June 2021 Service and Repair Manual
Steer Axle Components
Part No. 1306587GT GS
™
-84 • GS
™
-90 103
Oscillate Raised Relay K12
Terminal 30 of the Oscillate Raised relay, K12,
receives power from the Power relay, K2. When
power is cut to terminal 86 of K2 via key switch or
either Emergency Stop button, power to terminal
30 of K12 will be lost.
Terminal 86 of K12 receives power from pin J1-
A4 while driving is engaged and the ECM is
powered.
J1-A4 is disabled when an outrigger is lowered to
the ground.
Oscillate Limit Switches S50, S51
The right and left oscillating limit switches,
S50 and S51 respectively, are normally closed
limit switches, held in the open position when the
machine is on a level surface.
When the left rear or right rear wheel 'drops', the
limit switch will relax and close its circuit, sending
power to the appropriate oscillating valve coil.
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