12
Pre Operation Inspections
Environment Conditions
The operation of a four-stroke (unleaded) engine is affected by:
1. Temperature
a. Working in low temperatures could lead to difficult cold starting.
b. Working in very high temperatures could lead to difficult hot starting due to evaporation of the fuel.
c. In any case, the correct oil must be used according to the operating temperatures.
2. Altitude
a. The higher the altitude (above sea level), the lower the pressure and flow rate will be.
b. When there is a considerable increase in altitude, the load on the machine should be reduced and heavy
work load should be avoided.
Fuel inspection
WARNING!
Be sure to stop the engine before re-fueling. A good quality fuel is the major issue for engine
reliability of operation.
WARNING!
Do not over fill the fuel tank.
WARNING!
Do not smoke while re-fueling.
1. Use unleaded petrol with a minimum of Octane 91.
2. Use clean, fresh fuel; purchase fuel in quantities that can be used every 30 days, to prevent gum or foaming
inside the container and/or fuel tank.
3. Do not use fuel which contains methanol.
4. Do not add oil or any kind of fuel additive.
Engine oil inspection
The high pressure pump is shipped without oil. Before starting ensure an oil inspection is conducted.
Always use high quality oils, select their viscosity grade according to the operating temperatures.
Note:
It is recommended that SAE-10W-30 (multi viscosity) oils are used at temperatures from 5 to 35ºC and
synthetic oils 5W-30 (multi viscosity) is used for temperatures -5 to 5ºC.
To change or top up the oil in the engine refer to the maintenance section of this instruction manual.
OPERATION
