Changing The Cylinder Block Kit (Assembly) - Danfoss 20 Series Service Manual

Service Manual and
Repair Instructions
Disassembly and Assembly
Minor repairs
(continued)
28
Axial Piston Pumps Series 20
Before reassembling the cylinder block assembly,
the thrust plate must be withdrawn from the
swash plate, and be tested to ensure that it has a
perfect surface. If there is any damage to the
sur face, the plate must be replaced. When the
thrust plate is replaced, care must be taken that
the side with the chamfer is placed next to the
swash plate.
13
20 Cone bearing
see page 18
The pump should then be moved from the
horizontal to a vertical position. The spring guide
can now be pushed over the shaft.
L1003506 • Rev BA • Jun 2014
29
F000 106
The cylinder block assembly should be installed
next. It is necessary to check alignment of the
ball guide and cylinder block splines. The
undersized tooth in the spline of the cylinder
block must line up with the missing tooth in the
ball guide spline. These in turn line up with a
missing tooth on the shaft spline.
Lubricate the thrust plate, slippers, pis tons, and
bores with clean oil. Slide the cylinder block
assembly onto the shaft and against the thrust
plate.
F000 108
Before fitting the tapered bearing, the shaft must
be supported underneath so that the spring
guide is not compressed by the bearing. A spacer
is required to protect the slot in the end of the
end of the pump shaft from the puller screw.
49
Bearing puller Cone bearing
F000 107
13
F000 068