ar2000b1010tj

Inspect cooling system for leaks

Tipo ar · tema 20.00 · versione 0300 · 2019-11-09

Valido per: Engine 924.9, 926.9 in model 693.2/3, 694.0, 695.0/3 Engine 924.9, 926.9 in model 958.0/1 Engine 926.9 in model 958.2

Non disponibile in “it”; mostrato in Inglese.

Collocazione

Gruppo funzionale 1 Motore › 20 Raffreddamento motore › 20.00 Generalità — Serie 693 (modelli 2**, 3**) · Serie 694 (modelli 0**) · Serie 695 (modelli 0**, 3**) · Serie 958 (modelli 0**, 1**, 2**)

EinPAS 15 Motore › 15.25 Sistema di raffreddamento motore › 15.25.5 Circuito del liquido di raffreddamento completo — Serie 693 (modelli 2**, 3**) · Serie 694 (modelli 0**) · Serie 695 (modelli 0**, 3**) · Serie 958 (modelli 0**, 1**, 2**)

Valido anche per motori/cambi: 924 9**, 926 9**

AR20.00-B-1010TJ

Inspect cooling system for leaks

31.10.2019

Engine

924.9, 926.9 in model 693.2/3, 694.0, 695.0/3

Engine

924.9, 926.9 in model 958.0/1

Engine

926.9 in model 958.2

Modification notes

30.10.2019

Cooling system - Approximate level

BF20.00-B-1001-01I

Inspect cooling system for leaks

Represented in Atego model

1

Equalizing tank cap

2

Equalizing tank

3

Adaptor

4

Test device

5

Fueling nozzle

B20.00-0069-05

Check

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

Notes on coolant

.

AH20.00-B-2080-01A

1.1

Open the front cover

Model 693.2/3 and 958.0/2

Warning

Risk of injury caused by pinching and crushing when opening and closing engine hood

No one should be within the swivel range of the engine hood as it is being opened or closed. Always open engine hood all the way to the end position until this engages in the front locks.

AS88.40-Z-0001-01A

1.2

Tilt the hood

Model 694.0 and 695.0/3

2

Remove the cap (1) on the compensation tank (2)

Model 979.0 the compensation tank (2) is located behind the cabin.

3

Position the heating temperature selector to "max heat"; fully open position

Model equipped with a heating system.

4

Check the coolant level. If necessary, fill up

Check the concentration of antifreeze in the colling liquid. If necessary, adjust the concentration or replace the coolant.

.Cooling system - Approximate level

*BF20.00-B-1001-01I

5

Dry compensation tank (2) filler neck (5)

6

Install adapter (3) turning its rubber seal to adjust it to the filler neck with compensation tank (2) internal diameter (5)

Adapter

*655589006300

7

Install the testing equipment (4) in adapter (3)

Tester

*001589832100

8

Pressurize the cooling system with compressed air through the testing equipment (4) and check for leaks in the system


Check the pressure and the test period,
otherwise the cooling system may be damaged.

In the event of leak in the system, it will be visible a pressure drop in the test device manometer (4).

.Pressure drop in the cooling system

*BE20.30-B-1001-01C

9

Perform a visual check in the entire cooling system

Only in case of pressure drop and visible loss of coolant:
Examine radiator, heater radiator, coolant pump, hoses, pipes and their connecting points, clamps, head gasket, seals and sealing screws in the block. If necessary, reduce the leaks in the cooling system.
If the cooling liquid loss persists:
Check head and cylinders regarding cracking.

10

Depressurize the testing equipment (4) and remove it with adapter (3) of filler neck (5) of compensation tank (2)

11

Check the coolant level. If necessary, fill up

Only if there is a test and it has occurred a pressure drop or liquid loss in the cooling system.

Check the concentration of antifreeze in the colling liquid. If necessary, adjust the concentration or replace the coolant.

.Cooling system - Approximate level

*BF20.00-B-1001-01I

12

Close the compensation tank (2) with a cap (1)

13.1

Close the front cover

Vehicles 693.2/3 and 958.0/2.

Warning

Risk of injury caused by pinching and crushing when opening and closing engine hood

No one should be within the swivel range of the engine hood as it is being opened or closed. Always open engine hood all the way to the end position until this engages in the front locks..

AS88.40-Z-0001-01A

13.2

Close the hood

Vehicles 694.0 and 695.0/3.

Test values for the cooling system cover

Number

Designation

Engine 924.9, 926.9

BE20.30-B-1001-01C

Pressure drop in the cooling system

Test pressure of 1.0 bar within 5 to 10 min

bar

0

Engine cooling system capacity

Number

Designation

Engine 906.9, 926.9 in model 958.2

Engine 904, 906, 924, 926 in Type 958.0/1

BF20.00-B-1001-01I

Cooling system - Approximate level

Do not mix products between classes

Litros

37

27

Anti-corrosive/anti-freeze CLASSES MB 325.0, MB 325.3, MB 325.5

%

50

50

Product already diluted

Anti-corrosive/anti-freeze MB CLASSES 326.0, MB 326.3

Litros

37

27

Inspect cooling system for leaks
Inspect cooling system for leaks

655 589 00 63 00

Adapter

001 589 83 21 00

Tester

Documenti citati