PN 57.4400.0100_020115 - Genie

9.0 250 HOURS OR MONTHLYMAINTENANCE9.2 CHECK ENGINE COOLANTCONCENTRATIONGENERALThe lubrication charts in section 10 provide generallocations of the individual service points and list thetype lubricant, which should be used for eachcomponent.Before proceeding with 250 hours or MonthlyMaintenance Checks, refer back to the pre-operationchecklist and the 50 hours Maintenance.Do not drain the coolant while the engine is still hotand the system is under pressure becausedangerous hot coolant can be discharged.9.1 CHECK ENGINE ANDHYDRAULIC OILCleanliness is important to obtain an accurate sample.The sampling valves are located near the rear enginesupport. When taking a sample, use proper containers.Clean the sampling valve and have the operator to startthe engine. Remove the sampling valve cap and pressfront of valve to take a sample.Perkins POWERPART antifreeze with aconcentration of 50% will give protection againstfront to a temperature of –35°C (-31°F). It will alsogive protection against corrosion. This is especiallyimportant when there are aluminum components inthe coolant circuit.The coolant must be 50% Antifreeze and 50% water.The coolant mixture can be tested with a hydrometer.Remove the radiator cap (once the radiator is cool)place the tube of the hydrometer into the reservoir.Squeeze the bulb to pull coolant into the glass tube.Compare the position of the float to the graduatedlines on the glass tube of the ethylene glycol.Graduations of the float indicate the freezing point ofthe coolant. The freezing point is 40° below zero F.57.4400.0100 TX51-19M-1-SM 01-29-0281