Jacobsen AR3, Technical/Repair Manual

Page: 121 / 342

4-64 4181384 First Edition
ELECTRICAL
4
Brake Safety Switch Test
See Figure 4-34.
1. Park the mower safely. (See “Park Mower Safely” on
page 1-7.)
2. Remove the brake safety switch from the machine.
(See “Brake Safety Switch” on page 4-82.)
Figure 4-34
3. Connect test leads to the switch terminals (2 and 3).
4. Check for continuity.
Is continuity indicated?
YES The switch is faulty; replace the switch.
NO Proceed to step 5.
5. Press and hold the plunger (1) down and check for
continuity.
Is continuity indicated?
YES The switch is good.
NO The switch is faulty; replace the switch.
Joystick Test
See Figure 4-35.
1. Park the mower safely. (See “Park Mower Safely” on
page 1-7.)
2. Remove the joystick from the instrument panel. (See
“Joystick” on page 4-82.)
Figure 4-35
3. Connect test leads to terminals (2 and 3) and check
continuity.
Is continuity indicated?
YES The switch is faulty; replace the joystick
assembly.
NO Proceed to step 4.
4. With the test leads connected as described in step 3,
move and hold the joystick in the lower position.
Is continuity indicated?
YES Proceed to step 5.
NO The switch is faulty; replace the joystick
assembly.
5. Return the joystick to the center (neutral) position.
6. Connect test leads to terminals (4 and 5) and check
continuity.
Is continuity indicated?
YES The switch is faulty; replace the joystick
assembly.
NO Proceed to step 4.
Required Tools or Equipment
Digital Multimeter, Ohmmeter, or Continuity Tester
Required Tools or Equipment
Digital Multimeter, Ohmmeter, or Continuity Tester
1
TN1159
2
3
TN1098
1
3
2
5
4
Raise
Lower
Raise
Switch
Lower
Switch