FTI LBOA-10-G Operating instructions

357987 Revision G, Log #01203
FTI OPERATIONS, MAINTENANCE, AND REPAIR MANUAL
Little Brute Offset Adapter
Part #2720-010, Log #1203
Revision G
March 22, 2022
Little Brute Offset Adapter with Finger Guard
This manual should be used in conjunction with the FTI
“Little Brute Puller Unit Operations, Maintenance, and Repair Manual”
401 Andover Park East
Seattle, Washington 98188-7605
USA [phone]
Units with a guard
meet the
requirements of
(see Section 1.0,
numbers 1 and 3)
Original Instruction

Fatigue Technology Inc. 401 Andover Park East Seattle, WA • USA 98188-7605 Tel: [phone] Fax: [phone]
357987 – Rev G
ABOUT FATIGUE TECHNOLOGY INC.
Fatigue Technology Inc. (FTI) is a world-leading aerospace engineering and manufacturing company. FTI
pioneered cold expansion technology (which provides solutions to fatigue problems associated with holes in metal
structures) back in 1969 and has advanced this science to develop innovative bushing and fastener products.
Complete systems of tooling are used worldwide to enhance the fatigue life of holes in airframes, turbine engines,
and other critical structures. These proprietary products and associated tooling may be covered by patents or
agreements owned by, or exclusively licensed to, Fatigue Technology Inc. Use of tooling procured from other than
a licensed source may constitute patent infringement.
The detailed tooling information in this manual was compiled and written by FTI. The tooling was designed
specifically for use with FTI’s Cold Expansion (Cx™) Systems. FTI cannot be held responsible for damage or
injury as a result of operating this equipment if it is used for other than the process intended, with any other tooling
not provided by FTI, or not used in accordance with the instructions contained in this manual. To avoid personal
injury, please observe all safety precautions and instructions. FTI reserves the right to change specifications or
configurations of equipment detailed in this manual as part of our ongoing technical and product improvement
programs. If you have any questions about the use or serviceability of this equipment, please contact our Sales
Department.
FTI’s Cold Expansion systems and processes are the subject matter of one or more of the following patents: 5,083,363; 5,096,349; 5,103,548;
5,127,254; 5,129,253; 5,218,854; 5,245,743; 5,305,627; 5,341,559; 5,380,136; 5,405,228; 5,433,100; 5,468,104; 6,077,010; 6,183,180;
6,487,767; 6,792,657; 6,990,722; 7,024,908; 7,100,264; 7,375,277; 7,406,777; 7,448,652; 7,509,829; 7,617,712; 7,641,430; 7,926,318;
7,946,628; 7,958,766; 8,057,144; 8,061,178; 8,069,699; 8,117,885; 8,128,308; 8,191,395; 1,061,276; 513,898; 692015124; 581,385;
69310828; 468,598; 69105390; 643,231; 69414946; 696,686; 785,366; 1032769; 1893875; 2019739; 1280621; 4819678; and other patents
pending. These systems and processes are tooling critical and must be performed in accordance with FTI’s specifications or controlling
documents. To ensure proper results from FTI’s cold expansion systems and to be licensed to use FTI’s patented processes, it is essential that
FTI’s complete integrated system of tooling be purchased and utilized. The use of tooling purchased from other than a licensed supplier
could jeopardize fatigue life enhancement and may constitute patent infringement.
FTI reserves the right to change the specifications or configurations of tooling detailed in this manual as part of its
ongoing technical and product information program. Should inconsistencies occur between your tooling and this
manual, please contact our Sales Department.
The FTI staff of professionals provides a full range of support services including:
•Application engineering
•Detailed project planning, implementation, and management
•On-site assistance, including training and tool room setup
The Sales Department is always available to assist with special fatigue enhancement requirements. Please contact
FTI with questions at any time.

Fatigue Technology Inc. 401 Andover Park East Seattle, WA • USA 98188-7605 Tel: [phone] Fax: [phone]
357987 – Rev G
TABLE OF CONTENTS
SECTION DESCRIPTION PAGE
1.0 Introductory Information—Little Brute Offset Adapter ..................................................................... 1
2.0 Safety .................................................................................................................................................. 3
3.0 Little Brute Offset Adapter Specifications.......................................................................................... 4
4.0 Assembly and Usage of the Little Brute Offset Adapter .................................................................... 6
5.0 Procedure for Threaded Mandrel Slide Assembly............................................................................ 10
6.0 Procedure for Tang Mandrel Slide Assembly ............................................................................ 12
7.0 Illustrated Parts Breakdown.............................................................................................................. 14
FIGURES
Figure 1-1 Little Brute Offset Adapter Parts with Guard ..................................................................................... 2
Figure 1-2 Little Brute Offset Adapter Parts without Guard ................................................................................ 2
Figure 3-1 Little Brute Offset Adapter with Metal Guard.................................................................................... 5
Figure 3-2 Little Brute Offset Adapter with Neoprene Guard.............................................................................. 5
Figure 4-1 Little Brute Puller Unit, Nosecap Removed ....................................................................................... 6
Figure 4-2 Little Brute Puller Unit, Barrel Removed ........................................................................................... 6
Figure 4-3 Little Brute Puller Unit, Mandrel Adapter Removed.......................................................................... 7
Figure 4-4 Little Brute Offset Adapter, Jaw Installation...................................................................................... 7
Figure 4-5 Little Brute Offset Adapter Connection to Little Brute Puller Unit.................................................... 8
Figure 4-6 Starting Hole Gage.............................................................................................................................. 8
Figure 4-7 Mandrel Check Gage .......................................................................................................................... 9
Figure 5-1 Little Brute Piston Rod and Slide Assembly, Threaded Mandrel..................................................... 10
Figure 5-2 Sleeve Installation with Guard.......................................................................................................... 10
Figure 5-3 Verification Gage.............................................................................................................................. 11
Figure 6-1 Little Brute Piston Rod and Slide Assembly, Tang Mandrel............................................................ 12
Figure 6-2 Sleeve Installation, Tang Mandrel .................................................................................................... 12
Figure 6-3 Slide Assembly with Guard .............................................................................................................. 13
Figure 6-4 Verification Gage.............................................................................................................................. 13
Figure 7-1 Diagrams of LBOA Assemblies ....................................................................................................... 14
E.C. Declaration of Conformity.................................................................................................................................. 18
TABLES
Table 3-1 Little Brute Offset Adapter Specifications with Metal Guard ............................................................ 4
Table 3-2 Little Brute Offset Adapter Specifications without Guard ................................................................. 4
Table 3-3 LBOA-10-RA1 Adapter Specifications with Neoprene Guard .......................................................... 4
Table 7-1 Itemized Parts List ............................................................................................................................ 15

Fatigue Technology Inc. 401 Andover Park East Seattle, WA • USA 98188-7605 Tel: [phone] Fax: [phone]
357987 – Rev G
TABLE OF CONTENTS (Continued)
SECTION DESCRIPTION PAGE
APPENDIX
Appendix A Converting the Little Brute Offset Adapter into a Broach Puller ..................................................... 17

Fatigue Technology Inc. 401 Andover Park East Seattle, WA • USA 98188-7605 Tel: [phone] Fax: [phone]
357987 – Rev G 1
SECTION 1.0: INTRODUCTORY INFORMATION—LITTLE BRUTE OFFSET ADAPTER
This instruction manual contains information on the operation and maintenance of the Little Brute Offset Adapter
(LBOA) designed by Fatigue Technology Inc. (FTI) for use with the patented Split Sleeve Cold Expansion™
(SsCx™) process. To obtain optimum performance and many years of trouble-free service, carefully follow
maintenance procedures and operate the LBOA properly.
Read this manual before operating the LBOA, and retain the manual for future reference. If requested, FTI will
provide this manual in the language of the end-user.
There are three variants of the Little Brute Offset Adapter:
1. Little Brute Offset Adapter with Finger Guard (shown in Figure 1-1): These are available by adding “-G” to the
end of the LBOA-xx model number. These units provide safety improvements that comply with the
European Council’s Machinery Directive 2006/42/EC.
2. Little Brute Offset Adapter without Finger Guard (shown in Figure 1-2): These are available by the LBOA-xx
model number and offer access to more restricted areas (see Figure 3-1).
3. Little Brute Offset Adapters with added restricted access benefits at the face of the unit:This variant has
45 degree angles cut into the housing and backup plate/nosecap. These units have model numbers like
LBOA-xx-RAx; review the Tables in Section 3.0 to determine which model numbers comply with the
European Council’s Machinery Directive 2006/42/EC.
The Little Brute Offset Adapter:
•Is capable of cold expanding holes in restricted access areas up to 1/2-inch diameter in aluminum and mild steel
and 7/16-inch diameter in titanium and high-strength steel.
•Attaches to the Little Brute (LB) series of puller units. See the Little Brute Puller Unit Operations,
Maintenance, and Repair Manual for additional safety information.
•Weighs approximately 6.5 pounds (2.95kg); with the LB puller unit, it weighs approximately 17 pounds
(7.71kg).
•Requires only 0.300-inch lateral clearance (see Figure 3-1).
•Has a maximum pull force of 7,000 pounds (generated by the Little Brute Puller Unit).
•Identification is provided by machined model and serial numbers.

Fatigue Technology Inc. 401 Andover Park East Seattle, WA • USA 98188-7605 Tel: [phone] Fax: [phone]
2357987 – Rev G
Figure 1-1
Little Brute Offset Adapter Parts with Guard
Figure 1-2
Little Brute Offset Adapter Parts without Guard
Cover Plate
Little Brute
Mating Thread
Finger Guard
Housing
Backup Plate
(Nosecap attaches here)

Fatigue Technology Inc. 401 Andover Park East Seattle, WA • USA 98188-7605 Tel: [phone] Fax: [phone]
357987 – Rev G 3
SECTION 2.0: SAFETY
Safe operation of the LBOA is of paramount concern. Along with standard shop safety practices (eye protection,
safe handling of high-pressure equipment, etc.), the following items are peculiar to the LBOA/puller unit assembly:
1. Disconnect the LB Puller Unit from PowerPak before attaching the LBOA.
2. CAUTION: Pinch point risk.
3. CAUTION: Keep fingers out of the slide channel.
4. Use the self-alignment nut for tooling numbered 14-0-N through 16-0-N to prevent mandrel breakage.
5. When using the self-alignment nut, ensure the nut retainer is in place. Bending the nut retainer may cause
damage or failure.
6. Take care not to scratch the puller piston rod of the LB puller unit.
7. Observe all safety precautions associated with the LB Puller Unit and PowerPaks, as listed in their separate
manuals.
IMPORTANT: FTI completed a risk assessment on this unit at our factory. Any modifications done by a third
party or the final user are excluded from that risk assessment. As a result, modifications done by a third party or the
final user nullify the CE marking.

Fatigue Technology Inc. 401 Andover Park East Seattle, WA • USA 98188-7605 Tel: [phone] Fax: [phone]
4357987 – Rev G
SECTION 3.0: LITTLE BRUTE OFFSET ADAPTER SPECIFICATIONS
Table 3-1
Little Brute Offset Adapter Specifications with Metal Guard
Model
Number
Maximum
Material
Stackup
(inch)
Adapter Width
W
(inch)
Combined Puller
and Adapter
Length (OAL)
(inch)
Adapter Length
L
(inch)
Frontside
Clearance F
(inch)
LBOA-10-G
1.0
1.65
11.8
6.7
4.75
LBOA-15-G
1.5
1.65
13.3
7.7
5.25
LBOA-20-G
2.0
1.65
14.8
8.7
5.75
LBOA-25-G
2.5
1.65
16.3
9.7
6.25
LBOA-30-G
3.0
1.65
17.8
10.7
6.75
LBOA-35-G
3.5
1.65
19.3
11.7
7.25
Table 3-2
Little Brute Offset Adapter Specifications without Guard
Model Number
Maximum
Material
Stackup
(inch)
Adapter Width
W
(inch)
Combined Puller and
Adapter Length
(OAL)
(inch)
Adapter Length
L
(inch)
Frontside
Clearance F
(inch)
LBOA-10
1.0
1.5
11.8
6.7
4.05
LBOA-15
1.5
1.5
13.3
7.7
4.55
LBOA-20
2.0
1.5
14.8
8.7
5.05
LBOA-25
2.5
1.5
16.3
9.7
5.55
LBOA-30
3.0
1.5
17.8
10.7
6.05
LBOA-35
3.5
1.5
19.3
11.7
6.55
LBOA-25-RA3
2.5
1.4
16.3
9.7
5.55
Table 3-3
LBOA-10-RA1 Adapter Specifications with Neoprene Guard*
Model Number
Maximum
Material
Stackup
(inch)
Adapter Width
W
(inch)
Combined Puller and
Adapter Length
(OAL)
(inch)
Adapter Length
L
(inch)
Frontside
Clearance F
(inch)
LBOA-10-RA1
1.0
1.5
11.8
6.7
4.05
* Specifications on other LBOA units not available at time of printing.
Note: The LBOA-20 or LBOA-20-G is standard.
Nosecap Selection: The LBOA uses special LBOA nosecaps (refer to FTI Tooling Catalog, Section 2).
Mandrel Selection: The LBOA uses special LBOA mandrels (refer to FTI Tooling Catalog, Section 2). See
Figure 3-1.

Fatigue Technology Inc. 401 Andover Park East Seattle, WA • USA 98188-7605 Tel: [phone] Fax: [phone]
357987 – Rev G 5
Figure 3-1
Little Brute Offset Adapter with Metal Guard
Figure 3-2
Little Brute Offset Adapter with Neoprene Guard
.23
W
4.9
L (ref)
Neoprene Guard
F (ref)

Fatigue Technology Inc. 401 Andover Park East Seattle, WA • USA 98188-7605 Tel: [phone] Fax: [phone]
6357987 – Rev G
SECTION 4.0: ASSEMBLY AND USAGE OF THE LITTLE BRUTE OFFSET ADAPTER
Follow these steps to assemble and use the LBOA:
SAFETY:Disconnect the LB Puller Unit (see Figure 3-1) from the PowerPak before attaching the LBOA.
WARNING:Do not use without guard installed.
1. Remove the nosecap assembly from the LB Puller Unit (Figure 4-1).
Figure 4-1
Little Brute Puller Unit, Nosecap Removed
2. Unscrew and remove the barrel from the LB Puller Unit (Figure 4-2).
Figure 4-2
Little Brute Puller Unit, Barrel Removed

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357987 – Rev G 7
3. Remove the mandrel adapter from the piston rod (Figure 4-3).
Figure 4-3
Little Brute Puller Unit, Mandrel Adapter Removed
4. Select the proper LBOA slide assembly (for tang mandrel, threaded mandrel, or broach). If the proper slide
assembly is already installed, disregard Steps 5 and 6.
5. Remove the backup plate from the LBOA and insert the slide assembly into the housing (Figure 4-4).
6. Install the proper backup plate, special jaw plate, or special nosecap spacer (Figure 4-4).
7. If a standard backup plate is used, install the proper jaw on the LBOA (Figure 4-4).
Figure 4-4
Little Brute Offset Adapter, Jaw Installation
(Guard not shown for clarity)

Fatigue Technology Inc. 401 Andover Park East Seattle, WA • USA 98188-7605 Tel: [phone] Fax: [phone]
8357987 – Rev G
8. Screw the LBOA onto the Little Brute Puller Unit (Figure 4-5). Connect the piston first, then connect the
housing. Tighten the lockring.
Figure 4-5
Little Brute Offset Adapter Connection to Little Brute Puller Unit
(Guard not shown for clarity)
9. Ream the starting hole to the proper diameter.
10. Verify the starting hole diameter (SHD) using the stepped go/no-go end of a combination gage (Figure 4-6).
“GO”
Starting hole correct diameter.
Acceptable
Not Acceptable
“NO GO”
Starting hole too large.
Figure 4-6
Starting Hole Gage
Note: For a threaded slide assembly, refer to Section 5.0; for a tang assembly, refer to Section 6.0.

Fatigue Technology Inc. 401 Andover Park East Seattle, WA • USA 98188-7605 Tel: [phone] Fax: [phone]
357987 – Rev G 9
11. Select the proper mandrel and check the major diameter for wear by inserting the mandrel into a mandrel gage.
If the mandrel can pass through the gage, it is excessively worn and must be discarded (Figure 4-7).
Figure 4-7
Mandrel Check Gage

Fatigue Technology Inc. 401 Andover Park East Seattle, WA • USA 98188-7605 Tel: [phone] Fax: [phone]
10 357987 – Rev G
SECTION 5.0: PROCEDURE FOR THREADED MANDREL SLIDE ASSEMBLY
The LBOA will allow for the use of threaded (7/16-inch -20) mandrels or tang-style mandrels (Section 6.0). The
following instructions identify how to install threaded mandrels:
1. Pull the LBOA slide assembly back, thread in the mandrel, and return the slide assembly to its forward
position.
2. Thread the LB piston rod into the LBOA slide assembly, then thread the LBOA housing into the LB housing
(Figure 5-1). Ensure the O-ring on the LBOA housing is seated at the LB housing.
Figure 5-1
Little Brute Piston Rod and Slide Assembly, Threaded Mandrel
(Guard not shown for clarity)
3. Select and install the sleeve on the mandrel with the flare towards the nosecap. Insert the mandrel and sleeve
into the hole, as shown in Figure 5-2.
Figure 5-2
Sleeve Installation with Guard

Fatigue Technology Inc. 401 Andover Park East Seattle, WA • USA 98188-7605 Tel: [phone] Fax: [phone]
357987 – Rev G 11
4. Move the LB/LBOA assembly into position, holding the nosecap or nosecap spacer flush against the
workpiece. Press the LB trigger to retract the mandrel and cold expand the hole.
5. Verify that the hole has been properly cold expanded. See Figure 5-3.
Figure 5-3
Verification Gage

Fatigue Technology Inc. 401 Andover Park East Seattle, WA • USA 98188-7605 Tel: [phone] Fax: [phone]
12 357987 – Rev G
SECTION 6.0: PROCEDURE FOR TANG MANDREL SLIDE ASSEMBLY
The LBOA will allow for the use of tang-style mandrels or threaded (7/16-inch -20) mandrels (Section 5.0). The
following instructions identify how to install tang-style mandrels.
1. Thread the LB piston rod into the LBOA slide assembly, then thread the LBOA housing into the LB housing
(Figure 6-1).
Figure 6-1
Little Brute Piston Rod and Slide Assembly, Tang Mandrel
(Guard not shown for clarity)
2. Select and install the sleeve on the mandrel with the flare away from the nosecap. Insert the mandrel and
sleeve into the hole, as shown in Figure 6-2.
Figure 6-2
Sleeve Installation, Tang Mandrel

Fatigue Technology Inc. 401 Andover Park East Seattle, WA • USA 98188-7605 Tel: [phone] Fax: [phone]
357987 – Rev G 13
3. Position the LB/LBOA assembly and hook the LBOA slide assembly onto the mandrel tang (Figure 6-3).
Figure 6-3
Slide Assembly with Guard
4. Keep the nosecap spacer flush against the workpiece and press the LB trigger to retract the mandrel and cold
expand the hole.
5. Verify that the hole has been properly cold expanded (Figure 6-4).
Figure 6-4
Verification Gage

Fatigue Technology Inc. 401 Andover Park East Seattle, WA • USA 98188-7605 Tel: [phone] Fax: [phone]
14 357987
SECTION 7.0: ILLUSTRATED PARTS BREAKDOWN
Figure 7-1
Diagrams of LBOA Assemblies
(See following tables for part numbers)
LBOA-10-RA1
LBOA-xx-x

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357987 – Rev G 15
Table 7-1
Itemized Parts List
Piece
Number
Description
Applicable LBOA Assembly
Model Numbers
Part Number
Quantity
2 Slide Arm Assembly
LBOA-10
2580-002
1
LBOA-10-G
LBOA-15
2580-003
LBOA-15-G
LBOA-20
2580-004
LBOA-20-G
LBOA-20-ATP-RO
LBOA-20-1.12-1
LBOA-25
2580-005
LBOA-25-G
LBOA-30
2580-006
LBOA-30-G
LBOA-35
2580-007
LBOA-35-G
LBOA-25-RA3
2111-007
LBOA-20-SPL-727-1B
2111-008
LBOA-20-1.12-T6
2111-012
LBOA-10-RA1
2111-009
3 Housing
LBOA-10
2114-001
1
LBOA-10-G
LBOA-15
2114-002
LBOA-15-G
LBOA-20
2114-003
LBOA-20-G
LBOA-25
2114-004
LBOA-25-G
LBOA-25-RA3
LBOA-20-SPL-727-1B
LBOA-30
2114-005
LBOA-30-G
LBOA-35
2114-006
LBOA-35-G
LBOA-20-ATP-RO
2114-007
LBOA-20-APL-727-1B
2114-008
LBOA-20-1.12-1
2114-009
LBOA-20-1.12-T6
LBOA-10-RA1
2436-001
4
Lockring
All
2120-001
1

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16 357987
Table 7-1 (Continued)
Itemized Parts List
Piece
Number
Description
Applicable LBOA Assembly
Model Numbers
Part Number Quantity
5 Cover
LBOA-10
2101-001
1
LBOA-10-G
LBOA-15
LBOA-15-G
LBOA-20
LBOA-20-G
LBOA-25
LBOA-25-G
LBOA-30
LBOA-30-G
LBOA-35
LBOA-35-G
LBOA-25-RA3
LBOA-20-SPL-727-1B
LBOA-20-1.12-1
LBOA-20-1.12-T6
LBOA-20-ATP-RO
2101-002
LBOA-10-RA1
Not Applicable
6 Backup Plate
LBOA-10
2122-001
1
LBOA-10-G
LBOA-15
LBOA-15-G
LBOA-20
LBOA-20-G
LBOA-25
LBOA-25-G
LBOA-30
LBOA-30-G
LBOA-35
LBOA-35-G
LBOA-25-RA3
LBOA-20-SPL-727-1B
LBOA-20-ATP-RO
2122-002
LBOA-20-1.12-1
5251-001
LBOA-10-RA1
2439-004
7
O-Ring
All
1046-016
1
8 Flat Head Screw
All, except LBOA-10-RA1
1029-020
2
LBOA-10-RA1
1029-017
9
“FTI” Label
All
1009-094
2
10
“Caution…” Label
All
1009-247
2
11 (one-piece
arm assembly)
“Do Not Strike” Label All 1009-248 1
11 (two-piece
arm assembly)
Barrel Nut Retainer
All
2984-002
1
Barrel Nut Retainer Screws
All
1029-032
2
12
“Caution…” Label
All
1009-242
1