Toro Groundsmaster 5900 Series Service Manual page 86

Drain and Clean Fuel Tank
Check Fuel Lines and Connections
Prime the Fuel System
Fuel Tank Removal
Yanmar Diesel Engine: Service and Repairs
Drain and clean the fuel tank periodically as recommended in the Operator's
Manual. Also, drain and clean the fuel tank if the fuel system becomes
contaminated or if the machine is to be stored for an extended period.
To clean fuel tank, flush tank out with clean diesel fuel. Make sure tank is free
of contaminates and debris.
Check fuel lines and connections periodically as recommended in the Operator's
Manual. Check lines for deterioration, damage, leaks or loose connections.
Replace hoses, clamps and connections as necessary.
The fuel system needs to be primed before starting the engine for the first time,
after running out of fuel or after fuel system maintenance (e.g. draining the
filter/water separator, replacing a fuel hose). To prime the fuel system, make sure
that the fuel tank has fuel in it. Then, turn the ignition key to the ON position for
10 to 15 seconds which allows the fuel pump to prime the fuel system. DO NOT
use the engine starter motor to crank the engine in order to prime the fuel system.
1. Park machine on a level surface, lower cutting decks, stop engine and
remove key from the key switch.
2. Remove the front left wheel from the machine (see
3. Use a fuel transfer pump to remove fuel from the fuel tank and into a suitable
container.
4. Using Figure 19 as a guide, remove three (3) socket head screws that secure
fitting cover (item 2) to fuel tank. Remove fitting cover.
5. Disconnect the fuel sender from the machine wire harness.
g287552
1. Fuel sender
2. Fuel return hose
3. Fuel supply hose
6. Label fuel hoses to assure proper assembly. Disconnect fuel hoses from the
fuel supply standpipe, the fuel return standpipe and the tank vent elbow
fitting in top of tank
7. Route fuel lines from under clamps (item 22) that secure supply and return
fuel lines to tank If necessary, remove plugs and clamps from top of tank.
8. Remove two (2) flange head screws and lock nuts that secure tank hold
down (item 24) to frame. Remove tank hold down.
2 3 5
Figure 20
4. Vent hose
5. Clamp (2)
(Figure 20).
Page 4–18
Wheels (page 7–3)).
1 4
Groundsmaster ® 5900 & 5910
16227SL Rev B