Only move an ISO container with your RTCH if the tophandler is in the normal latitudinal operational (across) position.
It's OK to stack or remove a container with the tophandler in the longitudinal position.
All of the grease fittings work in tandem with each other for the smooth operation of the RTCH's front/rear axle steering knuckle pins, front/rear steering cylinders, and tophandler.
Both spur idler gears for the container handler's tophandler need lube so the chain assembly will operate smoothly.
Climb up on the vehicle to get at these gears or lower the tophandler to about four feet for easier access.