Items for STEP 21:
(1)
³₈
" x 4
¹₂
" bolt
(2)
³₈
" washers
(1)
³₈
" lock nut
CONNECT TOWER AND SWING BEAM
On the post of tower assembly where the beam will be attached, measure and
mark hole location (7" down and 1
⁵₈
" from edge) as shown.
(Fig. 1)
Drill a
³₈
" hole completely through the board.
On the open hole of the beam assembly use a 1
¹₈
" spade bit and counterbore
approximately
¹₄
" deep to ensure that the threads of the bolt are at least flush to
the end of the nut when installed.
(Fig. 2)
Lift beam to an upright position and attach to tower using one
³₈
" x 4
¹₂
" hex bolt,
³₈
" washers and
³₈
" lock nut as shown.
(Fig. 2)
26
7
"
1
⁵₈
"
Fig. 1
Counterbore
Fig. 2