ar2010s1272a

Removing, installing circulation pump

Type ar · topic 20.10 · version 0103 · 2006-07-26

Applies to: ENGINE 104.900 in MODEL 638.2

Where it sits

Function group 1 Engine › 20 Engine cooling system › 20.10 Coolant pump, coolant thermostat — Series 638 (models 2**)

EinPAS 15 Engine › 15.25 Engine cooling system › 15.25.30 Pump/thermostat/preheater — Series 638 (models 2**)

Also applies to engines/gearboxes: 104 900

AR20.10-S-1272A

Removing, installing circulation pump

5.5.97

ENGINE 104.900 in MODEL 638.2

Removing, installing circulation pump

S20.10-2505-06

1 Ignition coils

2 Coolant connections

3 Circulation pump

4 Connector

5 Rubber bracket

Removing, installing

Danger!

Risk of injury to skin and eyes from scalding from hot coolant which splashes out. Risk of poisoning from swallowing coolant.

Do not open the cooling system unless the coolant temperature is below 90 °C. Open cap slowly and allow the pressure to release. Do not pour coolant into containers for drinks.

Wear protective gloves, protective clothes, and eye protection.

AS20.00-Z-0001-01A

1

Drain coolant

AR20.00-S-1142A

2

Remove ignition coil (1)

AR15.12-S-2003B

3

Detach coolant hoses from coolant connections (2) of coolant circulation pump (3)

Check condition of the clips and coolant hoses. Replace if necessary.

Wrench hexagon

*WH58.30-Z-1002-06A

Wrench hexagon

*WH58.30-Z-1001-06A

4

Disconnect connector of coolant circulation pump (3)

5

Remove coolant circulation pump (3) from rubber mounts (5)

6

Install in the reverse order

Checking

7

Inspect for leaks

Commercially available tools

Number

Designation

WH58.30-Z-1001-06A

6 mm socket hexagon on flexible shaft for hose clamps with worm drive

WH58.30-Z-1002-06A

7 mm socket hexagon on flexible shaft for hose clamps with worm drive

Referenced documents