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© 200351 8-1 XE-engine cooling system TECHNICAL DATA ΧΦ65/75/85 series 2 0 8. XE-ENGINE COOLING SYSTEM 8.1 GENERAL Thermostat Coolant pump Header tank pressure cap Pressure testing the cooling system Viscous fan clutch Thermostat opening temperatures: approx. 87 C - thermostat open at least 12 mm at approx. 99 C with intarder and/or tropical cooling: approx. 83 C - thermostat open at least 12 mm at approx. 95 C Thermostat seat Loctite 638 Maximum radial play 0.16 - 0.20 mm Pressure relief valve opening pressure 1 - 1.2 bar Underpressure valve opening pressure 0.1 - 0.02 bar Closed pressure cap position Brand name (2) legible horizontally or 60 before this position. 1 2 M201272 Closed pressure cap Brand name (2) before this position. Test pressure 0.7 - 0.9 bar Permissible slip at maximum speed control 10% Fan drive ( i ) transmission 1,207 |