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.
The fuel tank filler cap vent valve must be in the open position during operation of the generator set.
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 damage.
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 unreadable lettering. 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.
WARNING 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.
Figure 3-17. - Fuel filler cap and strainer.Continue Reading