Komatsu 830E Shop Manual page 454

FIGURE 5-7. SHOCK AND SUCTION VALVE
ASSEMBLY
1. O-Ring
2. Pilot Section
NOTE: If further disassembly is required for the
shock and suction valves refer to Figure 5-8.
NOTE: The flow amplifier valve is equipped with two
shock and suction valves and they are identical. The
shock and suction valves are only serviced as
complete valve assemblies. O-rings 1 & 3, Figure 5-8
are replaceable. Relief valve (20, Figure 5-7) check
valve (54) and counter pressure valve (15) are also
serviced only as assemblies.
L5-10
3. O-Ring
Steering Component Repair
FIGURE 5-8. AMPLIFIER SPOOL ASSEMBLY
1. Check Valve
2. O-Ring
3. Spool
4. Pin
5. Pin
6. Retaining Ring
NOTE: Disassembly of the amplifier spool assembly
is only necessary should O-ring (2, Figure 5-9),
spring (9) or orifice screw (11) require replacement,
otherwise replace the amplifier spool assembly as a
complete unit. For complete disassembly refer to
steps 12 & 13.
12. Remove retainer ring (7, Figure 5-9), remove pin
(5). Remove plug (10) and spring (9). Remove
retaining ring (6) and pin (4) and remove inner
spool (8).
13. Unthread check valve (1) and remove. Remove
O-ring (2). Remove orifice screw (11) from plug
(10).
14. Clean and inspect all parts carefully. Make any
replacements necessary.
7. Retaining Ring
8. Inner Spool
9. Spring
10. Plug
11. Orifice Screw
L05026