Toro 02097SL Rev E Service Manual Groundsmaster 4000 D Service Manual

Steering Valve Service
8
1
3
24
2
6
7
4
5
20  19
19
23
22
1
50 in--lb
21
(17
N--m)
9
10
11
12
13
14
140 to 160 in--lb
(16 to 18 N--m)
15
16
17
18
Figure 74
1.
2.
3.
4.
5.
6.
7.
8.
Steering valve housing
9.
Cap screw
17. Geroter drive
18. Wear plate
Dust seal
10. End cap
11. O--ring
12. Seal ring
13. O--ring
14. Geroter
15. O--ring
16. Spacer
O--ring
Spool
Spring retaining ring
Pin
Sleeve
Centering springs/spacers
19. Bearing race
20. Thrust bearing
21. Plug
22. O--ring
23. Relief valve
24. Quad seal
Disassembly
4.  Slide the spool and sleeve assembly from the hous-
ing.
NOTE:  Cleanliness   is   extremely   important   when
repairing steering control  units. Work in a clean  area.
Before disconnecting the hydraulic lines, clean the port
area of the steering valve assembly. Before disassem-
bly, drain  the oil,  then plug  the ports and  thoroughly
clean  the   exterior.  During   repairs,  always  protect
machined surfaces.
5.  Remove the thrust bearing and bearing races (2).
6.
Remove the quad seal.
7.
dustsealfromthehousing.Becarefultonotdamagethe
dust seal seat in the housing.
Use a small  blade screwdriver to  carefully pry the
1.
valve assembly.
Remove the  seven cap  screws from  the steering
8.
gether.
Remove the pin that holds the spool and sleeve to-
2.
wearplate,sealring,ando--ringsfromhousing(Fig.74).
Remove  end cap,  geroter,  spacer, geroter  drive,
9.
tering springs and spring retaining ring will stay with the
spool as it is removed.
Carefully slide the spool out of the sleeve. The cen-
3.
Remove the plug and relief valve.
Hydraulic System (Rev. B)
Page 4 -- 96
Groundsmaster 4000--D
Product Specification
CategoriesLawn Mower Manual, Toro Lawn Mower Manual
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- 250 pages
Document TypeService Manual
LanguageEnglish
Document File TypePDF
Publishertoro.com
Wikipedia's PageToro Company
CopyrightAttribution Non-commercial
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