Step 8A: Assemble Girder To End Trucks - Uhrc - Yale SHAW-BOX YK Series Assembly & Instruction Manual

STEP 8A:
ASSEMBLE GIRDER TO END TRUCKS – UHRC
•
IF "X" DISTANCE IS LESS THAN 1", REMOVE FLAT
WASHER UNDER THE BOLT HEAD.
•
IF "X" DISTANCE IS GREATER THAN 1-1/4", ADD A
SECOND FLAT WASHER UNDER THE BOLT HEAD.
9
TIGHTEN ALL BOLTS AND NUTS PROVIDED IN KIT USING THE TURN-OF-NUT METHOD. THIS
IS DONE BY ALTERNATELY BRINGING BOLTS AND NUTS TO A "SNUG-TIGHT" CONDITION TO
ENSURE THAT MATING SURFACES ARE BROUGHT INTO FULL CONTACT WITH EACH OTHER.
THEN, MAKE A FINAL 1/2 TURN ON ALL BOLTS AND NUTS.
DO NOT SUBSTITUTE STANDARD BOLTS AND NUTS FOR THE
SPECIAL TRUCK CONNECTING BOLTS AND NUTS FURNISHED
WITH KIT. ONLY HIGH-STRENGTH BOLTS (S.A.E., GRADE 5) ANO
ELASTIC COLLARARED SELF-LOCKING NUTS, AS FURNISHED,
ARE ACCEPTABLE FOR ATTACHING TRUCK FRAMES TO
BRIDGE BEAM. HIGH STRENGTH BOLTS ARE IDENTIFIED ON
THE TOP OF THE HEAD BY THREE RADIAL LINES, EQUALLY
SPACED AT 120 DEGREES. SELF LOCKING NUTS MUST HAVE
TWO THREADS, MINIMUM EXTENDING THROUGH NUT. IF
NECESSARY, DISCARD FLAT WASHER TO GET TWO THREADS.
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CAUTION
P/N: C11746310 REV. AB June 2022