TM5-3810-305-10f. Restart engine and check to insure allcontrols are properly positioned for starting.Run engine for 3 to 5 minutes to chargebattery.g. Turn ignition switch OFF and servicevehicle.Emergency Window RemovalIf it is necessary to rescue an operator that istrapped in the cab, remove the front glass. Usingany available pointed object such as a knife,screwdriver or stick, pry out the seal lip of theweatherstripping. Pry in under the glass to raiseit so that it can be removed. This same methodcan be used on any of the side or rear windowsfor emergency purposes.An able and conscious operator can also exit thecab by placing his feet against the glass and withmoderate force, push the glass out of front or rearwindows.Extreme HeatLike extreme cold, extreme heat requires thatprecautions be taken with respect to the coolingsystem, battery and lubrication. Protect thevehicle by performing the following recom-mended procedures:1. Lubricate with correct lubricants. High tem-peratures necessitate the use of lubricantswhich are both higher in viscosity and resistdeterioration at higher operating tempera-tures. Refer to the Lubrication section,Appendix B and use the lubricants recom-mended for the expected temperatures.2.Crankcase oil is particularly important be-cause it helps dissipate heat. Check the oillevel frequently and add oil as required tomaintain the correct level. Low oil willhinder heat dissipation.The cooling system is pressur-ized. Use extreme caution andproper protection when removingradiator cap after operating tem-perature is reached. Whenremoving cap, loosen it slowly tothe left, then pause a moment.Steam and hot gases will beescaping through the radiatorcap; avoid being burned by thesegases. Continue to turn cap untilit can be removed. Failure tofollow this procedure could causeSERIOUS INJURY.Prevent overheating. To insure proper cool-ant circulation, drain and flush the coolingsystem. Clean any foreign matter from theradiator cooling fins and core air passages.Replace defective hoses and tighten hoseclamps. Eliminate any leaks detected and fillthe system with a 5070 solution of ethyleneglycol and water. A corrosion inhibitor isalso recommended.Engine overheating due to loss of coolant willmost often be corrected by SLOWLY replac-ing the lost coolant with engine idling.Water containing larger than normal concen-trations of salt or minerals should not be usedin the cooling system. Salt will cause corro-sion and mineral deposits will collect on thecoolant passage walls. Both processes inhibitproper cooling.4-69
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