New Holland WorkMaster 50 Service Manual page 501

2. Grease O-ring and king ring/roto glyd with hydraulic oil
and place them on the tool.
3. Hold the outer part of the assembly tool in the bottom
of the steering unit housing and guide the inner part of
the tool right to the bottom.
4. Press and turn the O-ring/kin-ring into position in the
housing.
5. Draw the inner and outer parts of the assembly tool
out of the steering unit bore, leaving the guide from the
inner part in the bore.
Steering - Hydraulic control components
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