宋朝传奇之赵匡胤全集:这在汽车车架上出现是什么意思

The upper mounts are designed to fit between the bed cross sills。Make sure that the hoist is square with the truck frame. Before attaching the lower mount angles, recheck for any possible interference (cylinder swing, etc.). Clamp the lower mount angles to the lower hoist mounts and weld the full length of the lower mount. Do not weld on the truck frame. The frame of the truck is heat treated for strength, and welding could significantly decrease its strength. Drill and bolt the lower mount angles to the side of the truck frame (see Figure 7).
For narrow truck frames, bolt angles (at least 3/8 inch thick) to the side of the truck frame to compensate for the bed long members being wider than the frame of the truck (see Figure 8). If more than half of the long member channel’s width extends beyond the original truck frame’s width, then the bed long members need to be narrowed slightly. Do not narrow the bed long members too much, or the upper hoist mounts will not fit. When used, the support angles must be added to the entire length of the truck frame. Do not weld the angles to the truck frame!