Install cover with radial shaft sealing ring

AR01.40-D-8925-01TSC

Install cover with radial shaft sealing ring

Engine

274 in model 907

 Crankcase, timing case cover, end cover

Number

Designation

Engine 274 in model 907

BA01.40-N-1002-01I

Bolt, end cover to crankcase

Nm

9

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-1028-04A

Assembly cleaner

A 000 986 56 01

BR00.45-Z-1038-04A

Loctite 7200

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

1

Clean and degrease crankcase (3) and oil pan (4) in area where sealant is applied as well as contact surface (7a) on crankshaft flange (7).

 The radial shaft sealing ring (6) is vulcanized into the end cover (5) and can therefore be replaced only together with the end cover (5). Do not reuse end cover (5) with radial shaft sealing ring (6) after removal.
Leaks can occur otherwise.

 The radial shaft sealing ring (6) has both a sealing lip and a protective lip. The sealing lip, protective lip and contact surface (7a) on crankshaft flange (7) may not be lubricated for installation.

2

Clean and degrease sealing surface of new end cover (5).

3

It must Apply sealant in form of a sealant bead with a height and width of 2.0 mm ( 0.5 mm) on crankcase (3) and oil pan top section (4).

 Use approved sealant only. Do not spread the sealant bead. Install the end cover (5) within 5 minutes of applying the sealant.
Leaks can occur otherwise.

4

Mount end cover (5) with radial shaft sealing ring (6) on  insertion device (02) as shown.

 Make sure that the protective lip faces in the direction of the transmission housing and the sealing lip faces in the direction of the crankcase (3).
Leaks could occur otherwise at the radial shaft sealing ring (6).

5

 Remove insertion device (01) from  insertion device (02).

6

Position end cover (5) with radial shaft sealing ring (6) and  insertion device (02) on contact surface (7a) on crankshaft flange (7).

 The contact surface (7a) must not be worked with coarse abrasive paper.
The contact surface (7a) on the crankshaft will be damaged otherwise.

7

Screw in screws (5a, 5b) in crosswise pattern.

8

Tighten screws (5a, 5b) in crosswise pattern in stages   .

 Observe tightening torque.

9

 Remove insertion device (02) from crankshaft flange (7).

10

Raise protective lip carefully and check for correct installation position of the sealing lip.

 The sealing lip must point towards the cylinder crankcase (3) all around its circumference.
A wrong installation position will lead to leaks.

11

Check for correct installation position of the protective lip.

 The protective lip must point over the whole circumference to the transmission housing.
An incorrect installation position leads to premature wear of the radial shaft sealing ring (6).