Special Tools 
CAUTION 
1.  Use only standard tools approved for machine maintenance.  
2.  For special adjustments, use only the special tools and lubricants described 
in the service manual. Using tools incorrectly, or using tools that could 
damage parts, could damage the machine or cause injuries.  
 
 
During Maintenance 
General 
CAUTION 
1.  Before you begin a maintenance procedure, always: 
•  Switch the machine off. 
•  Disconnect the power plug from the power source. 
2.  Avoid touching the components inside the machine that are labeled as hot 
surfaces. 
Safety Devices 
 WARNING 
1.  Never remove any safety device (a fuse, thermistor, etc.) unless it requires 
replacement. Always replace a safety device immediately. 
2.  Never do any procedure that defeats the function of any safety device. 
Modification or removal of a safety device (fuse, thermistor, etc.) could cause 
a fire and personal injury. After removal and replacement of any safety 
device, always test the operation of the machine to ensure that it is operating 
normally and safely. 
3.  For replacement parts use only the correct fuses, thermistors, circuit 
breakers, etc. rated for use with the machine. Using replacement devices not 
designed for use with the machine could cause a fire and personal injuries.