Service Manual

Topdresser 1800 & 2500 Hydraulic SystemPage 3 – 45
1. Hydraulic manifold
2. O–ring
3. Hydraulic fitting (5 used)
4. O–ring
5. O–ring
6. Hydraulic fitting (2 used)
7. O–ring
8. 90
o
hydraulic fitting
9. O–ring
10. Hydraulic fitting (2 used)
11. O–ring
12. 45
o
hydraulic fitting
13. Relief valve (port R1)
14. Solenoid valve (port S1)
15. Solenoid coil
16. Nut
17. Oil filter
18. Check (relief) valve (port R2)
19. Check valve (ports CV1 and CV3)
20. Check valve (port CV2)
21. 90
o
hydraulic fitting
22. Check valve (port CV4)
Figure 41
Rear View
Front View
37 ft–lb
(50 N–m)
50 ft–lb
(67 N–m)
37 ft–lb
(50 N–m)
36 in–lb
(4.1 N–m)
5
4
2
1
3
7
8
6
12
11
10
9
2
3
2
3
3
5
6
7
4
9
10
4
9
11
11
19
18
17
16
15
13
14
20
19
21
22
37 ft–lb
(50 N–m)
37 ft–lb
(50 N–m)
Serial Number Above 240000000
FRONT
RIGHT
Manifold Removal (Figs. 40 and 41)
1. Empty Topdresser hopper and position machine on
a level surface. Chock wheels to prevent machine from
moving. If Topdresser is attached to tow vehicle, engage
tow vehicle parking brake, stop engine and remove key
from the ignition switch.
CAUTION
Operate all sweeper hydraulic controls to relieve
system pressure and to avoid injury from pres-
surized hydraulic oil. See Relieving Hydraulic
System Pressure in the General Information sec-
tion of this chapter.
Hydraulic
System