Ricoh D131 Service Manual page 1389

After installation, maintenance, or adjustment, always check the operation of the
machine to make sure that it is operating normally. This ensures that all shipping
materials, protective materials, wires and tags, metal brackets, etc., removed for
installation, have been removed and that no tools remain inside the machine. This
also ensures that all release interlock switches have been restored to normal
operation.
Never use your fingers to check moving parts causing spurious noise. Never use
your fingers to lubricate moving parts while the machine is operating.
Special Tools
Use only standard tools approved for machine maintenance.
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
Before you begin a maintenance procedure: 1) Switch the machine off, 2)
Disconnect the power plug from the power source, 3) Allow the machine to cool for
at least 10 minutes.
Avoid touching the components inside the machine that are labeled as hot surfaces.
Safety Devices
Never remove any safety device unless it requires replacement. Always replace
safety devices immediately.
Never do any procedure that defeats the function of any safety device. Modification
or removal of a safety device (fuse, switch, etc.) could lead to a fire and personal
injury. Always test the operation of the machine to ensure that it is operating
normally and safely after removal and replacement of any safety device.
For replacements use only the correct fuses or circuit breakers rated for use with
the machine. Using replacement devices not designed for use with the machine
could lead to a fire and personal injuries.
Organic Cleaners