Tapered Pipe Thread Fittings
Torsi didasarkan pada diameter ulir. Nilai torsi sama untuk ulir kasar dan ulir halus.
Catatan: Tabel berikut berisi nilai torsi standar yang direkomendasikan untuk fitting ulir pipa tirus untuk digunakan di semua peralatan Caterpillar dan engine Mitsubishi. Gunakan Tabel 1 hanya sebagai rekomendasi umum. Nilai aktual mungkin berbeda karena variasi dalam material konektor. Nilai aktual mungkin berbeda karena variasi dalam karakteristik ulir.
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| Fitting Ulir Pipa Tirus | ||
|---|---|---|
| Diameter Ulir Pipa (Inci) | Torsi Standar | |
| Putaran Perakitan setelah Dikencangkan dengan Tangan | Torsi | |
| 1/16 | 2 | 10 ± 2 N·m (89 ± 18 lb in) |
| 1/8 | 2 | 17 ± 3 N·m (150 ± 27 lb in) |
| 1/4 | 2 | 25 ± 4 N·m (221 ± 35 lb in) |
| 3/8 | 2 | 40 ± 6 N·m (30 ± 4 lb ft) |
| 1/2 | 2 | 55 ± 8 N·m (41 ± 6 lb ft) |
| 3/4 | 2 | 70 ± 11 N·m (52 ± 8 lb ft) |
| 1 | 1 1/2 | 100 ± 15 N·m (74 ± 11 lb ft) |
| 1 1/4 | 1 1/2 | 110 ± 17 N·m (81 ± 13 lb ft) |
| 1 1/2 | 1 1/2 | 120 ± 18 N·m (89 ± 13 lb ft) |
| 2 | 1 1/2 | 160 ± 24 N·m (118 ± 18 lb ft) |
Catatan: Gunakan 50 persen nilai torsi dari Tabel 1 saat fitting, sumbat, atau material port tidak mengandung besi.
Caterpillar Information System:
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Torque Specifications Flare Fittings
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3406C Engines for Caterpillar Built Machines Connecting Rod Bearing Journal
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3406E Truck Engine Connecting Rod
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3406E Truck Engine Housing (Front)
3612 and 3616 Engines Housing (Front)
3608 Engine Housing (Rear)
3612 and 3616 Engines Crankshaft
3406E Truck Engine Exhaust Manifold Shield
3406E Truck Engine Accessory Drive (Air Compressor)
3408E and 3412E Engines for Caterpillar Built Machines Crankcase Breather