Tag wheel lift

摘要: A spring seat is mounted on each end of a pivot shaft which transversely the truck frame between drive wheels and tag pivoted by rocker arm pivotally connected to piston rod hydraulic cylinder. roller for engaging rear corresponding wheel leaf at front upper corner seat, while pin lower seat. The extends into attached frame, in Lift produced when hydraulically, seats permit equalization load wheels. cylinder may be single acting or double acting, but if latter, lost motion link arm.