VALMETAL H Series Operator's Manual And Parts Book
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Contents
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7.3 HYDRAULIC FITTING TORQUETIGHTENING FLARE TYPE TUBE FITTING*1. Check flare and flare seat for defects thatmight cause leakage.2. Align tube with fitting before tightening.3. Lubricate connection and hand tightenswivel nut until snug.4. To prevent twisting the tube(s), use twowrenches. Place one wrench on theconnector body and with the secondtighten the swivel nut to the torque shown.* The torque values shown are based onlubricated connections as in reassembly.RecommendedNut Size Turns to TightenTube Across (After FingerSize Flats Torque Value* Tightening)OD(in.) (in.) (N.m) (lb-ft) (Flats) (Turns)3/16 7/16 8 6 1 1/61/4 9/16 12 9 1 1/65/16 5/8 16 12 1 1/63/8 11/16 24 18 1 1/61/2 7/8 46 34 1 1/65/8 1 62 46 1 1/63/4 1-1/4 102 75 3/4 1/87/8 1-3/8 122 90 3/4 1/8SPECIFICATIONS47 |
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