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- Page 1 401 Andover Park East Seattle, Washington 98188-7605 USA (206) 246-2010 FTI OPERATIONS, MAINTENANCE, AND REPAIR MANUAL Little Brute Puller Unit FTI Part #2720-006, Log #01151 Revision L May 4, 2022 Original Instruction 57429 Revision L, Log #01151...
- Page 2 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 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.
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Page 3: Table Of Contents
TABLE OF CONTENTS SECTION DESCRIPTION PAGE Introduction ............................1 About the Little Brute Puller Unit ................... 1 General Description ......................... 1 General Specifications ......................2 Safety ..............................4 Puller Unit Operating Instructions ...................... 6 Puller Unit Setup Procedure and Operation................6 Activation of Puller Unit ...................... - Page 4 TABLE OF CONTENTS (Continued) SECTION DESCRIPTION PAGE Figures (Continued) Figure 6.1-1 Diagram of Little Brute Rework Kit Parts (LB-CT-RK) ..............15 Figure 6.2-1 Diagram of Little Brute Assembly (LB-SK) ..................16 Figure 6.3-1 Diagram of Previous Little Brute Trigger Assembly ................ 17 Figure 6.4-1 Little Brute Assembly ........................
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Page 5: Introduction
All puller units operate in conjunction with either of FTI’s PowerPak air-hydraulic power units: the standard FT-200 or portable FT-20 (and compatible with older units IW100MF and IW10MF). The Little Brute has proven to be very reliable and requires minimal maintenance. -
Page 6: General Specifications
The LB may also be adapted to tang or pintail mandrels using LB-CA and LB-PC chuck assemblies, respectively. See FTI’s comprehensive Tooling Catalog for more information. Figures 1.3-1 and 1.3-2 show the parts and specifications of the Little Brute Puller Unit. -
Page 7: Figure 1.3-2 Little Brute Specifications
L (ref) F (ref) Maximum Model Material Weight Stroke Number Stackup (inch) (inch) (lb.) (inch) (inch) LB-10 10.75 (25.4 mm) (233.7 mm) (101.6 mm) (47.8N) (50.8 mm) LB-15 10.2 11.00 (38.1 mm) (259.1 mm) (114.3 mm) (48.9N) (66.0 mm) LB-20 11.2... -
Page 8: Safety
All new Little Brute Puller Units have been modified to ensure operator safety. However, rework instructions are available from FTI for any Little Brute Puller Units that do not have a roll pin and air seal adapter (shown in Figure 6.4-1). - Page 9 20. If hoses require replacement, contact FTI’s Sales Department. 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.
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Page 10: Puller Unit Operating Instructions
5. Remove thread protectors from the hydraulic fittings and thread the hydraulic hose fitting from the puller unit (male) onto the hydraulic fitting of the FTI PowerPak (female). Wipe fittings clean prior to connecting. 6. Thread couplers completely together. There should be positive contact (no space) between the PowerPak coupler and the hose fitting flange. -
Page 11: Puller Unit Maintenance
4.0: P ECTION ULLER AINTENANCE The puller requires routine checking and periodic preventative maintenance to ensure safe, trouble-free operation. No special maintenance is required. The following maintenance actions are suggested. CAUTION: Before attempting any maintenance operations on the puller unit, disconnect the PowerPak from the air supply or disconnect the puller from the PowerPak or hand pump. - Page 12 NOTE: Since it is necessary to hold the piston rod stationary to remove the threaded adapter (10), use a screwdriver in the slot (some models may have a hex wrench hole) in the back end of the piston to keep the piston rod from turning. DO NOT scratch the piston shaft during disassembly. Remove the piston rod assembly (3, Figure 6.4-1) by pushing on the threaded end (nosecap end) of the piston rod until threads engage the sleeve (5, Figure 6.4-1).
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Page 13: Re-Assembly
RE-ASSEMBLY Refer to Section 6.0 for parts lists. All numbers below refer to location numbers in Figure 6.4-1. IMPORTANT: 1. Thoroughly clean all parts prior to reassembly. 2. Check to see if O-rings are installed toward the hydraulic flow with Teflon backup rings behind. -
Page 14: Troubleshooting
This section provides solutions to some basic trouble spots. If you cannot solve your operational problems with the information provided in this section, please contact your nearest FTI representative. NOTE: Should difficulties originate in the PowerPak, consult the specific PowerPak Operations, Maintenance and Repair Manual. -
Page 15: Figure 5.0-3 Hydraulic Quick Coupler
PROBLEM CAUSE SOLUTION 2. Puller retracts on first trigger (a) The hydraulic quick coupler (a) Once hydraulic pressure has actuation but will not return to line has not been completely been introduced to the start position. The hydraulic tightened at the PowerPak hydraulic hose, the pressure hose is difficult to bend or coil manifold (there should be no... -
Page 16: Figure 5.0-7 Trigger Response Valves
(a) Adjust PowerPak pressure valve: maintain sufficient pressure adjusting (applicable to (1) Squeeze trigger on puller unit (6,000 psi (41.37MPa).) FTI-200 PowerPak only). to activate PowerPak. (2) If pressure does not reach 6,000 psi (41.37MPa), loosen lockring and turn hydraulic... -
Page 17: Figure 5.0-8 Pressure Gage (Ft-200)
(68.95 MPa). (4) If mandrel remains stuck at 10,000 psi (68.95MPa), disengage the mandrel from the puller. Push the mandrel out. Contact FTI’s Sales Department for additional assistance. Fatigue Technology Inc. 401 Andover Park East Seattle, WA • USA 98188-7605... -
Page 18: Illustrated Parts Breakdown
One FTI-CT-RK or LB-CT-RK kit is required for each puller converted. Only one FTI-CT-RKT is required regardless of the number of pullers converted. The FTI-CT-RKT kit includes the tools (punch, tap, etc.) required and detailed instructions on how to perform the modification. -
Page 19: Little Brute Rework Kit; Parts List And Diagram
Adapter, LB Air Seal (seal and fitting) 2339-001 LB-CT-RK Screw, SHC (8-32UNCX 3/8) 1026-002 LB-CT-RK Pushbutton, Brass 1187-623 LB-CT-RK and FTI-CT-RK Retaining Ring, Internal 1187-624 LB-CT-RK and FTI-CT-RK Sleeve, Puller Handle Trigger 3196-001 LB-CT-RK and FTI-CT-RK Adapter, LB Hydraulic 2039-001... -
Page 20: Little Brute Seal Kit; Parts List And Diagram
LITTLE BRUTE SEAL KIT; PARTS LIST AND DIAGRAM All Little Brute Puller Units with serial numbers less than the serial numbers on Table 6.0-1 will use Piece Number 2 to replace the seal in the trigger assembly (see Section 6.3). A diagram of the Little Brute Puller Unit is shown in Figure 6.2-1, with parts for the seal kit corresponding to Table 6.2-1. -
Page 21: Previous Little Brute Trigger Assembly; Parts List And Diagram
Assembly Kit (FTI-CT-RK) or the Little Brute Rework Kit (LB-CT-RK), and the Puller Trigger Rework Tool Kit (FTI-CT-RKT) in Section 6.1. A diagram of the Little Brute Puller Unit is shown in Figure 6.3-1, with parts for the previous trigger assembly corresponding to Table 6.3-1: Table 6.3-1... -
Page 22: Little Brute Puller Assembly; Parts List And Diagram
LITTLE BRUTE PULLER ASSEMBLY; PARTS LIST AND DIAGRAM A diagram of the Little Brute Puller Unit is shown in Figure 6.4-1, which corresponds to the parts list in Table 6.4-1 on the following page. Figure 6.4-1 Little Brute Assembly Fatigue Technology Inc. 401 Andover Park East Seattle, WA •... -
Page 23: Little Brute Parts List
1187-770 Part numbers dependent on applicable puller unit (-10, -20, -25, etc.). Chuck assemblies may be substituted for tang-style or pintail mandrels. Contact FTI for assistance. Contained as part of the Air Seal Adapter, part number LB-D9. All new Little Brute handles are equipped with new cartridge trigger assembly (see Section 6.1). - Page 24 This page intentionally left blank. Fatigue Technology Inc. 401 Andover Park East Seattle, WA • USA 98188-7605 Tel: (206)246-2010 Fax: (206)244-9886 57429 – Rev L...
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Page 25: Shipping/Receiving Bill Of Materials
7.0 S HIPPING ECEIVING ILL OF MATERIALS ECTION The following items are included in the case (item 1) shown below: 1. Pelican Case (6575-001) 2. Little Brute Puller Unit (LB-XX, varies by size ordered) Fatigue Technology Inc. 401 Andover Park East Seattle, WA •... - Page 26 3. Spanner Wrench (1045-018) 4. Pin Wrench (CBC-1-PW) 5. Operations, Maintenance, and Repair Manual (2720-006) Fatigue Technology Inc. 401 Andover Park East Seattle, WA • USA 98188-7605 Tel: (206)246-2010 Fax: (206)244-9886 57429 – Rev L...
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