Changing Thermostat Unit - Husqvarna P524 Workshop Manual

5.5.2 Changing thermostat unit

Tools
Torx
Drill bit
Snipe nose pliers
The electrical thermostat is on the oil cooler. The oil
cooler fan starts at oil temperatures of around 70°C.
1. Dismantle the side cover.
2. Follow the cable from the sensor to the circuit
board and loosen the cable connections on the
circuit board.
3. Remove the electrical connection between the
sensor and the oil cooler.
4. Remove the right wing cover.
Dimension
T30
4 mm
5. Remove the thermostat from the hydraulic
hose.
6. Remove the sensor by drilling out the pop rivets
in the frame.
7. Check that the blower starts when the
thermostat heats up to around 70°C. If it does
not start, the thermostat must be replaced.
Refer to "5.5.2 Changing thermostat unit" on
page 51.
Checking the sensor on the thermostat
unit
8. Remove the right wing cover.
9. Remove the thermostat from the hydraulic
hose.
10. Turn the ignition switch to position "1".
11. Heat the thermostat with a heat gun.
12. If the blower does not start when the thermostat
is heated to 70°C, the thermostat must be
replaced.
Cooling system
English – 51