G- Disassembly & Reassembly Instructions; Rear Panel; Battery Removal & Replacement - BIO-MED DEVICES CROSSVENT-3+ Operation & Service Manual

IX. MAINTENANCE AND SERVICE- cont.
G G G G - - - - DISASSEMBLY & REASSEMBLY INSTRUCTIONS DISASSEMBLY & REASSEMBLY INSTRUCTIONS DISASSEMBLY & REASSEMBLY INSTRUCTIONS DISASSEMBLY & REASSEMBLY INSTRUCTIONS
WARNING: High voltage is present at the backlight connector (JBL) when power is
on.
CAUTION: All safety measures must be observed when servicing this device.
particular, the ventilator must be turned off and the power supply disconnected.
CAUTION: With the PC Board removed, great care should be taken to protect the board
from stray voltages, static electricity, and any other environmental concerns that may
damage the board. Always handle the board with care and be sure you and your work
surface are properly grounded.
Note: Prior to disposal of any component, with particular attention to the battery and PCB, check with your
local controlling authority for disposal regulations.

1. REAR PANEL

1. REAR P ANEL
1. REAR P 1. REAR P ANEL ANEL
1. Remove the four (4) long screws located around the perimeter of the rear panel. These extend to
the front bezel.
2. Remove the rear panel.
3. Reverse order to re-install. Be sure the battery cable grommet is set properly into the notch in the
battery compartment and no other wires or tubes are in a position to be pinched when the panel is
installed.
2. BATTERY REMOVAL & REPLACEMENT 2. BATTERY REMOVAL & REPLACEMENT
2. BATTERY REMOVAL & REPLACEMENT 2. BATTERY REMOVAL & REPLACEMENT
CAUTION: Only replace the battery pack with Bio-Med Devices part #PRT4467. Do not
substitute.
NOTE: After installing a new battery, it must be discharged, the battery gauge must be reset in the calibration
menu and the battery then fully charged as outlined in this procedure.
1. Remove the rear panel.
2. Remove the grommet on the battery wires from the notch in the battery compartment and lift the
battery out of the battery enclosure. Unplug the battery connector.
3. Verify four 1/16" rubber pads similar to those supplied with
the new battery are adhered to the bottom (side closest to
the PC Board) of the battery enclosure. Replace any that are
missing with those supplied so that they will be under the
center of each corner cell of the battery pack when it is
installed. There should also be two 1/8" thick pads on the
inside of the rear panel within the cutout in the battery
enclosure gasket. Replace any that are missing as illustrated
here.
4. Place the battery in the enclosure so that the label on the
battery is facing the rear panel.
5. Plug the connectors together outside the enclosure and
work the grommet on the wire into the notch in the side
of the enclosure.
6. Replace the rear panel and four screws. Take care that the grommet remains in the notch when the
panel is replaced and no wires or tubing are pinched.
If this is a new battery or a battery other than the original battery, then proceed with the following steps
to discharge the battery, zero the gauge and then recharge the battery. This must be done to re-program
the battery gauge to the newly installed battery.
7. Turn on the Crossvent. Be sure the external power supply is not connected to the unit. If the unit
will not power on without the external power supply, then go to Step 11.
8. When the MAIN menu appears, press the SETUP key in the lower right of the display and then
press the CAL MENU key.
9. Press VALVES and turn each valve on by pressing OFF next to them.
In
Adhere pads as shown
1/8" thick
1 1/2"
FIG. 15- BATTERY PADS
¾"
59 59
59 59