS OR IMPLIED,
INCLUDING BUT NOT LIMITED TO, A WARRANTY OF MERCHANTABILITY, FITNESS FOR A
PARTICULAR PURPOSE, OR NONINFRINGEMENT ARE MADE BY WILL-BURT IN
CONNECTION WITH THE MANUFACTURE OR SALE OF ITS PRODUCTS. NO EMPLOYEE,
DISTRIBUTOR, OR REPRESENTATIVE IS AUTHORIZED TO CHANGE THIS WARRANTY IN
ANY WAY OR GRANT ANY OTHER WARRANTY ON BEHALF OF WILL-BURT.
Claims for defects in material and workmanship shall be made in writing to Will-Burt within thirty
(30) days of the discovery of defect. Failure to provide notice as required hereby shall be
conclusive evidence that the product was in conformity with the warranty, and Will-Burt shall be
released from any and all liability relating to the product. Will-Burt may either send a service
representative or have the product returned to its factory at Buyer's expense for inspection. If
judged by Will-Burt to be defective in material or workmanship, the product will be replaced or
repaired at the option of Will-Burt, free from all charges except authorized transportation.
THE REMEDIES OF BUYER SET FORTH HEREIN ARE EXCLUSIVE AND ARE IN LIEU OF
ALL OTHER REMEDIES. THE LIABILITY OF WILL-BURT WHETHER IN CONTRACT, TORT,
UNDER ANY WARRANTY, OR OTHERWISE, SHALL NOT EXTEND BEYOND ITS
OBLIGATION TO REPAIR OR REPLACE, AT ITS OPTION, ANY PRODUCT OR PART FOUND
BY WILL-BURT TO BE DEFECTIVE IN MATERIAL OR WORKMANSHIP. WILL-BURT SHALL
NOT BE LIABLE FOR COST OF INSTALLATION AND/OR REMOVAL, OR BE RESPONSIBLE
FOR DIRECT, INDIRECT, SPECIAL OR CONSEQUENTIAL DAMAGES OF ANY NATURE.

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Contents
1 Safety Summary................................................................................................... 5
1.1 Signal Word Definitions............................................................................................. 5
1.2 Safety Instructions .................................................................................................... 5
1.3 Symbols Used on Product Labels........................................................................... 10
2 Specification Compliance ................................................................................. 13
2.1 NFPA 1901-2016 .................................................................................................... 13
2.2 CE Declaration of Conformity ................................................................................. 13
3 Introduction........................................................................................................ 15
3.1 Additional Documentation ....................................................................................... 15
3.2 Intended Use........................................................................................................... 15
3.3 Mast Position Definition .......................................................................................... 16
3.4 Mast Component Descriptions................................................................................ 16
3.5 Remote Control Options ......................................................................................... 21
4 Technical Data.................................................................................................... 23
5 Installation.......................................................................................................... 25
5.1 Mounting Location Requirements ........................................................................... 25
5.1.1 Dimensions ................................................................................................... 26
5.2 Recommended Installation Tools............................................................................ 26
5.3 Unpacking & Handling ............................................................................................ 26
5.4 Attaching to the Vehicle .......................................................................................... 27
5.4.1 Attach Internal Mounting Kit.......................................................................... 28
5.4.2 Attach the Base Plate to the Mast................................................................. 30
5.4.3 Attach the Base Plate to the Vehicle............................................................. 30
5.4.4 Attach the Support Bracket .......................................................................... 31
5.4.5 Attach Optional Shelf Bracket ....................................................................... 32
5.4.6 Attach the RCP Saddle Brackets .................................................................. 34
5.5 Attaching the Control Box ....................................................................................... 36
5.6 Attaching the Air Connections................................................................................. 37
5.7 Attaching the RCP to the Mast................................................................................ 39
5.8 Installing the Magnetic Switches............................................................................. 40
5.9 Installing Remote Control........................................................................................ 41
5.9.1 Wired Hand-Held Remote Control (HHRC) .................................................. 41
5.9.2 Panel Mount Remote Control (PMRC).......................................................... 43
5.9.3 Wireless Remote Control .............................................................................. 44
5.10 Electrical Installation Detail ................................................................................... 44
5.10.1 Wiring Remote Control Cable to the Base Board ....................................... 45
5.10.2 Wiring Magnetic Switches to the Base Board ............................................. 45
5.10.3 Wiring DC Source Power to the Mast Control Circuit ................................. 45
5.10.4 Wiring Source Power to the Lighting Circuits.............................................. 46
5.10.5 Wiring Vehicle Safety Interconnect Circuit.................................................. 47
5.10.6 Wiring Optional Enable Circuit .................................................................... 48
5.10.7 Power-up and Magnetic Switch Adjustment ............................................... 48
5.10.8 Secure Wiring and Attach Control Box Lid.................................................. 48
5.11 Test the Installation............................................................................................... 49
6 Operation............................................................................................................ 51
6.1 Pre-Operation Check .............................................................................................. 51
6.2 Remote Control Functions ...................................................................................... 51

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6.3 Quick Operation Summary...................................................................................... 52
6.4 Initiating (Power-Up) ............................................................................................... 52
6.5 Extending the Mast ................................................................................................. 53
6.6 Controlling the Lights .............................................................................................. 53
6.7 Lowering the Mast................................................................................................... 53
6.8 Stowing the Mast .................................................................................................... 53
6.8.1 Using the Auto Stow® Feature ..................................................................... 54
6.8.2 Using the Mast Down Button ........................................................................ 54
6.8.3 Emergency Stow with Power ........................................................................ 55
6.8.4 Emergency Stow without Power ................................................................... 55
7 Maintenance, Adjustments and Disposal ........................................................ 57
7.1 Power Isolating Procedure...................................................................................... 57
7.2 Cleaning and Lubricating the System ..................................................................... 57
7.3 Spare Parts ............................................................................................................. 58
7.4 Periodic Inspections................................................................................................ 58
7.4.1 Adjusting the Mast Magnetic Switches ......................................................... 60
7.5 Adjusting the RCP Home Position .......................................................................... 60
7.5.1 Single-Tilt RCP Home Position Adjustment .................................................. 60
7.5.2 Dual-Tilt RCP Home Position Adjustment..................................................... 62
7.6 System Disposal ..................................................................................................... 64
8 Reference Information....................................................................................... 65
8.1 DIP Switch Definitions............................................................................................. 65
8.2 Strobe/Beacon Light ............................................................................................... 65
8.3 D-TEC® Sensor ...................................................................................................... 66
8.3.1 D-TEC® Sensor Location ............................................................................. 66
8.3.2 D-TEC® Functionality ................................................................................... 67
8.4 Nycoil® (Optional)................................................................................................... 69
8.5 Bulb Replacement................................................................................................... 70
8.6 The Will-Burt Company Mast Oil Safety Data Sheet .............................................. 77
9 Troubleshooting................................................................................................. 81
9.1 Troubleshooting Electrical....................................................................................... 81
9.2 Troubleshooting Mechanical Symptoms ................................................................. 89
10 Document History ............................................................................................ 91
11 Appendix........................................................................................................... 93
11.1 Automated Hatch Cover........................................................................................ 93
11.2 System Wiring Diagram ........................................................................................ 93

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1 Safety Summary
This section describes safety instructions for the Night Scan Vertical that personnel must
understand and apply throughout all product activities such as transportation, handling,
installation, operation, maintenance, storage, disposal and troubleshooting. Read and
understand this entire document, and contact The Will-Burt Company with any questions, before
performing any procedure outlined in this document. Keep this document during the entire
duration of use of the device. Pass this document along to trained and qualified end users.
1.1 Signal Word Definitions
The following signal words and definitions are used to indicate hazardous situations:
DANGER indicates an imminently hazardous situation that, if not avoided, will result in death or
serious injury.
WARNING indicates a potentially hazardous situation that, if not avoided, could result in death or
serious injury.
CAUTION indicates a potentially hazardous situation that, if not avoided, may result in minor or
moderate injury or equipment damage. It is also used to alert against unsafe practices.
1.2 Safety Instructions
Electrocution Hazard! Contact with high voltage will result in death or serious injury. Observe
general safety precautions for handling equipment using high voltage. Do not locate or operate
mast near electrical lines, cables or other unwanted sources of electricity. Allow sufficient
clearance on all sides of mast to allow for side sway. Do not operate mast during an electrical
storm. Be certain electrical cables are undamaged and properly terminated. Do not touch live
wires. Follow OSHA or other national safety regulations when working near energized power
lines. Personnel working with or near high voltages should be familiar with methods of
resuscitation.
Disconnect Power for Service! Always disconnect all power sources following proper lock-out
tag-out procedures before performing service, repair or test operations. Remove the tethered
hand held control where applicable for added protection during maintenance.
Mast Tip Over Hazard! Mast tip over could result in death or serious injury. Before operation, be
certain mounting structure is capable of resisting forces generated from all loading and

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environmental conditions, including, but not limited to, mast size and weight, payload and cable
size and weight, payload sail area, wind speed, guy line arrangement, support bracket or roof
line location, and base plate assembly. Do not operate in wind speed conditions exceeding the
maximum rated wind speed. Do not operate on slopes exceeding the maximum deployment
angle. Do not install a payload that exceeds the maximum payload lifting capacity of mast. Do not
install a payload with the center of gravity offset from mast centerline exceeding the maximum
allowed offset. Stand clear of mast and mast payload during operation. Be certain mast is level
and secure before and during installation, operation, and maintenance.
Falling Objects from Mast Hazard! Wear a protective hard hat when working on mast or
situated near mast operating area while mast is extending, retracting or deployed in any position
above the nested position. Improperly secured payload or mast components, ice formations, etc.
could be dislodged from mast and fall. Be sure the payload is properly installed and secured.
Relocation/Driving Hazard! Do not relocate the system during operation or while mast is
extended to any height above the nested position or powered up. Do not move vehicle until mast
has been securely nested and isolated from power. Power-up and operate mast only if the
vehicle is stationary and securely parked with the parking brake properly applied. Do not put
mast in service or operate without the vehicle interlock warning circuit or magnetic warning kit
installed to provide confirmation mast is nested prior to moving the vehicle. Contact The Will-Burt
Company Engineering for special on-the-move situations for military only use on specialized
products.
Burst Hazard! For pneumatically operated masts, do not operate without the over-pressure
safety valve installed. Keep personnel clear of safety valve exhaust direction. Do not exceed the
maximum rated pressure of mast. If the mast air pressure is not fully discharged prior to
removing air hoses, a rapid release of air pressure will occur requiring hearing and eye
protection.
Payload Lifting Hazard - Intended Use! The mast is intended to lift a specific payload for
lighting, surveillance or communication use only. Any other use without written consent is
prohibited and could cause death or serious injury. Do not use mast to lift personnel. Do not
exceed specified payload capacity. Large payload wind sail areas can reduce payload capacity.
Consult The Will-Burt Company engineering.
Read Operating Instructions! Read and observe the operating instructions. Non-observance of
the instructions, operation which is not in accordance with use as prescribed in the instructions,
wrong installation or incorrect handling can seriously affect the safety of operators and
machinery. Adhere to the safety instructions when carrying out any activity relating to the Night
Scan Vertical.
Trained Personnel Only! This product is intended for use by trained professionals only. It is not
intended for general use by the public or untrained personnel. Handling, installation, operation

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and maintenance to be performed by trained and authorized personnel only. Only a properly
trained and qualified certified electrician should perform electric installations and service.
Erratic Mast Operation Impact Hazard! The mast should operate smoothly during extension
and retraction. If erratic mast motion is observed during extension or retraction that results in
impact loading between the tube and the tube collar (mechanical travel stop), cease use of the
mast and contact The Will-Burt Company service department. Repeated operation with impact
loading can damage tubes and lead to mast separation.
Over-current Protection! Over-current protection or power switching by the installer on mast
incoming power supply as specified in this document should be a type suitable to allow lock-out
tag-out procedures for power disconnect.
Safety Instruction - Explosion! For outdoor use only. Do not use in explosive areas or areas
that have been classified as hazardous as defined in Article 500 of the National Electric Code or
equivalent national standards. Do not use in the presence of flammable gases or liquids such as
paint, gasoline or solvents. Do not use in areas of limited ventilation or where high ambient
temperatures are present.
Safety Equipment (PPE)! Proper personal protective equipment (PPE) like hard hats, gloves,
and safety shoes shall be properly worn while working on mast or near the deployment area of
mast. In addition, eye protection shall be worn during maintenance procedures. Follow national
PPE guidelines in your area of operation.
Pinch Point Hazard! Keep clear of all moving parts like mast collars nesting. Be sure to stay
clear of system during operation. Moving parts can crush and cut resulting in serious injury. The
mast shall be mounted out of reach of the operator during operation.
Crush Hazard - Mast Failure! Do not stand directly beneath mast or its payload. Be certain the
payload is properly installed and secured.
Entanglement Hazard! Tangled cables can cause equipment damage. Ensure payload cables,
Nycoil®, trip lines, guy lines or other cables are not tangled and are free to pay out as mast is
deployed. Cables that get tangled or snagged on mast or other objects can cause mast tubes to
lurch upward suddenly when the cable is freed. This can cause damage to mast and lead to mast
separation if repeatedly allowed to continue.
Health and Safety Hazard while Cleaning! Solvent used to clean parts is potentially
dangerous. Avoid inhalation of fumes and prolonged contact to skin.

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Fire Hazard Solvent! Cleaning solvent, used for maintenance, is flammable and can be
explosive. Do not smoke near solvent. Use cleaning solvent in a well-ventilated area. Keep
cleaning solvent away from ignition sources. Always store cleaning solvent in the proper marked
container and in a proper location.
Bright Light Radiation Hazard! For systems equipped with scene lighting or look-up lights, do
not look directly into lights when they are illuminated. Temporary impairment or permanent vision
damage could occur.
Personnel Freezing/Burn Hazard! Make sure the lights are completely cool before attempting
to clean the lens, replace bulbs or perform maintenance. Wear gloves to protect from contact
with exposed metal that may be at extremes of hot and cold temperatures from sun or cold
outdoor exposure.
Mast Extension Hazard - Obstruction! Extending mast into obstructions could result in death or
serious injury and could render mast inoperable and partially extended. Before applying power
and operating mast, be certain there is sufficient clearance above and to all sides of the expected
location of the fully extended mast and payload. Keep all persons clear of mast and mast
extension. Do not lean directly over mast. Locate the operator station such that the operator has
a clear view of the operating space of mast and payload prior to deployment to avoid contact with
overhead objects.
Manual Retraction! For powered masts, make sure all power sources have been disconnected
from the system prior to manually lowering mast to avoid unexpected start-up motion and/or
damage to mast.
Mast Lifting/Handling! Use extreme caution while lifting mast System and when mast System is
suspended to avoid injury and equipment damage. Be certain mast is properly secured using at
least two sling points at the center of gravity label. All operators should be aware of and follow
the applicable local, regional, and national standards and codes of practice for slinging and
transporting equipment. Never lift Mast System over people. Ensure lifting equipment including,
but not limited to, lifting straps and hoist, are capable of handling the forces generated from lifting
the system. Observe manufacturer instructions on lifting equipment.
Remove Payload! For mast systems shipped with no payload (customer installed payloads),
remove payload before performing maintenance on mast system. The Will-Burt Company
installed devices can remain installed.
Equipment Damage - Submerged! Do not submerge mast in liquid or operate the vehicle in a
fording situation that would result in a submerged mast.

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Safety Instruction - Potential Air Contaminants! If internally mounted in a vehicle, air from
mast and any accumulated water will discharge into the vehicle. Install appropriate drainage and
venting.
Fastener Vibration Hazard! Mast system and payload mounting hardware must include proper
means to resist vibration loosening such as thread-locking compound, locking hardware, or
equivalent. Use specified assembly torques appropriate for the fastener size.
Frozen Water Hazard! Water freezing inside mast may render mast inoperable and cause major
equipment damage such as tube deformation. Ensure water is free to exit at the base of mast.
Safety Instruction - Guy Anchors! For masts using Guy Lines, verify the Guy Anchor point
strength is adequate to support the Guy Line forces.
Lubrication! Do not lubricate the exterior of mast moving tubes. The lubricant will attract dust
and other environmental contaminants into mast.
Equipment Damage - Forces! Before unloading the system, be certain the unloading region is
capable of resisting forces generated from unloading the system including but not limited to
system weight. Ensure the unloading region is level and has sufficient room and strength to hold
the system. If the unloading region is incapable of meeting the requirements of the system,
damage to the system and/or unloading region could occur.
Equipment Damage - Support Bracket! For masts using an upper support bracket, do not
over-tighten mast support bracket. Over-tightening may damage the Base Tube causing mast
tubes to stick.
Mast and Payload Access! The operator must provide safe means to access mast and payload
during installation, removal and maintenance.
Tripping Hazard! Cables, trip lines, guy lines and guy anchors can be hard to see during and
after installation. Any equipment posing trip hazards should be clearly marked.
Emergency Stow! Using the emergency stow button causes the actuator to lower mast without
regard to any faults, switches, or system interlocks. It is totally up to the operator to ensure safe
operation during an emergency stow attempt. When using the emergency stow button, normal
operation switches are disabled. The mast can be overdriven into saddle and cause damage to
the unit. Disengage the emergency stow button when the payload reaches the saddle and is
tight. Do not drive mast beyond this position.

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Manual Tilt! If manually tilting mast, make sure all power has been disconnected from the sys-
tem prior to manually lowering mast to avoid unexpected motion and/or damaging mast compo-
nents.
Safety Instruction - Motion on Power Interruption or Emergency Stop! Mast uses a normally
open air control valve. If power is lost or turned off or the emergency stop is activated while mast
is extended, mast will begin releasing air pressure and retracting at a controlled rate until power
is restored or mast fully retracts. Masts that fold down will not initiate any tilt motion.
1.3 Symbols Used on Product Labels
The following symbols are displayed on the product. The symbol meanings are as follows:
This symbol indicates an electrocution hazard or hazardous voltage hazard.
There is voltage present inside mast and control box. Do not operate mast
near electrical lines or during electrical storms. Contact with high voltage will
result in death or serious injury.
This symbol indicates a pinch point hazard. Keep fingers and hands clear of
moving parts.
This symbol indicates a tip-over hazard. The mast must be properly
supported during transport, handling, installation, maintenance, operation and
decommissioning. System tip-over could result in death or serious injury.
This symbol indicates a general warning. In this unit, this symbol indicates a
frozen water hazard. Water must be permitted to exit mast to avoid ice
damage to mast.
This symbol is used to remind users to read and understand the operator's
manual before operating the mast system. Failure to follow operating
instructions could result in death or serious injury. Read and understand
operating instructions before handling, installing, operating, or maintaining the
mast system.
This symbol indicates an electrical ground connection point.

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This symbol is used to indicate the center of gravity (COG) of a fully nested
mast in a horizontal transport position.

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2 Specification Compliance
2.1 NFPA 1901-2016
The mast system is designed to be compliant with the following sections of National Fire
Protection Agency NPFA-1901-2016 Edition:
22.14 Powered Operated Light Masts
23.13 Power Operated Masts
2.2 CE Declaration of Conformity
Refer to the Product page at www.willburt.com for the latest Declaration of Conformity.

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3 Introduction
Thank you for selecting The Will-Burt Company for your critical payload elevation needs. These
operating instructions describe transporting, handling, installing, operating, maintaining, storing,
and troubleshooting procedures for the Night Scan Vertical Mast. These procedures assume the
use of standard mast systems. Procedures and characteristics for mast systems customized to
meet customer-specific needs may vary.
The Night Scan Vertical is a transportable lighting system that consists of a directionally
adjustable group of lights attached to a self-erecting, extensible mast. It may also serve as a
platform for communications antennae or a camera. Air pressure required to extend the mast is
provided by the vehicle air system or an optional compressor unit. The Night Scan Vertical is
designed for installation on any vehicle for the purpose of providing on-the-scene temporary
lighting and communications or surveillance. This manual covers both the single-tilt and dual-tilt
Vertical.
These operating instructions are intended for professionals who are qualified by their appropriate
training and experience to perform the procedures. Review this document in its entirety. Contact
The Will-Burt Company with any questions before performing any procedure outlined in this
manual.
The views depicted in this manual are provided for clarification and are subject to change without
notice. Views are not to scale.
The following models are covered in these operating instructions:
• Night Scan Vertical 4.3-15 (1.35-4.08 meters)
• Night Scan Vertical 5.4-17 (1.62-5.18 meters)
• Night Scan Vertical 6-20 (1.83-6.1 meters)
• Night Scan Vertical 7-25 (2.13-7.62 meters)
• Night Scan Vertical 8-30 (2.43-9.14 meters)
The Night Scan Vertical is available with many options installed by The Will-Burt Company, such
as different light fixture types and manufacturers, camera types and manufacturers, special
heights and optional strobe lighting.
3.1 Additional Documentation
In addition to this manual, your system ships with top-level drawings. These drawings can be
referenced during the installation process.
3.2 Intended Use
The Night Scan Vertical is intended for use by professionals in the fire/rescue/first responder/
security/towing industries to provide elevated and directional emergency scene lighting and
surveillance or communication capabilities. It is not intended for use by non-professionals. Do not
use the mast to lift personnel. The Night Scan Vertical is intended to be installed on fire/rescue/

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towing first responder vehicles with the vehicle interconnect safety circuit installed and
operational.
The Night Scan Vertical is intended to be used only when the vehicle is stationary and the vehicle
parking brake is properly applied. Do not supply input supply voltage or operate the mast system
when the vehicle is in motion. The mast shall remain in the powered-down, nested position
during vehicle motion.
3.3 Mast Position Definition
The mast is pneumatically moved by air pressure to the extended position. The following
positions (see Figure 3-1) are used throughout this manual:
•Stowed: the position in which the Remote-Controlled Positioner (RCP) is firmly seated in the
saddle. This position is sometimes referred to as the "nested" position.
•Extended: the partial or full raised position that the mast pneumatically raises to from the
stowed position. In the extended position, some or all of the mast sections have risen.
Figure 3-1 Mast Positions
3.4 Mast Component Descriptions
Figure 3-2 shows major components of the Night Scan Vertical system.
Stowed Extended

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Figure 3-2 Night Scan Vertical Stowed View
Mast: The mast consists of concentric tube sections that extend as air pressure is applied. The
mast contains a coiled cord in the center for power and data. Optionally, an external Nycoil® may
be included (not shown) for camera or other accessory cables. The bottom of the mast typically
connects to the base plate. The bottom of the mast also connects to the air source. The top of the
mast connects to the Remote-Controlled Positioner (RCP). Each tube and collar is protected by
low friction synthetic bearings for smooth operation and long life. Bumpers reduce shock on
extension and retraction. The exterior surfaces of the tubes are anodized and sealed for long life.
The fasteners are corrosion-resistant stainless steel.
The mast (Figure 3-3) contains:
• Tube sections
• Internal coil cord
Figure 3-3 Mast Components
Mounting Hardware: Your system may come with either internal or external mounting hardware.
Internal: The internal mounting kit (Figure 3-4) contains the brackets and seals used to position
and support an internally mounted mast. The kit includes a two-piece bracket, sealing gasket,
wear ring, and V-Seal. Bolts, lock washers and hex nuts, 1/4 inch or M6, not provided, can be
Optional Camera or Strobe Location
Light Bar
Mast
Lights
RCP RCP Saddle
Look-Up Light (top of RCP)
Data and Light Power Plugs
Internal Coil Cord
Tube Section Collars

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used to secure the assembly to the roof. Bolt length will depend on the specific application and is
to be determined by the installer.
Figure 3-4 Internal Mounting Kit
External: The external support bracket assembly (Figure 3-5) is a painted weldment that can be
bolted into a mounting structure and used to position and support an externally mounted mast.
Bolts, lock washers and hex nuts, 3/8 inch or M10 (not provided) can be used to secure the
support bracket to the support structure.
Figure 3-5 External Support Bracket Assembly
Non-Rotatable Base Plate: The vertical mast attaches to a 5" square non-rotatable base plate
(Figure 3-6). Countersunk holes in the non-rotatable base plate match threaded holes on the
bottom of the base mast section.
Figure 3-6 Base Plate
The base plate attaches to the mounting structure by screwing four bolts through the base plate
and mounting structure.