Sterling 882.00294.00 ユーザーズマニュアル

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Every effort has been made to incorporate these standards into the design of the drying 
system; however, it is the responsibility of the personnel operating and maintaining the 
equipment to familiarize themselves with the safety procedures and the proper use of any 
safety devices. 
Fail Safe Operation 
If a safety device or circuit should fail, the design must be such that the failure causes a 
“Safe” condition. As an example, a safety switch must be a normally open switch. The switch 
must be held closed with the device it is to protect. If the switch fails, it will go to the open 
condition, tripping out the safety circuit. 
At no time should the safety device fail and allow the operation to continue.  For 
example, if a safety switch is guarding a motor, and the safety switch fails, the motor should 
not be able to run. 
Safety Device Lock-Outs 
Some safety devices disconnect electrical energy from a circuit. The safety devices that are 
used on this equipment are primarily concerned with electrical power disconnection and the 
disabling of moving parts that may need to be accessed during the normal operation of the 
machine. 
Some of the safety devices utilize a manual activator.  This is the method of initiating the 
safety lock out.  This may be in the form of a plug, lever or a handle.  Within this lockable 
handle, there may be a location for a padlock.  Personnel servicing the equipment should 
place a padlock in the lockout handle. 
In addition to the safety devices listed above, these dryers are equipped with a line cord plug.  
This allows the operator or maintenance personnel to unplug the dryer from its power source 
and tag it out.  The plug can then be tagged with any number of approved electrical lockout 
tags available at most electrical supply stores. 
WARNING!  Always disconnect and lockout all electrical power and pneumatic (i.e. compressed air) 
sources prior to servicing or cleaning this equipment. Failure to do so may result in 
serious injury. No one but the person who installed the lockout may remove it. 
 
 
Portable Drying/Conveying Systems 
Chapter 2:  Functional Description 
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