SkyTrak 3606 Service Manual - Manual (Page 387)

Electrical System
10-69 Model 3606 • Origin 10/99
10.8.14 Logic Board Panel
The logic board or side console panel (Fig. 10–80; see
also Fig. 10–76 and Fig. 10–77) is secured to the right
side dash panel, in front of the joystick. The panel con-
sists of a solid-state printed circuit board and various
indicators that illuminate per joystick, attachment tilt, and
auxiliary hydraulics selections.
Figure 10–80. Joystick and logic panel locations.
The logic board panel is of solid-state, printed circuit
design and contains a wiring terminal or plug (Fig. 10–76
and Fig. 10–77), a printed-circuit board and a display
panel that provides monitoring of joystick, attachment tilt
and auxiliary hydraulics functions and status.
Due to the complex design and solid-state circuitry, the
panel is non-serviceable. Electro-static discharge is one
of the main reasons for panel malfunction. Prevent the
panel from coming into contact with static or other electri-
cal sources. When washing the vehicle, keep spray away
from the logic board panel. Replace a defective, malfunc-
tioning or faulty panel with a new unit.
The logic board panel provides important information in a
“user-friendly” design with easily-recognizable graphic
and arrow indicators. The panel provides information the
operator needs on joystick, attachment tilt and auxiliary
hydraulics functions at any given time.
The panel (Fig. 10–76 and Fig. 10–77) is mounted with
four button-head capscrews and well nuts for easy
replacement.
10.8.15 Boom Sensor (Proximity Switch)
The boom sensor (Fig. 10–81) is a proximity switch
located inside the rear cover on the top left of the frame.
When energized, the sensor creates a magnetic field and
detects the presence of the boom, as the boom is raised
or lowered past the sensor. Depending on conditions
(including boom raised above or below 40 degrees, park
or service brakes ON or OFF, Stabil-TRAK engaged or
not, etc.), the boom sensor and its electrical circuitry will
either allow or disallow certain hydraulic functions.
Figure 10–81. Boom proximity switch location.
Boom Sensor Replacement and Adjustment
The sensor is easily removed by disconnecting the wire
lead from the wiring harness connector, removing the
sensor mounting nut, and removing the sensor from the
vehicle.
To install and adjust a boom sensor:
1. Place the sensor into the mounting bracket as shown
in Fig. 10–81.
2. Adjust the sensor to achieve a 1/4” to 3/8” (6,4 to 9,5
mm) gap between the sensor and the boom.
3. Connect the wiring harness lead, then tighten the
sensor mounting nut to 36-inch pounds (4 Nm).
4. Operate the boom through its full range of motion;
the boom must NEVER touch the sensor.
5. Check the function of the Stabil-TRAK system as
described in Section 10.8.16 Stabil-TRAK System.
OS0151
Multi-function
Joystick
Logic Panel
MS2420
Proximity Switch
Sensor-to- Outer
Boom Gap
1/4” to 3/8”
(6,4 to 9,5mm)
(see text)