ar2020s7450ef

Remove/install coolant pipe

Type ar · topic 20.20 · version 0101 · 2019-08-26

Applies to: Model 447 with engine 622.9

Where it sits

Function group 1 Engine › 20 Engine cooling system › 20.20 Radiator, coolant hoses — Series 447 · Series 622 (models 9**)

EinPAS 15 Engine › 15.25 Engine cooling system › 15.25.13 Line/hose/valve — Series 447 · Series 622 (models 9**)

AR20.20-S-7450EF

Remove/install coolant pipe

26.08.2019

Model

447 with engine 622.9

Remove/install coolant pipe

S20.20-4540-08

1

Connection fitting

3

Screw/bolt

5

Crankcase

2

Coolant hose

4

Coolant pipe

Warning

Risk of injury to skin and eyes suffering scalding from contact with hot coolantspray. Risk of poisoning from swallowing coolant.

Do not open cooling system unless coolant temperature is below 90 °C. Open cap slowly and release the pressure. Do not pour coolant into beverage containers.
Wear protective gloves, protective clothing and safety glasses.

AS20.00-Z-0001-01A

Topical note

Notes on coolant

AH20.00-N-2080-01A

Remove/install

1

Remove radiator

AR20.20-S-3865EF

2

Remove connection fitting (1)

AR20.10-S-2715EF

The coolant thermostat housing is not removed.

3

Remove coolant hose (2)

4

Remove screw/bolt (3)

M6

*BA00.10-N-1002-01A

5

Remove coolant pipe (4)

To do this press coolant pipe (4) with a suitable tool out of the crankcase (5).

Installation: Replace sealing ring.

6

Install in the reverse order

Check

7

Check cooling circuit for leaktightness

AR20.00-S-1010E

Headless screws/bolts: screws/bolts and nuts, coarse-pitch thread

Number

Designation

8.8

10.9

BA00.10-N-1002-01A

M6

Galvanized

Nm

9

13

Phosphated

Nm

9

12

Headless screws/bolts: screws/bolts and nuts, coarse-pitch thread

Number

Designation

12.9

BA00.10-N-1002-01A

M6

Galvanized

Nm

16

Phosphated

Nm

14

Referenced documents