Komatsu PW130ES-6K Operation & Maintenance Manual page 202

MAINTENANCE.
Allow the engine to cool before checking the oil level to
avoid burns by touching hot engine parts.
CHECK FUEL LEVEL, ADD FUEL
When adding fuel, never let the fuel overflow. This may cause
a fire. If spilling fuel, thoroughly clean up any spillage.
1. Use sight gauge (G) on the front face of the fuel tank to check
that the tank is full.
2. If the fuel level is not within the sight gauge, add fuel through
filler port (F) while watching sight gauge (G).
Fuel capacity: 240 l
For details of the fuel to use, see "USE FUEL, COOLANT
AND LUBRICANTS ACCORDING TO AMBIENT TEMPER-
ATURE" on page 173.
3. After adding fuel, tighten the cap securely.
REMARK
If breather hole (1) on the cap is clogged, the pressure in the
tank will drop and fuel will not flow.
Clean the hole from time to time.
WARNING
WARNING
SERVICE PROCEDURE
201