956
Model Code Page
61. Steering system
15. 5. 1996
8050--8750 612 2
P
EF
CF
LS
P=from pump
EF=surplus oil
CF=max prior. oil flow
LS= load sensing
Priority valve OLS 120
Note! Priority valve OLS 120 is fitted on 8050---8750 tractors
and on 6000---8400 from F13208---. The construction differs a
little from OLS 80 valve. OLS 120 valve is bigger than OLS 80.
1. Cleaning priority valve
A. Disassembling
1. Detach the priority valve which is fitted beside the pressure
filter under the cab floor on the RH side.
2. Open plug (1) and remove the sealing ring (2).
3. Unscrew the connection (6) and remove the sealing ring (2)
and the spring (5).
4. Push out the valve slide (3) by using e.g. a pencil. Do not
damage contact surfaces on the slide and the housing.
5. Check and clean the parts. Replace the sealing rings with
new ones. Lubricate the parts with o il before fitting.
B. Assembling
1. Push the slide (3) into the housing. Fit a new sealing ring on
the plug (1).
2. Place the spring (5) into the housing. Fit a new sealing ring
and the connection(6). Tighten the connection to 40---60 Nm.
3. Tighten the plug (1) to 40---60 Nm.
4. Fit the priority valve.
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