64
English
5.906-736.0 Rev. 00 (07/15)
Exemplary illustration. The overflow valves for the 4
pumps are similarly designed, they differ in the spring force
relative to the pressure range.
The overflow valves are permanently set and sealed.
A High-pressure inlet
B High-pressure outlet
C Low pressure return
D Connection of frost protection valve
1 Spring
2 Control piston
3 Spring
4 Valve bolt
5 Valve
Function
If the pressure on the high pressure outlet increases, the
control piston (2) is lifted up with the valve bolt (4) and the
excess pressure escapes to the suction side of the high
pressure pump.
ATTENTION
Risk of property damage! If water or moisture should leak
from the component, it must be replaced entirely.
Replacing the O-rings only does not provide a remedy in
the long run.
9.15 Overflow
Summary of Contents for HDS 9/50 De Tr1
Page 46: ...46 English 5 906 736 0 Rev 00 07 15 1 Reflector on both sides 2 Marker light on both sides...
Page 182: ...182 English 5 906 736 0 Rev 00 07 15 13 3 Troubleshooting Yanmar diesel engine...
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Page 185: ...English 5 906 736 0 Rev 00 07 15 185 14 3 Maintenance plan Yanmar diesel engine...
Page 189: ...English 5 906 736 0 Rev 00 07 15 189 HDS 13 20 and 17 20 safety block...
Page 190: ...190 English 5 906 736 0 Rev 00 07 15 HDS 9 50 and 13 35 pump head...
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