Tài liệu xe ô tô hyundai excel toàn tập hyundai excel
DRIVE SHAFT AND FRONT AXLE Return To Main Table of Contents GENERAL DRIVE SHAFT FRONT AXLE 14 GENERAL GENERAL SPECIFICATIONS Drive shaft Joint type Outer B.J (Birfield joint) Inner D.O.J (Double offset joint) Length (Joint to Joint) Right 357 mm (14.06 in.) Left 673 mm (26.50 in.) Wheel bearing Type Dimension O.D x I.D Taper roller bearing 65.088 x 38.100 mm (2.56 x 1.5 in.) SERVICE STANDARD Setting of D.O.J boot length TIGHTENING TORQUE 75 ± mm (3.0 ± 0.04 in.) Ib.ft Nm kg.cm Drive shaft nut 196-255 2,000-2,600 145-188 Knuckle to strut 74-88 750-900 54-65 Lower arm to ball joint 93-118 950-1,200 69-87 Lower arm to strut bar 93-118 950-1,200 69-87 15-33 150-340 11-25 Knuckle to tie rod LUBRICANTS Recommended lubricant Quantity B.J Boot grease NTN joint grease or BD-K2 90-120 gr (3.2-4.2 oz.) D.O.J Boot grease NTN joint grease or BD-K2 60-90 gr (2.1-3.2 oz.) Outer surface of wheel bearing outer race Multipurpose grease SAE J310a, NLGI grade #2 EP As required Wheel bearing and knuckle inside surface Oil seal lip 49-2 As required As required GENERAL SPECIAL TOOLS 49-3 GENERAL 49-4 GENERAL TROUBLESHOOTING 49-5 GENERAL Wheel bearing troubleshooting Trouble Symptom Probable cause Pitting Pitting occurs because of uneven rotation of race and bearing surfaces Excessive bearing preload Excessive load Flaking The surface peels because of uneven rotation of the race and bearing surfaces End of bearing life Improper bearing assembly Cracking Chipping or cracking of cage or roller edges Impact when bearing was installed (such as being hit with a hammer) Flat spotting When large load is applied, race and roller contact surfaces compress, forming indentations Excessive bearing preload Excessive load Vibration when bearings are not used, such as during shipment on freight cars, transport trucks, etc Nicks Instead of rolling along race surface, rollers slide, thus damaging surface Insufficient grease Excessive bearing preload Excessive load Faulty oil seal Smearing Damage or wear caused by minute particles adhering to surfaces results in rough movement and such high temperatures that part of surface melt Excessive vibration of loads on bearings Use of grease other than that specified Insufficient grease Rust, corrosion Appears on various areas of the bearing Use of grease other than that specified Faulty oil seal Presence of water or moisture Wear Wear of surface areas caused by friction Insufficient grease Foreign matter Rust or corrosion due to moisture Use of grease other than that specified Faulty oil seal Discoloration Grease discoloration results from grease deterioration which causes particles of pigment contained in grease to adhere to surfaces Heat discoloration will appear as a deep brown on purple Use of grease other than that specified Faulty oil seal Excessive bearing preload Excessive load 49-6 DRIVE SHAFT DRIVE SHAFT COMPONENTS TORQUE: Nm (kg.cm, lb.ft) DRIVE SHAFT REPAIR KITS KIT NAME ILLUSTRATION CONTENTS Double offset joint kit o Clip (Retainer ring) o D.O.J assy o Circlip o D.O.J boot o Snap ring o D.O.J boot band o Boot band o Grease Double offset joint boot kit o Clip (Retainer ring) o Circlip o D.O.J boot o Snap ring o D.O.J boot band o Boot band o Grease Birfield joint and shaft kit o Clip (Retainer ring) o Circlip o Snap ring o D.O.J boot band o Boot bands o Damper band o B.J boot band o B.J boot o B.J assy o Dust cover o Grease Birfield joint boot kit o Clip (Retainer ring) o Circlip o Snap ring o D.O.J boot band o Boot bands o Damper band o B.J boot band o B.J boot o Grease Damper kit o Clip (Retainer ring) o Circlip o Snap ring o D.O.J boot band o Boot band o Dynamic damper o Damper band o Grease 49-8 DRIVE SHAFT REMOVAL Remove the wheel ornaments, and loosen the drive shaft nut Lift up the vehicle and remove the tires Remove the under cover Remove the lower arm ball joint and strut bar from the lower arm CAUTION Place the lower arm ball joint on the lower arm to prevent damage to the ball joint dust boot Drain the transmission fluid Insert the pry bar between transmission case and joint case (D.O.J), and pry the drive shaft from the transmission case CAUTIONS: (a) Be sure to apply pry bar to the rib of transmission case (b) Do not insert pry bar too deep to cause damage to the oil seal [max depth: mm (0.28 in.) Pull out the drive shaft from the transmission case CAUTIONS (a) Put a waste cloth in the hole of the transmission case to keep out dust (b) Hold the drive shaft in the proper position (c) Replace retainer ring each time the drive shaft is removed from the transmission case Using Special Tool, Axle Shaft Puller (09526-11001), force the drive shaft out of the hub CAUTION When the drive shaft is forced out, prevent the spacer from falling out of place 49-9 DRIVE SHAFT INSPECTION Check the drive shaft boot for damage and deterioration Check the ball joints for wear and operating condition Check the spline part for wear and damage DISASSEMBLY CAUTIONS (a) Do not disassemble the B.J assembly (b) The drive shaft joint uses special grease Do not add another type of grease (c) The boot band should be replaced with a new one Remove the D.O.J boot bands and pull the D.O.J boot from the D.O.J outer race CAUTION Use care to prevent damage to the boot Remove the circlip with a flat-blade screwdriver Pull out the drive shaft from the D.O.J outer race Remove the snap ring and take out the inner race, cage and balls as an assembly 49-10 DRIVE SHAFT Clean the inner race, cage and balls without disassembly Removethe B.J boot bands and pull out the D.O.J boot and B.J boot CAUTION If the boot is to be reused, wind a tape around the drive shaft splines to protect the boot Inspection after Disassembly Rusted or damaged D.O.J outer race, inner race, cage and balls Worn splines Water, foreign matter or rust in B.J boot CAUTION When the B.J assembly is to be reused, not wide away grease but check for foreign substances in the grease If necessary, clean the B.J assembly and replace grease REASSEMBLY Wind a tape around the drive shaft splines (D.O.J side) to prevent damage to the boots Apply grease to the drive shaft and install the boots Recommended grease NTN joint grease or BD-K2 To install the dynamic damper, keep the B.J and shaft in a straight line and secure the dynamic damper using dynamic damper band as shown Standard value (A): 383.5 mm (15.0 in.) DRIVE SHAFT Apply the specified grease to the inner race and cage Install the inner race and cage displaced half a pitch CAUTION Use the grease included in the kit Apply the specified grease to the cage and fit the balls into the cage With its chamfered side faced as shown, install the inner race onto the drive shaft, and install the snap ring Apply 40 to 50 gr (1.4 to 1.8 oz.) of the specified grease to the outer race and install the outer race onto the drive shaft Apply 20 to 40 gr (0.7 to 1.4 oz.) of the specified grease or equivalent to the outer race and install the clip Quantity gr (oz.) Total amount of grease for D.O.J 60-90 (2.1-3.2) Add to the B.J as much specified grease or equivalent as was wiped away at the time of inspection 10 Install the boots 11 Tighten the B.J boot bands 12 To control the air in the D.O.J boot, keep the specified distance between the boot bands when they are tightened 49-12 DRIVE SHAFT INSTALLATION Tighten the following parts to the specified torque Torque Nm (kg.cm, Ib.ft) Drive shaft nut Lower arm to ball joint Lower arm to strut bar 196-255 (2,000-2,600, 145-188) 93-118 (950-1,200, 69-87) 93-118 (950-1,200, 69-87) Install new retainer ring every time the drive shaft is removed from the transmission Install the washer under the drive shaft nut as shown in illustration 49-13 FRONT AXLE FRONT AXLE COMPONENTS TORQUE: Nm (kg.cm, Ib.ft) REMOVAL Remove the wheel ornaments Remove the drive shaft nut Jack up the vehicle and support it with stands Remove the wheel and tire Remove the front brake assembly from the knuckle and suspend it with a wire Disconnect the lower arm ball joint from the knuckle using special tool Disconnect the tie rod end ball joint from the knuckle using Special Tool 49-14 FRONT AXLE Disconnect the drive shaft from the hub using the special tool Remove the hub and knuckle as an assembly from the strut INSPECTION Check the hub for cracks and spline for wear Check the oil seal for cracking or damage Check the brake disc for scoring and damage Check the steering knuckle for cracks Check for defective bearing (Refer to “Wheel bearing troubleshooting”.) BEARING REPLACEMENT Set the special tools as illustrated Remove the hub from the knuckle by turning the special tool CAUTIONS (a) Be sure to use the special tool (b) If the hub and knuckle are disassembled by striking with a hammer the bearing will be damaged Secure the knuckle in a vise Remove the brake disc from the hub FRONT AXLE Remove the outer bearing inner race from the hub using Special Tools Remove the oil seal and inner bearing inner race from the knuckle Drive out the bearing outer races from the knuckle using the special tool CAUTION If either the outer or inner race needs replacement, they must be replaced as a set Apply the specified multipurpose grease to the outside surface of the bearing outer race Recommended grease Multipurpose grease SAE J310a, NLGI grade #2 EP Install the bearing outer race into the knuckle with special tools 10 Install the disc to the hub and torque to the specification Tightening torque 49-59 Nm (500-600 kg.cm, 36-43 ft.lbs.) 11 Apply the specified multipurpose grease to the bearings and inside surface of the hub 49-16 FRONT AXLE 12 Place the outside bearing inner race into the knuckle 13 Drive the oil seal (hub side) into the knuckle with the special tool 14 Apply the specified maltipurpose grease to the lip of the oil seal and to the surfaces of the oil seal which contact the hub Recommended grease Multipurpose grease SAE J310a, NLGI grade #2 EP 15 Place the inner bearing into the knuckle 16 Tighten the hub to the knuckle to 230 Nm (2,350 kg.cm, 167 Ib.ft) with the special tool 17 Rotate the hub to seat the bearing 18 Measure the hub bearing starting torque Hub bearing starting torque [Limit] 127.4 Ncm (13 kg.cm, 11 Ib.in) or less 19 If the starting torque is Ncm (0 in.lbs.), measure the hub bearing axial play 20 If the hub axial play exceeds the limit while the nut is tightened to 230 Nm (2,350 kg.cm, 167 Ib.ft), the bearing, hub and knuckle have probably not been installed correctly Repeat the disassembly and assembly procedure Hub bearing axial play [Limit] 0.11 mm (0.0043 in.) FRONT AXLE 21 Remove the special tool 22 Apply the specified multipurpose grease to the bearing and to the inside of the knuckle Recommended grease Multipurpose grease SAE J310a, NLGI grade #2 EP 23 Drive the oil seal (drive shaft side) into the knuckle until it contacts the bearing outer race using special tools 24 Apply the specified multipurpose grease to the lip of the oil seal 25 Install the parts by reference to the torque specification INSTALLATION Lower the vehicle to the ground and tighten the knuckle to the lower arm ball joint connecting bolt Install parts by reference to torque specification 49-18 ... shaft nut 19 6-2 55 2,00 0-2 ,600 14 5-1 88 Knuckle to strut 7 4-8 8 75 0-9 00 5 4-6 5 Lower arm to ball joint 9 3-1 18 95 0-1 ,200 6 9-8 7 Lower arm to strut bar 9 3-1 18 95 0-1 ,200 6 9-8 7 1 5-3 3 15 0-3 40 1 1-2 5 Knuckle... Lower arm to ball joint Lower arm to strut bar 19 6-2 55 (2,00 0-2 ,600, 14 5-1 88) 9 3-1 18 (95 0-1 ,200, 6 9-8 7) 9 3-1 18 (95 0-1 ,200, 6 9-8 7) Install new retainer ring every time the drive shaft is removed... lubricant Quantity B.J Boot grease NTN joint grease or BD-K2 9 0-1 20 gr (3. 2-4 .2 oz.) D.O.J Boot grease NTN joint grease or BD-K2 6 0-9 0 gr (2. 1-3 .2 oz.) Outer surface of wheel bearing outer race Multipurpose