ZF GK20 User Manual

Maintenance and Installation Instructions Edition 11.07.2006 13 of 30
Mounting of the pivoted bogie bearing with holding ring GK 40
a) Press the pivoted bogie bearing (Item 01)
evenly into the transmission top section
until contact is obtained.
b) Determine the Dim. A and B.
Prior to bolting
Figure 06
c) Calculate the thickness of the shim rings
(Item 02) to be inserted, so that the bearing
preload is reached.
d) Dim. A – Dim. B – 0.05 to 0.25 mm =
bearing preload
e) Prepare the required shim ring thickness
and insert it.
Figure 07
In order to obtain the bearing preload a gap of 0.05 – 0.25 mm must exist
before between the holding ring (Item 03) and the inserted shim rings (Item
02) before bolting. Bearing play and an excessive preload have a negative
effect on the service life of the pivoted bogie bearing.
After bolting
f) Put on one drop each of LOCTITE 242
onto the threads of the Allen screws M10
(Item 02) and fasten the holding ring (Item
03) with screws.
g) Tighten the screws crosswise.
h) Tightening torque: 46 Nm
Figure 08
02
03
01
02

ZF GK20 Specifications

General

Brand	ZF
Model	GK20
Category	Microphone system
Language	English