0-17 PRECOATED BOLTS 1. Do not replace or restore a precoated bolt as it is in the following cases: (1) After it has been removed. (2) When it has been moved by tightness check, etc. (loosened or tightened) NOTE: For torque check, tighten the bolt at the lower limit of the allowable tightening torque range; if the bolt moves, retighten it according to the steps below. Seal lock agent 2. How to reuse precoated bolts (1) Wash the bolt and threaded hole. (The threaded hole must be washed even when replacing the bolt with a new one) (2) Completely dry the washed parts by blowing with air. (3) Apply a specified seal lock agent to the threaded portion of the bolt.
HIGH PRESSURE HOSE FITTING TIGHTENING TORQUE 1. When connecting a high pressure hose, wipe the hose fitting and corresponding nipple contact surfaces with a clean cloth to remove foreign matter and dirt. Also check that there are no dents or other damage on the contact surfaces before installation. 2. When connecting the high pressure hose, hold the hose to align the fitting with the nipple and tighten the fitting. 3. The maximum tightening torque must not exceed twice the standard tightening torque.
Nominal diameter of screw Tightening torque standard N·m (kgf·cm) [ft·lbf] Inside diameter of hose mm (in) Standard Tightening range 7/16-20UNF 9/16-18UNF 3/4-16UNF 7/8-14UNF 7/8-14UNF 1•1/16-12UNF 1•5/16-12UNF 25 (50) [18.1] 49 (500) [36.2] 59 (600) [43.4] 59 (600) [43.4] 78 (800) [57.9] 118 (1200) [86.8] 137 (1400) [101.3] 24 to 26 (240 to 270) [17.4 to 19.5] 47 to 52 (480 to 530) [34.7 to 38.3] 56 to 62 (570 to 630) [41.2 to 45.6] 56 to 62 (570 to 630) [41.2 to 45.6] 74 to 82 (740 to 840) [53.5 to 60.8] 112 to 123 (1140 to 1250) [82.5 to 90.4] 130 to 144 (1330 to 1470) [96.2 to 106.4] 6 (0.24) 9 (0.35) 12 (0.47) 12 (0.47) 15 (0.59) 19 (0.75) 25 (0.98) PF1/4 PF3/8 PF1/2 PF3/4 PF1 25 (250) [18.1] 49 (500) [36.2] 59 (600) [43.4] 118 (1200) [86.8] 137 (1400) [101.3] 24 to 26 (240 to 270) [17.4 to 19.5] 47 to 52 (480 to 530) [34.7 to 38.3] 56 to 62 (570 to 630) [41.2 to 45.6] 112 to 123 (1140 to 1250) [82.5 to 90.4] 130 to 144 (1330 to 1470) [96.2 to 106.4] 6 (0.24) 9 (0.35) 12 (0.47) 19 (0.75) 25 (0.98)