2. MAJOR UNIT REPLACEMENT
EO18-33011
2.1 LUBRICATION
2- 1
2. MAJOR UNIT REPLACEMENT
In this document all procedures for the major unit replacement are explained using the B-492L type.
The B-492L type and the B-492R type are symmetrically designed, however, the orientation or location
of some parts are different. Care must be taken not to reassemble the printer incorrectly. Failure to do
this may cause a printer failure.
Also, take care not to pinch the harnesses with the covers when reassembling.
2.1 LUBRICATION
All machines are generally delivered in their best condition. Efforts should be made to keep them that
way. Lack of oil, or the presence of debris or dust, may cause an unexpected failure. To maintain in
optional operating condition, periodically clean the machine and apply the proper kind of oil to each
part in which lubrication is needed.
Although the frequency of lubrication varies according to how often the machine is used, as a minimum
it is necessary to lubricate before any part becomes dry. It is also necessary to wipe off excessive oil
or it will collect dirt.
WARNING!
Prior to major unit replacement, turn OFF the power of the Power Supply Unit and disconnect the
AC Power Cord. Then, disconnect the DC Power Cord from the printer.
CAUTION!
1. Lubrication: Should be performed during parts replacement
2. Type of lubricant: FLOIL G-488: 1 Kg can. (Parts No. 19454906001)
3. Do not spray the inside of the printer with lubricants. Unsuitable oil can damage the mechanisms.
CAUTION!
1. Never remove the mounting plate from the ribbon motor (Feed). Doing so will change its
adjustment. (See Section 2.8.)
2. Never remove the four screws painted red on the side of the print block. Doing so will change
their adjustment.
Side view of the print block
NEVER remove these screws.
Fig. 2-1
