6-11
2. Disconnect the two tubes from the total flowmeter. Unscrew the six screws. Take out
the check ring and washer for the total flowmeter to remove the flowmeter, as shown
below.
The following picture shows the appearance of total flowmeter.
6.2.10 Disassemble the Gas Supply Inlet Assembly
1. Disconnect the gas tubes from the gas supply inlet assembly. Disconnect the
connection line from the pressure switch. Unscrew the four screws to remove the gas
supply inlet assembly, as shown below.
Total flowmeter
check ring
Total flowmeter washer
Remove the tubes