. OPERATION EXPLANATION OF COMPONENTS Conditions for switching fan rotation Conditions 3 - 52 When using manual reverse rotation fu Switching from normal rotation to reve The f an will switch from normal rot ation to reverse rotation only if all the follo wing conditio ns are f ulfilled. If the direction is switched, the co flashing and will stay lighted up. If all t he conditions are not fulfilled , the fan direction will not change. If the cooling fan reverse rotation pilot lamp on the machine monito r will co ntinue to flash Portion (b) of the cooling fan au tomatic reverse rotation switch is pressed The engine speed is between L The engine water temperature i s less than 90°C (194°F).
(The indicator on the engine w ater te mperatu re gauge is below horizontal) The hydraulic oil temperature is less than 90°C (194°F). (The indicator o n the hydrauli c oil te mperatu re gauge is erature is below 100°C (212°F). (The indicator on the torque converter oil rizontal) ed after the engine was started. temperature gauge is below ho At least 30 seconds have pass Switching from reverse rotation to nor mal rotation tation to normal rotation if any of the following conditions are fulfilled.
The f an will switch from reverse ro tation to normal rotation if any of the follow ing condition s are fu If the direction is switched, the cool ing fan reverse rotation pilot lamp on the m achine monito r will ch ange a s follows: Lighted up -> flashing -> OFF. d, the fan direction will not change. If none of the conditions are fulfille If the direction is not switched, the cooling fan reverse rotation pilot l amp on the machine m onitor will change from being lighted up to flashing and wi ll continue to flash. Conditions More than 10 minutes have pas sed after the fan started to rotate in revers e and the engine sp eed has dropped to less than 1200 rpm.
When portion (b) of the cooling fan automatic reverse rotation switch is p ressed again when t he fan i s rotating in reverse, and the engine spe ed has dropped to less than 1200 rpm.