Wayne Dresser Vista 1 Series Service Manual page 82

7.2.6. Check and Pressure Relief Valve Replacement,
3. Remove the two (2) meter seal o-rings (the larger o-ring on the inlet and the
4. Remove the check pressure relief valve.
5. Install the new valve and replace the o-rings with new ones.
Note: Do not pinch the o-rings against the meter support.
6. Install the meter to the meter support using the four (4) bolts removed in
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Part No. 920160 Rev A
smaller o-ring on the outlet.
Step 1 above.
continued
February 1997