Toro Groundsmaster 4300-D Service Manual page 282

Testing the Lower/Raise Joystick Switches (continued)
Electrical System: Testing the Electrical Components
3. If the InfoCenter verifies that the joystick switches and circuit wiring are
functioning correctly, no further switch testing is necessary.
4. If the InfoCenter determines that the joystick switches and circuit wiring are
not functioning correctly, proceed with the test.
5. Remove the control arm covers to get access to the joystick switches; refer
to Disassembling the Control Arm (page
6. Ensure that the key switch is in the O
harness electrical connectors from the raise and lower switches on the
joystick assembly.
7. Connect a multimeter (ohms setting) across the switch connector terminals
to check the continuity of the switches as follows:
A. With the joystick in the N
between the common and normally closed (NC) terminals.
B. With the joystick in the R
(lower switch) continuity should only exist between the common and
normally open (NO) terminals.
8. Replace the switch if testing determines that the switch is damaged.
9. If the switch testing is correct and a circuit problem still exists, check
the wire harness; refer to the Electrical Schematic and Wire Harness
Drawings/Diagrams in
10. After you complete the testing, connect the wire harness connectors to the
joystick switches.
11. Secure the control arm covers to the machine; refer to
Control Arm (page
6–24).
position. Disconnect the wire
FF
position, continuity should only exist
EUTRAL
position (raise switch) or L
AISE
Appendix A (page A–1).
6–24).
Page 5–58
position
OWER
Assembling the
Groundsmaster ® 4300-D
16226SL Rev C