Operation When doesn’t turn the steering wheel: 20-56 When the steering wheel doesn’t turn, the spring lamination makes the valve cartridge and valve sleeve stop at the central position of slot of valve cartridge that its pawl pin was fixed. In such case, the oil ports that connecting valve sleeve with steering cylinder ad manual pump are all isolated with the longitudinal slots of valve cartridge, meanwhile, the little holes in the bottom of valve cartridge are corresponding with the holes in the valve sleeve (totaling 24 holes distributing with equal-space in the 12 double-hole plates of surfaces of valve cartridge or valve sleeve).
The oil enters into intake port of steering gear from steering pump, and flows to the inside of valve cartridge through the valve cartridge and valve sleeve. After the oil is circulated, it flows outlet port of steering gear from the slot of valve cartridge and return to oil tank. ing wheel doesn’t turn, the n makes the valve cartridge stop at the central position artridge that its pawl pin was case, the oil ports that ve sleeve with steering 2. slot hole 3.core 4. front inlet of steering cylinder 6. core 5.rear inlet of steering cylin al pump are all isolated with slots of valve cartridge, little holes in the bottom of are corresponding with the ve sleeve (totaling 24 holes 7.
inlet of hand pump