Disassembly (Fig. 105)
Plug all ports and clean the outside of the valve thor-
Assembly (Fig. 105)
1.
IMPORTANT: Do not wipe control valve parts with
dry paper towels or rags. Lint may cause damage to
the hydraulic system.
oughly.
IMPORTANT: Match–mark spools to their associat-
ed bores before disassembly. Spools must be rein-
stalled to the bore from which they were removed.
CAUTION
2.
spool assemblies from their bores.
Remove both spool caps (item 10) and slide the
Use eye protection such as goggles when using
compressed air.
3.
each spool assembly.
Remove O–ring (item 12) and bushing (item 8) from
1.
compressed air.
Clean all metal parts with solvent and blow dry with
4.
from the spool bore ends that are opposite the spool
caps.
Remove wiper seals (item 20) and O–rings (item 12)
2.
up washers with new ones.
Replace check poppet (item 1), O–rings and back–
3.
4.
Install new O–rings (item 12) into the valve body.
If a spool was disassembled, install washer (item
NOTE: Disassemble spool assemblies only if the re-
taining ring (item 13), spacer (item 3), spool spring (item
16)
or washer (item 14) need replacing.
14),
spool spring (item 16), spacer (item 3) and retaining
ring (item 13) to the spool.
5.
Remove seat retaining plugs (items 7 and 15), back–
up washers, O–rings and check spring (item 9) from the
valve body.
5.
over the spools.
Slide bushings (item 8) and new O–rings (item 12)
6.
rings (item 27) and plungers (items 2 and 21) from the
valve body.
Remove check poppet (item 1), seats (item 5), O–
6.
and carefully install into their proper bore.
Lubricate spools liberally with clean hydraulic fluid
7.
caps from 20 to 25 ft–lb (27 to 33 N–m).
Install spool caps (item 10) into valve body. Torque
7.
ring from the opposite end of the plunger.
Remove solid plug (item 6), back–up washer and O–
8.
with clean hydraulic fluid and install into their proper
bore.
Lubricate both plungers (items 2 and 21) liberally
8.
valve body. Remove disc, spring and detent plunger
from the body.
Remove detent plug (item 19) and O–ring from the
9.
(item 1) and check spring (item 9) into the plunger bores.
Install new O–rings, seats (item 5), check poppet
Inspection
1.
excessive, replace control valve with new one.
Inspect spools and spool bores for wear. If wear is
10.Install
plugs (items 7 and 15) into their plunger bores. Torque
O–rings, back–up washers and seat retaining
plugs from 30 to 35 ft–lb (41 to 47 N–m).
2.
3.
Inspect springs and replace as necessary.
11.
Install new O–ring, back–up washer and solid plug
Inspect plunger and detent plunger for wear. Re-
(item 6) into the bore with the detent plunger. Torque
plug from 30 to 35 ft–lb (41 to 47 N–m).
place as necessary.
4.
spect O–ring sealing surfaces. Replace as necessary.
Inspect caps and plugs for damaged threads and in-
12.Lubricate
liberally with clean hydraulic fluid and install into valve
body bore.
detent plunger (item 22), spring and disc
13.Install
O–ring and detent plug (item 19) into valve
body. Torque plug from 4 to 5 ft–lb (5.4 to 6.8 N–m).
Groundsmaster 7200/7210
Page 4 – 91
Hydraulic System
| Categories | Lawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals |
|---|---|
| Tags | Toro Groundsmaster 7200, Toro Groundsmaster 7210 |
| Download File |
|
| Document Type | Service Manual |
| Language | English |
| Product Brand | Toro. Customer Service Representatives are available by phone:
Monday - Friday 7:30 a.m. to 9:00 p.m. (CDT) - Saturday 8:00 a.m. to 8:00 p.m. (CDT) - Sunday 10:00 a.m. to 8:00 p.m. (CDT)
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| Document File Type | |
| Publisher | toro.com |
| Wikipedia's Page | Toro Company |
| Copyright | Attribution Non-commercial |
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My mower is a TORO 7210.
Start fuse defection. Why ?