FATC 56 17. PREACUTIONS Keep suction discharge hose assembly and liquid line capped until right before assembly of joint. Ensure that protective sleeves are in proper location where specified. Do:- Lubricate all pre-installed o-rings with specified refrigerant specified oil (PVE:- FVC56EA/FVC68D) prior to assembly of joints. Pre-lubricated, pre installed o-rings do not require lubrication prior to installation unless the oil has absorbed into the o-ring and the surface is dry. Seat O-ring in its female cavity prior to hand starting and torqueing joint nuts. Seat male end form with O-ring in its female cavity prior to torqueing the mini block-fitting joint. Use two wrenches for making each refrigerant joint connection - a calibrated torque wrench on the nut and a backup wrench on the mating nut or a block fitting wrench on the block. Clip or secure hoses and lines as specified. Be sure caps are tight on access valves. To insure tightness, screw caps down until cap seal contacts valve housing and then give it ¼ to ½ turn more. Assemble dual O-ring fitting joints as follows: a. Oil bore with a specified oiling tool using PVE:-FVC56EA/FVC68D Oil. b. Do not oil O-rings. c. Align end forms and then push together completely. d. Tighten joint to specified torque using a backup wrench. Rotate stock on a first-in first-out basis. Finger start all mounting bolts that thread into compressor or brackets. Also, finger start the bolt securing the block fitting on the suction discharge hose assembly to the compressor. DO: Use correct refrigerant O-rings in the vehicle refrigerant system. (Refer to assembly instructions for part numbers). Check connections with bends, kinks, or obstructions in lines. Use bolt or nut to “walk” manifold block or mini block into it’s mating part. Proper technique is with O-ring in seat, push blocks together trapping seal washer before running up and tightening the fastener. Do not allow hoses and lines to directly contact sheet metal or touch hot components. Tightens the joint to required torque. Lubricate seal washers prior to attaching refrigerant lines to components.
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