PR ECOAT BOLTS (Bolts with seal lock agent coating on threads) 1. Do not use the precoat bolt as it is in either of the following cases: (a) After it is removed. (b) When the precoat bolt is moved (loos - ened or tightened) by tightness check, etc. Note : For torque check, use the lower limit of the Bolts allowable tightening torque range. If the bolt moves, retighten it according to the steps below. 2. Method for reuse of precoat bolts (1) Wash the bolt and threaded hole. (The (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.
HIGH PRESSURE HOSE FllTlNG TIGHTENING TORQUE 1. When connecting a high pressure hose, wipe the hose fitting and mating nipple contact sufaces 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-cm (ft-lb ) Hose inside diameter (mm) Standard Tightening range 5 - 20 UNF % - 18 UNF - 16 UNF 5 - 14 UNF - 12 UNF I & - 12 UNF 2.5 ( 18.1) 5.0 ( 36.2) 6.0 ( 43.4) 6.0 ( 43.4) 12.0 ( 86.6) 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 PF3/8 PF1/2 PF314 PFI 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