Groundsmaster 4100--D/4110--D Hydraulic SystemPage 4 -- 133
NOTE: TheportsonthePTOmanifoldsare marked for
easy identification of components. Example: SV1 is the
deck solenoid valve and P1 is a gear pump connection
port (see Hydraulic Schematic in Chapter 10 -- Foldout
Drawings to identify the function of the hydraulic lines
and cartridge valves at each manifold port).
ThePTOcontrol manifoldsforthe three(3) cutting deck
sections are very similar.
IMPORTANT: When servicing the PTO manifolds,
DO NOT interchange parts from one control man-
ifold to another.
Removal (Fig. 96)
1. Read the General Precautions for Removing and
Installing Hydraulic System Components at the begin-
ning of this section.
2. Topreventcontaminationofhydraulicsystemduring
manifold removal, thoroughly clean exterior of manifold
and fittings.
3. Disconnect wire harness connector from the sole-
noid valve.
4. Disconnect hydraulic lines from manifold and put
capsorplugsonopenhydraulic linesand fittings.Label
disconnected hydraulic lines for proper installation.
NOTE: The upper cap screw on the right side PTO
manifold also secures the ground cable and has a lock
washer to ensure a good grounding path. Make sure
that lock washer is retrieved when removing RH PTO
manifold from frame.
5. Remove hydraulic PTO manifold from the frame us-
ing Figure 96 as guide.
6. If hydraulic fittings are to be removed from manifold,
mark fitting orientation to allow correct assembly. Re-
move fittings from manifold and discard O--rings.
Installation (Fig. 96)
1. If fittings were removed from manifold, lubricateand
place new O--rings onto fittings. Install fittings intoman-
ifold openings using marks made during the removal
process to properly orientate fittings. Tighten fittings
(see Hydraulic Fitting Installation in the General Infor-
mation section of this chapter).
2. InstallhydraulicPTOmanifoldtotheframeusingFig-
ure 96 as guide.
NOTE: Make sure that lock washer and ground cable
arepositionedunderuppercapscrewheadwheninstal-
ling RH PTO manifold.
3. Remove capsand plugsfromfittingsandhoses.Us-
inglabelsplacedduringmanifoldremoval,properlycon-
necthydrauliclinestomanifold(seeHydraulicHoseand
Tube Installation in the General Information section of
this chapter).
4. Connect wire harness connector to the solenoid
valve coil on the PTO manifold.
5. Makesurehydraulictankisfull.Addcorrectoilifnec-
essary before returning machine to service.
Hydraulic
System
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