MANIFOLD HEATER OPERATIONAL CHECK (Sheet 2 of 2)
At driver's station on master control panel (B) set FUEL PUMPS switch (C) to OFF (down) and
MASTER BATTERY switch (D) to ON (up).
Press STARTER BUTTON (E) and at same time operate purge pump handle (F) while pressing
heater button (G) on end of handle.
Check system for leaks. Correct as necessary.
Check that heater is operating. Heat will be felt at intake manifold heater tube. If no heat is
felt, troubleshoot and correct (page 4-1).
When checks are complete, stop operating purge pump handle (F). Hold ENGINE FUEL
SHUTOFF switch (H) to OFF. Set MASTER BATTERY switch to OFF (down).
Disconnect engine from powerplant test run hookup (page 5-62).
Install 2A powerplant (page 5-14) or 2D powerplant (page 5-37).
End of Task