Toro Reelmaster 2000-D, Руководство по обслуживанию

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Control Valve Disassembly (Fig. 56)
1. Wash control valve in solvent and dry it thoroughly.
2. Mount control valve into a vise so the mounting pads
are against the jaws of the vice and snap ring faces up.
NOTE: Remove check valve seat only if it needs re-
placement; it is pressed into the valve body.
3. Remove plugs and O–rings from the valve body. Re-
move springs, balls, and cam pins from the valve body.
4. Remove snap ring from the bottom of the valve body.
Remove spool snap ring, spring retainer, spacer, and
spring.
5. Push and twist spool carefully out of the valve body.
Set spool aside.
6. Remove O–rings from valve body using a soft
hooked scribe or a thin screwdriver taking care not to
scratch the valve bore finish.
Control Valve Inspection (Fig. 56)
CAUTION
Use eye protection such as goggles when using
compressed air
1. Wash all parts in solvent. Dry parts with compressed
air.
2. Inspect spool for bending and flatness. Signs of wear
on one side of the spool may indicate damage. Replace
a worn or damaged spool if necessary.
3. Inspect other components for wear or damage, and
replace damaged items as necessary.
Control Valve Reassembly (Fig. 56)
1. Coat all new O–rings with hydraulic oil. Install new
O–rings into the bore of the valve body.
2. Coat spool lightly with hydraulic oil. Push and twist
spool carefully into the valve body. Avoid damaging O–
rings.
3. Install spring retainer, spring, spacer, second spring
retainer, and spool snap ring onto the spool. Install snap
ring into the valve body.
8
9 7
5
3
1
6
9
10
4
11
2
12
10
14
13
Figure 56
1. Plug 8. Spool
2. O–ring 9. O–ring
3. Spring 10. Spring retainer
4. Ball 11. Spring
5. Check valve seat 12. Spacer
6. Cam pin 13. Spool snap ring
7. Control valve body 14. Snap ring
4. If check valve seat was damaged and removed,
press fit replacement into the valve body.
5. Lubricate and install cam pin, ball, and spring. Place
new O–ring on plug and install them into the valve body.
Tighten plug.
6. Repeat steps 4 and 5 for the second plug assembly.
Hydraulic System Page 4 – 78 Reelmaster 2000–D