SM08-017-1
Page 4
Working Section.
2.
Remove the plug, spring, and needle valve from
the relief valve body.
1.
Install the spool into the working section so the
3.
Remove the relief valve assembly from the port
end with the ground flats is on the port B end.
B side of the working section.
2.
Lubricate the 0-ring and install the check valve,
4.
Remove the snap ring, washer, screen, and ori-
spring, and cap into the bottom of the working
fice plate.
section.
5.
Remove the spring and poppet valve.
3.
If removed, install the needle valve, spring, and
poppet body cap into the poppet body.
6.
If necessary, remove the poppet body cap, nee-
dle valve, and spring.
4.
Install the spring and poppet valve assem-
bly.
7.
Remove the check valve cap, spring, and check
valve.
5.
Install the orifice plate, screw, washer, and
snap ring into the relief valve assembly.
8.
Remove the spool.
6.
Lubricate the valve assembly and 0-rings and
CLEANING AND INSPECTION,
install the valve into the port B side of the working
section.
1.
Clean all parts in a non residue type solvent.
7.
Install plug, spring, and needle valve into the
2.
Inspect the screw for any damage.
relief valve body.
3.
Check all needle valves for wear or other
8.
Lubricate the valve assembly and 0-rings, and
damage.
install the valve into the port A side of the working
section.
4.
Check the orifice in the orifice plate.
Inlet Section.
ASSEMBLY.
1.
If removed, lubricate and install the plugs into
General.
the inlet section.
Install new 0-rings on all components.
2.
Install the spring and plunger into the valve
body.
CAUTION
3.
Install the adjusting screw, spring, and needle
Do not damage the O-rings during install-
valve into the seat body.
ion of the valve. If the valve turns freely
then gets hard to turn, then easy to turn;
4.
Lubricate the seat body and screw it into the
remove the valve and check the O-rings.
main relief valve assembly. Install the locknut and
They have probably been damaged by a
washer.
sharp edge of a port or thread.
5.
Lubricate the valve assembly and 0-rings and
install it into the inlet section.
NOTE
Solenoid Valve.
The valve should turn by hand until com-
1.
Install the spool into the valve body.
pression of the 0-rings begins.