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System Check NLLC0054 WARNING: Never remove the radiator cap when the engine is hot; serious CHECKING COOLING SYSTEM HOSES NLLC0054S01 Check hoses for improper attachment, leaks, cracks, damage, CHECKING RADIATOR NLLC0054S02 Check radiator for mud or clogging. If necessary, clean radiator as I Be careful not to bend or damage the radiator fins. I When radiator is cleaned without removal, remove all sur- 1. Apply water by hose to the back side of the radiator core ver- 2. Apply water again to all radiator core surfaces once per 3. Stop washing if any stains no longer flow out from the radia- 4. Blow air into the back side of radiator core vertically downward. I Use compressed air lower than 490 kPa (4.9 bar, 5 kg/cm 2 , 71 psi) and keep distance more than 30 cm (11.8 in). 5. Blow air again into all the radiator core surfaces once per SLC755AC CHECKING RADIATOR CAP NLLC0054S03 To check radiator cap, apply pressure to cap with a tester. Radiator cap relief pressure: Standard 78 - 98 kPa 2 , 11 - 14 psi) Limit 59 kPa (0.59 bar, 0.6 kg/cm 2 , 9 psi) SMA967B Pull the negative pressure valve to open it. I Check the radiator cap negative pressure valve for contamina- I Move the negative pressure valve to check for abnormalities to CAUTION: I Be sure to perform the inspections after cooling down the I Before connecting the radiator cap to the tester, apply ENGINE COOLING SYSTEM YD System Check LC-34 |