Wexxar WF30T, Operation And Service Manual

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WF30T Case Former Machine Maintenance
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9.4.14 Proximity Sensors
Two types of proximity sensors are used
on the WF30T case former: inductive and
infrared photo-type. The majority is of
the inductive type; they sense the
presence of a steel component by
magnetic effects and are mostly used to
sense the position of the machine
mechanisms. It is important that these
sensors be the correct distance from the
metal ‘flag’ that causes the sensor to
trigger. See Figure 9-2.
Infrared type sensors are used to detect the presence of the corrugated case, and are used at
LS-7, LS-11, LS-13, LS-14, LS-15, and LS-16. These sensors are sensitive to background
objects, so they should be checked to ensure that they are not ‘seeing’ objects other than the
target. The sensitivity is adjusted by rotating the adjustment screw on the back of the respective
sensor. Place the target at the correct range, and turn the screw until the indicator light comes
ON solidly and goes out positively when the target is removed.
9.4.15 Flap Folder Assemblies
Verify the following items on the flap folder assemblies:
1) Inspect all 4 cylinders.
2) Examine oilite flange bushings and axles on the majors.
3) Examine oilite bushings on minors and guide rods.
4) Inspect gibs on L/H major.
5) Examine LS-7 and LS-8 and their cables for any damage.
Check the ‘S’ box for Satisfactory Performance and ‘US’ box for Unsatisfactory Performance.
Table 41: Flap Folder Maintenance
Major and Minor Flap Folder Assemblies S US
Inspect all 4 cylinders.
Examine oilite flange bushings and axles on the majors.
Examine oilite bushings on minors and guide rods.
Inspect gibs on L/H major.
Examine LS-7 and LS-8 and their cables for any damage.
Figure 9-2: Inductive Sensor Adjustment Range