8-4 SERHT50NA A0808
ELECTRONIC & PNEUMATIC COMPONENT REMOVAL & REPLACEMENT
Caution The HT50 ventilator contains an internal sealed lead
acid battery. After replacing the battery, be certain to recycle or
dispose of it properly.
Removal of the Secondary Internal Battery
1. Remove lower case assembly. See above steps
2. Disconnect the 2 cables on the dual pack battery circuit board
connecting the NiMH battery to the circuit board. See figure 8-
3
3. Remove the 2 ea. Phillips screws securing the NiMH battery
pack to the NiMN battery bracket. See figure 8-4
4. Install the new NiMH battery by reversing the above steps.
NOTE: The NiMH battery comes with a thermal pad already
installed.
Be sure to install the NiMH battery so the thermal pad is
not facing the NiMH bracket.
Figure 8-3
Two Connectors
Disconnected
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