Rear Suspension, T-Ride
Contents
1. 30 Nm 192 22 ft lb 500 75 Nm 370 55 ft lb 144 31 Nm 107 23 ft lb 260 30 Nm 192 22 ft lb Service Procedures 7271 03 02 01 Rubber Spring Replacement Each Group 72 BAI 22 7X E S Y E A 0X VAL z 7 G A A N 1 Mia 0 W6001333 e tas Be Raising the frame Please read Guidelines for Working on the Volvo T Ride Suspension page 19 before beginning this procedure 1 Park the vehicle on a level surface and chock the front wheels 2 Remove the four Allen fasteners from the spring plate 3 Using an air lift raise the frame to relieve pressure from the rubber spring and remove the spring plate 35 Group 72 Service Procedures 4 Remove the four fasteners that mount the rubber spring to the axle mounted bracket and remove the rubber spring W6001330 5 Install the replacement rubber spring onto the axle mounted bracket and torque the fasteners to 140 25 Nm 103 18 ft lb 140 25 Nm 103 18 ft lb 6 Lower the frame slowly while sliding the spring plate back into position 7 Once the spring plate is in position install the Allen head fasteners and torque them to 85 15 Nm 63 11 ft lb 85 15 Nm 63 11 ft lb 8 Lower the frame completely and remove the wheel chocks 9 Torque top spring end nuts to 144 31 Nm 107 23 ft lb Torque bottom spring end nuts to 260 30 Nm 192 22 ft lb 144 31 Nm 107 23 ft lb 2602. 30 Nm 192 22 ft lb 36 Group 72 Service Procedures 10 Torque bolts for rubber spring to axle pads as follows e VOLVO 115 25 Nm 85 18 ft lb e Rockwell Eaton 73 17 Nm 54 13 ft lb 115 25 Nm 85 18 ft lb 73 17 Nm 54 x 13 ft lb 37 Group 72 Service Procedures 7229 03 02 01 Rear Spring Retaining Bolt Replacement Please read Guidelines for Working on the Volvo T Ride Suspension page 19 before beginning this procedure 1 Park the vehicle on a level surface and chock the front wheels 2 Remove the spring U bolt nuts and then the spring saddle cap W6001312 Removing the U bolt nuts 3 Remove the spring U bolts W6001314 Removing the U bolts 4 To facilitate the U bolt removal rotate the cradle to the left and right and slide the U bolt out A CAUTION Do not reuse U bolts 5 To reassemble with new U bolts reverse procedures 1 through 3 38 Group 72 Service Procedures 6 Torque U bolt nuts to 500 75 Nm 370 55 ft lb Note It there are several upper leaf springs it is best to remove them one at a time 500 75 Nm 370 55 ft lb 39 Group 72 Service Procedures 6559 05 02 01 Tandem Alignment Please read Guidelines for Working on the Volvo T Ride Suspension page 19 before beginning this procedure To align the tandem use the J36795 Tandem Axle Calipers Tandem adjustments are made with washer shi
3. cap and torque the bolts to 20 5 Nm 15 4 ft lb 20 5 Nm 15 4 ft lb 15 Reverse the procedures steps 1 5 for installing the leaf spring assembly Torque U bolt nuts to 500 75 Nm 369 55 ft lb Torque the spring plate bolts to 85 15 Nm 63 11 ft lb A CAUTION Do not reuse U bolts 500 75 Nm 369 55 ft lb 85 15 Nm 63 11 ft lb 16 Remove the jack stands and wheel chocks Group 72 Service Procedures 6559 03 04 01 Grease Seals Replacement Cradle Removed Please read Guidelines for Working on the Volvo T Ride Suspension page 19 before beginning this procedure Cradle Removed 1 Remove the old grease seals from the cradle 2 Clean out the seal grooves and lightly smear clean grease over grooves 3 Install new grease seals The larger of the two grease seals fits on the inside groove and the smaller one fits on the outer groove The grease seal lips face each other when in position 4 Lightly apply grease on both seals 5 Remove the wear ring from the cavity in the saddle bracket and install a new wear ring This wear ring can be removed using a flat blade screwdriver 6 Reinstall the cradle back onto the trunnion tube 45 Group 72 Service Procedures 6559 10 02 01 Cradle Bearing Lubrication 46 Cradle bearing lubrication points W7000264 Please read Guidelines for Working on the Volvo T Ride Suspension page 19 before beg
4. eese 23 Bogie Anchorage Assembly Replacement sess 25 V Torque Rod Anchorage Replacement sess 28 Spring Assembly Rear Leaf Removal and Installation 30 Rear Spring Leaf Replacement sssssssssssseenee 33 Rubber Spring Replacement Each ssesssssuuss 35 Rear Spring Retaining Bolt Replacement sss 38 Tandem AIMENT pe 40 Cradle Replacement soci inician 41 Grease Seals Replacement sn 45 Cradle Bearing Lubrication access 46 Permanent Fastener Removal sse 47 Group 72 General General Rear Suspension W6001356 Fig 1 T Ride Tandem Suspension The Volvo T Ride tandem suspension is designed for use in both on and off highway applications It offers maximum articulation for maximum traction The following information covers specifications operations torque values lubrication alignments and service procedures for repair and maintenance of the Volvo T Ride Tandem Suspension Group 72 Specifications Specifications Suspension Applications VHD Capacity Ib 48 000 ECN 58 000 65 000 70 000 CTEV87 CTEV87 RT2610HV Volvo Axle RT2610HV RT2610HV RT3210HV RT3210HV RT3210HV Meritor Rockwell Axle Not Available Not Available Not Available Not Available Not Available Dana Eaton Axle Not Available Not Available Not Available Not Available Not Avai
5. performing this procedure If you are not properly trained and certified in this procedure ask your supervisor for training before you perform it To ensure personal safety and to help avoid accidental damage to suspension components always follow these guidelines any time work is performed on the suspension 1 Always park the vehicle on a level surface chock the front wheels and release the parking brakes 2 When lifting the chassis to perform any procedure always support the chassis with adequate jack stands before beginning work on the suspension 3 For easier removal or installation of T Ride Suspension components it may be necessary to remove the fifth wheel to adequately perform service procedures Refer to the appropriate service literature for removing the fifth wheel 4 To ensure that the U bolts and Torque Rods holding the rear suspension to the drive axle retain their clamp load observe the following practices Anytime you work on the suspension make sure you loosen both sides of the suspension on an axle at the same time Note It is difficult to realign all parts with opposite sides of the axle restricting motion Whenever the U bolts and Torque Rods are loosened always support the nose of the axle with an adequate jack Whenever the components are loosened or the suspension components attached to the axle are being worked on make sure that the locating features on each component are properl
6. your face at least two feet away from the collar Do not use a cutting torch for removal 47 Group 72 W7001283 1 Collar section 2 Swagged section W7001274 pad W7001276 48 Service Procedures 1 Using a wheel grinder preferred method cut a vertical groove into the swagged section of the HUCKBOLT collar on two or more sides see arrow in figure 1 2 After the collar is opened over the length of the swagged portion on two or more opposing sides the pin may become free If not additional collar material should be pulled away from the swagged section of the collar using vice grips or a chisel 3 Remove the pin after sufficient material is pulled away from the swagged section of the collar Note Any fastener that is removed should be replaced with a fastener of equal or greater strength Note For HUCKBOLT Installation procedures refer to Service Information in Group 711 HUCKBOLT Tool Repair procedure 49 VOLVO Volvo Trucks North America Inc P O Box 26115 Greensboro NC 27402 6115 Volvo Trucks Canada Ltd 5600A Cancross Court Mississauga Ontario L5R 3E9 http www volvotrucks volvo com PV776 TSP142921 1000 06 2003 Volvo Trucks North America Inc 2003
7. Service Manual Trucks Group 655 601 Rear Suspension T Ride VN VHD PV776 TSP142921 VOLVO Foreword The descriptions and service procedures contained in this manual are based on designs and methods studies carried out up to July 2003 The products are under continuous development Vehicles and components produced after the above date may therefore have different specifications and repair methods When this is believed to have a significant bearing on this manual supplementary service bulletins will be issued to cover the changes The new edition of this manual will update the changes In service procedures where the title incorporates an operation number this is a reference to an V S T Volvo Standard Times Service procedures which do not include an operation number in the title are for general information and no reference is made to an V S T The following levels of observations cautions and warnings are used in this Service Documentation Note Indicates a situation handling or circumstance which should be observed Caution Indicates a potentially hazardous situation which if not avoided may result in minor or moderate injury or damage to property Warning Indicates a potentially hazardous situation which if not avoided could result in death serious injury or major damage to property Danger Indicates an imminently hazardous situation which if not avoided will result in death or serious injury Volvo
8. Trucks North America Inc Greensboro NC USA Order number PV776 TSP142921 2003 Volvo Trucks North America Inc Greensboro NC USA All rights reserved No part of this publication may be reproduced stored in retrieval system or transmitted in any forms by any means electronic mechanical photocopying recording or otherwise without the prior written permission of Volvo Trucks North America Inc USA08313 Contents A A O O S 3 Rice enr y e 3 SPOCIHCAUONE RENE E I rl ATE darla 5 Suspension A PONCANOMB aiii b BAD ete mu ree vip E E 5 Tightening ncc D LE 6 Pole Pinion ANOS unse 7 D orainne a eE 7 TOS entries 9 scc MI m 9 A O NT 10 Design and FUNCTION ciar 11 Fear SUSPENSION dador 11 Bogie Bracket Saddle Bracket u 12 Spring Cradle Cradle Assembly acer ci cerner rrt ee eee 12 Miura deem ret 12 Farabelo Spring Leaves ra 13 gitbs cyyo a 13 Vatar TOMS PADS osse OR oo en D e as ipe EU c i e RE 13 Reaction RodiLewer Torque ROQ nennen 13 V Stay Torque Bod Frame Bracket iaa 14 gilles Deere asen 14 Rupber SENNO Pla eI 14 Lower Reaction Rod Bracket and Shock Bracket 14 E Cgil ep 17 Rear Suspension Troubleshooting 17 ke cM s me 17 Service Procedures iii ar ii 19 cs Sure slo ai sn 19 Guidelines for Working on the Volvo T Ride Suspension 19 V Terna nod Isplpeemeglil sisi 21 Torque Radius Rod Lower Replacement
9. and then the leaf spring assembly saddle cap 5 Remove the upper leaf springs using a lift or overhead crane Note If there are several upper leaf springs it is best to remove them one at a time 6 Remove the bolts to the spring plates on both ends of the lower leaf spring 7 Using a lift or overhead crane remove the lower leaf spring and remove the U bolts Note It may be necessary to rotate the cradle back and forth to remove the U bolts 8 Install the U bolts and the lower leaf spring onto the cradle A CAUTION Do not reuse U bolts Note It may be necessary to rotate the cradle back and forth to install the U bolts 9 Once the lower leaf spring is in place install the spring plates at both ends of the leaf spring and torque the bolts to 85 15 Nm 63 11 ft lb 31 Group 72 32 Service Procedures 10 Using a lift or overhead crane install the remaining leaf springs Note Be sure that all leaf springs are properly aligned and that all shims are installed properly Note When replacing Parabolic Spring Leaves the leaves on both sides should be replaced When replacing the leaves also insure that the leaves are marked with the same Camber Settings or 11 Install the saddle cap and U bolt nuts Torque the U bolt nuts to 500 75 Nm Torque all U bolt nuts to 10 Nm before applying the full amount of torque 500 75 Nm 369 55 ft lb 12 Raise the frame and r
10. emove the jack stands then lower the frame and remove the wheel chocks Group 72 Service Procedures 7221 03 02 03 Rear Spring Leaf Replacement W6001333 Removing the spring end nuts W6001312 Removing the U bolt nuts Please read Guidelines for Working on the Volvo T Ride Suspension page 19 before beginning this procedure 1 Park the vehicle on a level surface and chock the front wheels 2 Remove the nuts from the spring ends 3 Raise the frame and support the frame rails with jack stands one at the front and one at the rear of the rear suspension 4 Remove the spring U bolt nuts and then the spring saddle cap 33 Group 72 34 Service Procedures 5 Use an overhead crane or other approved lifting devices to remove the spring assembly 6 Dismantle spring leaf assembly and remove the damaged spring leaf 7 Inspect the shims between the spring leaves and replace them if they are damaged 8 Install the new spring leaf or leaves and reassembly the spring assembly Note When replacing Parabolic Spring Leaves the leaves on both sides should be replaced When replacing the leaves also insure that the leaves are marked with the same Camber Settings or 9 To reinstall the spring assembly reverse procedures 1 through 4 10 Torque U bolt nuts to 500 75 Nm 370 55 ft lb Torque top spring end nuts to 144 31 Nm 107 23 ft lb Torque bottom spring end nuts to 260
11. es 7116 03 02 03 Bogie Anchorage Assembly Replacement Please read Guidelines for Working on the Volvo T Ride Suspension page 19 before beginning this procedure 1 Park the vehicle on a level surface and chock the front wheels Failure to support the nose of the axle may result in the axle falling which can cause serious injury or death to anyone near or under the vehicle Support the nose of the axle or axles being worked on with a bottle jack 3 Please refer to Spring Assembly Rear Leaf Removal and Installation page 30 for removing the Leaf Spring Assembly 4 Please refer to Cradle Replacement page 41 for removing the Cradle Assembly 5 Remove the 2 bolts and nuts that connect the lower torque rods to the saddle bracket Note It may be necessary to loosen the opposite sides of the saddle bracket to enable easier removal or installation as well as proper wheel alignment during installation of the saddle bracket W6001355 25 Group 72 W6001325 Removing the saddle bracket bolts W6001324 26 Service Procedures 6 Remove the saddle bracket bolts at the frame rail Note At the top of the saddle bracket leave 1 bolt and nut attached loosely to each side to prevent it from falling off during removal 7 Remove the saddle bracket bolts at the crossmember Note These bolts are at the bottom side of the saddle bracket 8 Hook a chain to the top two
12. he rubber spring bracket is found on top of the axle housing at the flanged end of the axle shaft It is held in place with U bolts and the lower reaction rod bracket The rubber spring bracket provides a solid mounting surface for the rubber springs which is essential to the alignment of the leaf spring assembly with the rubber spring Rubber Spring Plate The rubber spring plate is used to fasten the lower leaf spring to the rubber springs The rubber spring plate is important because it keeps the leaf springs in alignment with the rubber springs Lower Reaction Rod Bracket and Shock Bracket The reaction rod bracket provides a fixed location for the reaction rod to mount directly to the axle as well as mounting the shock to the axle This allows for proper positioning of those components leading to correct axle pinion angles and alignment 14 Design and Function W6001322 W6001337 W6001342 W6001338 Design and Function Group 72 m W6001328 Bogie Bracket and Cradle Assembly 15 Group 72 14 15 16 17 19 20 21 22 30 21 19 18 8 17 un ral NN NI Design and Function AN WTA Y Ex p Saddle Bracket Cradle Wear Ring Grease Seal Grease Seal Nylon Bushing Outer Thrust Washer Inner Thrust Washer Snap Ring Gasket Cross Section View of Cradle and Saddle Bracket 16 N PA mamam nmn rn 5p w7000091 Hub Cab Retaini
13. holes of the saddle bracket and use a lift or overhead crane to remove the saddle bracket Group 72 W6001326 Service Procedures 9 For installation hook a chain to the top two holes of the saddle bracket and use a lift or overhead crane to raise the saddle bracket into position 10 Install the bolts to the saddle bracket at the crossmember and install the bolts to the saddle bracket at the frame rail and remove the chain Torque the M14 bolts to 200 30 Nm 148 22 ft lb Nm to the frame and the M16 bolts to 320 50 Nm 236 37 ft lb to the frame and crossmember 200 30 Nm 148 22 ft lb 320 50 Nm 236 37 ft lb 11 Install the 2 bolts that connect the lower torque rods to the saddle bracket and torque For correct specifications please refer to Tightening Torques page 6 12 Refer to Cradle Replacement page 41 for service procedures for installation of the Cradle Assembly 13 Refer to Spring Assembly Rear Leaf Removal and Installation page 30 for installation of the Leaf Spring Assembly 14 Check wheel alignment and remove wheel chocks Note For wheel alignment refer to the proper service literature 27 Group 72 Service Procedures 7116 03 02 01 V Torque Rod Anchorage Replacement W7000752 W6001312 Removing the U bolts 28 Please read Guidelines for Working on the Volvo T Ride Suspension page 19 before beginning this procedure 1 Par
14. inning this procedure It is important that lubrication is done as follows so the bearing is filled completely with grease 1 Remove pressure relief valve located at A and install a grease fitting 2 Remove the grease fitting at B 3 Fill with grease through A fitting until grease oozes out of B 4 Install grease fitting at B and fill with grease until it oozes out around the entire seal see arrow 5 Remove grease fitting at A and reinstall the pressure relief valve Group 72 Service Procedures 7113 01 01 01 Permanent Fastener Removal You must read and understand the precautions and guidelines in Service Information Group 70 General Safety Practices before performing this procedure If you are not properly trained and certified in this procedure ask your supervisor for training before you perform it The HUCKBOLT Permanent fasteners are swagged over the grooved pin No amount of twisting or hammering will dislodge or remove the pin from the collar The collar must be cut parallel to the HUCKBOLT pin end of the swagged section This is best accomplished with a small wheel grinder Other options may be to use a drill or chisel to create openings on the collar wall W7001282 Fig 3 Optional collar removal procedures A CAUTION HUCKBOLT Permanent Fasteners are clamped at a very high torque and they may release suddenly Wear proper eye protection and keep
15. k the vehicle on a level surface and chock the front wheels 2 Using an air lift raise the frame to relieve pressure from the suspension and support it with jack stands at the front and rear of the suspension Failure to properly support the nose of the axle may result in the axle falling which can cause serious injury or death to anyone near or under the vehicle Place a bottle jack under the axle flange to prevent the axle from rolling over 4 Remove the 4 U bolt nuts and remove the spring saddle cap 5 With a lift or overhead crane remove the upper leaf springs Group 72 W6001323 Service Procedures 6 Remove the 4 flange nuts that mount the rear V Torque rod to the axle mounted bracket and cut any clippings loose from the V Torque rod 7 Remove the 4 bolts that mount the rear V Torque rod to the upper V Torque rod brackets and lift the rear V Torque rod out 8 Remove the 2 bolts that mount the front V Torque rod to the upper V Torque rod bracket on the side of the vehicle being worked on 9 Remove the bolts that mount the upper V Torque rod bracket to the frame rail and remove 2 bolts to the saddle bracket to assist in the removal of the upper V Torque rod bracket 10 Once all bolts are removed slide the upper V Torque rod bracket out from in between the frame and the crossmember 11 Slide the replacement upper V Torque rod bracket into place and start all bolts Torq
16. lable Load Distribution 50 50 50 50 50 50 50 50 Parabolic Parabolic Parabolic ppringsis Type Multileaf Multileaf Multileaf Multileat Munigar Number of Leaves 3 11 3 9 11 9 11 Group 72 Specifications U bolt nuts sizes will vary do not re use U bolt nuts 369 55 Rubber spring bolts M14 to axle housing Rockwell Eaton Axles 148 22 U bolts to torque rod bracket on axle do not re use U bolt nuts 148 18 Axle stop bolt nuts to frame 1 103 18 Tightening Torques 1 These may be HUCKBOLTS and if so there is no torque value given as HUCKBOLT are unserviceable Group 72 Axle Pinion Angles VN n Specifications Group 72 Tools Tools Special Tools The following special tools can be used when working on the T Ride Tandem Suspension Volvo Tool 999 2337 Pry Bar can be used to remove seals bearings thrust washers and other items Volvo Tool 998 8185 Snap Ring Pliers are used for removing and installing snap rings Note Protective eye wear should be worn when removing snap rings Snap On Tool A173 can be used to remove the inner thrust washer and other items HA eee W6001361 W6001359 W6001360 10 Group 72 Other Tools The following tools can be used to ensure proper inclinations or angles for axles on the Volvo T Ride The Anglemaster is a digital inclinometer available from Dana Spicer Telephone 419 535 4300 The J 38460 A is a digital pr
17. mounted bracket and torque them to 310 30 Nm 229 26 ft lb 310 30 Nm 229 26 ft lb 8 Start the bolts on the frame mounted bracket and torque them to 260 30 Nm 192 22 ft lb 260 30 Nm 192 22 ft lb 9 After starting all fasteners and tightening them to the proper torques clip the electrical and pneumatic harness to the V Torque Rod 10 Remove the bottle jack from underneath the axle flange and remove the wheel chocks Group 72 Service Procedures 6521 03 02 02 Torque Radius Rod Lower Replacement Please read Guidelines for Working on the Volvo T Ride Suspension page 19 before beginning this procedure 1 Park the vehicle on a level surface and chock the front wheels Failure to properly support the nose of the axle may result in the axle falling which can cause serious injury or death to anyone near or under the vehicle Support the nose of the axle or axles being worked on with a bottle jack W7000752 Bottle jack 3 Remove the lower torque rod from between the rear axle mounting bracket and the saddle bracket 23 Group 72 24 W6001355 Service Procedures 4 Reinstall the torque rod back onto the truck and torque the bolts to 200 25 Nm 148 18 ft lb Note It may be necessary to loosen torque rods on both sides of the suspension for easier installation 200 25 Nm 148 18 ft lb Group 72 Service Procedur
18. ms that are fastened to the saddle bracket at the lower torque rod end W6001355 Fig 2 Bogie Bracket and Tandem alignment 1 To remove or install washer shims remove the long through bolts that hold both the front and the rear lower torque rod ends at the saddle bracket 2 After installing or removing shims re torque bolt nuts to 200 25 Nm 148 18 ft lb 200 25 Nm 148 18 ft lb 3 Refer to the correct service literature for alignment procedures 40 Group 72 Service Procedures 6553 03 02 03 Cradle Replacement H rg gt W7000269 W6001312 Removing the U bolts Please read Guidelines for Working on the Volvo T Ride Suspension page 19 before beginning this procedure 1 Park vehicle on a level surface and the chock front wheels 2 Using an air lift raise the frame and support it with jack stands at the front and back of the suspension 3 Once the frame is supported and the suspension is relieved of pressure remove the four U bolt nuts and remove the spring saddle cap 4 Using a lifting device remove the upper leaf springs Note If there are several upper leaf springs it is best to remove them one at a time 41 Group 72 Service Procedures 5 After removing the upper leaf springs remove the spring plate on each end of the lower leaf spring to enable to removal of the lower leaf spring W6001333 6 Remove the lo
19. ng Ring Relief Valve Trunnion Tube Roll Pin Roll Pin Plug Plug Grease Fitting Group 72 Troubleshooting Troubleshooting Rear Suspension Troubleshooting Volvo T Ride Problem Cause Vibration U joint angle incorrect Improper phasing of drivelines Axle inclination incorrect Thrust alignment incorrect Excessive end play on spring cradle Improper wheel run out or balance Mismatched wheels and tires Excessive wheel bearing end play Tracking Improper thrust alignment Total wheel alignment incorrect Lateral alignment of axles incorrect Worn torque rod bushings Defective rubber spring Excessively worn nylon bushings 1 Improper lubrication will cause these components to fail prematurely or excessively Improper maintenance Excessive end play on cradle Excessively worn trunion tube 1 Improper lubrication will cause these components to fail prematurely or excessively Improper maintenance Excessive end play on cradle Overloaded vehicle Worn nylon bushings 1 Refer to Nylon Bushings page 12 17 18 Group 72 Service Procedures Service Procedures Service Procedure Guidelines for Working on the Volvo T Ride Suspension You must read and understand the precautions and guidelines in Service Information Group 60 General Safety Practices Wheel Suspension and Steering before
20. otractor available from Kent Moore Telephone 800 328 6657 The J 38460 25 may be used along with the Kent Moore digital protractor or the Dana Spicer digital inclinometer for checking pinion angles It is available from Kent Moore Telephone 800 328 6657 The J 36795 are tandem axle calipers available from Kent Moore Telephone 800 328 6657 W7000250 Er men E gt W7000708 W0001985 Tools Group 72 Design and Function Design and Function Rear Suspension The VOLVO T Ride Tandem Suspension is designed for use in both on and off highway applications It offers maximum atriculation for traction The parabolic tapered spring leaves are mounted upside down outside the frame rails The ride is further enhanced by rubber cushions bolted to the end of each spring resting on the respective rear axle These cushions absorb shock and vibration The suspension features eight torque rods that help maintain the rear axle alignment Four of the rods are installed on top of the rear axles in an opposite V pattern These V torque rods anchor the rear axles to the frame while distributing and maintaining laterally transmitted forces as well as any starting and braking torques The four lower torque rods also transfer starting and braking torques from the rear axles to the frame W6001331 11 Group 72 Design and F
21. the ground for pulling power Note When replacing Parabolic Spring Leaves the leaves on both sides should be replaced When replacing the leaves also ensure that the leaves are marked with the same Camber Settings or Rubber Springs The rubber springs support the leaf spring assembly and contribute to a flexible and comfortable ride The rubber springs allow for minimum wear on the suspension by absorbing a considerable amount of shock and vibration for the suspension V Stay Torque Rods The V Stay torque rods distribute movement and keep the axles in place They are fastened from the inner frame rails and to the top of the axle housings They distribute and maintain laterally transmitted forces as well as any starting or braking torques The outer joints of the V Stay torque rods are maintenance free Reaction Rod Lower Torque Rod There are four lower torque rods and they are used to distribute starting and braking forces The outer joints are also maintenance free The axle pinion angle can be controlled by the reaction rods Design and Function W6001341 W6001343 W6001334 W6001335 Group 72 V Stay Torque Rod Frame Bracket The V Stay torque rod frame bracket is used to mount the V Stay torque rod to the frame It is marked with top and forward arrows to make for proper installation This bracket supplies a secure anchor for the V Stay torque rod to the frame Rubber Spring Bracket T
22. ue M14 bolts to 200 30 Nm 148 22 ft lb and M16 bolts to 320 50 Nm 236 37 ft lb Note The upper V Torque rod bracket is marked with directional arrows for proper installation 200 30 Nm 148 22 ft lb 320 50 Nm 236 37 ft lb 12 Set the V Torque rod into place and start the 4 bolts and 4 flange nuts Torque the M16 bolts to 320 50 Nm 236 37 ft lb and the flange nuts to 310 50 Nm 228 37 ft lb 320 50 Nm 236 37 ft lb 310 50 Nm 228 37 ft lb 29 Group 72 Service Procedures 13 Install the leaf springs and spring saddle cap Start U bolts and tighten them to a torque of 500 75 Nm 369 55 ft lb AN CAUTION Do not reuse U bolts Note Make sure the leaf spring dowels and shims are lined up properly 500 75 Nm 369 55 ft lb 7221 19 02 01 Spring Assembly Rear Leaf Removal and Installation d y Ta cid ARO Ax W7000269 Raising the frame 30 Please read Guidelines for Working on the Volvo T Ride Suspension page 19 before beginning this procedure 1 Park the vehicle on a level surface and chock the front wheels 2 Using an air lift raise the frame until the pressure is relieved from the leaf spring assembly 3 Support the frame with jack stands at the front and rear of the suspension Group 72 W6001312 Removing the spring U bolt nuts Service Procedures 4 Remove the spring U bolt nuts
23. unction Bogie Bracket Saddle Bracket The Bogie Bracket assembly saddle bracket provides stability for lateral movement and serves as an anchor for the spring cradle and the parabolic spring assembly It helps maintain maximum articulation of the suspension as well as durability The Bogie Bracket plays a key role axially as well as radially Spring Cradle Cradle Assembly The spring cradle cradle assembly provides maximum atriculation for the suspension The spring cradle functions axially as well as radially while riding on the trunnion tube in the Bogie Bracket The axial play in the cradle is preset by the depth of the trunnion tube in the Bogie Bracket saddle The spring cradle also contains two nylon bushings which contain journals for lubricating the assembly Nylon Bushings The nylon bushings serve as journals for lubrications both axially and radially They are essential in maintaining life and serviceability of the spring cradle and trunnion tube The nylon bushings help to simplify servicing the spring cradle Note Nylon bushings should be replaced in pairs 12 W6001336 W6001340 W6001339 Group 72 Parabolic Spring Leaves The parabolic spring leaves are mounted upside down and outside of the frame rails They are fastened to the spring cradle and provide the lightweight suspension with excellent ride characteristics This design contributes to axle flexibility while maintaining contact to
24. wer leaf spring and remove the U bolts from the cradle Note It may be necessary to rotate the cradle back and forth to remove the U bolts 7 Remove the hub cap from the cradle and clean off the grease from around the snap ring W6001315 42 Group 72 W6001316 Removing the snap ring W6001319 Removing the outer thrust washer W6001317 Removing the outer thrust washer Service Procedures 8 Using snap ring pliers remove the snap ring N WARNING Always wear eye protection when working around batteries to prevent the risk of injury due to contact with sulfuric acid or explosion 9988185 9 Using VOLVO tool 9992337 remove the outer thrust washer 9992337 10 Slide the cradle off from the trunnion tube and remove the inner thrust washer Use Snap On tool number A173 to remove the inner thrust washer A173 43 Group 72 44 W6001318 Service Procedures 11 Remove the nylon bushings from the cradle For grease seal replacement see service procedures for grease seals replacement Note Use a generous amount of grease when replacing grease seals 12 Install the inner thrust washer and nylon bushing s by sliding the cradle on to the trunnion tube 13 Install the outer thrust washer and snap ring Note It is recommended to use a new snap ring when replacing cradle seals or grease seals Make sure the snap ring is fully seated 14 Install the hub
25. y engaged so that the components are positioned together properly Using a hand held clicker style torque wrench always snug up the U bolt nuts all over before torquing 19 Group 72 Service Procedures 5 After the necessary work has been performed on the B Ride Tandem Suspension vehicle realignment may be required Refer to the proper service information 20 Group 72 Service Procedures 6521 03 02 09 V Torque Rod Replacement W7000752 Bottle jack W6001320 Please read Guidelines for Working on the Volvo T Ride Suspension page 19 before beginning this procedure 1 Park the vehicle on a level surface and chock the front wheels Failure to properly support the nose of the axle may result in the axle falling which can cause serious injury or death to anyone near or under the vehicle Place a bottle jack under the axle flange to prevent the axle from rolling over 3 Remove the four bolts that mount the V Torque Rod to the frame mounted bracket 21 Group 72 22 W6001321 Service Procedures 4 Remove the four flange nuts that mount the V Torque Rod to the axle mounted torque rod bracket and cut any tie straps or clippings from the V Torque Rod 5 Using a lifting fixture remove the V Torque Rod from the vehicle 6 Set the replacement V Torque Rod in place by using a lifting fixture and line up the pins for proper alignment 7 Start the flange nuts on the axle
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