Operating Manual
Chapter 6, Warranty, Maintenance and Troubleshooting
3. Remove the pump cover or calibration cap, if installed.
4. Remove the sensor cover and sensors.
5. Remove the four remaining case mounting screws from the
back of the case.
When removing the back of the case, be careful not to pull
the pump wires from the connector. Use minimum force
necessary to disengage this connector to prevent breakage.
6. Remove the pump connector. Observe polarity; the red wire
should be toward the center of the circuit board.
7. Disconnect the pump outlet tube; place a small, flat
screwdriver at the base of the tube and gently pry the tube
away from the barb.
8. Remove the firewall filter and discard.
9. Install the new firewall filter (27) with flow arrow pointing
toward the pump and drive inlet. Ensure that the tube from
the pump outlet is routed to the inside of the firewall filter.
10. Position the rear case 90 degrees up from the front case;
route the pump outlet tube between the pump and the
in-line filter and connect it to the barb protruding through the
circuit board.
11. Connect the pump cable.
NOTE: Be careful to use proper polarity; the red wire should
be toward the center of the circuit board.
12. Replace and secure the back of the case with the four
mounting screws.
13. Replace the battery pack and two mounting screws securing
the battery pack.
14. Completely recalibrate the Orion Multigas Detector.
Verification of calibration response is required; otherwise,
the instrument will not perform as required, and persons
who rely on this product for their safety could sustain serious
personal injury or death.
" CAUTION
" WARNING
6-5