Electrical Control Coupler Switch - Testing (J.80.C.90.81 - G.40.A.20); 435, 445, 445Ct - Case 445CT Repair Manual

Electrical control Coupler switch - Testing (J.80.C.90.81 - G.40.A.20)

435, 445, 445CT

NOTE: For wiring diagram refer to Wiring harness - Electrical schematic frame 15 (A.30.A.88 - C.20.E.15)
N° Test Point
1 Turn the key switch to the ON
position.
Terminal for wire 540A (R) to
ground.
2 Have another person place the
hydraulic coupler switch in the un
latch position.
Terminal for wire 547B (T) to ground.
3 Have another person place the
hydraulic coupler switch in the
unlatch position.
TOOLS AND COUPLERS - COUPLING Hydraulic coupling
12 volts
12 volts
0 volts
Expected Result
1 04/05/2005
J.80.C / 20
Other Result (Possible Cause)
Check the circuit between the
hydraulic coupler switch and the 10
amp fuse in the options fuse block.
Also check the 10 amp fuse in the
options fuse block.
Bad hydraulic coupler switch.
Bad hydraulic coupler switch.