Aprilia Pegaso 650 ie Service Manual

Page 145

COOLING SYSTEM

Pegaso 650 I.E. 2%-/6).' 4(% #//,!.4 4(%2-!, 37)4#( Carefully read 0.5.1 (PRECAUTIONS AND GENERAL INFORMATIONS) and 1.2.5 (COOLANT). ◆ Turn the ignition switch to position “1�. ◆ Remove the front fairing, see 7.1.24 (REMOVING THE

FRONT FAIRING). â—† Disconnect the electric connectors (1) (2) from the ther-

mal switch (3). â—† Partially drain the coolant (approximately half the con-

tents of the coolant tank), see 2.14 (CHANGING THE COOLANT).

aCAUTION The level of the remaining fluid must be below the hole where the thermal switch is connected.

aCAUTION When reassembling, make sure the electric connectors (1) (2) are plugged in properly. â—† Prepare a new thermal switch and apply LOCTITEÂŽ

572 on its thread. â—† Unscrew and remove the thermal switch (3) and re-

trieve the gasket. â—† Insert the gasket on the new thermal switch. â—† Screw the thermal switch (3) on by hand before tighten-

ing it. Thermal switch driving torque: 30 Nm (3.0 kgm).

NOTE See

6.9.3 (CHECKING THE THERMAL SWITCH OPERATION) for further details on the thermal switch. â—† Top up, see 2.13 (CHECKING AND TOPPING UP COOLANT).

2%-/6).' 4(% #//,!.4 4(%2-)34/2 Carefully read 0.5.1 (PRECAUTIONS AND GENERAL INFORMATIONS) and 1.2.5 (COOLANT). â—† Remove the fuel tank, see 7.1.1 (REMOVAL OF THE

FUEL TANK).

aWARNING Let the engine cool down until it reaches room temperature. â—† Disconnect the electric connector (4).

aCAUTION Upon reassembly, make sure that the electric connector (4) is correctly coupled. â—† Prepare a new thermistor and apply LOCTITEÂŽ 574 on

its thread. â—† Unscrew and remove the thermistor (5). â—† Screw the thermistor (5) on by hand before tightening it.

Thermistor driving torque: 30 Nm (3.0 kgm).

aCAUTION Do not remove the radiator cap and/or the expansion tank cap, in order to prevent the coolant from flowing out.

Release 00/2002-02

5 - 7 - 00


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