a. deteRmine Pigtail lag scReW (b) location
PULL VEHIcLE INTO gARAgE
mARk LOcATION POINTS
Use plumb line to locate four lifting points on mounting
boards above vehicle.
DRILL 2 HOLES ON EAcH mOUNTINg bOARD
INSTALL PIgTAIL LAg ScREWS
Diagram 5.
Pull vehicle into garage with boat on car rack.
Disconnect automatic garage door.
2”
(50 mm)
Boat Width
2”
(50 mm)
Plumb Lines
CEILING
Plumb Lines
Front View
Diagram 6.
Mark boat width on mounting boards.
Diagram 7.
Add 2" (50 mm) outside each mark. Drill a
7
/
32
"
(5.5 mm) hole at each drill point on mounting boards
Object Width
Add 2” (50 mm) outside
Drill 7/32” (5.5 mm)
hole at each outside point
MOUNTING BOARD
2”
(50 mm)
2”
(50 mm)
Drill Hole
Point
Drill Hole
Point
Diagram 8.
Install a Pigtail Lag Screw (B) in each hole.
Threads should just disappear into mounting board.
steP 3: install Pigtail lag scReWs
Top
Thread
Top
Thread
Mounting Board
Mounting Board
Over-
Tightened
Past Top
Thread
Mounting Board
Top
Thread
Top
Thread
Mounting Board
Mounting Board
Over-
Tightened
Past Top
Thread
Mounting Board
Top
Thread
Top
Thread
Mounting Board
Mounting Board
Over-
Tightened
Past Top
Thread
Mounting Board
WARNINg! Do not over-tighten Pigtail Lag Screw
past top thread. This can weaken fastener hold
which may considerably weaken system, causing
load to fall which may cause an accident, damage
to property, personal injury or death.
