Generac Power Systems GTH760, Service Manual

Page: 26 / 76

Figure 3-28. Install Secondary Diaphragm
Figure 3-29. Install Secondary Cover
18. Draw a bubble of leak detector over the “OUTLET” port.
The bubble should hold for several seconds with the
regulator inlet pressurized. Return to step 10 if the bubble
doesn’t hold for several seconds. See Figure 3-30.
19. Remove air pressure supply and primary pressure test
gauge. Replace the 1/8” pipe plug in the primary pressure
test opening. See Figure 3-31.
20. Install the regulator.
a. Clean all threaded areas and use a commercially available
pipe sealant. Make sure sealant does not get inside of
the regulator.
b. Connect LP line(s), reconnect battery and turn on fuel
supply at the tank(s).
c. Turn ignition switch to the "ON" position to verify that
the solenoid is opening.
d. Check all fuel connections with a leak detector. If leaks
are present, go back to Step 20a.
e. Run the engine until it is at full operating temperature.
21. Repair is now complete.
Figure 3-30. Check Outlet Port
Figure 3-31. Re-install Pipe Plug in Test Opening
3-10
SeCTIoN 3: CArbureTIoN ANd Fuel SYSTeM