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Index

Page 1 (1)

Engine Frame and Base Frame

511S

 

 

L23/30H

Description

Engine Frame and Base Frame .............................................................................

511.01(01H)

Working Card

Functional Test of Crankcase Safety Relief Valves ..........................................

511-01.00 (01H)

Plates

Frame with Main Bearings ........................................................................................

51101-01H

Frame with Main Bearings ........................................................................................

51101-02H

Front Cover of Lubricating Oil pump ........................................................................

51102-01H

Mounting of Pumps ..................................................................................................

51102-02H

Covers on Frame ......................................................................................................

51106-01H

Covers on Frame ......................................................................................................

51106-02H

Covers on Frame ......................................................................................................

51106-03H

Covers on Frame ......................................................................................................

51106-03S

Crankcase Safety Relief Valves ...............................................................................

51107-03S

08028-0D/H5250/94.08.12

98.35-ES0U

Description

Engine Frame and Base Frame

511.01

Page 1 (1)

Edition 01H

 

 

 

 

 

 

 

L23/30H

Frame

The engine frame is made of cast iron, and is attached to the top of the base frame by means of bolts. The cross girders of the frame are provided with bores for themainbearingsinwhichthecrankshaftisunderslung, i.e. it is carried by the main bearing caps.

The main bearing caps are attached by means of studs and nuts, which are loosened and tightened with the aid of hydraulic tools. After mounting, the main bearing caps are further secured by means of bracing screws, which are screwed horizontally into the sides of the caps and tightened against the sides of the engine frame. The main bearings are equipped with replaceable shells which are fitted without scraping.

The crankshaft guide bearing is located at the flywheel end of the engine.

On the sides of the frame there are covers for acces to the camshaft, the charge air receiver and crankcase. Some of the covers are fitted with relief valves which will act, should oil vapours in the crankcase be ignited, for instance in the event of a hot bearing.

The charge air cooler housing is a integrated part of the frame.

Base Frame

Engine and alternator (gear, pump) are mounted on a common base frame which is in welded design.

The base frame is used as lubricating oil reservoir "wet sump".

94.26 - ES0U

Working Card

Functional Test of Crankcase Safety Relief Valves

511-01.00

Page 1 (2)

Edition 01H

 

 

 

 

 

 

 

L23/30H

08028-0D/H5250/94.08.12

Safety precautions:

Stopped engine

Shut-off starting air

Shut-off cooling water

Shut-off fuel oil

Shut-off cooling oil

Stopped lub. oil circul.

Description:

Functional test of crankcase safety relief valves.

Starting position:

Related procedure:

Manpower:

 

 

 

Working time

:

1/4

hour

Capacity

:

1

man

Data:

 

 

 

Data for pressure and tolerance

(Page 500.35)

Data for torque moment

(Page 500.40)

Declaration of weight

(Page 500.45)

Special tools:

Plate no

Item no

Note.

Hand tools:

Allen key, 12 mm.

Ring and open end spanner, 17 mm. Loctite 243

Replacement and wearing parts:

Plate no

Item no

Qty/

51106

034

1/cyl.

51106

058

1/cyl.

51106

071

1/cyl.

97.06 - ES0S-G

511-01.00

Functional Test of Crankcase Safety Relief Valves

Working Card

Edition 01H

Page 2 (2)

 

 

 

 

 

 

 

 

 

L23/30H

 

 

 

 

Functional testing of the crankcase safety relief

 

 

 

 

 

 

valves cannot be effected during operation of the

 

 

 

engine, but it must be checked during overhauls that

 

 

 

the valve flap is movable.

 

 

 

Take care when painting the engine, not to block up

 

 

 

the safety relief valves with paint.

 

 

 

The safety relief valves have been set to open at an

 

 

 

excess pressure in the crankcase of, see page

 

 

 

500.35.

 

 

 

 

If the safety relief valves are actuated, the engine

 

 

 

must be stopped immediately, and it must not be

 

 

 

restarted until the cause has been found and the fault

 

 

 

has been rectified, see also description 503.04,

 

 

 

ignition in crankcase.

Fig 1.

 

 

 

 

 

 

08028-0D/H5250/94.08.12

97.06 - ES0S-G

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