Maintenance 6. Maintenance Parts Replacement Procedures
RC180 Rev.17 163
Secure a backside cover to Option Unit 1 with
two screws.
the cover so that there is no gap when
Be sure to keep the cable from being trapped or
damaged.
Remove two screws each on the front
side and backside and remove Option
Unit 2 in
the direction shown by the
When replacing Option Unit 2.
The removal procedure is complete.
When Option Unit 2 in not used.
Perform steps (7) to (9).
Remove four screws and remove the Option
Unit mounting bracket from the Option Unit
1.
Option Unit
Mounting
Brackets
Remove the Option Unit 2 filter units (two places).
Maintenance 6.1.3 Cleaning and Replacing Fan Filter
Mount the fan filters (two places) to Option
Unit 1.