Service Procedures
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Machine Adjustments
Watkiss Automatic SpineMaster Service Manual - Edited 17/06/04
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4.7.3 Adjusting the Clamp Open Sensor
The Clamp Open Sensor is mounted on the Bolster, and is only used when the
ASM is initially turned on. This Sensor checks that the Clamp is open to en-
sure that the Bolster is not operating out of phase.
Procedure
1. Switch off the power and disconnect the mains input lead.
2. Remove the Infeed Assembly (see 4.6.1).
3. Locate the Sensor (see Figure 4:18).
4. To adjust the Sensor, loosen both the M5 screws that attach the Sensor
Mount to the Bolster. Set the gap between the Sensor and the Flag to 1mm,
and re-tighten the screws.
WARNING
When operating the ASM with covers removed, be careful of moving compo-
nents and live circuits.
5. To check that the Sensor is positioned correctly, refit the Infeed Assembly
and switch the ASM on. Check that the Clamp is in the open position, and
that the LED on the Sensor (or LED18 on PCB 900-197) is illuminated.
4.7.4 Adjusting Clamp Optical Sensor
If the Clamp fails to operate, it may be because the Clamp Sensor is damaged
or faulty. When a book is placed in front of the Sensor, LED15 on PCB 900-
197 should illuminate. If the LED is lit when no book is present, the Sensor
may be oversensitive.
Check that the Clamp area is free of debris and then try adjusting the Sensor
position (moving the Sensor back can prevent false triggers or reaction to
background reflections). If adjusting the Sensor makes no difference then it
should be replaced (see 4.8.21).
PARTS REQUIRED
TOOLS REQUIRED
None
3mm Allen Key
4mm Allen Key
1mm Feeler Gauge
Figure 4:18 Bolster Open Sensor
Sensor and Flag
PARTS REQUIRED
TOOLS REQUIRED
None
3mm Allen Key
4mm Allen Key
8mm Spanner
