Farr KT5500, Technical Manual

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KT5500 5-
1
/
2
” T
ong
& CLInCHER® B
aCKup
S
ECTIon
C
onTEnTS
3.11
T
ECHnICaL
M
anuaL
M
aInTEnanCE
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.