Barko Hydraulics BARKO LOADERS 275B SER-ERS, Service Manual, Page: 56 / 85

page 56 page 56 page 56 page 56 page 56
275B SER
800-00152
MOTOR MAINTENANCE (MFE19 SWING) MOTOR MAINTENANCE (MFE19 SWING)
MOTOR MAINTENANCE (MFE19 SWING) MOTOR MAINTENANCE (MFE19 SWING) MOTOR MAINTENANCE (MFE19 SWING)
Figure 2 Figure 2
Figure 2 Figure 2 Figure 2
PRINCIPLES OF OPERATION PRINCIPLES OF OPERATION PRINCIPLES OF OPERATION PRINCIPLES OF OPERATION PRINCIPLES OF OPERATION
- SEE FIGURE 2
Fluid under pressure is applied to the inlet of the piston motor causing rotation of the motor shaft. As fluid moves into
the inlet port, force is applied to all pistons located within the inlet kidney slot. Each of these pistons exert an axial
force against the swash plate through the piston shoes. The angle of the swash plate converts this axial force into
motion and the piston and shoe S/A's slide against the swash plate in the direction of rotation.
The angular force developed by this sliding motion is transmitted into the cylinder block and subsequently to the motor
shaft through a connecting spline.
The pistons continue to move out of the cylinder block until they approach the outlet kidney slot. At this time pressure
drops, the motion of the pistons reverse and fluid is pushed out of the cylinder block into the outlet kidney slot.
Inline Piston Motor Operation Inline Piston Motor Operation Inline Piston Motor Operation Inline Piston Motor Operation Inline Piston Motor Operation
Figure 1 Figure 1
Figure 1 Figure 1 Figure 1
Cross Section of Inline Piston Motor Cross Section of Inline Piston Motor
Cross Section of Inline Piston Motor Cross Section of Inline Piston Motor Cross Section of Inline Piston Motor
ASSEMBLY OF A TYPICAL MOTOR ASSEMBLY OF A TYPICAL MOTOR
ASSEMBLY OF A TYPICAL MOTOR ASSEMBLY OF A TYPICAL MOTOR ASSEMBLY OF A TYPICAL MOTOR
Use the following drawing in Figure 1 as a reference for the following instructions.
Valve Block Valve Block
Valve Block Valve Block Valve Block
Bearing Spacer Bearing Spacer Bearing Spacer Bearing Spacer Bearing Spacer
Housing Housing Housing Housing Housing
Piston & Shoe Piston & Shoe
Piston & Shoe Piston & Shoe Piston & Shoe
Subassembly
Subassembly
Subassembly Subassembly Subassembly
Front Bearing Front Bearing
Front Bearing Front Bearing Front Bearing
Shaft Shaft Shaft Shaft Shaft
Shaft Seal Shaft Seal
Shaft Seal Shaft Seal
Shaft Seal
Swash Plate Swash Plate Swash Plate Swash Plate Swash Plate
Cylinder Block Cylinder Block Cylinder Block Cylinder Block Cylinder Block
Wafer Plate Wafer Plate
Wafer Plate Wafer Plate
Wafer Plate