Download Cummin QSB Vol1 PDF

TitleCummin QSB Vol1
File Size40.2 MB
Total Pages916
Document Text Contents
Page 1

Service Manual
ISBe, ISB, and QSB (Common Rail Fuel
System)
Volume 1

Cummins Inc.
Box 3005
Columbus, Indiana, U.S.A., 47202

Registered Office
Cummins Ltd.
49 - 51 Gresham Road,
Staines,
Middlesex TW18 2BD,
England
Registration 573951 England

Copyright© 2014
Cummins Inc.

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Bulletin 4021271
Printed in U.S.A. 29-OCTOBER-2014

344740_Cummins_Vol1.indd 1 11/6/14 6:37 AM

Page 2

To buy Cummins Parts and Service Manuals, Training Guides, or Tools go to our website at https://store.cummins.com

Service Manual
ISBe, ISB, and QSB (Common Rail Fuel
System)
Volume 1

Copyright© 2014 Bulletin 4021271
Cummins Inc. Printed 29-OCTOBER-2014
All rights reserved

Page 458

ISB, ISBe and QSB (Common Rail [...] Piston and Connecting Rod Assembly
Section DS - Engine Disassembly - Group 00 Page DS-59

To buy Cummins Parts and Service Manuals, Training Guides, or Tools go to our website at https://store.cummins.com

CAUTION
Do not damage the fractured split surface on the
connecting rod or connecting rod cap while the
connecting rod cap is removed. If the fractured split
surface is damaged, the connecting rod and
connecting rod cap must be replaced to help reduce
the possibility of engine damage. Incorrect assembly
can damage the rod.

CAUTION
When setting the rod cap down, do not set the cap
down on the fractured split surface. Damage to the
fractured split surface can result.
Remove the connecting rod capscrews.
Remove the rod cap.
Remove the lower rod bearing.
Mark the cylinder number and the letter “L” (lower) on the
flat surface of the bearing tang.

Push the connecting rod and piston assembly out of the
cylinder bore. Care must be taken not to damage the
connecting rod or bearing.
Remove the upper rod bearing.

Mark the cylinder number and the letter “U” (upper) on the
flat surface of the bearing tang.

Page 459

Crankshaft ISB, ISBe and QSB (Common Rail [...]
Page DS-60 Section DS - Engine Disassembly - Group 00

To buy Cummins Parts and Service Manuals, Training Guides, or Tools go to our website at https://store.cummins.com

The piston and connecting rod assemblies must be
installed in the same cylinder number they were removed
from to provide for proper fit of worn mating surfaces if
parts are reused.
Use a tag to mark the cylinder number that each piston
and rod assembly was removed from.
Place the rod and piston assemblies in a container to
protect them from damage.

Crankshaft (001-016)
Remove
Before removing the main bearing caps, make certain that
the caps are clearly marked for their location on the
lubricating oil cooler side of the main bearing cap and
cylinder block.
The number 1 cap is at the front of the engine.

Loosen the main bearing capscrews completely, but do
not remove.

CAUTION
Do not pry on the main bearing caps to free them
from the cylinder block. Damage to the main bearing
caps and cylinder block can result.
Use two of the main bearing cap bolts to “wiggle” the main
bearing cap loose, being careful not to damage the bolt
threads.
Remove the main bearing cap.

Mark the lower main bearings for position and number as
they are removed.
Use an awl to mark the bearing position in the tang area.
NOTE: Mark the bearing's position for future identification
or possible failure analysis.

Page 916

Service Manual
ISBe, ISB, and QSB (Common Rail Fuel
System)
Volume 1

Cummins Inc.
Box 3005
Columbus, Indiana, U.S.A., 47202

Registered Office
Cummins Ltd.
49 - 51 Gresham Road,
Staines,
Middlesex TW18 2BD,
England
Registration 573951 England

Copyright© 2014
Cummins Inc.

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, a

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V
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1

Bulletin 4021271
Printed in U.S.A. 29-OCTOBER-2014

344740_Cummins_Vol1.indd 1 11/6/14 6:37 AM

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