NORAC UC4.5-BC-EV1 - Manual (Page 11)

8
4 Existing System Check
1. Before beginning the install, ensure all hydraulic boom functions are operating properly on
the sprayer.
 All Fold Functions
 Main Lift Function
 Wing Tilt Functions
 Slant Function
2. Inspect slide pads and wear surfaces for excessive wear. Replace or adjust if necessary.
3. Ensure the boom guide-rods are set to the “tapered” position (factory setting).
4. Set boom suspension to be critically damped (Figure 5). Adjust the boom damper
accordingly.
a. Unlock the pendulum, and push boom tip down approximately 75 cm (30 inches).
b. Hold the boom steady for a moment, and release.
c. Ensure the boom returns to its relaxed state as quickly as possible, with little to no
overshoot.
Figure 5: Boom Push Test- Critically Damped