Farr KT5500 - Assembly Procedures

KT5500 5-
1
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2
” Tong & CLInCHER® BaCKup
SECTIon ConTEnTS
3.11
TECHnICaL ManuaL
MaInTEnanCE
ALL FASTENERS USED DURING REASSEMBLY OF LOAD-BEARING COMPONENTS (CHAIN
SLINGS, RIGID SLINGS, BACKUP LEGS) MUST BE TIGHTENED TO THE CORRECT TORQUE.
THREADED FASTENERS USED IN LOAD-BEARING DEVICES MUST BE SECURED WITH RED LOC-
TITE™.
H. ASSEMBLY PROCEDURES
Assembly of Farr Hydraulic Power Tongs is straightforward, and can be accomplished without the use of special tools. The
instructionsonthispagearepresentedasaguideonly,andaresimilartotheassemblysequenceourtechnicianwouldusewhile
assemblingthetonginourplant.
TIGHTENING TORQUE GUIDE
SAE GRADE 8 - FINE THREAD
SIZE CLAMP LOAD PLAIN PLATED
1/4-28(.250) 3,263 14ft.lbs. 10ft.lbs.
5/16-24(.3125) 5,113 27ft.lbs. 20ft.lbs.
3/8-24(.375) 7,875 49ft.lbs. 37ft.lbs.
7/16-20(.4375) 10,650 78ft.lbs. 58ft.lbs.
1/2-20(.500) 14,400 120ft.lbs. 90ft.lbs.
9/16-18(.5625) 18,300 172ft.lbs. 129ft.lbs.
5/8”-18(.625) 23,025 240ft.lbs. 180ft.lbs.
3/4-16(.750) 33,600 420ft.lbs. 315ft.lbs.
7/8”-14(.875) 45,825 668ft.lbs. 501ft.lbs.
1-12(1.000) 59,700 995ft.lbs. 746ft.lbs.
1-14(1.000) 61,125 1019ft.lbs. 764ft.lbs.
11/8-12(1.125) 77,025 1444ft.lbs. 1083ft.lbs.
11/4-12(1.125) 96,600 2012ft.lbs. 1509ft.lbs.
13/8-12(1.375) 118 ,350 2712ft.lbs. 2034ft.lbs.
11/2-12(1.500) 142,275 3557ft.lbs. 2668ft.lbs.
SAE GRADE 8 - COARSE THREAD
SIZE CLAMP LOAD PLAIN PLATED
1/4-20(.250) 2,850 12ft.lbs. 9ft.lbs.
5/16-18(.3125) 4,725 25ft.lbs. 18ft.lbs.
3/8-16(.375) 6,975 44ft.lbs. 33ft.lbs.
7/16-14(.4375) 9,600 70ft.lbs. 52ft.lbs.
1/2-13(.500) 12,750 106ft.lbs. 80ft.lbs.
9/16-12(.5625) 16,350 153ft.lbs. 115ft.lbs.
5/8”-11(.625) 20,325 212ft.lbs. 159ft.lbs.
3/4-10(.750) 30,075 376ft.lbs. 282ft.lbs.
7/8”-9(.875) 41,550 606ft.lbs. 454ft.lbs.
1-8(1.000) 54,525 909ft.lbs. 682ft.lbs.
11/8-7(1.125) 68,700 1288ft.lbs. 966ft.lbs.
11/4-7(1.125) 87,225 1817ft.lbs. 1363ft.lbs.
13/8-6(1.375) 103,950 2382ft.lbs. 1787ft.lbs.
11/2-6(1.500) 126,450 3161ft.lbs. 2371ft.lbs.
REPLACEMENT FASTENERS MUST BE GRADE 8 OR EQUIVALENT, UNLESS OTHERWISE SPECI-
FIED BY MCCOY DRILLING & COMPLETIONS.