User manual

6 WLS-C Wheel Loader Scale
Figure 1-13. Sensor Mounted at Recommended Angle; Rubber Gasket Highlighted
4. Place the copper o-ring between the sensor and fitting (with the smooth side towards the sensor) and
tighten the sensor with a crescent wrench.
5. Once the sensor is mounted, the hydraulic line can be bled.
6. After starting the machine, partially loosen the sensor.
7. Wait until fluid leaks out without any air bubbles before tightening it down.
8. Route wire back to the cab. Route along a stationary area; tying to existing electrical lines is
recommended.
9. Tie off excess wire in an open area of the wheel loader.
10. Check for leaks again after running the machine for a short period of time.
1.3 Proximity Sensors Installation
Positioning the proximity sensors is extremely important for the accuracy of weighing during the lifting stage.
You must make sure you install them in such a way that the lifting reference notch activates the first proximity
switch, and that it remains active even when the second has been activated.
If the weighing system is running properly, the acoustic indicator will go off after the second proximity has been
reached. This means a measurement has been made. On the other hand, when the vehicle arm is coming down, it
must first activate the second proximity, and then the first. This is so weighing takes place only during lifting and
not lowering.
In forklift trucks, the distance between the two must be about 20 cm, given the speed at which the forks rise.
This layout has been tested on many different models, and has been seen to be the best, because hydraulic
pressure tends to remain more stable and give a greater proportional increase. For forklifts, we suggest you place
the first switch 40–50 cm above the lowest point. See Figure 1-15 on page 7
NOTE: The proximity switch cannot read if positioned more than 5 mm away from the reading plate. You should always
try to place them about 2–3 mm apart.
Rubber gasket