Service manual

SECTION B PREVENTATIVE MAINTENANCE
B.1 Test equipment and tools
• ·Portable Scope Meter
• ·Standard & Metric Hex Wrenches
• ·Small Blade Flat Screwdriver
• ·Philips Head Screwdriver
B.2 General procedures
WARNING!
DO NOT ATTEMPT TO CLEAN THE SMART FEEDER WHEN THE
MACHINE IS RUNNING. ATTEMPTING TO DO SO COULD RESULT IN
INJURY. BE SURE THAT MACHINE POWER IS OFF AT ALL TIMES
WHEN CLEANING.
B.2a Cleaning the machine
The 420T should be cleaned daily to remove any dirt or dust that may
interfere with the operation of the machine. Paper dust collected in motion
areas could impede and/or damage integral parts of the folder. Paper dust
can also impede read quality if it accumulates on the read heads and paper
sensors. Excess dirt or toner build-up (from laser printing) on the feed belts
could result in damage to the material and/or premature wear of the feed
belts. Therefore, it is important to perform the following daily cleaning
instructions:
1. Clean ALL Feed Belts.
2. Remove ALL Paper Dust.
3. Clean the Fold Rollers
4. Clean the Machine Cabinets and Covers.
B.2a1 Cleaning the Fold Rollers
All accumulated paper dust should either be brushed or vacuumed from the
420T. Clean all accumulated paper dust from the electronic paper sensors.
B.2a2 Cleaning the Fold Rollers
DO NOT USE ANY LIQUID ON THE FOLD ROLLERS! The fold plates must
be removed in order to clean all fold rollers. For more information on
cleaning the fold rollers, refer to your 420T Operator Manual.
B.2a3 Machine Cabinets and Covers
Clean the machine cabinets and covers using a soft damp cloth.
B.2a4 Paper Hopper
The feed belt should be cleaned with a sub stance such as isopropyl alcohol
that does not leave a film. Apply some alcohol to a rag then lightly rub all dirt
and film off of the belts.
B.2a5 Singulator
The Singulator must be as clean as possible at all times to insure the proper
feeding and singulation of paper by the feed belt. This may be done first
making sure that the singulator is not worn. If so, loosen the small set screw
on the operator side and rotate the roller to a point where a rounded spot on
the roller will contact the paper.
NOTE: If there is no rounded spot available, the singulator needs to be
replaced immediately.
Once this is accomplished, raise the singulator roller ap proximately 3/4" from
present setting. Pass an alcohol dampened rag under the bottom of the
singulator roller. Be sure that it is making sufficient contact to clean away all
dirt and debris from the contact portion of the singulator roller.
B.2b Lubrication
No lubrication is required on the 420T.
NOTE: If a mechanical component is out of line or deformed, a small amount
of oil may be used as a short term fix (to eliminate noise or binding) until the
component can be replaced.
PREVENTATIVE MAINTENANCE
420T V6LT OPERATOR & SERVICE MANUAL ISSUE 2009/06 Rev. 6/21/2011 SECTION B – PAGE 73
071-33370-400