2. INSPECTION AND ADJUSTMENT (2) Fuel filter element replacement Replace the fuel filter at specified intervals, before it is clogged with dust to adversely affect the fuel flow. Also, replace the fuel filter after the engine has fully been cooled. 1) Close the fuel cock of the water separator. 2) Remove the fuel filter using a filter wrench (customer procured). When removing the fuel filter, hold the bottom of the fuel filter with a piece of rag to prevent the fuel oil from dropping. If you spill fuel, wipe such spillage carefully. 3) Clean the filter mounting surface and slightly apply fuel oil to the gasket of the new fuel filter.
4) Install the new fuel filter manually turning until it comes into contact with the mounting surface, and tighten it further to 1/2 of a turn using a filter wrench. Tightening torque: 20 – 24 Nm {2.0 – 2.4 kgm} 5) Bleed the fuel system. Refer to 2.2.3.(3) IMPORTANT: Be sure to use genuine Komatsu part (super fine mesh filter). Otherwise, it results in engine dam- age, uneven engine performance and shorten engine life. (3) Air cleaner cleaning and element replacement Replace the air cleaner element periodically even if it is not damaged or dirty. When replacing the element, clean inside of the dust pan at the time.
If having the air cleaner with double elements, do not remove the inner element. If the engine output is still not recover (or the dust indicator still actuates if having the air cleaner with a dust indicator) even though the outer element has replaced with new one, replace the inner element with new one. 2-16 82E-5 – 98E-5 SERIES Model Applicable fuel filter Part No. 3D82AE – 4D88E YM119802-55800