980216
–
HCV270 Manual
Page 18 of 22
Rev 9 Issue 2. Date: 25/08/2021
The ram is fitted with relief valve plug assembly (991015) which also contains seals. To remove this,
locate off the two M8 x 12mm deep holes and unscrew the plug. The two relief valves have been
carefully set to operate at a set pressure and care should be taken not to disturb the settings during
removal. Remove these parts with a 17mm socket and 5mm hex bit.
With these parts now separate and the bearing ring (774032) now accessible, all main seals can be
seen and replaced.
Figure 9
–
Seal access
Figure 10
–
Main seal assembly