Nordson Spectrum II S2-900 C Series, Installation, Operation And Maintenance Manual

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Calibration and Adjustment 5-11
5.9 Adjusting the Z-Head Counterbalance Force
The Z-head Counterbalance Force prevents the Z-head (dispensing head) from crashing down upon
disengagement of the motor. It can be set to accommodate various payloads.
To adjust the Z-head counterbalance:
1. Power down the system as described in 4.13 System Shutdown .
2. Disconnect the camera and light source cables.
3. Remove the four (4) screws securing the camera and bracket to the Z-head and carefully
remove the camera and bracket (Figure 5-12) and place to the side.

NOTE
If the dispensing head is configured with a tactile height sensor assembly, it is
not necessary to remove it to adjust the Z-head counterbalance force.
.
Item Description
1 Camera Bracket
2 Bracket Mounting Screws
Figure 5-12 Removing the Camera and Height Sensor
4. Loosen the Z-head Counterbalance Force adjustment screw (Figure 5-13).
5. Slide the screw assembly to the desired position. See Table 5-1.
6. Tighten the Z-head Counterbalance Force adjustment screw.
1
2 4x