Nissan 90 ~93 free download

File name ac compressor servicing.pdf

A/C COMPRESSOR SERVICING 1993 Nissan Sentra 1993 AIR CONDITIONING & HEAT Compressor Servicing READ THIS FIRST NOTE: The purpose of this article is to provide GENERAL servicing overview. For more specific information, refer to the AUTO A/C-HEAT SYSTEM, MANUAL A/C-HEAT SYSTEM, or HEATER SYSTEM articles in this section. Due to variety of clutch and shaft seal configurations, obtain appropriate A/C compressor service tools for compressor being serviced. NOTE: ATSUGI ROTARY VANE CLUTCH COIL R & I Removal When replacing compressor clutch, be careful not to scratch shaft or bend pulley. When removing center bolt, hold clutch disc with Clutch Holder (KV99231010). Using Hub Puller (KV998VR001), remove clutch disc. When removing pulley, remove lock nut with Hub Socket (KV99235160). Installation 1) Tighten center bolt to 81-104 INCH lbs. (9.1-11.8 N.m). Tighten lock nut to 21-29 ft. lbs. (29-39 N.m). Using feeler gauge, ensure clearance between clutch disc and pulley is .012-.024" (.30-.60 mm). 2) If clearance is not correct, replace adjustment shim(s). See Fig. 1. Break-in clutch by engaging and disengaging clutch about 30 times. Fig. 1: Exploded View Of Compressor (Atsugi Rotary Vane) Courtesy of Nissan Motor Co., U.S.A. BOSCH 6-CYLINDER CLUTCH COIL R & I Remover circlip rear of bearing Removal 1) Hold clutch plate and remove shaft nut. Using Clutch Plate (64 5 00), remove clutch plate. Using snap ring pliers, remove and remove pulley assembly. 2) If pulley bearing is being replaced, remove circlip at pulley. Press bearing and spacer from pulley. Press in new with spacer and replace circlip. Installation 1) Clean all surfaces. Install pulley assembly on compressor and install circlip. Ensure clutch plate shim is in place on shaft. Install clutch plate and nut. Tighten nut to 13-15 ft. lbs. (18-20 N. m). 2) Using a feeler gauge, check clutch plate-to-pulley clearance. Clearance should be .028-.051" (.7-1.3 mm). If clearance is not correct, remove clutch plate and replace clutch plate shim. See Fig. 2. BOSCH 6-CYLINDER SHAFT SEAL R & I Removal Remove clutch plate. Remove shaft key and circlip. Using Seal Seat Remover/Installer (64 5 030), remove seal seat. Using Seal Remover/Installer (64 5 040), turn seal slightly clockwise to disengage tangs and pull out shaft seal. Remove "O" ring seal. Installation 1) Coat new "O" ring seal with refrigerant oil and install. Coat new shaft seal with refrigerant oil and install seal on Seal Remover/Installer(64 5 040). Ensure shaft seal and shaft machine surfaces align. Insert shaft seal and turn slightly counterclockwise to secure on shaft. 2) Using sleeve from Seal Seat Remover/Installer (64 5 030), push seal seat into compressor and install circlip. Install shaft key and clutch plate. Check compressor oil level before charging system. Fig. 2: Exploded View Of Compressor Clutch (Bosch 6-Cylinder) Courtesy of BMW of North America, Inc. CALSONIC V5 & V6 CLUTCH COIL R & I NOTE: Calsonic V6 compressor servicin