Lukas Compact Units User Manual

Page 30

11.4.4 Replacing the connecting block or drain valve

The connecting block or drain valve must be exchanged if the assembly is damaged, if

continued and correct function is no longer guaranteed or if a permanent leak has developed

in the assembly. It is possible to convert from a connecting block to drain valve arrangement

and vice versa.

Procedure:

1. Much of the procedure is identical to the procedure involved in changing the hydraulic

fluid including removal of pump carrier plate “O” with engine / motor. For this reason, we

recommend that you carry out this replacement as part of the fluid change. The work

required to replace the connecting block or drain valve is performed at pump carrier plate

“O”.

2. Loosen union “N” securing the pipes to the connecting block or drain valve and unscrew

return line “M” from the connecting block.

3. Loosen securing screws “L” from the connecting block or drain valve and remove the

screws along with washers “K” underneath.

4. Now you can remove the connecting block or drain valve along with the seal underneath

and fit the new connecting block or drain valve. It is possible here to convert from a

connecting block to drain valve arrangement and vice versa.

5. The new connecting block or drain valve is fitted and connected to the pump carrier plate

in reverse order

6. To finish assembly, proceed as described in the “Replacing the hydraulic fluid” chapter.