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Hydraulic Solenoid Valve Coil
A hydraulic solenoid valve coil on the deck control man-
ifold (Fig. 58) or lift control manifold (Fig. 59) can be re-
placed without opening the hydraulic system.
Removal
1. Park machine on a level surface, lower cutting
decks, stop engine and engage parking brake. Remove
key from ignition switch.
2. Locate the solenoid valve coil that is to be replaced.
A. Tilt operator seat up to gain access to hydraulic
deck control manifold. Refer to Figure 58 for solenoid
coil locations on the deck control manifold.
B. The lift control manifold is attached to a frame
bracket under the operator floor plate. Access to the
lift control manifold can be obtained by removing the
floor plate. Refer to Figure 59 for solenoid coil loca-
tions on the lift control manifold.
3. Disconnect the wire harness electrical connector
from the solenoid valve coil to be replaced.
4. Remove the nut from the hydraulic valve.
5. Slide the solenoid coil from the valve.
6. Clean any corrosion or dirt from the valve.
Installation
1. Slide new coil assembly onto the hydraulic valve.
2. Install the nut onto the valve and torque nut from 48
to 60 in- -lb (5.4 to 6.7 N- -m) (do not over--tighten).
3. Connect the machine wire harness connector to the
solenoid coil.
4. Lower and secure seat if deck control manifold was
accessed. Install operator floor plate if lift control man-
ifold was accessed.
Electrical System
FRONT
2
4
1. Deck control manifold
2. Solenoid coil PRV2
6
FRONT
1. Lift control manifold
2. Solenoid coil PRV
3. Nut
Page 5 - - 48
1
3
48 to 60 in- -lb
(5.4 to 6.7 N- -m)
Figure 58
3. Solenoid coil PRV1
4. Nut
48 to 60 in- -lb
5
(5.4 to 6.7 N- -m)
4
Figure 59
4. Solenoid coil S2
5. Nut
6. Solenoid coil S1
Groundsmaster 4300--D
3
2
1
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