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Groundsmaster 4500--D/4700--DPage 5 -- 42Electrical System
Hydraulic Solenoid Valve Coils
Figure 51
1. Deck c ontrol manifold
2. Lift control manifold
3. Fan control manifold 4. HI/LOW range control m anifold
1
4
3
2
FRONT
RIGHT
GROUNDSMASTER 4500--D SHOWN
Numerous hydraulic solenoid valve coils are used on
the hydraulic control manifolds of Groundsmaster
4500--D and 4700--D machines. When energized by the
TEC controller, these coils provide hydraulic circuit con-
trol.
Three (3) different solenoid valve coils are used on your
Groundsmaster. Two (2) of these coils slide onto the
solenoid valve and are secured with a nut. Additionally,
the HI/LOW range control manifold (item 4 in Figure 51)
includes a solenoid valve with an integral solenoid coil.
Testing of all of these coils can be done with the coil re-
maining on the hydraulic valve.
NOTE: To assist in troubleshooting, identical solenoid
coils can be exchanged. If the problem follows the ex-
changed coil, a problem with the coil likely exists. If the
problem remains unchanged, something other than the
solenoid coil is the problem source (e.g. switch, circuit
wiring, hydraulic problem).