Farr KT5500 - Page 72

KT5500 5-
1
/
2
” Tong & CLInCHER® BaCKup
SECTIon ConTEnTS
4.2
TECHnICaL ManuaL
TRouBLESHooTIng
TONG WILL NOT DEVELOP SUFFICIENT TORQUE Cont’d:
10. POSSIBLEPROBLEM:Loadcellismeasuringincorrectly.
 SOLUTION:Incorrectloadcellisbeingused.
 SOLUTION:Airistrappedintorquemeasuringcircuit(loadcell,hydraulicline,orgauge.Refertotorquemeasurementtrouble-
shootinginSection6ofthismanual.
 SOLUTION:Loadcellhasbeendamaged.Replaceloadcell,orreturntoMcCoyforrepairandre-calibration.
11. POSSIBLEPROBLEM:Incorrectmotorspeedselected.
 SOLUTION:Maximumtorquecanonlybedevelopedwhenmotorisinthelowestspeed.Ensuremotorisinlowspeed.
12. POSSIBLEPROBLEM:Incorrecttonggearselected.
 SOLUTION:Maximumtorquecanonlybedevelopedwhentongisinlowgear.Ensuretongisinlowgear.
MCCOY DRILLING & COMPLETIONS GUARANTEES CALIBRATION OF A LOAD CELL/TORQUE
GAUGE ASSEMBLY FOR A PERIOD OF ONE YEAR. MCCOY DRILLING & COMPLETIONS SUGGESTS
THAT THE LOAD CELL/TORQUE GAUGE ASSEMBLY BE RETURNED TO THE FACTORY FOR
RE-CALIBRATION ON A YEARLY BASIS.