the drain valve when clear fuel runs out of the tank.
Reinstall the cap on the valve.
Remove the fuel filler cap and strainer, as shown in
figure 3-17. Check the cap vent valve for proper
opening and closing.
Inspect the strainer for holes,
breaks, and tears. Also, inspect the parts for cracks,
breaks, and other damage. Install the cap and strainer,
as shown in figure 3-17.
NOTE: The fuel tank filler cap vent valve must be
in the open position during operation of the generator
10. Ether system. Inspect the ether system (used to
aid cold-weather starting). The ether cylinder is
strapped to the day tank. Look for broken wires, loose
connections, corrosion, and any other signs of obvious
11. Set controls and instrumentation. Inspect
meters and gauges at the control cubicle (fig. 3-15) for
bent pointers, broken glass, unreadable dial faces, and
restricted movement of pointers. Clean gauges and
meter faces with a lint-free cloth.
Check for broken indicator lenses and for
Set the panel light to ON; the
panel lights should light.
Check all switches for positive action; each switch
should snap from one position to the next.
The operator can use his or her senses to detect
many potential problems. The operator may smell
overheated insulation, hear peculiar noises, see an
indicating light signaling a fault, or feel unusual
vibrations from the generator or engine.
Operator maintenance requirements vary with
different types of generators. General operator
inspections and tasks are as follows:
1. Oil level. Frequently, check the appropriate oil
level. Add oil as needed to maintain the required level.
(Intervals between oil checks and changes will vary for
abnormal operation and severe conditions.)
2. Batteries. Check the electrolyte level and add
water to maintain the required level.
3. Exhaust and breather systems.
Components of both the exhaust and
crankcase breather systems (muffler, pipe,
tube, and hose) become extremely hot during
generator set operation. Do not handle any of
them while they are hot.
Inspect the muffler for holes, dents, signs of
extreme corrosion, and metal deterioration. Also, check
Figure 3-17.Fuel filler cap and strainer.