81
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2. As platform is unfolding, check for 
interference from the connector 
bar side bracket as it slides into 
the stop block (FIG. 81-1A).
FIG. 81-1
APPROX. 10”
REAR VIEW OF LH RUNNER
FIG. 81-1A
CONNECTOR BAR SIDE 
BRACKET
STOP
BLOCK
INTERFERENCE
1. To check for interference 
between platform connector 
bar side bracket and stop block 
(FIG. 81-1A), lower columns to 
approximately 10” above the 
ground, then begin to unfold 
platform (FIG. 81-1).
STEP 17 - CHECK CLEARANCE OF CONNECTOR 
BAR SIDE BRACKETS & STOP BLOCKS