MAINTENANCE
7-8
Pump Replacement
1. Turn off the MiniRAE 2000 power.
2. Open the battery cover, remove the battery pack
,
and
carefully unscrew the six screws to open the bottom
cover.
3. Unplug the pump from the PCB. Unscrew the two
screws that hold the pump assembly to the PCB.
Disconnect the Tygon tubing that connects the pump to
the gas inlet port and gas outlet port.
4. Insert a new pump assembly. Connect the Tygon tubing
to the gas inlet port. Plug the pump connector back into
the PCB and screw down the pump assembly to the
board.
5. Replace the bottom cover and tighten the six screws.
Re-connect the battery pack. Replace the battery pack
and its cover.