Maintenance Manual
──LG6210E
Hydraulic Excavator
464
Operation principle of pump
• The pump assembly consists of two pumps contacted by
rack by the spline coupling (114). When transmission
power transmits to the front transmission shaft (111), the
two pumps is driven simultaneously
Absorbing oil throttle and oil supply throttle are built to
connection parts of pumps, inside the valve block
(312).Absorbing oil throttle are working on the front two
pumps
The structure and operation of the front and rear pump is
the same, so it only needs to explain the front pump. The
pump includes a rotating assembly, swash plate and valve
body components.
• Transmission components include front transmission
shaft (111), cylinder stopper (141), piston or package pins
(151, 152), set plate (153), the spherical bearing(156),
isolated pieces (158) and cylinder spring (157).
Transmission shaft is supported by the bearing(123, 124).
Package pin is embedded in the piston, forming a spherical
coupling. It has a recessed hole to release pressure from
the formation of the thrust load to create hydraulic
balance,which can slide the package pin lightly (211).
Subcomponent consists of a piston and a package pin, as
Fig.132 Movement, rotary incline
1.
Servo-piston
2.
Tilt pin
Fig.131 Pump, exploded view
Summary of Contents for LG6210E
Page 1: ...LG6210E Maintenance Manual Shandong Lingong Construction Machinery Co Ltd...
Page 36: ...Maintenance Manual LG6210E Hydraulic Excavator 18 Engine control specifications Table14...
Page 410: ...Maintenance Manual LG6210E Hydraulic Excavator 392 Fig 23 Hydraulic pump pipeline...
Page 412: ...Maintenance Manual LG6210E Hydraulic Excavator 394 Fig 24 Main valve pipeline...
Page 432: ...Maintenance Manual LG6210E Hydraulic Excavator 414 Fig 42 Main control valve Partial view2...
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Page 751: ...Maintenance Manual LG6210E Hydraulic Excavator 733 Fig 63 Element position...
Page 753: ...Maintenance Manual LG6210E Hydraulic Excavator 735 Fig 65 Element position...
Page 761: ...Maintenance Manual LG6210E Hydraulic Excavator 743 Fig 71 Element positions...
Page 767: ...Maintenance Manual LG6210E Hydraulic Excavator 749 Fig 77 Element positions...
Page 771: ...Maintenance Manual LG6210E Hydraulic Excavator 753 Fig 81 Element position...
Page 773: ...Maintenance Manual LG6210E Hydraulic Excavator 755 Fig 83 Element position SCH16...
Page 775: ...Maintenance Manual LG6210E Hydraulic Excavator 757 Fig 85 Element position...