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Current Release Number Std. Revision Level

Name

Identifier

Engineering Standard NumberMAGNETISM,RESIDUAL

INSPECTION SPECIFICATION(CHARACTERISTIC)

16114

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EngineeringStandards

CUMMINS CONFIDENTIALThis document (and the information shown thereon) is CONFIDENTIAL AND PROPRIETARYand shall not be disclosed to others in hard copyor electronic form, reproduced by any means, or used for any purpose without written consent of Cummins Inc.

1. Scope

This specification applies to the limits of acceptance for residual magnetism found in ferrousengine parts and shall apply to all ferrous parts listed below or whenever this inspectionspecification is referenced within a Magnetic Particle Inspection Standard.

This specification shall not be used for new product fuel system components, use CES 16602.

2. Applicable Documents

Applicable documents listed below may be obtained from the respective organizations listed in

CES 10054, Standards Organizations Addresses.

a. 10054, Standards Organizations Addresses

b. 10056, Glossary

3. Definitions

There are no unique definitions in this standard. Terms used in this standard that have a generaldefinition for usage in Cummins Engineering Standards are defined in CES 10056, Glossary.

4. Specifications

4.1. Equipment

4.1.1. Master

a. Bell Gaussmeter, Model 610 using internal standards.

b. Bell Gaussmeter, Model 110A and reference (calibration)

c. Magnets (supplied with equipment)

d. Denshujiki Co. Ltd. Gaussmeter, Model GM-340

e. Other Equipment that has the equivalent or better capability to make the measurements,

(See Section 4.2. Measurements on page 2).

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4.1.2. Gage

4.1.2.1. Electromatic (Product Co.) Model (EMU Series residumeter and series UCresidumeter comparator for calibration) or gage that has equivalent or better capability to make themeasurements below:

4.1.2.1.1. The gage or master mentioned above is to be used for all inspections with frequentreference made to the appropriate master, noted above, for assurance of accurate measurements.

4.1.2.1.2. The gage or master reference (shall) be done through the use of reference magnetsor internal calibration (in the case of a gaussmeter) and via the comparator for residumeters.

4.2. Measurements

4.2.1. The instruments mentioned in Section 4.1.2. Gage on page 2measure magnetic fieldsurrounding the part. This magnetic field will vary considerably according to the position of themagnetic field in the part. The limits of acceptance therefore refer to the maximum readingobtainable while scanning the entire part with the gage point in contact with the part.

4.2.2. The Bell Gaussmeter (or other gage) readings are to be taken with the short transverseprobe with the small protective shield retracted. The probe is to be in contact with the part andwafer element parallel to the surface of the part. Axial probe may be used where they prove to beeasier to use and better correlate to the EMU series meters.

4.2.2.1. Move in cautiously on the object being tested, be sure the pointer remains on scale.Instruments should be kept a reasonable distance from heavily magnetized parts anddemagnetizing equipment. The movement could be rendered ineffective if the pointer is allowedto go beyond full scale.

4.2.3. The Electromatic gage readings are to be taken with the case in contact with the surfaceof the part. The gage contact area of the case is marked and is found below the hinge point of theindicator needle.

4.2.4. When the meter is not in close proximity to the part, and oriented as it will be when incontact with the part, note the position of the needle on the scale. This position should beconsidered zero for purpose of reading the needle deflection to determine residual magnetism.

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4.3. Limits Of Acceptance

4.3.1. Group A: (See Appendix A: Tables on page 4).

The maximum acceptable level of magnetism in Group A ferrous engine parts is 15 Gauss. Thiscorresponds to a gage reading of 15, or three divisions, on the Electromatic Gage, Model EMU-10,for example.

4.3.2. Group B: (See Appendix A: Tables on page 4).

The maximum acceptable level of magnetism in Group B ferrous engine parts is 5 Gauss. This

corresponds to a gage reading of 5, or one division, on the Electromatic Gage, Model EMU-10 forexample.

4.4. Rework

All parts exceeding these values are to be demagnetized until they are within the acceptable limits.

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Appendix A: Tables

Group A

A

Accessory Drive Gears

Adjuster, Hydraulic Lash

Adjusting Screw(Rocker Lever)

All Internal Drive Train

Armature & Valve

Armature & PlungerB

Barrel,Air Fuel Control

Bearing Caps

Bearing Shells

Block, Cylinder

Body, Solenoid Valve

Bushings (All Steel or Steeplejack)

C

Cam Follower Shafts

Cam Follower Studs

Cam Followers

Cam Rollers

Camshaft

Camshaft Gears

Camshaft Idler Gears

Capscrew, 12 Point, Grade 8

Chain

Chain Sprocket

Clamp, Injector Hold Down

Connecting Rod Bolts

Connecting Rod Caps

Connecting Rods

Crankcase, Air Compressor

Crankshaft, Air CompressorCrankshaft Engine (Crankpin &

Main Bearing Journals only)

Crankshaft Gears

C (Continued)

Crosshead, Valve

Cylinder Head Bolts

Cylinder Heads

Crown, Articulated Piston

D

Dip SticksDisk, Valve

F

Fan

Fan Hub Shafts

Fuel Pump Plugs

Fuel Pump Gears Covers

Fuel Pump Gears

Fuel Pump Drive & Idler Shafts

Fuel Pump Regulator Plungers

Fuel Pump Springs

G

Gear

Gear Covers

Generator Drive Gears, etc.

Governor Weights

H

Housing, Armature

Hubs, Vibration Damper

I

Idler Gears

Idler Pulleys

Injector Adapters

Injector Barrels

Injector Body

Injector Control Valve Assembly

I (Continued)

Injector Coupling Retainer Cage

(N14)

Injector Coupling Retainer Cap-

screw

Injector Coupling Retainer

Fork(L10)Injector Cup Retainers

Injector Nozzle Retainer

Injector Oil Feed Lock Nut

Injector Plungers

Injector Return Spring Retainer

Injector Return Springs

Injector Tappet Body

Injector Top Stop Lock Nut

Injector Top Stop Screw

Injector Top Stop Shims

Injector Top/Upper Link

Injector Total Travel Cap

Injector Wear WasherInsert, Valve

L

Lever, Cam Follower

Lube Pump Drive Gears

Lube Pump Housing

M

Main Bearing Studs & Capscrews

N

Nut(Lock Nut for Rocker Levers)

O

Oil Seal Wear Sleeves

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Appendix A: Tables (Continued)

Group A (Continued)

P

Piston Pins, Engine

Piston Pins, Air Compressor

Piston Rings

Plunger, Air Fuel Control

Plunger,Prs. Regulator

R

Retaining Ring

Ring, Camshaft Gear Ret.

Ring, Retaining

Rocker Lever Shafts

Rocker Levers

S

Seal, Valve Stem

Seat, Solenoid Valve

Shield,Shutoff Valve

Shim

Spacer, Thrust RingSpacer, Valve Disk

Spring, Compression

Stamped Top Stop Spring Retainers

Stator, Solenoid

Steel

Steel Tubing

Steel Washers

Supercharger Drive Gears

T

Tappet Bodies

Tensioner, Chain

Terminal, ElectricalThrottle Shafts, P.T.F.P.

Top, Piston

T (Continued)

Turbocharger Shaft Blanks

V

Valve

Valve Rollers

Valve SpringsW

Water Pump Pulleys

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Appendix A: Tables (Continued)

Group B

IInjector Barrel

Injector Bias Spring

Injector Bias Spring Guide

Injector Bottom Stop Shim

Injector Check Balls

Injector Check Valve Body

Injector Check Valve PlungerInjector Check Valve Spring

Injector Clamp

Injector Coupling

Injector Cup

Injector Link

Injector Lower Plunger Spring

Injector Nozzle

Injector Nozzle Button

Injector Nozzle Needle

Injector Nozzle Retainer

Injector Nozzle Spring

Injector Orifice Plug

Injector Plungers

Injector Relief Valve Spring

Injector Relief Valve Spring Guide

Injector Retainer

Injector Return Spring

Injector Ring Valve

Injector Roll/Dowel Pin

Injector Screen

Injector Screen Clip

Injector Spacer

Injector Spacer Threaded Plug

Injector Spill Sleeve

Injector Spring HousingInjector Spring Retainer

Injector Tappet Ball Guide

Injector Tappet Lower Socket

Injector Tappet Plunger

Injector Tappet Snap Ring

Injector Tappet Spring Guide

Injector Tappet Springs