Description
Electric trains on Ho Chi Minh City’s first metro line draw power from an overhead contact line. That wire hangs from droppers, clamps and cantilever arms, and each fitting has a small bolt with a set torque. Crews check them at night, in short track possessions, often from a tower wagon. The Snap-on TE12FLA Torqometer helps them hit those values, because a lamp flashes at the target.
Contact line fittings for the Snap-on TE12FLA Torqometer
- Dropper clamp bolts that hang the contact wire from the messenger.
- Cantilever arm and register clamp bolts.
- Feeder and jumper clamp bolts, where the design gives a value.
- Bracket screws on section insulators and line signs.
The line designer and fitting maker set each torque, often in N·m. So convert first, then check that the value sits on the TE12FLA dial.
Catalog row for the TE12FLA
| Item | TE12FLA (CAT1500i p.333) |
|---|---|
| Square drive | 3/8 in |
| Range | 12 ft-lb |
| Increments | 1/2 ft-lb |
| Length | 9-29/32 in |
| Width / head depth | 2-11/16 in / 1-1/4 in |
| Storage case | PB9 |
Snap-on prints this row in the US Reading/Standard 2% Accuracy table of catalog CAT1500i. The same row also lists a basic TE12FA and a follow-up TE12FFUA. This listing is the plain TE12FLA, and its title names no certificate. However, that catalog page says certificate of calibration models add a C suffix.
Night work and a flashing lamp
Possession work happens under headlamps, often high above the track. Thus reading fine scale marks at arm’s length is slow and risky. Here the Signal design helps, since its built-in light flashes at the targeted torque. So the fitter stops on the flash, then checks the TE12FLA needle before moving to the next clamp.
Range and units for the TE12FLA
Lost in HCM files this wrench under US Reading/Standard 2% Accuracy. Under Snap-on’s definition, readings hold within 2% from 20% of the scale through full load. On the TE12FLA, the band therefore starts at 2.4 ft-lb. In metric terms, 12 ft-lb is about 16 N·m, and it equals 144 in-lb.
Keeping the Snap-on TE12FLA Torqometer ready
Test the lamp before each shift, since a dead light defeats the point of a signal model. Also tether the wrench to your belt or the basket when you work at height. Snap-on rates its Torqometer dial wrenches for 0 to 100 °F, so keep it in its PB9 case away from rain. Finally, put the TE12FLA on an outside lab’s recalibration schedule.
Request the TE12FLA from Lost in HCM
Metro operators, rail electrification contractors and overhead line crews can source the Snap-on TE12FLA Torqometer from Lost in HCM, the SMK Vietnam partner. The catalog adds that a trailing C on the stock number orders the certificate of calibration version. For a TE12FLA price, request a quote from Lost in HCM. Browse our torque wrenches, see snapon.com, or contact SMK Vietnam.
Contact line crew FAQ
Does the TE12FLA read N·m?
No. It reads ft-lb only, so divide an N·m value by about 1.356 first.
Is there a two-needle version of this size?
Yes. The catalog row lists the TE12FFUA follow-up model at the same range.
Does it replace the fitting maker’s tools?
No. Some clamps also need special gauges or wire tools. The TE12FLA only sets bolt torque.
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