Note: The relief valve needs to be equipped with a relief valve to have a medium return oil.

Does not include the servos in the figure

Remark: Add hydraulic oil circuit composed of overflow valve, automatically return oil, do not worry about not closing the oil pump in time when the cylinder is raised to the top; adjust the oil pump pressure, and playability is higher.

Small size, equipped with 8 M5 straight grease nipples.

Suitable for models:

DIY modified excavator, loader, truck and other engineering machinery models.