1.Hydraulic Pump

2.)Assembly of motor 1.)Assembling the oil seal (1-12)

Check that the oil seal (1-12) is not installed onto the flange (1-1). If not, press fit the oil seal (1-12) onto the flange (1-1), using an oil seal press-fit jig.

Note:

a.Prior to press-fit operation, apply grease on the bore section of the oil seal (1-12) press-fit section of the flange (1-1) and bore surface of the oil seal (1-12). b.Press fit after applying grease on the lip section of the bore of the oil seal (1-12). c.When press fitting, use a press at rights.

Inclined press-fitting force damages the side surface of the oil seal (1-12). d.When press fitting, take care not to damage the lip section of the bore of the oil seal (1-12).

Damaging it may cause oil leakage, which could result in breakage of the interior of the reduction gear while the motor is operating.

2.)Assembling the piston assembly (1-7)

Assemble the spring (1-20) into the hole on the flange (1-1) provided for assembling the piston assembly (1-7).

Next, assemble the piston assembly (1-7) onto the flange (1-1).

Note:

a.When assembling the spring (1-20), check that the spring is placed in the center of the hole. b.When assembling the piston assembly (1-7), do so with the cylindrical section down. c.Prior to assembling the piston assembly (1-7), apply hydraulic oil on the surface of the bore provided on the flange (1-1) for piston installation and the side surface of the cylindrical section of the piston assembly (1-7). d.After assembling the piston assembly (1-7), check that the piston assembly (1-7) operates smoothly.

3.)Assembling the steel ball (1-6)

Assemble the steel ball (1-6) into the sphericalsurface bore on the flange (1-1).

Note:

Prior to assembling the steel ball (1-6), apply hydraulic oil on the surface of the sphericalsurface bore provided on the flange (1-1) and the steel ball (1-6).

4.)Assembling the shaft (1-3)

Press fit the ball bearing (1-8) onto the shaft (13), using a bearing press-fit jig.

Next, assemble the shaft (1-3) in the center of the flange (1-1).

Note:

a.When assembling the ball bearing (1-8), check that it is installed at rights. b.After assembling the shaft (1-3), check that the shaft rotates smoothly.

5.)Assembling the swash plate (1-5)

With the graded side up, assemble the swash plate (1-5) onto the flange (1-1).

Note:

a.Assemble so that the rear spherical -surface bore on the swash plate (1-5) is aligned with the steel ball (1-6). b.After applying hydraulic oil on the steel ball (16), assemble the swash plate (1-5). c.After assembling the swash plate (1-5), check that the swash plate operates smoothly.