AR20.10-B-2460E | Remove/install coolant thermostat | 12.02.16 |
Cumbustion engine 457 with Vehicle 664.231
B20.10-0017-12
1 Coolant pump
2 Thermostatic valve
3 O-rings
4 Thermostat valve lid
5 Lid fastening screw
6 Hose
| Remove and install | ||
1 | Open engine compartment cover | Refer to body manufacturer's instructions. | |
Danger! | Risk of burningdue to high coolant temperatures | Relieve system pressure by cautiously opening expansion tank filler cap to first stage. Do not remove filler cap at engine temperatures above 90 oC. Use the required EPIs. | |
2 | Drain the cooling system | Collect the liquid, replace it if necessary. | |
| Indications on the coolant | ||
| Change the coolant | ||
3 | Remove hose (6) from cover (4) | Check condition of fastening clamps and hose (6). Replace as necessary. | |
4 | Remove screws (5) and cover (4) | | |
5 | Remove O-rings (3) | Installation: Replace O-rings (3). | |
6 | Remove thermostat valves (2) | Installation: Assure correct position of thermostat valves (2); air outlet orifice (arrow) must point upwards. | |
7 | Check thermostat valves (2) | Test thermostat valves. | |
8 | Install in reverse order | ||
9 | Control the coolant level | Replenish as necessary. | |
| Cooling system: Check and restore the level and concentration of the coolant |
Coolant pump, coolant thermostat