Hyundai Robex 22-7, Руководство по обслуживанию

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7-5
7-2-2 Replacing the O ring on the spool
1. On the lever side
1) Remove the mounting screws (1) of the O-ring presser from the block.
2) Replace the backup ring (2) and O-ring (3).
3) When mounting the O-ring presser, be sure not to damage the O-ring.
2. On the cap side
1) Loosen the cap mounting screws (4) and remove the cap (5).
Take out spool (6) and replace O-ring (7)
2) Rinse the spool and insert it in the body.
3) When installing the spring cap, be careful not to damage the O-ring.
Tightening torque of the cap mounting screw is 0.9 kgf-m.
The spool is replaced in the units of the block assembly.
7-2-3 Removing the load check valve
1. Remove the load check spring and load check valve from the valve block.
2. Keep each load check valve in order so as not to confuse it with other valve block.
2. Clean the parts sufficiently before assembling them.
7-2-4 Replacing the relief valve assembly and the O-ring.
1. Remove the inlet section assembly and the relief valve.
2. If necessary, replace the O-ring or the relief valve assembly.
3. During installation, give grease to the O-ring.
4. When the relief set, cap nut of adjusting screw and hexagon nut are loosened, always
check relief set pressure using the pressure gauge.
At this time, the relief set pressure and flow rate shall be conformed to the
specification indicated on the page of external drawing.
5. When the relief valve assembly is removed, check whether the small hole on the center
of relief piston is clogged with foreign matter.
1
Load check spring
Load check valve
2
3
6
7 2
5
4