Toro Groundsmaster 4500-D Series Service Manual page 85

Check Fuel Lines and Connections
Drain and Clean Fuel Tank
Priming the Fuel System
Fuel Tank Removal
Groundsmaster ® 4500-D/4700-D
19245SL Rev A
Because diesel fuel is flammable, use caution when storing or
handling it. Do not smoke while filling the fuel tank. Do not fill fuel
tank while engine is running, hot or when machine is in an enclosed
area. Always fill fuel tank outside and wipe up any spilled diesel fuel
before starting the engine. Store fuel in a clean, safety−approved
container and keep cap in place. Use diesel fuel for the engine only;
not for any other purpose.
Check fuel lines and connections periodically as recommended in the Operator's
Manual. Check lines for deterioration, damage, leaking or loose connections.
Replace hoses, clamps and connections as necessary.
Empty and clean the fuel tank periodically as recommended in the Operator's
Manual, if the fuel system becomes contaminated or if the machine is to be
stored for an extended period.
Follow all local codes and regulations when recycling or disposing
waste fuel.
To clean fuel tank, flush tank out with clean diesel fuel. Make sure tank is free
of contaminates and debris.
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).
Do not turn the key switch to the START position to prime the fuel
system.
To prime the fuel system:
1. Enure that the fuel tank has fuel in it.
2. Allow the electric fuel pump to prime the fuel system by turning the key
switch to the RUN position for 10 to 15 seconds. Cycle the key switch and
repeat if necessary.
(Figure 14)
1. Park machine on a level surface, lower cutting decks, stop engine, engage
parking brake and remove key from the ignition switch.
2. For assembly purposes, label fuel hoses at suction and return fittings in top
of tank. Disconnect fuel hoses from fittings.
3. Use draincock to empty fuel tank into a suitable container.
DANGER
IMPORTANT
IMPORTANT
Page 4–13 Yanmar Diesel Engine: Service and Repairs