. OPERATION DETAILED CONTROLS AND GAUGES OPERATION DETAILED CONTROLS AND GAUGES operation in Step 5 to engage the lock. 3 - 45 5. our the operator' s cab, and wit h your right han d, grip top k nob (D), pull it up, and push it agai nst lock he ar of cab securely to lock the wi 6. Check th at leve r (B) is secure ly at the LOC K position The lo ck is e ngage d if the arrow on lock case (F) matches the po If the the ar sition o arrow o row on f the a n lock lever ( rrow o case ( B), the n lever (B F) does n lock is n ). Check v ot match th ot engaged