Hydraulic part of excavator
The hydraulic part is mainly divided into 3 parts
One: hydraulic pump · Our hydraulic pump is: variable displacement. Swash plate type, piston pump.
Common accessories purchased by general customers: hydraulic pumps, pumps, plungers, flow plates, nine empty plates
2: Distributing valve distributor is: 7 spool single valve block servo hydraulic operation.
Main function: return of the arm and arm, prevent the arm and arm from shifting.
3: Pilot operation handle mainly includes: pilot pump, operation handle
Working device of excavator
One: rotary motor, rotary deceleration
2: Walking motor, walking deceleration
3: Central rotary joint
Four: four wheels and one belt (guide wheel, carrier sprocket, supporting wheel, driving wheel, tightening cylinder, track)
Five: boom cylinder, arm cylinder, stick cylinder, boom, arm six: bucket, boom head, I-frame
Basic knowledge of excavator accessories
Lubricating oil knowledge, the main role of lubricating oil: lubricating, anti-corrosion, heat dissipation, cleaning, sealing and buffering, such as APICl-4, which is formulated according to the standards of the American Petroleum Institute, the level is Cl-4, C represents diesel engine, S On behalf of the gasoline engine.
Engines with turbochargers must use oils above CD level.
