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Groundsmaster 4300--DHydraulic System Page 4 -- 92
Deck Control Manifold Service
1. Deck control manifold
2. Logic element (LC1/LC2)
3. Proportional relief valve (PRV1/PRV2)
4. Solenoid coil
5. Nut
6. Plug (zero leak #4)
7. O--ring
8. Plug (zero leak #8)
9. O--ring
10. Relief valve (RV1/RV2)
11. Pilot piston
Figure 81
2
3
6
8
9
1
5
7
4
2
3
4
6
8
10
11
8
11
8
60 in--lb
(6.7 N--m)
25 ft--lb
(33 N--m)
35 ft--lb
(47 N--m)
20 ft--lb
(27 N--m)
UP
35 ft--lb
(47 N--m)
25 ft--lb
(33 N--m)
50 ft--lb
(68 N--m)
20 ft--lb
(27 N--m)
50 ft--lb
(68 N--m)
UP
20 ft--lb
(27 N--m)
50 ft--lb
(68 N--m)
NOTE: The ports on the deck control manifold are
marked for easy identification of components. Example:
P1 is the pumpP1 connectionport andPRV2 is the loca-
tion for the proportional relief valvePRV2 (see Hydraulic
Schematic in Chapter 8 -- Foldout Drawings to identify
the function of the hydraulic lines and cartridge valves
at each manifold port).