PTO Manifold Service
8
20 ft--lb
5 ft--lb
(6.7 N--m)
(27
N--m)
7
9
25
(34 N--m)
ft--lb
2
0 ft--lb
(27
N--m)
6
10
25 ft--lb
(34 N--m)
11
5
20
(27
ft--lb
N--m)
1
50
(67
ft--lb
N--m)
20 ft--lb
(27 N--m)
4
2
RH WING DECK PTO MANIFOLD SHOWN
3
Figure 97
1.
2.
3.
4.
Manifold body
5.
6.
7.
8.
Relief valve (port RV2)
Solenoid valve (port S)
Solenoid coil
9. Relief valve (port RV1)
10. Spool logic cartridge (port LC2)
11. Spool logic cartridge (port LC1)
NWD SAE #4 plug with O--ring
Orifice (0.063) (port OR)
#8 zero leak plug with O--ring
Nut
NOTE: The ports on the PTO manifolds are marked for
easy identification of components. Example: S is the
decksolenoidvalveandP1isthegearpumpconnection
port (see Hydraulic Schematic in Chapter 10 -- Foldout
Drawings to identify the function of the hydraulic lines
and cartridge valves at each port location).
NOTE: The PTO manifold assembly includes zero leak
plugs. These plugs have a tapered sealing surface on
theplugheadthatisdesigned toresistvibrationinduced
plugloosening.ThezeroleakplugsalsohaveanO--ring
as a secondary seal. If zero leak plug removal is neces-
sary, lightly rap the plug head using a punch and ham-
mer before using an allen wrench to remove the plug:
the impact will allow plug removal with less chance of
damage to the socket head of the plug.
The control manifolds for the three (3) cutting deck sec-
tions are very similar. The PTO manifold for the front
(center) deck does not include an orifice (item 3).
IMPORTANT: When servicing the PTO manifolds,
DO NOT interchange parts from one control man-
ifold to another.
Hydraulic System
Page 4 -- 134
Groundsmaster 4100--D/4110--D
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