Baoli CPCD 80, Инструкция по эксплуатации и обслуживанию

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Fig.6.2 Middle position
(2) Push slide valve (See Fig.6.3)
At that time, the middle passage is off. The oil that is come from the oil enter will
push out the one-way valve, and inflood cylinder port B. The oil that is expelled from the
cylinder port A will pass the low-pressure passage and be back to fuel tank. The slide
valve will replace to the middle position recur to the replacement spring.
(3) Pull slide valve (See Fig.6.4)
This moment, the middle position passage is off. The oil that is come from the oil
enter port will push out the one-way valve, and inflood cylinder port A, the oil that is
expelled from the cylinder port B will pass the low-pressure passage and be back to fuel
tank. The slide valve will replace to the middle position recur to the replacement spring.
Fig.6.3 push slide valve Fig.6.4 pull slide valve