User manual

Groundsmaster 4000--D/4010--DPage 5 -- 36Electrical System

Hydraulic Valve Solenoids

Figure 45

1. 4WD manifold

2. LH PTO manifold

3. Traction manifold

4. Front PTO manifold

5. Fan drive manifold

6. RH PTO manifold

7. Lift/lower manifold

FRONT

RIGHT

Several hydraulic solenoid valve coils are used on the

hydraulic control manifolds of Groundsmaster 4000--D

and 4010--D machines. When energized by the TEC

controller, these coils provide hydraulic circuit control.

Solenoid valve coils with two (2) different resistance

specifications are used on the 4000--D and 4010--D.

Thecorrectresistanceofacoilcanbeidentifiedbymea-

suring the height and diameter of the coil (Fig. 46). Re-

sistance testing of the coils can be done with the coil

remaining 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,hydraulicproblem).Refertoyourpartscatalogto

determine if solenoid coils are identical.