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STT40 / STT70
Safety instructions 2-4
2.1.3. Maintenance
Before starting maintenance work, appoint a supervisor.
Inform personnel responsible for the system before beginning maintenance work. Caution:
Danger of accidents!
Disconnect the equipment from main power supply before starting maintenance procedures to
ensure that it cannot be switched on unintentionally. Caution: Danger of accidents!
All pipes, hoses and connections should be checked regularly for leaks and damage. Any faults
which arise should be corrected immediately. Danger of accidents!
Depressurize all compressed air piping before starting maintenance work. Danger of accidents!
Air filters should only be cleaned/replaced when the the main power switch is off and the blower
has stopped. This avoids injury and damage to equipment!
Any maintenance work on the equipment should only be started when the main power switch is
off and the blower has stopped. This avoids injury and damage to equipment!
Check the v-belts of the blower only when the main power switch is turned off and the blowers
have stopped. Caution: Danger of accidents!
Open drying hoppers only if they are completely empty. Danger of accidents!
Never open drying hoppers while the device is in operation. Danger: Injury through burns!
Open drying hoppers only if they have been sufficiently cooled down. Danger: Injury through
burns!
Before beginning maintenance work, wait until the drying cells, drying hoppers and air piping
have cooled down sufficiently. Avoid touching any of these parts! Danger: Injury through burns!
Remove any granules remaining on the ground. Danger of accidents!
Lock the wheels in place after installation if the dryer is mounted on a movable frame. This will
prevent danger to people and material!