Wexxar WF30T, Operation And Service Manual

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WF30T Case Former Troubleshooting & Repairs
- 10-103 -
10.5 Tape Applicator Troubleshooting
Comprehensive information on the set-up, operation, and maintenance of the adhesive system on
the WF30T is contained in the separate Dekka Tape Head Manual supplied with this machine.
10.6 Pneumatic Troubleshooting
The pneumatic system of your WEXXAR Case Former is designed to give long, trouble-free
service. Most pneumatic problems can be avoided by ensuring that the machine receives a
supply of clean, dry air. The following tables demonstrate the potential issues associated with the
components incorporated into the WF30T. Some common problems are as follows:
Table 51: General Pneumatic Troubleshooting
Problem Possible Cause Solution
Machine
becomes
sluggish in
operation
Inadequate air
supply to the
cylinders
Verify that main regulator is set at 90 PSI and jaw
regulator and mast regulator are set to 70 PSI.
Check the inlet filter and replace it if necessary.
Check settings of flow controls on solenoid
valves. Refer to Section 2.6.1:
‘Compressed Air’
to ensure that an adequate volume of air is
supplied.
Constant
leakage from
air-cylinder
rod seals
Wear of seal
and/or piston rod
bushing
Replace or repair cylinder. Seal kits are available
for all cylinders except for the disposable type.
Replace solenoid valve, or strip and clean the
solenoid air pilot actuated valve assembly.
Erratic
solenoid
valve
Varnish buildup in
solenoid air pilot
actuated assembly
of solenoid valve
Note:
Use only non-abrasive non-chlorinated
solvents such as mineral spirits.
Table 52: Forming head too slow; jaw speed normal
Problem Possible Cause Solution
Overheating /
Too cold Usually caused by high / low
ambient temperature When ambient temperature is
over 40° or below 0° centigrade.
Adjust the regulator’s set point.
Mast cylinder: 70 PSI.
Low Air
Pressure
Regulator set point too low
Air pressure at machine’s
main regulator: 90 PSI.
Auto drain of the filter is
not working; water
accumulated in the cup is
not discharged Drain the water in the filter
cup and fix the auto drain
valve or replace the filter
cup.
Water
Condensation
Too much water in the air
supply Dry the air before it enters
the machine.