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| Illustration 1 | g03852279 |
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(1) Piston motor (hydraulic fan)
(A) Case drain (B) Outlet port (C) Inlet port | |
Pressurized oil from the hydraulic fan pump flows into inlet port (B) of hydraulic fan motor (1). The hydraulic oil escapes from hydraulic fan motor (1) by way of outlet (A).
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| Illustration 2 | g03859956 |
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Piston motor (hydraulic fan) (2) Head (3) Valve Plate (4) Housing (5) Cylinder barrel (6) Piston (7) Reaction plate (8) Swashplate (9) Motor shaft | |
The pressurized oil enters hydraulic fan motor (1) by way of inlet port (C). The hydraulic oil flows by the inlet passage of valve plate (3) and into cylinder barrel (5) to piston (6). At that position of cylinder barrel (5) due to the angle of swashplate (8), piston (6) is fully entered into cylinder barrel (5). The pressure behind piston (6) forces cylinder barrel (5) to rotate. Piston (6) is moving out of cylinder barrel (5) as cylinder barrel (5) is rotating. The hydraulic oil is trapped between valve plate (3) and piston (6) until cylinder barrel (5) rotates piston (6) over the outlet passage of valve plate (3). The fixed angle of swashplate (8) at that position causes piston (6) to be moving back to full travel into cylinder barrel (5). The hydraulic oil then flows out of hydraulic fan motor (1) by way of outlet port (B) into the hose for the oil cooler.
Your piston motor is also equipped with a case drain. The case drain line will drain the excess oil from the case directly back to the hydraulic tank.