Remove/install retarder

AR43.30-W-0002WT

Remove/install retarder

04.12.2019

Model

964

with code B3H (Water-type secondary retarder)

Retarder removal upwards

1

Retarder

2

Sealing ring

3

Eyelet

4

Gear

23

Broom and blade holder (equipment specific)

24

Bracket

1

Retarder

8

Coolant hose (return)

12

Screw

5

Drain plugs (with magnet)

9

Coolant connection (return line)

13

Coolant pipe (feed)

6

Drain screw

10

Propeller shaft

22

Clamps

7

Coolant pipe (return)

11

Transmission

A11

Retarder control (RCM) control unit

7

Coolant pipe (return)

11

Transmission

12

Screw

13

Coolant pipe (feed)

14

Clip

15

Bracket

1

Retarder

17

Cable tie

20

Compressed-air line

11

Transmission

18

Coolant hose (feed line)

21

Electrical connector

12

Screw

19

Coolant connection (feed line)

A11

Retarder control (RCM) control unit

16

Locking pressure line (return line)

 Warning

Risk of injury. Skin or eye injuries may result when handling hot or glowing objects.

Wear protective gloves, protective clothing and safety glasses, if necessary.

AS00.00-Z-0002-01A

 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

 Danger

Risk of death to implant wearers from working on retarder

As a safe distance from the retarder, a minimum distance of 100 cm is to be maintained between the retarder and the body parts of the affected person for people with implants.

AS43.30-Z-0002-01A

 Danger

Risk of death. There is a risk of death to persons located within the tilting range or underneath the raised dump body during operation. Risk of injury There is a risk of body parts being crushed or pinched when the dump body is lowered.

All persons must remain outside the tilting range of the dump body during its operation. Always secure the raised dump body with the dump body support before starting any work underneath it.

AS55.20-Z-0001-01A

Topical note

Information on preventing damage to electronic components due to electrostatic discharge

AH54.00-P-0001-01A

Topical note

Notes on coolant

AH20.00-N-2080-01A

Topical note

Notes on influence of retarder on coolant/coolant sludging

AH43.30-N-0003-01WR

Topical note

Notes on self-locking nuts and bolts

AH00.00-N-0001-01A

Topical note

Notes on avoiding damage through contamination and foreign objects

AH00.00-N-5000-01H

Notes on compressed air connection systems

AH00.18-N-0001-01A

 

Remove/install

1

Use the right multifunction lever (S23) to set the retarder control to the "0" position.

2

Raise and secure dump body.

Only for vehicles with dump body.

3

Remove noise encapsulation.

4

Remove noise encapsulation holder (24).

5

Remove broom and blade holder (23) from frame.

Only if fitted.

6

Drain coolant at drain screws (5, 6).



Connection fitting for coolant return line on retarder modified

BT43.30-W-0009-01WR

Engine 936.9

AR20.00-W-1142M

Engine 470.9, 471.9, 473.9

AR20.00-W-1142H


Remove chips stuck to drain screws (5).
The cooling system can get damaged otherwise.

7

Partially drain transmission oil from transmission (11).



Transmission 715.310/352/360/371/381/508/518/523/528/571

AP26.00-W-2601H

8

Check position of propeller shaft flange (10) relative to retarder (1).

If the flattened side of the propeller shaft flange does not face toward the retarder (1),



turn the propeller shaft (10).

9

Remove cable ties (17) of locking pressure line (16) from transmission (11).

10

Detach locking pressure line (16) from retarder (1) and check sealing ring in quick-release coupling of locking pressure line (16) for damage.

 Collect escaping coolant using suitable vessel.

 Installation: Coat sealing ring with lubricant.
The safety clip must latch into place on the locking pressure line (16).

Lubricant, rubber assembly 1 l

*BR00.45-Z-1010-06A

If the sealing ring in the quick-release fastener of the locking pressure line (16) is damaged,



replace locking pressure line (16).

AR43.30-W-0062WS

11

Remove cable ties of electric line from retarder (1).

12

Release and disconnect electrical connector (21) from retarder control unit (RCM) (A11).

13

Disconnect connector coupling of compressed-air line (20) from retarder control unit (RCM) (A11) and place compressed-air line (20) to one side.

AR42.10-W-0900H

 Vent compressed air at plug connection of compressed air line (20).

 Installation: Only the compressed air connection system VOSS "232" may be used on the retarder control unit (RCM) (A11).

14

Remove retarder control unit (RCM) (A11) from retarder (1).

 Retarder control (RCM) control unit on retarder

*BA43.30-N-1004-01F

15

Remove clamps (22) of coolant pipes (7, 13) from holders.

 Bolt, clamp for retarder coolant pipe to bracket

*BA43.30-N-1016-01F

16

Remove clamps (14) of coolant pipes (7, 13) from holder (15).

 Bolt, clamp for retarder coolant pipe to bracket

*BA43.30-N-1016-01F

17

Remove holder (15) from transmission (11).

18

Screw eyelet (3) with M10 thread at top into retarder (1) and secure with a shackle.

19

Remove coolant hoses (8, 18) from coolant connection (9, 19).

Engine 470.9, 471.9, 473.9, 936.9

AR20.20-W-7470-01H

 Depending on accessibility, detach clamps for coolant hoses (8, 18) on either the retarder side or the line side.

 Pliers

*470589013700

20

Remove screws (12) from retarder (1).

 Collect and dispose of escaping coolant and transmission oil.

 Bolt, retarder to transmission

*BA43.30-N-1001-01F

21

Detach retarder (1) from transmission (11) and lift out upwards.

 Installation: When placing the retarder (1), turn the gear (4) if necessary.

22

Remove sealing ring (2).

 Installation: Moisten new sealing ring (2) with transmission oil and install free of twists.

23

Replace retarder (1).

Only if a new retarder (1) is installed.



Anticorrosion agent/antifreeze (specification 325.5)

BB00.40-P-0325-05A

AR43.30-W-0022WR

 A new retarder (1) must be filled with approx. 1   l of coolant before installation.

24

Install in the reverse order

 Retarder

Number

Designation

MODEL 963, 964 with CODE B3H (Secondary water retarder)

BA43.30-N-1001-01F

Bolt, retarder to transmission

Nm

170

 Retarder

Number

Designation

MODEL 963, 964 with CODE B3H (Secondary water retarder)

BA43.30-N-1004-01F

Retarder control (RCM) control unit on retarder

Nm

22

 Retarder

Number

Designation

MODEL 963, 964 with CODE B3H (Secondary water retarder)

BA43.30-N-1016-01F

Bolt, clamp for retarder coolant pipe to bracket

Nm

25

Repair materials

Number

Designation

Order number

BR00.45-Z-1010-06A

Lubricant, rubber assembly 1 l

A 000 989 03 67