STEP 3: MAIN DECK BEAMS
1: PLACE THE 4 X 6 X 124" MAIN DECK BEAMS FLUSH TO THE OUTSIDE OF THE LADDER AND ROCK WALL ASSEMBLIES,
LINING UP THE PILOT HOLES AT EACH END TO THE COUNTER-SUNK HOLES ON THE LADDER AND ROCK WALL SIDES.
2: FIND FOUR 6-1/2" CARRIAGE BOLTS AND FOUR TORQUE WASHERS. PLACE THE CARRIAGE BOLT INSIDE THE
TORQUE WASHER SO THAT THE TEETH ARE FACING THE SAME DIRECTION AS THE THREADS OF THE CARRIAGE BOLT.
3: PLACE THE CARRIAGE BOLT/TORQUE WASHER ASSEMBLY IN THE HOLE ON THE MAIN DECK BEAMS, OUT
THROUGH THE COUNTER-SUNK HOLES ON THE LADDER AND ROCK WALL SIDES, AND SET WITH A HAMMER.
4: USE 3/8 LOCK NUTS WITH 3/8" WASHERS TO SECURE THE MAIN BEAMS.
DO NOT FULLY TIGHTEN CARRIAGE
BOLTS AT THIS TIME.
5: USE GREEN BOLT CAPS TO COVER ANY EXPOSED THREADS.
A
B
4 X 6 X 124"
MAIN DECK BEAM
TORQUE WASHER
6-1/2" CARRIAGE BOLT
DETAIL A
3/8" LOCK NUT
3/8" WASHER
BOLT CAP
DETAIL B
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