Fuel System Maintenance; Servicing The Fuel System; Servicing The Water Separator - Toro Groundsmaster 5900 Operator's Manual

Fuel System
Maintenance

Servicing the Fuel System

Draining the Fuel Tank
Service Interval: Every 800 hours—Drain and clean
the fuel tank.
Drain and clean the tank also if the fuel system
becomes contaminated or if you are storing the
machine for an extended period of time. Use clean
fuel to flush out the tank.
Inspecting the Fuel Lines and
Connections
Service Interval: Every 500 hours—Inspect the fuel
lines and connections.
Check the fuel lines and connections every 500 hours
or yearly, whichever comes first. Inspect them for
deterioration, damage, or loose connections.
Servicing the Water
Separator
Service Interval: Before each use or daily—Drain the
water separator.
Every 400 hours—Replace the fuel/water
separator element.
Draining the Water Separator
1. Place a drain pan under the fuel filter.
2. Loosen the drain valve on the bottom of the filter
(Figure 105).
Figure 105
1. Vent plug
2. Water separator/filter
g031733
3. Drain valve
3. Tighten the valve after draining.
Replacing the Water-Separator
Element
1. Place a clean container under the water
separator.
2. Drain some fuel by loosening the vent plug and
opening the drain valve
3. Clean the area where the filter element mounts
to the head.
4. Remove the filter element.
5. Apply a coating of clean fuel or engine oil to the
new O-ring and element seal.
6. Install the new filter canister by hand until the
gasket contacts the filter head, then tighten it
an additional 1/2 turn.
Note:
Do not use tools.
7. Close the drain plug.
8. With the vent plug still loosened, turn the ignition
key to the Run position (do not start the engine)
so that the electric fuel pump can fill the new
filter.
9. When fuel flows from the vent plug, close the
vent plug, start the engine, and check for leaks.
Note:
Correct as necessary with the engine off.
75
(Figure 105).