Komatsu — 2.2.2 inspection after initial 50 hours operation

2. Inspection and Adjustment In early period of use, the engine oil gets dirty rapidly because of the initial wear of internal parts. Replace he engine oil earlier. t Lube oil filter should also be replaced when the engine oil is replaced. The procedure of lube oil and lube oil filter replacement is as follows. (a) Drain engine oil z Prepare a waste oil container collecting waste oil. z Remove the oil filler cap to drain easily while draining the lube oil. z Loosen the drain plug using a wrench (customer procured) to drain the lube oil. z Securely tighten the drain plug after draining the lube oil. [NOTICE] Use a socket wrench or a closed wrench when removing or tightening a drain plug.

Don’t use a spanner because it has the possibility that the spanner will slip and it will get hurt. z Turn the lube oil filter counter-clockwise using a filter wrench (customer procured) to remove it. z Clean the mounting face of the oil filter. z Moisten the new oil filter gasket with the engine oil and install the new engine oil filter manually turning it clockwise until it comes into contact with the mounting surface, and tighten it further to 3/4 of a turn with the filter wrench. (b) Replacing oil filter m) Tightening torque: 20 24N m (2.0 2.4kgf (c) Filling oil and inspection z Fill with new engine oil until it reaches the specified level. IMPORTANT:

Do not overfill the oil pan with engine oil. Be sure to keep the specified level between upper and lower limit on the dipstick. z Warm up the engine by running for 5 minutes while checking any oil leakage z Stop the engine after warming up and leave it stopping for about 10 minute to recheck the engine oil level with dipstick and replenish the engine oil. If any oil is spilled, wipe it away with a clean cloth. 26 Model Applicable oil filter Part No. 3TNV82A 4TNV98(T) 129150-35151 4TNV106(T) 119005-35100