Transcript PPS - SBCA

ODU Mounting
1
Introduction
This module instructs you on the proper
DIRECTV ODU mounting procedures
2
Objectives
Upon completion of this module you
should be able to:
• Select stable mounting surfaces
• Mount the ODU to:
– Wood walls
– Brick or masonry walls
– Roof with asphalt shingles
– Poles
– Non-pens
• Level the mast
3
Service Calls and
Mounting
• On average, only 64% of the DIRECTV mounting
installations are correct
• There are over $500,000 in customer damage
claims each year from improper installations
Take a moment and
consider… If you were a
customer and within days
after installation you had
problems would you be
upset?
4
The Mount
Think of the mounting of the ODU as
the heart beat of the system
Lack of signal renders the system
useless
5
Acceptable Mounting
Surfaces







Wall
Concrete
Brick
Cinder block
Roof
Pole
Non-pen
6
Other Mounting
Surfaces
 Stucco
Stucco is a surface that can be easily
damaged unless proper steps are
followed
 Chimney
The KaKu Clamp mount, STube mount and Pole mount
are suggested alternatives to
direct stucco mounting.
A chimney is a structure that can be
easily damaged unless proper steps
are followed
7
The Customer’s Role in
Mounting
Before starting
any work, review
the proposed
mounting location
with the customer
Be cautious of any roof overhangs that may block signal
8
Residential Construction
9
Wall / Roof Anatomy
10
Mounting Surfaces to
Avoid
Wall Specifics:
Dry rotted siding
Vinyl siding
Aluminum siding
Fiberglass
11
Mounting Surfaces to
Avoid
Roof Specifics:
Shake shingles
Concrete or clay tiles
Metal
12
Tools and Accessories
Needed for Mounting
• Stud-finder
• Tape measure
• Pencil
• Torpedo bubble level
• Drill
– Back-up drill and batteries
– Drill bits: wood, metal and masonry
13
Tools and Accessories
Needed for Mounting
• Silicone sealer
• Black Jack roof sealant
• Bishop tape
How would you feel if you
took your vehicle to a
mechanic for repairs and
he/she did not have tools to
do the work - would you
trust that person to do a
good job?
14
Mounting to a Wall
Steps required to mount the ODU to a wall:
– 1st - Locate the proper location for the ODU
– 2nd - Locate the center of the stud
– 3rd - Mark the location
– 4th - Pre-drill
– 5th - Fill with silicone sealer
– 6th - Mount foot plate
– 7th - Level foot plate
– 8th - Install the remaining lag bolts
– 9th - Level the mast
15
Step 1: Proper
Mounting Location
Find the best mounting location for the
ODU that provides no obstructions to a
clear line-of-sight
16
Step 2: Locate the
Center Stud
Locate the center of the stud using
either of the following methods:
• Stud-finder
• Locate nail heads
17
Stud-finder
Calibrate the stud-finder
DO NOT rock or lift the scanner
from the scanning surface, or
start moving the scanner
before it has calibrated
18
Stud-finder
After the scanner is set securely on the
surface and it has been calibrated, slide it
horizontally without lifting or rocking it.
19
Stud-finder
To scan for metal place the scanner
against the surface and begin to slide the
scanner either horizontally or vertically
20
Stud-finder
Once you’ve found
an edge, mark the
wall with a pencil
along the “stud
edge grooves” on
the scanner
21
Stud-finder
Move the stud-finder in
the opposite direction
to mark the other edge
of the stud
Between the two lines is
the center of the stud
22
Stud-finder
Now you have located
the center of the stud
23
Stud-finder
While working near
electrical wiring, use
your personal
observations and
critical thinking skills!
Don’t just let the
scanner do the work!
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Nail Head Location
• Studs are on
16” centers
• Nail heads
can be used
to locate the
center of the
stud
16"
16"
16"
Centers
Centers
Centers
Nail Head
16"
Centers
25
Nail Head Location
• In this picture
you can see
the nail head
under the
paint
• The installer
marked below
the nail head
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Wall Mounting
Wall Mounting: Wood
• Solid, smooth and clean
• Lap siding will require a wooden
spacer or shim
Stud
Spacer
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Step 3: Mark the
Location
• Place foot plate
base on surface
• Using a pencil,
mark the top
center hole
16"
16"
16"
Centers
Centers
Centers
Nail Head
16"
Centers
• Make sure that
the mark is in the
center of the
stud
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Step 4: Pre-Drill
• Pre-drilling
ensures you hit
the wall stud
• Just driving a
5/16” lag bolt may
split the wall stud
Pull drill bit out frequently
to clean wood shavings
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Drill Bit Selection
• Use a high
quality drill bit
• For wood use a
wood / metal
twist bit
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Pre-drilling Wood
3” Lag
2 ½”
Drill ½-inch shorter than the lag screw
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Step 5: Silicone Sealer
Fill the drilled hole with
silicone sealer
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Step 6: Mount the Foot
Plate
• Place base on surface
• Start 5/16” lag bolt in top
center pre-drilled hole
5/16” x 3” in top
center hole
33
Step 6: Mount the Foot
Plate
3” Lag
Leave the center top lag bolt loose
so the foot plate can be leveled
34
Step 7: Level the Foot
Plate
Use a torpedo
level to ensure
that the foot
plate is level
and plumb
35
Step 8: Install
Remaining Lag Bolts
• Mark the remaining 5
holes
• Drill a 7/32” pilot in the
remaining (5 holes)
• Fill remaining 5 holes
with silicone
• Install 5 remaining 5/16”
lag bolts
• Tighten and Torque all 6
lag bolts
36
Step 9: Mast Leveling
• Level the mast
• Use the torpedo
level or the mast
tube bubble level
• Tighten the mast
bolts down
Mast Tube Bubble Level
37
Wall Mount Activity
Review
• 1st - Proper location for the ODU
• 2nd - Locate the center of the stud using a
stud finder or nail head method
• 3rd - Mark the location
• 4th - Pre-Drill
• 5th - Silicone Sealer
• 6th - Mount Foot Plate
• 7th - Level Foot Plate
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Wall Mount Activity
Hands-on Demonstration
• One volunteer
• Use a stud finder to locate the stud
• Use a tape measure to locate the
center of a rafter
• Follow mounting steps
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Mounting to Brick
Steps required to mount to brick:
• 1st – Mark the drill points in the brick
• 2nd – Drill the holes
• 3rd – Install lag shields
• 4th – Seal the holes
• 5th – Install lag shields with washers
• 6th – Level the mast
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Mounting to Brick
• Make drill
points into
the brick
• Do not drill
into the
mortar
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Step 1: Mark Drill Points
• Place the foot plate so each of the
holes line up on the brick surface
• Level the foot plate
• Mark the 4 outer holes
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Step 2: Drill the Holes
Drill and Drill Bit
• Choose the HAMMER
setting on the drill
• Choose the high speed on
the drill
• Use a ½” Masonry Drill Bit
Masonry
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Step 2: Drilling the
Holes
• Drill the ½” wide holes
• Drill as deep as the length of the
lag shield
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Step 3: Install Lag
Shields
• Remove any dust from the holes
• Insert the lag shields
• Tap the lag shields in with a hammer
until flush with the brick
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Step 4: Seal the Holes
Fill Each hole with silicone
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Step 5: Install Lag Bolts
• Place the foot plate against the wall
• Install the 4 lag bolts
• Tighten and torque all 4 lag bolts
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Step 6: Mast Leveling
• Level the mast using a
Torpedo Level or the
bubble level
• Tighten the mast bolts
Mast Tube Bubble Level
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50
Roof Mounting
Steps required to mount to a roof:
• 1st - Identify the living and non-living areas
• 2nd - Locate the Nail Heads
• 3rd - Locate the center of the rafter
• 4th - Mark and pre-drill the holes
• 5th - Seal the holes
• 6th - Mount the foot plate
• 7th - Level the mast
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Roof Mounting Key
Points
• Identify living and non-living area roofs
• Unacceptable conditions of the roof
• Locate a Rafter with or without a studfinder
• Improper roof mounting results in over
$ 1 million dollars of damage each year
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Step 1: Living Area
Living area pic
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Living Areas Activity
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Roof Mounting Key
Points
Rafters – the structural
members that support the roof
Roof deck and layers
of roofing material
Rafters are on
24” centers
Eave – the portion
of the rafters that
overhang the wall
below.
Fascia – the
facing covering
the exposed
lower end of the
rafters.
Soffit – the exposed
underside of the eave
usually covered with a
thin panel of wood.
Exterior Wall
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Step 2: Locate the Nail
Heads
Locate Nail Heads
• Fascia board
Rafters
Transfer
Measurement
To Roof
• Soffit
Shingle
Overhang
Facing
Board
Measure
From Roof Edge
To Nails
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Step 2: Locate the Nail
Heads
• Locate nail head
• Measure from nail
head to edge of
roof
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Step 3: Locate and
Mark Rafter
• Locate the rafter center
• Mark the foot plate top center hole
Fascia Nails
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Step 4: Mark and PreDrill the Hole
• Pre-drill the hole using a 7/32” drill bit
• Level the foot plate
• Mark the remaining 5 holes
• Pre-drill the remaining holes
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Step 5: Seal the Holes
• Fill the holes
with Black Jack
roof sealer
• Or, cut Bishop
tape to 2”x 2”
squares and
place over each
hole
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Step 6: Mount the Foot
Plate
• Install 2 - 5/16” x 3” lag bolts in the center
of the rafter
• Install 4 – 5/16” x 2 1/2” lag bolts in the
foot plate corners
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Step 7: Roof Foot/Mast
Mounting
• Level the mast
using a torpedo
level or the mast
bubble level
• Tighten the mast
bolts down
Mast Tube Bubble Level
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63
Pole Mounting
Steps required to mount to a pole:
• 1st - Dig and prepare the hole
• 2nd - Drill holes in pole for drainage
• 3rd - Trenching, cable and sweep
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Pole Mounting
Ground Pole Mount
• Pole mount guidelines
• Materials and tools
– Pole
– Shovel
– Quick set cement
– Flooded cable
– PVC sweep
– Pole hole digger
90° PVC Sweep
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Step 1: Dig and
Prepare the Hole
Anti-rotation Rod
Bell Bottom
of Hole
12” Width
36” Minimum
Depth
150 lbs
Concrete
Required
1 5/8” ODU Pole
7ft long
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Step 2: Pole Drainage
Drill two 3/16-inch
holes in the pole
approximately 3
inches up from the
ground level to allow
water to drain out of
the pole
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Step 3: Trenching,
Cable and Sweep
Ground Pole Mount
• 18 inches below the surface
• Flooded cable required
• Sweeps at each end
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Non-pen Mount
Non-penetrating
Mount
• Flat roofs
• Place protective
mat on roof
• Attach base of
ODU
• Ballast
• Level the mast
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Non-penetrating Mount
Ballast Requirements
Wind Load
100 mph
Ballast Requirement
315 lbs
• Concrete blocks come in 28 and 33lbs weights
• Example – You will need a total of 11.5-28lb
blocks to meet the 100mph wind load rating
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Mounting Options
Rail Mount
• Check structural
integrity
• 4 5/16 bolts and nuts
• Two ODU bases
• Bolt together on each
side of the rail
• Tighten
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Mounting Options
Tripod Mount
• Spread out the mount
• Tighten locking bolts
• Use ballast to secure
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Mounting Options
Under-eave Mount
• Pilot holes
• Tighten bolts
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Clamp-on Mount
• Clamps directly to
roof overhangs,
joists, patio/balcony
railings or fences
• Attaches to any solid
structure made of
wood or metal up to 3˝
wide
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Mounting:
What Not To Do
Mounting surfaces to avoid
• Wall
– Dry rotted siding
– Vinyl siding
– Aluminum siding
– Fiberglass
• Roof
– Shake shingles
– Concrete or clay tiles
– Metal
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Mounting:
What Not To Do
Non-approved Mounting Hardware:
• Concrete metal hit
anchor
• Tapcon® concrete
screws
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Unacceptable
Roof Conditions
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What Not To Mount To
Brick Veneer
Vinyl or Aluminum
Siding
Any Metal Roof
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What Not To Mount To
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What Not To Mount To
• This is not
acceptable as a
pole mount
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What Not To Mount To
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Where Would You
Mount?
91
Where Would You
Mount?
92
Summary
You should now be able to:
• Select stable mounting surfaces
• Mount the ODU to:
– Wood walls
– Brick or masonry walls
– Roof with asphalt shingles
– Poles
– Non-pens
• Explain what not to mount to
93
Exercise
• Written
– Multiple choice
• Hands-on
– In groups of three
– Use a stud finder to locate the stud
– Use a tape measure to locate the center of a rafter
– Follow mounting steps
– Each person will mount the base and plumb the mast
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Thank You!
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