Remove/install crankcase lower section

AR01.40-S-3100EA

Remove/install crankcase lower section

29.05.2020

Engine

654.9 in model 447

Modification notes

29.05.2020

Work procedure revised.

The whole document

29.05.2020

Work procedure revised.

The whole document

AR01.40-S-3200-02EA

Shown with engine removed

1

Lower crankcase section

2

Timing case cover

3

Seal

4

Pilot bushing

Top view, with removed crankcase lower section (1)

1

Lower crankcase section

5

Turnbuckles

 Caution

Risk of injury caused by scraping or cutting body parts on sharp vehicle parts

Always wear protective gloves when working on or near sharp and non-deburred vehicle parts.
Deburr repair panels.

AS00.00-Z-0017-01A

 Caution

Risk of injury to skin and eyes due to handling of engine oil. Risk of poisoning caused by swallowing engine oil

Wear protective gloves, protective clothing and safety glasses.
Do not fill engine oil into beverage containers.

AS18.00-Z-0001-01A

Topical note

Notes on avoiding damage through contamination and foreign objects

AH00.00-P-5000-01A



Remove

1

Remove timing case cover (2).

AR01.40-S-8000EA

2

Remove end cover with front radial shaft sealing ring.

AR01.40-S-8922EA

3

Remove oil suction pipe.

AR18.10-S-4020EA

4

Remove the lower crankcase section (1).

AR01.40-S-3200-02EA

5

Remove seal (3).

6

Remove tensioning screws (5).

If crankcase lower section (1) will be replaced.



Clean

7

Clean sealing surfaces on the crankcase.

AR01.00-P-0050-01A

Loctite 7063 (400 ml) cleaning spray

*BR00.45-Z-1046-04A

Loctite 7200

*BR00.45-Z-1038-04A

8

Clean sealing surfaces at crankcase lower section (1).

If crankcase lower section (1) will not be replaced.

AR01.00-P-0050-01A

Loctite 7063 (400 ml) cleaning spray

*BR00.45-Z-1046-04A

Loctite 7200

*BR00.45-Z-1038-04A



Install

9

Install new seal (3).

10.1

Screw tensioning screws (5) from above into crankcase lower section (1) and slightly tighten by hand.

If crankcase lower section (1) was replaced.

10.2

Slightly tighten tensioning screws (5) by hand.

If crankcase lower section (1) was not replaced.

11

Position the timing case cover (2) on the crankcase and secure it with four screws.

12

Apply sealant to the sealing surfaces of the crankcase lower section (1) with a squeeze gun.

Notes on applying sealant to bottom part of crankcase

AH01.40-P-1001-01OLC

Sealant, Loctite 5970, 50 ml

*BR00.45-Z-1013-01A

 Application gun

*112589002500

13

Position the lower crankcase section (1) in the installation position.

 The pilot bushings (4) must reach into the cutouts in the lower crankcase section (1) and the lower crankcase section (1) must be flush with the timing case cover (2).

14

Install crankcase lower section (1).

AR01.40-S-3200-02EA

Topical note

Notes on threaded connections fastened using a tightening angle-based tightening process

AH00.00-P-0020-01A

 Commercially available devices/tools
Electronic torque wrench / angle tightener

 Bolt, lower crankcase section to crankcase

*BA01.40-N-1004-01EA

 Bolt, crankcase lower section to crankshaft bearing cap

*BA01.40-N-1005-01EA

 Tensioning screw to crankcase lower section

*BA01.40-N-1006-01EA

15

Remove timing case cover (2).

16

Install oil suction pipe.

AR18.10-S-4020EA

17

Install new end cover with front radial shaft sealing ring.

AR01.40-S-8922EA

18

Install timing case cover (2).

AR01.40-S-8000EA

 Crankcase, timing case cover, end cover

Number

Designation

Engine 654.9 in model 447

BA01.40-N-1004-01EA

Bolt, lower crankcase section to crankcase

Stage 1

Nm

10

Stage 2

°

5

 Crankcase, timing case cover, end cover

Number

Designation

Engine 654.9 in model 447

BA01.40-N-1005-01EA

Bolt, crankcase lower section to crankshaft bearing cap

Stage 1

Nm

20

Stage 2

°

90

 Crankcase, timing case cover, end cover

Number

Designation

Engine 654.9 in model 447

BA01.40-N-1006-01EA

Tensioning screw to crankcase lower section

Nm

6

Repair materials

Number

Designation

Order number

BR00.45-Z-1013-01A

Sealant, Loctite 5970, 50 ml

A 003 989 98 20 10

BR00.45-Z-1038-04A

Loctite 7200

Henkel AG & Co. KGaA
http://www.loctite.de

BR00.45-Z-1046-04A

Loctite 7063 (400 ml) cleaning spray

A 001 986 71 71 09