Eastsign ROT Series, User Manual

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7. Notice for operation and Maintenance
7.1 Noise
The rollers and bearing may expand and create noise when they are heated to certain temperature. Do not
worry as it is a normal phenomenon.
7.2 Cleaning
Keep clean and tidy so that there is no dirt falling into electric circuit box and transducer. Do not open the
protective case to avoid electric shock.
Oil drum is coated by the material of Teflon, which is of well anti-fouling properties. It cannot be scratched by
knife nor cleaned by acidic chemicals. Oil drum is non-warranty parts.
7.3 Felt
Felt is not a warranty part. Remind your colleagues to operate the machine with good practices.
When there is power failure, use soft paper board or papers (around 2 to 4mm thickness) inserts to the gap
between the blanket and the oil drum. This protects blanket from burning.
For new replaced blanket, stabilizing the size of high temperature resistance blanket is necessary.
temperature value
℃
Working time
140 3 hours
160 2 hours
180 2 hours
200 3 hours (very important)
230 2 hours
PS: The instruction of changing blanket will be in a separated file.
7.4 Heating system
The oil drum was filled heat transfer oil (mineral base, suggested brand name: Total). This is the specification:
Density: 0.83-0.87g/cm3 at 20 oC
Viscosity: 21-31 mm2/s at 50oC
Flash Point (open to air): 173 oC
Distillation range (2%v/v): 340 oC
Maximum temperature at use: 320 oC