Pivoted Connection-Steering; Mounting Of The Gear Ring With Pivoted Bogie Bearing Gk 20, Gk 25 & Gk 30 - ZF GK20 Maintenance And Installation Instructions

Pivoted Connection-Steering

Mounting of the gear ring with pivoted bogie bearing GK 20, GK 25 & GK 30
1. The centering and supporting face
for the gear ring has to be clean.
2. Pay attention that no foreign
substances or cleaning agents get
through the threaded holes (Item
01) of the mounting construction
(hole pattern of the housing) inside
the transmission.
3. Place the gear ring (Item 02) and
rotate it, so that the boltholes in the
gear ring are aligned with the
threaded holes of the mounting
construction.
4. By means of a plastic tip hammer
install the gear ring.
5. Put on the pivoted bogie bearing
(Item 03) with the correct side and
rotate it so that the boltholes in the
pivoted bogie bearing are aligned
with the hole pattern of the gear
ring and the housing.
6. Fasten the pivoted bogie bearing
and the gear ring on the mounting
construction by means hexagon
screws M8x40 (Item 04).
Attention
In order to avoid inadmissible leakage problems on the screws, it is mandatory to observe the
following procedure for thread sealing:
Always seal the screws (Item 01) located in the oil sump of the transmission! For this purpose
•
these are to be wetted with LOCTITE 243 around the thread contact face and only then to be
attached.
In order to avoid inadmissible variations among the screw clamping forces, always pretension the
•
screws carefully crosswise to the specified value. Tightening torque: 34 Nm Cl.3 ZF Standard
148
After a possible disassembly the LOCTITE residues in the threaded holes must be removed. It is
•
necessary to use new screws.
Maintenance and Installation Instructions
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Edition 11.07.2006
Figure 05
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