Komatsu PC138US-11 Operation & Maintenance Manual page 206

MACHINE OPERATIONS AND CONTROLS
2.
When the fuel level caution lamp lights up in red, check the
fuel level with fuel level gauge (1) on the machine monitor.
When the fuel gauge pointer (2) reads the red range, the
fuel amount is 52 ℓ or less.
The fuel level is low. Add fuel.
3.
After checking, turn the starting switch back to OFF posi-
tion.
4.
Open fuel filler cap (F) of the fuel tank.
5.
Add fuel through the fuel filler port until float gauge (G)
rises to the maximum position.
Fuel tank capacity: 200 ℓ
Position (a) of tip of float gauge (G) when fuel tank is full:
Approximately 130 mm above top of fuel tank
6.
After adding fuel, push float gauge (G) straight down with
fuel filler cap (F). Be careful not to get float gauge (G)
caught in the tab (3) of fuel filler cap, and tighten fuel filler
cap (F) securely.
REMARK
If breather hole (4) in the cap is clogged, the pressure in-
side the tank will go down and this may cause the fuel to
stop flowing. To prevent this, clean the breather hole from
time to time.
METHOD FOR ADDING FUEL WITH REFUELLING PUMP
(If equipped)
When adding fuel, never spill the fuel or let it overflow. The fuel may cause fire.
If any fuel has spilled, wipe it up completely. If fuel has spilled over soil or sand, remove that soil or
sand.
Fuel is highly flammable and dangerous. Never bring any open flame near fuel.
3-136
WARNING
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WENAM00111
OPERATION