Q155 Service Manual
4-12
Figure 4-19 Remove ON/OFF switch
4.9.2.
ON/OFF Power Switch Installation
Follow the removal procedure for the ON/OFF power switch in reverse order to
install a new power switch.
4.10.
Oxygen Monitor LED Replacement
i.
Set the unit's ON/OFF switch to the
OFF
position, and unplug the power cord.
ii.
Remove the cabinet and control panel inside.(See section 4.2.1)
iii.
Disconnect Oxygen Monitor LED connector. (See Figure 4-20)
iv.
Loose the screws and remove LED. (See Figure 4-20)
v.
Install the new LED into the control panel, and tighten the screws.
vi.
Reconnect the LED connector.
vii.
Install the control panel and the cabinet.
Figure 4-20 Oxygen monitor LED connector
4.11.
Hour Meter Replacement
i.
Set the unit's ON/OFF switch to the OFF
position, and unplug the power cord.
ii.
Remove the cabinet and control panel inside. (See section 4.2.1)
iii.
Disconnect the terminal of hour meter from control board. (See Figure 4-21)
iv.
Push both sides of hour meter tabs away from the central frame. (See Figure
4-)
v.
Remove the hour meter
vi.
Install the new hour meter into the central frame.
Screws