Hydraulic Solenoid Valve Coils
g256538
Figure 112
1.
Main manifold
8.
Replaceable coil
2.
Solenoid valve SP1
9.
Coil nut
3.
Solenoid valve SP2
10.
Cap screw
4.
Solenoid valve EH
11.
SCV manifold (optional)
5.
Solenoid valve SV2
12.
Solenoid valve SCV Enable (N.C.)
6.
Solenoid valve SV3
13.
Solenoid valve SCV Enable (N.O.)
7.
Solenoid valve SV1
Electric coil actuated hydraulic valves are used on the main manifold and the
optional Selector Control Valve (SCV) manifolds. When the coil or the coil relay
is energized by the T1: TEC, the hydraulic valve shifts to control hydraulic flow.
A faulty solenoid coil or solenoid circuit wiring problem will not be identified
by the Info Center Display. The Info Center Display can be used to verify
that output current from the appropriate controller is available for the solenoid
coil, but the display will not verify that the solenoid coil and circuit wiring is
functioning correctly; refer to
Using the InfoCenter Display for Troubleshooting
(page 3–23)
. To assist in troubleshooting, identical replaceable solenoid coils
can be exchanged. If the problem follows the coil, the coil is likely at fault. If the
problem remains unchanged, something other than the coil is the likely problem
source (e.g. switch, circuit wiring, hydraulic problem).
Testing the Hydraulic Solenoid Valve Coils
Typically, a failed solenoid coil will either be shorted (very low or no resistance)
or open (infinite resistance).
1. Locate the pump control solenoid coil to be tested and disconnect the wire
harness connector from the coil.
Outcross 9060
Page 6–73
Electrical System: Electrical Component Testing
18234SL Rev B
Summary of Contents for 07511AA
Page 4: ...Reader Comments Page 4 Outcross 9060 18234SL Rev B ...
Page 18: ...Safety Safety and Instructional Decals Page 1 10 Outcross 9060 18234SL Rev B ...
Page 38: ...Specifications and Maintenance Special Tools Page 2 20 Outcross 9060 18234SL Rev B ...
Page 96: ...Engine Service and Repairs Page 4 24 Outcross 9060 18234SL Rev B ...
Page 208: ...Hydraulic System Service and Repairs Page 5 112 Outcross 9060 18234SL Rev B ...
Page 294: ...Electrical System Service and Repairs Page 6 86 Outcross 9060 18234SL Rev B ...
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