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Wheel Position Switch (Fig. 13)
leads of the switch.
Wheel Position Switch
Aerate (machine lowered)
CLOSED OPEN
Figure 13
1
Test the switch by disconnecting the wire connector and
installing a continuity tester or ohm meter across the two
Transport (machine raised)
NOTE: For proper operation, the switch must be
screwed all the way in. A damaged pivot shaft or bush-
ings could cause the switch to not open and close
properly. Debris in the switch could also cause it to not
open and close properly.
1. Wheel position switch
Aerator Start and Stop (Water Engage and Disengage) Switches (Fig. 14)
The aeration start (ENGAGE) switch is normally open
(N.O.) and closes when the button is pushed down. The
aeration stop (DISENGAGE) switch is normally closed
(N.C.) and opens when the button is pushed down.
Test the switch by disconnecting the wires from the
switch terminals and connecting a continuity tester or
ohm meter across the two switch terminals.
1
2
1
2
Figure 14
1. Aeration start (engage) switch (pink & orange wires)
2. Aeration stop (disengage) switch (gray & white wires)
Hydroject 3010 Page 5 - 19 Testing