PRECOAT BOLTS (Bolts with seal lock agent coating on threads) 1. Do not use the precoat bolt as itisineither of the following cases: (a) After it is removed. (b) When the precoat bolt is moved Cloos- ened or tightened) by tightness check, etc. . For torque check, use the lower limit Note : of the ~~l~~ allowable tightening torque range. If the bolt moves, retighten it Precoat accordicg to the steps below. 2. Method for reuse of precoat bolts (I) Wash (2) Perfectly dry the washed parts by air threaded hole must be washed even for blowing. replacement of the bolt.) (3) Coat the specified seal lock agent to the threaded portion of the bolt. ,the bolt and threaded hole.
(The HIGH PRESSURE HOSE FITTING TIGHTENING TORQUE 1. When connecting a high pressure hose, wipe the hose fitting and mating nipple contact surfaces with clean cloth to remove foreign matters and dirt. Also check no dent or other damage on the contact surfaces before installation. 2. When connecting a 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 Standard tightening torque kg-m (ft-lb ) Hose inside d iarneter (mrn) Standard Tightening range - 711 6 20'UNF - 9/16 18UNF - 314 16UNF - 7/8 14UNF - 11/16 12UNF 15/16 - 12UNF 2.5 ( 18.1) 5.0 ( 36.2) 6.0 ( 43.4) 6.0 ( 43.4) 12.0 ( 86.8) 14.0 (101.2) - - 2.4 - 2.6 (17.4 - 18.8) 4.8 - 5.3 (34.7 38.3) - 5.7 - 6.3 (41.2- 45.5) 5.7 6.3 (41.2 45.5) - 11.4-- 12.6 (82.4 91.1) 13.3 14.7 (96.2 -- 106.3) 6 9 12 12 19 25 PF1/4 P F3/8 PF112 P F3/4 PF1 5.0 ( 36.2) 5.0 ( 36.2) 6.0 ( 43.4) 12.0 ( 86.8) 14.0 (101.2) - 4.8 - 5.3 (34.7 --- 38.3) 4.8 5.3 (34.7 - 38.3) 5.7 -- 6.3 (41.2 45.5) - 11.4-12.6 (82.4- 91.1) 13.3 -- 14.7 (96.2 106.3) 9 9 12 19 25