THE THREE COUNTER-SUNK
HOLES ON THE SWING BEAM
SUPPORT WILL FACE DOWN
WHEN PROPERLY INSTALLED.
3/8" NUT
DETAIL A
SCALE 2 : 19
TORQUE WASHER
BOLT
3/8" WASHER
6-1/2"
CARRIAGE
BOLT CAP
FORT
HEX BOLT
FRONT
OF
4 X 4 X 47-1/2"
SWING BEAM MOUNT
5/16 X 4-1/2"
5/16" WASHER
4 X 4 X 110"
CORNER POST
LEFT
A
2 X 6 X 47-1/2"
BOTTOM
PANEL BOARD
(OFFSET DOWN)
2 X 6 X 47-1/2"
SANDBOX BOARD
(OFFSET DOWN)
STEP 4: ASSEMBLING THE LEFT SIDE FRAME
1: LAY THE LEFT SIDE CORNER POSTS ON THE GROUND IN THEIR PROPER ORIENTATION.
2: LAY THE 2 X 6 X 47-1/2" SANDBOX BOARD ON TOP OF THE LEFT SIDE CORNER POSTS AT THE BOTTOM OF
THE CORNER POSTS. THE HOLES IN THE SANDBOX BOARD MUST BE OFFSET DOWN.
3: USE 5/16 X 4-1/2" HEX BOLTS AND 5/16" WASHERS TO ATTACH THE TOP HOLES OF THE SANDBOX BOARD
TO THET-NUTS INSTALLED ON THE CORNER POSTS. THE BOTTOM HOLES WILL BE USED LATER.
4: LAY THE 2 X 6 X 47-1/2" BOTTOM PANEL BOARD ON TOP OF THE LEFT SIDE CORNER POSTS IN THE MIDDLE
OF THE CORNER POSTS. THE HOLES IN THE BOTTOM PANEL BOARD MUST BE OFFSET DOWN.
5: USE 5/16 X 4-1/2" HEX BOLTS AND 5/16" WASHERS TO ATTACH THE BOTTOM HOLES OF THE BOTTOM PANEL
BOARD TO THE T-NUTS INSTALLED ON THE CORNER POSTS. THE TOP HOLES WILL BE USED LATER.
6: LAY THE 4 X 4 X 47-1/2" SWING BEAM MOUNT ON TOP OF THE LEFT SIDE CORNER POSTS. THE THREE
COUNTER-SUNK HOLES IN THE MIDDLE OF THE SWING BEAM SUPPORT MUST FACE DOWNWARD.
7: FIND TWO TORQUE WASHERS. PLACE A 6-1/2" CARRIAGE BOLT THROUGH THE TORQUE WASHER,
MAKING SURE THAT THE TEETH ARE FACING IN THE SAME DIRECTION AS THE THREADS OF THE CARRIAGE
BOLT. PLACE THE TORQUE WASHER/CARRIAGE BOLT ASSEMBLY INTO THE CORNER POST HOLES SO THAT THE
HEAD OF THE CARRIAGE BOLT FACES WHAT WILL BE THE INSIDE OF THE FORT. USE A HAMMER TO SET THE
TORQUE WASHER INTO THE CORNER POST.
8: ATTACH THE SWING BEAM SUPPORT AS SHOWN IN DETAIL A.
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