Komatsu — LED Light Signals:

Lubrication & Service - Section 40 10/04 OM4043 Page 40-4 10 HOUR (DAILY) INSPECTION Prior to each operating shift, a “walk around” inspec- tion should be performed. Check the truck for general condition. Look for evidence of hydraulic leaks; check all lights and mirrors for clean and unbroken lenses; check operator's cab for clean and unbroken glass; check frame, sheet metal and body for cracks. Notify the proper maintenance authority if any dis- crepancies are found. Give particular attention to the following: Truck Serial Number ________________________ Site Unit Number ____________________________ Date:

__________ Hour Meter _________________ Name of Service Person ______________________ 10 HOUR LUBRICATION AND MAINTENANCE CHECKS 1. FAN DRIVE AND TURBOCHARGERS - Check for leaks, vibration or unusual noise. Check alternator and fan belts for proper tension, con- dition and for alignment. 2. RADIATOR - Check coolant level and fill with proper mixture as shown in Cooling System Recommendation Chart. Refer to Engine Man- ual for proper coolant additives. 3. ENGINE - Check oil level on dipstick. Refer to engine manufacturer's shop manual for oil rec- ommendations. (Lube Key “A”). Inspect exhaust piping for security.

Centinel - Check reservoir oil level Eliminator Filter - Check operating indicator NOTE: If truck is equipped with a reserve engine oil tank, the oil should be visible in the center (middle) sight gauge. If not, add oil to reserve tank until oil is visible in top sight gauge. Also, with engine running, check operation of the LED indicator light. See below for description of LED Light Signals. LED Light Signals: Steady - Pump 1 is withdrawing oil from the engine sump and bringing down the oil level. Regular Pulsing - Pump 2 is returning oil to the engine sump and raising the oil level. Irregular Pulsing - Oil is at the correct running level. 4.

FUEL FILTERS (Fuel Separators) - Drain water from bottom of each filter housing. 5. HYDRAULIC TANK - Check oil level in tank, add oil if necessary. Refer to “Hydraulic Tank Service”. Oil should be visible in top sight glass. - DO NOT OVERFILL. Lube Key “B”. COMMENTS CHECKED INITIALS