CRANKSHAFT WEAR SLEEVES AND SEALS

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TM-5-2815-232-14 Engine Diesel Caterpillar Model 3508 Manual

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FRONT BALANCER GROUP (3508)

3500 ENGINE

SPECIFICATIONS

CRANKSHAFT WEAR SLEEVES

AND SEALS

(1)

Adapter.

NOTE: For complete procedure with illustrations, make

(2)

Crankshaft seals:

reference to Disassembly and Assembly section of this

Service Manual.

Crankshaft seals must be installed with the lip of

the seal toward the inside of the engine as

Install sleeve and seal assembly into

shown. Make sure the correct seal is installed

adapter (1) with correct tools.

on each end of the crankshaft.

For SAE

Standard Rotation engines use 1W6974 Seal

Clean the outer surface of the crankshaft

Group on the front and 1W6977 Seal Group on

and the inner surface of wear sleeve (4)

the rear. For SAE Opposite Rotation engines

with 6V1541 Quick Cure Primer.

use 1W6977 Seal Group on the front and

1W6974 Seal Group on the rear.

Carefully put a thin coat of 9S3265

Retaining Compound on the inner surface

(3)

Put clean engine oil on the O-ring seals at

of wear sleeve (4) and on crankshaft

assembly.

surface.

(4)

Wear sleeve.

Install adapter (1), seal (2) and wear sleeve

(4) as a unit on the end of the crankshaft

Removal:

with the correct tools.

Remove the seal adapters from each end of

Tools Needed

the engine and remove the seals from the

adapters.

6V4002

Forcing Bracket

(2)

6V4001

Forcing Ring

(1)

NOTE: Seals and wear sleeves can not be used again,

1B4330

Nut (5/16"-18 NC)

(4)

after the seals and wear sleeves are separated.

6V4003

Locator

(1)

2N5006

Bolt (1"-14 NF x

(2)

Remove wear sleeves with 5P7409

2 5 in. long)

Distorter and 6V3143 Distorter Adapter.

Guide Bolts (5/16"-

(2)

Installation:

18 NC x 4 in. long)

6V4977

Installer

(1)

Do not separate wear sleeves (4) from

9S8858

Nut

(1)

crankshaft seals (2).

Once they are

separated, they can not be used again.