Product Manual

TP-6905 7/18 59Section 4 Scheduled Maintenance
softened water to inhibit rust/corrosion and prevent
freezing. The coolant capacity is shown in
Figure 4-5.
3. Operate the engine with the radiator cap removed
until the thermostat opens and the upper radiator
hose becomes hot.
4. Stop the engine and allow it to cool.
5. Add coolant to the radiator to just below the
overflow tube on the filler neck. See Section 1,
Service Views, for the overflow tube location.
6. Replace the radiator’s pressure cap.
7. Maintain the coolant level in the coolant overflow
bottle between the Hot and Cold markings. See
Section 1, Service Views, for the coolant overflow
bottle location.
4.7 Ignition System
Airborne particles.
Can cause severe injury or
blindness.
Wear protective goggles and clothing
when using power tools, hand tools,
or compressed air.
WARNING
Accidental starting.
Can cause severe injury or death.
Disconnect the battery cables before
working on the generator set.
Remove the negative (--) lead first
when disconnecting the battery.
Reconnect the negative (--) lead last
when reconnecting the battery.
WARNING
Disabling the generator set. Accidental starting can
cause severe injury or death. Before working on the
generator set or equipment connected to the set, disable the
generator set as follows: (1) Press the generator set off/reset
button to shut down the generator set. (2) Disconnect the
power to the battery charger, if equipped. (3) Remove the
battery cables, negative (--) lead first. Reconnect the negative
(--) lead last when reconnecting the battery. Follow these
precautions to prevent the starting of the generator set by the
remote start/stop switch.
Service the spark plugs at the interval specified in the
service schedule using the following procedure.
1. Press the OFF button on the RDC2 controller.
2. Disconnect the power to the battery charger.
3. Disconnect the generator set engine starting
battery, negative (--) lead first.
4. Use a cloth to wipe dirt and oil away from the area
around each of the four spark plug wires.
5. Remove spark plug wires by grasping the spark
plug boot and turning slightly while pulling. Do not
pull the wire. Pulling on the wire rather than the boot
may damage the wire or terminal.
6. Wipe the interior of the spark plug tubes.
7. Loosen the spark plug with a ratchet and 13/16-in.
spark plug socket with a rubber insert to prevent
spark plug damage.
8. Use compressed air to remove dirt from around
each spark plug to prevent dirt particles from falling
into the combustion chamber.
9. Remove spark plugs, one at a time, and examine.
Identify a normal spark plug in good operating
condition by observing a light tan or gray deposit on
firing tip. See Figure 4-10 to evaluate engine
condition by color/condition of a problem spark plug.
10. Check that the spark plug washer is in good
condition.
11. Clean spark plugs by wiping them with a rag.
Note: Do not sandblast, wire brush, scrape, or
otherwise service spark plugs in poor
condition. Obtain a new plug for best results.