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Groundsmaster 4500--D/4700--D Page 3 -- 11 Yanmar Diesel Engine
DANGER
Because diesel fuelis highlyf lammable, use cau-
tion 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 start-
ing the engine. Store fuel in a clean, safety--ap-
proved container and keep cap in place. Use die-
sel fuel for the engine only; not for any other
purpose.
Check Fuel Lines and Connections
Check fuel lines and connections as recommended in
the Traction Unit Operator’s Manual. Check lines for de-
terioration, damage, leaking or loose connections. Re-
place hoses, clamps and connections as necessary.
Drain and Clean Fuel Tank
Drain and clean the fuel tank periodically as recom-
mended in the Traction Unit Operator’s Manual. Also,
drain and clean the fuel tank if t he fuel system becomes
contaminated or if the m achine is to be stored for an ex-
tended p eriod. To clean fuel tank, flush tank out with
clean diesel fuel. Make sure tank is free of contaminates
and debris. Follow all local codes and regulations when
recycling or disposing of waste fuel.
Priming the Fuel System
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 sys-
tem, make sure that the fuel tank has fuel init. Then, turn
the ignition key to the ON position for 10 to 15 seconds
which allows the fuel pump to p rime the fuel system. DO
NOT use the engine starter motor to crank t he engine in
order to prime the fuel system.
Fuel Tank Removal (Fig. 9)
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 con-
tainer.
4. Remove fuel tank using Figure 9 as a guide.
Fuel Tank Installation (Fig. 9)
1. Install fuel tank to frame using Figure 9 as a guide.
If draincock (item 15) was removed from tank, apply
thread sealant to threads of draincock before installing
it into fuel tank.
2. Using labels placed during fuel tank removal, cor-
rectly connect fuel hoses to the suction and return fit -
tings in top of tank. Secure hoses with hose clamps.
3. Make sure that draincock in bottom of fuel tank is
closed.
4. Fill fuel tank with clean fuel.
Figure 10
1. Fuel tank cap
2. Fuel gauge
3. Fuel supply hose
4. Fuel return hose
1
2
3
4
Yanmar
Diesel Engine