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GAGEMAKER LG-6001 Operation Manual Download Page 20

Lead Gage Operation Manual 

Model LG-6001 

 

 

Copyright © 2016 Gagemaker. All rights reserved

 

 

20 

Care and Maintenance 

 

Replacing the Indicator 

 

Materials Needed: 

 

 

Lead gage 

 

Hex wrench 

 

Indicator 

 

Phillip’s head screwdriver 

 
 
 
 
 
1.  Using a hex wrench, remove the four screws 

from the back of the gage. 
 

2.  Remove the handle. 

 
 
 
 
 
 
 
 
 
 
 
 
 
 

 
 
 
 
3.  Remove the eight screws on contact point 

holder bar. 

 
4.  Remove contact point holder bar from the gage 

body. 

 
 
 
 
 
 
 
 
 
 
 
 
 
 

 
 
 
 
 
 
5.  Remove the side cover.  

 
 
 
 
 
 
 
 
 
 
 
 
 
 

Summary of Contents for LG-6001

Page 1: ...LG 6001 Lead Gage OPERATION MANUAL ...

Page 2: ...Lead Gage Operation Manual Model LG 6001 Copyright 2016 Gagemaker All rights reserved 2 2016 Gagemaker LP OMLG60014 16 ...

Page 3: ... Information and Updates 7 Parts List Parts List 9 Setup Procedures Setting Up the Lead Gage 10 Adjusting the Lead Gage 13 Zeroing the Lead Gage 15 Operating Procedures Inspecting Parts 18 Care and Maintenance Replacing the Indicator 20 Maintenance Tips 23 Warranty Information 23 Products Requiring Repair or Calibration Return Process 23 ...

Page 4: ...Lead Gage Operation Manual Model LG 6001 Copyright 2016 Gagemaker All rights reserved 4 ...

Page 5: ...high performance and operation of our product we urge you to use the included reference materials They contain important information for proper setup and use of the equipment Also we recommend that you follow the care and maintenance tips in this manual to keep the equipment working in top condition If your questions have not been addressed in our reference materials contact your local representat...

Page 6: ...Lead Gage Operation Manual Model LG 6001 Copyright 2016 Gagemaker All rights reserved 6 ...

Page 7: ...complete stability when taking thread lead measurements Before inspecting parts the lead gage must be preset to a nominal predetermined dimension using a lead gage setting standard These setting standards are manufactured according to ANSI and API specifications with grooves ground at precise increments Lead standards are available for ACME Stub ACME UN and API threads refer to the table in the pr...

Page 8: ...Lead Gage Operation Manual Model LG 6001 Copyright 2016 Gagemaker All rights reserved 8 ...

Page 9: ...sher 4 2 827 1 2 Bearing Pack Assembly 4 2 815 1 12 Handle 4 2 829 1 3 Body 4 2 819 1 13 LG 6001 Contact Point 4 2 894 1 4 Side Cover 4 2 820 1 14 Indicator 157SSGA 8 0 270 1 5 Base Plate 4 2 821 1 15 Flat Head Socket Screw 8 0 607 4 6 Contact Point Holder Bar 4 2 822 1 16 2 Plastite Screw 8 0 624 8 7 Drive Nut 4 2 823 1 17 SHCS 2 56 X 12 0 045 2 8 Thumb Knob 4 2 824 1 18 SCHCS 4 40 X 1 32 12 0 21...

Page 10: ...T144T 4 5 pitch T128 4 pitch T128T 5 pitch T115 5 pitch T105T 5 5 pitch T105 6 7 pitch T090T 6 pitch T096 8 pitch T062T 8 pitch T072 10 pitch T050T 10 pitch T057 12 pitch T041T 12 pitch T050 14 pitch T041T 14 pitch T041 16 pitch T032T 16 pitch T041 18 pitch T032 API Threads Connection Type Point Diameter Thread Pitch Contact Point Model Number Hughes Slim Line H 90 0 235 3 T235 All Hughes H 90 0 2...

Page 11: ...ired for the inspection by counting thread roots 2 Select the correct contact points to install in the gage based on the connection thread type and pitch size refer to tables on the previous page 3 Verify the diameter of the contact point ball using calipers or a micrometer 4 Install a contact point into the moveable holder at the front of the gage 54 6 7 10 8 3 2 ...

Page 12: ...the Lead Gage continued 5 Determine the location of the remaining contact point based on the interval required to measure the part from Step 1 6 Install the contact point into the fixed holder at the rear of the gage 7 Once installed insert a paper clip into the hole in each contact point and tighten ...

Page 13: ... the screw at the front of the gage with a hex wrench to loosen the rear contact point 2 Place the gage on the lead standard and turn the adjustment knob at the rear of the gage until the rear contact point is aligned with the appropriate groove 3 Continue rotating the adjustment knob until the indicator needle makes one full revolution of preload 4 Lock the indicator knob ...

Page 14: ...Lead Gage Operation Manual Model LG 6001 Copyright 2016 Gagemaker All rights reserved 14 Adjusting the Lead Gage continued 5 Tighten the screw on the front of the gage with a hex wrench ...

Page 15: ...w to ensure consistent and accurate readings The lead gage should be zeroed on a standard once during each shift at a minimum Connection Type Taper in ft Threads per Inch Lead Gage Standard Model Number 8 10 Round Tubing Casing 8 10 LS 1001 8 10 V Form Tubing straight 0 8 10 LS 1002 Line Pipe Tubing Casing 11 LS 1003 Line Pipe straight 0 11 LS 1004 13 smaller Buttress Casing 5 LS 1005 16 larger Bu...

Page 16: ...e contact point into the first groove of standard 3 With the two contact points properly seated in the grooves of the standard sweep the moveable contact point from side to side in order to obtain the smallest indicator reading needle changes direction For Non V threads pull the lead gage toward the load flank of the groove in the standard For V threads be sure the contact points touch both flanks...

Page 17: ...ad Gage Operation Manual Model LG 6001 Copyright 2016 Gagemaker All rights reserved 17 Zeroing the Lead Gage continued 4 Turn the indicator dial to align the needle with zero 5 Tighten the indicator clamp ...

Page 18: ...ead gage s contact points in the flanks of the thread to obtain an indicator reading The two point system on the lead gage provides accurate readings 1 Place the fixed contact point into the thread next to the first scratch on the part or first full thread 2 Rock the gage forward and seat the moveable contact point into the thread Use your index finger to apply just enough pressure to maintain the...

Page 19: ... 4 Move the gage to the next thread repeat the sweeping action and note the indicator reading 5 Move the gage to a thread at the rear of the part and seat the moveable contact point in the last full thread 6 Sweep the gage from left to right in order to obtain an indicator reading Take note of the reading 7 Record the maximum lead error on an inspection report 8 During the inspection process perio...

Page 20: ...acing the Indicator Materials Needed Lead gage Hex wrench Indicator Phillip s head screwdriver 1 Using a hex wrench remove the four screws from the back of the gage 2 Remove the handle 3 Remove the eight screws on contact point holder bar 4 Remove contact point holder bar from the gage body 5 Remove the side cover ...

Page 21: ...he indicator out of the gage body 5 Replace the contact point in the new indicator with the contact point from the old indicator Note The contact point that comes installed in the new indicator will not work in the LG 6001 gage because it uses a special contact point 6 Place the new indicator assembly back into the body of the gage ...

Page 22: ...22 Replacing the Indicator continued 7 Replace the side cover 8 Place the contact point holder bar onto the gage body 9 Replace the eight screws into the contact point holder bar and tighten 10 Place the handle on the back of the gage 11 Insert the four screws into the handle and tighten ...

Page 23: ...ven Gagemaker written notice of any such claimed defect within 15 days of receipt Any defective product must be properly packed and shipped to the Gagemaker factory in Pasadena Texas USA This warranty applies to all products when used in a normal industrial environment Any unauthorized tampering misuse or neglect will make this warranty null and void Under no circumstances will Gagemaker or any af...

Page 24: ...Gagemaker LP P O Box 87709 Houston Texas 77287 7709 712 East Southmore Ave Pasadena Texas 77502 Phone 713 472 7360 Fax 713 472 7241 Web site www gagemaker com ...

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