REV CSection 3 • Scheduled Maintenance ProceduresPart No. 82259 GS-3384 3 - 41September 20055 After all the coolant has drained, close the drainvalve.6 Replace all coolant hoses and clamps.7 Fill the radiator with the proper coolant mixture(coolant and water) for your climate until it isfull. Install the radiator cap.8 Start the engine from the ground controls andlet it run until the engine is up to operatingtemperature. Continue to run the engine untilthe coolant has circulated through the coolingsystem.9 Stop the engine.10 Allow the engine to cool until the temperature ofthe coolant is below 140°F / 60°C.Burn hazard. Beware of hotcoolant. Contact with hot coolantmay cause severe burns.11 Slowly remove the radiator cap from theradiator.Burn hazard. Fluids in the radiatorare under pressure and extremelyhot. Use caution when removingcap and adding fluids.Bodily injury hazard. Allow anypressure to dissipate graduallybefore removing the radiator cap.12 Check the fluid level in the radiator and add fluidas needed. Install the radiator cap.Result: The fluid level should be visible in thetop of the radiator.13 Clean up any coolant that may have spilledduring this procedure.C-8Replace the LPG Filter -GM ModelsEngine specifications require thatthis procedure be performed every800 hours or annually, whichevercomes first.Maintaining the LPG filter in good condition isessential to good engine performance and servicelife. Failure to perform this procedure can lead topoor engine performance and component damage.Perform this procedure with theengine off.1 Turn the manual LPG shutoff valve, located atthe LPG tank, to the CLOSED position.2 Turn the key switch to ground controls and pullout the red Emergency Stop button to the ONposition at both the ground and platformcontrols.3 Push the LPG operation button to select LPGfuel source.CHECKLIST C PROCEDURES