Hyundai HX145LCR Manual page 504

Disassembly of the load check valve and the negative relief valve
(4)
The load check valve
a. Fix the body to suitable work bench.
Pay attention not to damage the body.
b. Loosen the plug (hexagon wrench : 10 mm).
c. Remove the spring and the load check valve with pincers or magnet.
The negative relief valve
a.
Loosen the socket (spanner : 32 mm).
b.
Remove the spring, spring holder, piston and negative control poppet.
Plug
Spring
Load check valve
Coin type filter Spring holder
Negative
control
poppet
8-41
Piston Spring Socket
14W98MC13