| 摘要 |
The invention relates to a method of mounting an alarm unit (2) comprising a second connection arrangement (7) and a third connection arrangement (14) in a fixation base (3) comprising a fourth connection arrangement (15) by means of a tool (1) comprising a connection part (4) for connecting with a shaft (5), and a first connection arrangement (6) by engaging said first connection arrangement (6) with said second connection arrangement (7) so as to fixate said alarm unit (2) to said tool (1), putting into contact said alarm unit (2) with said fixation base (3), turning said tool (1) and said alarm unit (2) about a longitudinal direction (12) of said shaft (5) in a first direction (9) so as to engage said fourth connection arrangement (15) of said fixation base (3) with said third connection arrangement (14) of said alarm unit (2), exerting a force on said tool (1) in a direction towards said fixation base (3), and turning said tool (1) about a longitudinal direction (12) of said shaft (5) in the first or a second direction (10) so as to release said tool (1) from said alarm unit (2). |
