92 - 8
Section E Hydraulics
9803/6020
Section E
92 - 8
Issue 1
Slew Motor
10 Apply grease to the lip of the oil seal. Hold the end of
cylinder 16 by hand and carefully insert the cylinder
assembly into housing 21. Use the seal protector on the
splines.
Note: The splines of the cylinder assembly protrude beyond
the housing, so use a guide of 30-50 mm (1.2-1.9 in) on the
lower part of the housing. Verify that spring 17 is inserted
correctly into the back face of return plate 19.
Confirm that the cylinder end is approximately 7.5 mm
(0.3in) lower than the housing.
11 Mount friction plate 4 and mating plate 5.
Note: Apply hydraulic oil to both faces before mounting the
plates.
12 Mount 'O'-ring 30 in housing 21 and 'O'-ring 6 on
piston 15.
Note: Grease the 'O'-rings before mounting.
13 Apply hydraulic oil to the sliding surface around piston
15 and slide it into housing 21.
Note: It is difficult to insert piston 15 into the housing due to
O'-rings 6 and 30. Hold the piston 15 horizontally and push
it into the housing with one movement.
Motor Assembly/Cylinder Assembly
Assembly (cont’d)
289010
289020
289030
289040
16
21
5
4
21
6
15
30
21
15
21
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