Horn Assembly Replacement; Pump Replacement - MSA Orion G Mode D'emploi

Operating Manual Chapter 6, Warranty, Maintenance and Troubleshooting
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.

Horn Assembly Replacement

The Horn Assembly must be replaced at an authorized factory
service center.

Pump Replacement

Before handling the circuit boards, ensure you are properly
grounded; otherwise, static charges from your body could
damage the electronics. Such damage is not covered by
the warranty. Grounding straps and kits are available from
electronics suppliers.
1. Turn OFF the power.
2. Remove the battery pack from the instrument by removing the
bottom two screws on the back of the case.
3. Remove the four remaining case mounting screws from the
back of the case.
4. 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.
5. Note the routing of the tubing within the back case. It is very
important that the tube be re-routed in this position during
re-assembly.
6. 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.
7. Remove the mounting screw and disc which retains the pump.
8. Remove the pump; gently pry the tube from the inlet of the
firewall filter.
9. Install the new pump; re-install the mounting screw and disc,
and attach the tube to the new firewall filter.
" WARNING
" CAUTION
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