Gaseous Fuel System - Kohler 15RES Manual

2. Replace the oil filter.
a. Remove the
counterclockwise with an oil filter wrench.
b. Clean the contact surface of the oil filter
adapter.
c. Apply a light coat of clean oil to the rubber seal
of the new oil filter.
d. Install the new oil filter following the instructions
provided with the filter.
Note: Dispose of all waste materials (engine
oil, fuel, filter, etc.) in an environmentally
safe manner.
3. Fill with oil. See Figure 3-1 for oil selection and
Figure 3-3 for oil capacity.
Model
15/30RES
15/30RES with oil makeup
kit
Figure 3-3 Oil Capacity
4. Check for leaks.
a. Check that the generator set master switch is in
the OFF position.
b. Reconnect the generator set engine starting
battery, negative (--) lead last.
c. Reconnect the power to the battery charger, if
equipped.
d. Start the generator set and check for leaks
around the oil filter.
e. Stop the generator set and tighten the oil filter to
stop any leaks.
f. Reinstall the housing side panel.
5. Stop the generator set. Check the oil level. Add oil,
as necessary, to bring the level up to the Full mark.
Note: Too high an oil level causes high oil
consumption and engine carbonizing. Too
low a level damages the engine.
22 Section 3 Scheduled Maintenance
oil filter by rotating
Oil Capacity, L (qt.)
3.5 (3.7)
5.4 (5.7)

3.5 Gaseous Fuel System

it
The gaseous fuel system uses two solenoid valves to
control the fuel flow to the fuel regulator.
generator-mounted regulator reduces fuel pressure as
fuel passes to the mixer. See Figure 3-4. The mixer
controls the ratio of fuel to air under varying loads and
speed conditions. Because the mixer receives fuel in a
gaseous state, it does not need to vaporize the fuel.
1
1. Gas fuel solenoid valve (2 required for UL2200)
2. Gas fuel regulator
Figure 3-4 Fuel Regulator and Valve
Fuel regulators are compatible with both natural gas and
LP gas. See Figure 3-5.
instructions found on the hang tag attached to the
generator set. If the set operates on LP gas, follow the
instructions in the Installation Manual to remove the
internal spring from the gas regulator and adjust the fuel
mixture. See the List of Related Literature in the
Introduction to this manual for the document number.
Figure 3-5 Gas Fuel Regulator
The
2
FE-255000-G
Read and follow the
SB-527
TP-6344 4/09