Kohler KD1750 User Manual

TP-7070 7/18 77Section 3 Scheduled Maintenance
3.5.1 Fuel/Water Separator
Fuel/water separators (fuel prefilters) ensure clean fuel
is delivered to the engine by removing contaminants
and water. Providing clean fuel prevents clogged
injectors and allows the engine to run more efficiently. In
a fuel/water separator, water collects in the lower cavity
of the filter.
Periodically, the water must be checked and drained
and the filter must be changed. A sensor on the
fuel/water separator indicates when the collected water
needs to be drained. Refer to the engine operation
manual for scheduled maintenance and procedures.
Draining the water
To drain the water from the fuel/water separator, use the
following procedure:
1. Read and follow the safety precautions in
Section 3.1.
2. Before working on the generator set or connected
equipment, remove the generator set from service.
Refer to the safety precautions for preventing
accidental starts and disabling the generator set.
a. Remove the load from the generator set.
b. Shut down the generator set.
c. Place the generator set controller into
Out-of-Service mode and press the
emergency stop button.
d. Disconnect the power to the battery charger.
e. Remove the battery cables negative (--) lead
first to disable the generator set.
3. Hold a suitable container beneath the fuel/water
separator.
4. Open the vent plug and the manually operated
drain.
5. See Figure 3-1. Close the drain when fuel (free of
water) flows from the fuel/water separator.
6. Use the manual primer pump to prime the filter until
fuel flows from the vent plug.
7. Close the vent plug.
Note: If the fuel/water separator will not stay primed,
check that the vent plug, drain, filter element,
water collection bowl, and fuel lines are securely
tightened and verify that fuel flow is unobstructed.
1. Fuel outlet hose
2. Manual primer pump
3. Vent plug (optional restriction
gauge installs here)
4. Fuel inlet hose
5. Filter element
6. Water collection bowl
7. Water-in-fuel sensor
8. Manually operated drain
10501000200
7
5
3
2
8
6
1
4
Figure 3-1 Fuel/Water Separator
Replacing the filter element
At the interval specified in the service schedule, replace
the fuel/water separator element. Have a suitable
container with the required capacity ready.
1. Read and follow the safety precautions in
Section 3.1.
2. Before working on the generator set or connected
equipment, remove the generator set from service.
Refer to the safety precautions for preventing
accidental starts and disabling the generator set.
a. Remove the load from the generator set.
b. Shut down the generator set.
c. Place the generator set controller into
Out-of-Service mode and press the
emergency stop button.
d. Disconnect the power to the battery charger.
e. Remove the battery cables negative (--) lead
first to disable the generator set.
3. Make sure engine is off and cool to the touch.
4. If a fuel shut-off valve is present, close the fuel
shut-off valve at the nearest point to the fuel/water
separator inlet or at the fuel tank.
5. Disconnect the fuel-in-water sensor.
6. Open the vent plug on the mounting head. See
Figure 3-1.

Kohler KD1750 Specifications

General

Brand	Kohler
Model	KD1750
Category	Inverter
Language	English