Smithco Big Vac V72 (sn 72111 – 72164) Parts & Service Manual User Manual | Page 51 / 58 | Also for: Big Vac V72 (sn 72052 – 72087) Parts & Service Manual, Big Vac V72 (sn 72001 – 72051) Parts & Service Manual, Big Vac V72 (sn 72088 – 72110) Parts & Service Manual, Big Vac V72 (sn 72165 – 72197) Parts & Service Manual, Big Vac V72 (sn 72198 – 72232) Parts & Service Manual, Big Vac V72 (sn 72233