Teledyne First Responder CG User Handbook Manual page 62

In-line Dust Filter (Accessory)
To replace the Dust Filter in the Dust Filter Housing assembly,
proceed as follows:
1. Unscrew the filter housing assembly (Figure 5-10).
Probe Sealing Washer
Fig. 5-10 Dust Filter Assembly
2. Remove Dust Filter, then discard.
3. Check Probe Washer and Probe Sealing Washer for
signs of damage or wear and replace if necessary.
4. Fit new Dust Filter.
5. Reassemble the Filter Housing assembly.
5-10
FIRST RESPONDER CG - USER HANDBOOK
Probe Washer
Dust Filter Housing Assembly
Dust Filter