Front Springs
Contents
1. The VNL which is longer than the VNM uses a front hanger that is angled toward the rear of the vehicle pro viding a setback axle characteristic The VNM front hanger drops directly beneath the front engine cross member to position the front axle further forward This increases the smoothness of the ride on highway type vehicles 12 Design and Function W6000814 W7001017 Front hanger axle back for VHD W7001015 Front hanger axle forward for VHD Group 72 Front Springs Rear Hangers The rear hangers used for the front springs is dependent upon the height of the frame The hanger is bolted through the frame web and the frame flange lt has a large hole near the bottom that accommodates a bush ing and a spring pin The pin is inserted through the bushing and into a shackle on each end The other end of the shackles are connected to a similar pin that is in serted through a bushing in the spring Design and Function W6000818 Rear hanger for 266 mm frame height for VN O EJ W6000817 Rear hanger for 300 mm frame height axle Back for VHD W7001014 Spring hanger rear axle forward for VHD 13 Group 72 Front Springs Design and Function Shackles and Pins The rear of the spring is hung from the rear hanger by two shackles and two spring pins The pins are inserted through each shackle and are threaded into the bushing that is in the spring and in the hanger There are two types of pi2. Fig 1 Spring assembly exploded view 1 Install the replacement rear spring hanger and mounting bolts 2 Using tool 9996791 install the upper shackle pin in the replacement rear spring hanger 9996791 3 Install the inner and outer shackles 25 Group 72 Front Springs 4 Tighten the shackle pin bolts 5 Remove the air lift jack from under neath the vehicle 6 Install the two grease fittings in the up per and lower spring pins 7114 03 02 01 Front Spring Front Hanger Re placement AP DANGER Before working on a vehicle set the parking brakes place the transmission in neutral and block the wheels Failure to do so can result in unexpected vehicle movement and can cause serious personal in jury or death AN DANGER Never work under or around a vehicle unless it is sup ported on jack stands of adequate rating Failure to use adequate jack stands can result in the vehicle falling which can cause serious injury or death to anyone under the vehicle Removal 1 Remove the front bumper 2 Unlatch and raise the hood 3 Disconnect the hood spring 4 Disconnect the hood assist cylinder on each side of the hood Note Rest the hood on a tall jack stand padded with rags at both cor ners to support the weight of the hood 26 Service Procedures 5 Remove the nuts securing the hood pivot block to the front spring hanger and then slide the hood forward a few inches for access
3. Note Mark the location of the pivot block before removal of the nuts 6 Remove the cotter pin in the power steering assist cylinder stud nut 7 Remove the power steering assist cylinder stud nut 8 Using a rubber or leather mallet re move the power steering assist cylinder from the front spring hanger 9 Using an Air lift jack lift and support the frame rail behind the rear spring hanger just enough to relieve the pres sure from the spring assembly 10 Remove the grease fitting from the front spring pin 11 Remove the spring pin bolts 12 Using tool 9996791 remove the front spring pin 9996791 13 Cut any zip ties that might be securing and in the way harness 14 Remove the eight closing crossmem ber mount bolts and remove the crossmember 15 Remove the lower spring hanger mount bolts 16 Remove the lower spring hanger mount bolts in the engine mount crossmember Group 72 Front Springs 17 Remove the tow hook mount bolts which are also the remaining spring hanger mount bolts Remove the tow hook from the vehicle 18 Remove the front spring hanger from the vehicle Installation Spring assembly exploded view 4 Install the replacement spring hanger and begin tightening the tow hook mount bolts Note Use a punch to assist in align ing the holes 2 Start tightening the lower spring hanger mount bolts 3 Install and tighten the spring hanger mount bolts in
4. Feedback Operation Numbers Group 72 Front Springs General General Front Spring Suspension This service information describes the design function operation and service proce dures for the front springs and associated components used on the Volvo VN VHD series vehicles The front spring suspension supports the weight of the vehicle and isolates it from vi brations caused by irregularities in the road surface It transmits the force of that weight to the front wheels through the springs and the front axle The major components of the front spring suspension are the springs spring hangers and the shock absorbers Associated components consist of the shackles spring pins U bolts and wedges Group 72 Front Springs Specifications Specifications Front Springs VN Springs Bel alo a lle 1335 mm 52 5 in Type Axle Load SCT Tele 5 5 metric ton 12 000 Ib PRADO lO aglio 5 7 metric ton 12 500 Ib Far lao 1 ione annettere 6 0 metric ton 13 200 Ib EE eat 6 7 metric ton 14 600 Ib Parabole aan Irina 7 3 metric ton 16 600 Ib Shock Absorber Mana Let EE Sachs Spring Bushing AKAL DO MIC bmm 197 in Torque Requirements SOMMG PIT DINCMDONS assisi a 85 15 Nm 63 11 ft lb BI ee 420 50 Nm 311 37 ft lb Spring hangermounting bolls az 200 30 Nm 148 22 ft Ib Shock absorber mounting boltS ao 275 45 Nm 204 33 ft lb Rubber spring spacer tn 110 15 Nm 81 11 ft Ib Group 72 Front Springs Specificat
5. Front Shackle Pin Replacement 21 Front Spring U bolt Torque Adjustment 2 22 LE nn m nn 24 Front Shock Absorber Replacement nn 20 Front Shock Absorber Bracket Replacement 222 LE nn m m o 20 VOLVO Volvo Trucks North America Inc PO Box 26115 Greensboro NC 27402 6115 Volvo Trucks Canada Ltd 6490 Vipond Drive Mississauga Ontario L5T 1W8 http www volvotrucks volvo com PV776 TSP141989 1500 8 2000 O Volvo Trucks North America Inc 2000
6. and block the wheels Failure to do so can result in unexpected vehicle movement and can cause serious personal in jury or death 1 Remove the lower shock absorber mounting bolt 20 Service Procedures 2 Remove the upper shock absorber mounting bolt and remove the shock 3 Install the replacement shock and tighten the bolt that connects the up per part of the shock to the framerail 4 Install the shock in the lower mount Insert the bolt through the mount and the shock from the front and tighten 7614 03 02 04 Front Shock Absorber Bracket Replacement AP DANGER Before working on a vehicle set the parking brakes place the transmission in neutral and block the wheels Failure to do so can result in unexpected vehicle movement and can cause serious personal in jury or death 1 Remove the nut connecting the shock to the shock absorber bracket 2 Remove the U bolt nuts that connect the shock absorber bracket to the axle 3 Install the replacement bracket and tighten the U bolts 4 Re install the shock absorber in the re placement bracket and tighten the nut connecting the bracket to the axle Group 72 Front Springs 7214 03 02 01 Front Shackle Pin Replace ment T DANGER Before working on a vehicle set the parking brakes place the transmission in neutral and block the wheels Failure to do so can result in unexpected vehicle movement and can cause serious personal in jur
7. spacer and axle are held tightly together by two U bolts which wrap over the lower shock bracket and through holes in the axle pad Shock absorber The shock absorbers dampen vibrations caused by irreg ularities in the road surface The upper end of the shock absorber is mounted to a hanger which is bolted directly to the frame web The lower end of the shock bolts to a hanger that is held in place by the U bolts 16 Design and Function W6000819 W6000836 U bolt Shock absorber Group 72 Front Springs Service Procedures Service Procedures 7211 03 02 01 Front Spring Replacement VN Models AN DANGER Before working on a vehicle set the parking brakes place the transmission in neutral and block the wheels Failure to do so can result in unexpected vehicle movement and can cause serious personal in jury or death AN DANGER Never work under or around a vehicle unless it is sup ported on jack stands of adequate rating Failure to use adequate jack stands can result in the vehicle falling which can cause serious injury or death to anyone under the vehicle Removal 1 Remove the splash guard from under the cab 2 Loosen the U bolt nuts Remove the nuts washers plates and U bolts 3 Raise the front of the vehicle until the spring is off the axle Place jackstands under the vehicle W6000873 Remove grease fittings from each of the three spring pins W6000833 Remove pinch bolt
8. America Inc Greensboro NC USA Order number PV776 TSP141989 O 2000 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 me chanical photocopying recording or otherwise without the prior written permission of Volvo Trucks North America Inc Contents aaa Front Spring SuspensiOn aan o aerei o cia i A AE ig aia TODE iii e O ubi Design and Function i FOSSI i Front Spring Suspension Exploded View 10 TENDE cicale 10 Front Spring Suspension Exploded View anne 11 CO anni 11 Font Hangers aiar 12 Fair AROS aitor R E 13 SNK FIR ernia 14 ie el A OO a idos 15 o A ERRE 15 DIO diceva 16 e os EE 16 Service Procedures sn eese 17 Font Sorina Replacement EE 17 VIE avvia 17 Fron Spring Replacemenl au 19 SAL IDO t 19 Front Shock Absorber Replacement_ i 20 Front Shock Absorber Bracket Replacement cc seccceseeeeseeeees 20 Front Shackle Pin Replacement ooconcccccononcconocooccnncccocononaninncnanananos 21 Front Spring Bushing Replacement 21 Front Sorina Hegh Aedes 23 Gab Lean LINEA ceca 24 Front Spring U bolt Torque Adjustment ANE 24 Front Spring Rear Hanger Replacement _ 25 Front Spring Front Hanger Replacement oocccccccconnnnnncconccccnoanananinnnos 26
9. Service Manual Trucks Group 721 500 Front Springs VN VHD Ge sg KK se W i wm IE PV776 15P141989 VOLVO Foreword The descriptions and service procedures contained in this manual are based on de signs and methods studies carried out up to August 2000 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 ser vice 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 refer ence to an S R T Standard Repair Time Service procedures which do not include an operation number in the title are for gen eral information and no reference is made to an S R T The following levels of observations cautions and warnings are used in this Service Documentation Note Indicates a procedure practice or condition that must be followed in order to have the vehicle or component function in the manner intended Caution Indicates an unsafe practice where damage to the product could occur Warning Indicates an unsafe practice where personal injury or severe damage to the product could occur Danger Indicates an unsafe practice where serious personal injury or death could oc cur Volvo Trucks North
10. center bolt sits in the hole in the center of the spacer Note lt may be necessary to use a pry bar or a portable winch to position the spring 8 Install the U bolts over the shock ab sorber bracket and through the axle Install the plates and U bolt nuts be neath the axle Tighten the nuts hand tight 9 Remove the jack stands from under the vehicle and lower the vehicle Group 72 Front Springs 10 Torque the right and left side U bolts to 420 50 Nm 310 37 ft Ib 420 50 Nm 310 37 ft Ib 11 Torque all five spring pin pinch bolts to 85 15 Nm 63 11 ft Ib 85 15 Nm 63 11 ft lb 12 Install a grease fitting in the front and both rear spring pins 13 Grease the spring pins using a lithium based grease with EP additives NLGI 2 until grease flows past the seal on both ends 14 Install the splash guard 7211 03 02 01 Front Spring Replacement VHD Models AN DANGER Before working on a vehicle set the parking brakes place the transmission in neutral and block the wheels Failure to do so can result in unexpected vehicle movement and can cause serious personal in jury or death AP DANGER Never work under or around a vehicle unless it is sup ported on jack stands of adequate rating Failure to use adequate jack stands can result in the vehicle falling which can cause serious injury or death to anyone under the vehicle Removal 1 Remove the front bumper 2 R
11. e having a lean problem first by measuring the frame rail height and visi 24 Service Procedures bly looking at the vehicle If the problem does exist the following procedure should be carried out Checking Chassis Variance 1 Park vehicle on a level surface 2 Measure the distance from the ground to the center of the front spring eye 3 The difference between the left and right should not exceed 0 375 in Checking Cab Variance Conventional 4 Park vehicle on a level surface 5 Measure at the cab skirt under the for ward door hinge to the ground 6 The difference between the left and right should not exceed 0 75 in Cab and chassis are not allowed to lean to ward opposite directions 7214 05 02 01 Front Spring U bolt Torque Ad justment N DANGER Before working on a vehicle set the parking brakes place the transmission in neutral and block the wheels Failure to do so can result in unexpected vehicle movement and can cause serious personal in jury or death AN DANGER Before working on a vehicle set the parking brakes place the transmission in neutral and block the wheels Failure to do so can result in unexpected vehicle movement and can cause serious personal in jury or death Remove the existing nuts from the U bolt Group 72 Front Springs 2 Remove the U bolts from the vehicle and install the replacement U bolts 3 Snug up the U bolt nuts so that there is n
12. ed View VN Models 12 N MET Ei SZ ii a N AS wa W6000641 1 Frame rail 6 Wedge 11 Shackle 2 Front bracket VNM 7 Wedge wsher 12 Spring pin 3 Parabolic spring 2 leaf 8 Shock absorber 13 Grease fitting 4 U bolt 9 Shock absorber bracket upper 14 Rubber spring 5 Shock absorber bracket lower 10 Rear hanger 266 mm 15 Axle Insets A Rear hanger for 300 mm frame rail in place of of item 10 B Front hanger for VNL in place of item 2 10 Group 72 Front Springs Design and Function Front Spring Suspension Exploded View VHD Models W7001072 Insets O Om P IN m gt Hanger rear Spring pin Spring pin Spring shackle U Bolts Spring assembly Front hanger for Axle Back VHD in place of item 1 Rear hanger for Axle Back VHD in place of item 9 Hanger Hanger Hanger front Spring pin Bump stop Wedge Spacer Group 72 Front Springs Front Hangers The springs are suspended from the frame by the spring hangers There are four different front hangers and two different rear hangers The front hanger design used de pends on the vehicle model the frame height 266 mm or 300 mm and the load rating of the vehicle The rear hanger design used depends on the vehicle frame height The front hanger performs two functions First it is the attachment point for the front engine crossmember en gine support Second it is the attachment point for the forward end of the front springs Example
13. emove the cotter pin in the power steering assist cylinder stud nut 3 Remove the power steering assist cylinder stud nut Service Procedures 4 Using a rubber or plastic mallet re move the power steering cylinder from the front spring hanger 5 Remove the U bolt nuts 6 Remove the U bolts and the spring stop from the front spring assembly 7 Using an air lift jack lift and support the frame rail behind the rear spring hanger 8 Remove the grease fitting in the front spring pin 9 Remove the shackle bolts Installation W7001020 Spring bracket replacement VHD 1 Install the replacement spring assem bly 19 Group 72 Front Springs 2 Using tool 9996791 install the upper spring shackle pin in the replacement spring assembly 9996791 3 Install the inner and outer shackles 4 Install and tighten the shackle bolts 5 Install the grease fittings in the rear spring shackle pins 6 Install the front spring pin using tool 9996791 9996791 7 Install and tighten the spring pin bolts 8 Install the grease fitting in the front spring pin 9 Install the power steering assist cylin der 10 Install and torque the 2 U bolts 500 75 Nm 370 55 ft Ib 500 75 Nm 370 55 ft Ib 11 Install the front bumper 7611 03 02 01 Front Shock Absorber Re placement AP DANGER Before working on a vehicle set the parking brakes place the transmission in neutral
14. ions VHD Springs Buet sinrai nee 1335 mm 52 5 in Type Axle Load Parabole A e ARR A RO 5 7 metric ton 12 500 Ib A ee ee 6 7 metric ton 14 600 Ib Parabole amp MU Lea ie ie 7 5 metric ton 16 500 lb MUI recisi 8 6 metric ton 18 800 lb Farabo IE amp N E sciita iaia 9 1 metric ton 20 800 lb Parabolle El ns ee 10 0 metric ton 22 800 Ib Shock Absorber NEIE as Arvin Spring Bushing E E en ee 5mm 197 in Torque Requirements Spring DIA PICA DOS maria isses 85 15 Nm 63 11 ft lb U bolts M20 V22 fine4hfesd near 420 50 Nm 311 37 ft lb Spring hanger Mounting DOS rra feat 200 30 Nm 148 22 ft lb Shock absorber MOUNTING bolts 275 45 Nm 204 33 ft lb U bolts M20 ine tnreds ae eee alii 550 25 Nm 406 18 ft lb U bolls M22 Tine threds lello aa 600 25 Nm 422 18 ft Ib Group 72 Front Springs Tools Tools Special Tools The following special tools are required for work on the Front Springs The tool can be ordered from Volvo Trucks North America 9 W0001207 9996791 Spring Pin Tool W0001247 9992671 Hydraulic cylinder kyo ff W0001362 9996041 Spindle W0001258 9992670 Hydraulic hand pump W0001365 W0001364 l 9996154 Drift 9992641 Drift W0001363 W0001366 9996632 Drift 9999210 Nut Group 72 Front Springs Design and Function Design and Function Front Springs The front springs support the weight and load of the ve hicle above the fron
15. ne of three thicknesses and are placed between the spring and the axle pad The wedge thickness depends on the front axle and the type of rear suspension The wedge used on the left side of the vehicle will be thicker than the wedge used on the right side to compensate for the greater flex of the spring caused by the weight of the driver and the batteries A thicker left side wedge levels out the vehicle and reduces the tendency of the vehicle to pull to the driver s side Some axle and rear suspension combinations require an additional spacer to obtain the proper front end height The spacer is shaped similar to the wedge except that it is not tapered The spacer is used with an Eaton axle rated at 5 5 ton load with a B Ride rear suspension and with an Eaton or Rockwell axle rated a 6 7 ton load with B Ride rear suspension Bump Stop The Bump Stop is located on the top of the Spring and its primary function is to keep the U bolts aligned The Bump Stop is also instrumental in preventing the Front Springs from becoming overloaded and bottoming out Design and Function W6000820 Typical front suspension wedge W7001016 Spring stop VHD 15 Group 72 Front Springs U bolts U bolts are the method by which the suspension compo nents are fastened together The lower shock absorber bracket rests on top of the springs A wedge and possi bly a spacer are placed between the spring and the axle pad The hanger spring wedge
16. ns used The pin that supports the front of the spring and the upper pin on the rear have a passage that is drilled about halfway into the pin from the end with the slots for the spring pin tool At the bottom of the drilled passage is a hole perpendicular to the passage The passage and hole allow grease to be pumped to the threaded area of the pin after it is installed The lower pin on the rear has its passage drilled from the end of the spring opposite the slots for the spring pin tool W6000815 The use of two types of pins is necessary because the Spring pin shackle lower rear pin must be inserted from the inboard side of the vehicle By using a pin with the grease passage drilled from the rear end grease fittings for all three spring pins are on the outboard side providing greater accessibility The pins are held in place by a stop bolt at each end The stop bolt is fitted through a hole in the shackle The bolt rests in a groove in the end of the spring pin pre W6000816 venting it from turning or moving laterally within the Spring pin shackle and hanger 14 Group 72 Front Springs Wedges and Spacers There is a system of wedges that is used to adjust the height of the front springs The wedges compensate for the variations of the height of the axle pad between dif ferent size and different manufacturers of front axles All the wedges are made with a 5 5 degree taper to provide proper front wheel caster Wedges can be o
17. o movement in the bottom plate FRONT 1 3 o e Da 4 2 o e W7000750 Use the crossover method see pattern above to evenly tighten the U bolt nuts Torque nuts in approximately 100 Nm 75 ft Ib increments until full torque is obtained 7114 03 02 02 Front Spring Rear Hanger Re placement AN DANGER Before working on a vehicle set the parking brakes place the transmission in neutral and block the wheels Failure to do so can result in unexpected vehicle movement and can cause serious personal in jury or death AP DANGER Never work under or around a vehicle unless it is sup ported on jack stands of adequate rating Failure to use adequate jack stands can result in the vehicle falling which can cause serious injury or death to anyone under the vehicle Removal 4 Using an Air lift jack lift and support the frame rail behind the rear spring hanger 2 Remove the grease fittings from the two spring shackle pins Service Procedures 3 Remove the shackle bolts 4 Using a Pry bar remove the shackles from the spring pins 5 Remove the upper spring pin from the vehicle using tool 9996791 9996791 6 Remove the mount bolts that secure the hanger to the lower portion of the frame rail 7 Remove the hanger mount bolt that secures the spring hanger to the cab mount bracket 8 Remove the remaining mount bolts and remove the hanger from the vehi cle Installation W7001018
18. ote Parabolic leaf springs have the tendency to ap pear flat or curved downward when they are loaded This condition is often mistaken as evidence of a bad spring If visual inspection of the spring does not reveal any problems the spring should be considered acceptable If there is still doubt about whether the spring is accept able then the spring height should be measured Spring height is the distance from the straight line between the support points of the spring and the compression face of the last leaf or spacer In order to properly measure spring height the spring must be removed from the vehi cle and a known load must be applied Do NOT attempt to load a spring without proper spring testing equipment Applying load to a spring that is removed from the vehicle is dangerous A loaded spring contains considerable energy If that en ergy is released suddenly the spring could come apart or fly out of the test apparatus causing serious personal injury W6000642 4 Visually inspect the spring for cracks or breaks If the spring is not cracked or broken it should be considered ac ceptable for further use If additional confirmation of spring acceptability is desired perform the remainder of the this test 2 Remove the spring from the vehicle in accordance with the removal section of the front spring replacement proce dure 3 Note If spring testing equipment is not available the spring should be sen
19. s from the top of the rear spring shackle W6000821 Using tool 9996791 remove the spring 9996791 pin from the shackle and rear spring hanger Lower the spring to the floor 17 Group 72 Front Springs W6000823 Remove the pinch bolt from the front spring hanger W6000825 Using tool 9996791 remove the front 9996791 spring pin 9 Lower the front of the spring to the floor 10 Remove the lower pinch bolts from the rear shackles then remove the shack les 11 Using tool 9996791 remove the re 9996791 maining rear spring pin 18 Service Procedures Installation Part no 257810 5 5 ton capacity 257811 6 7 ton capacity Special tools 9996971 4 Using tool 9996791 screw the spring pin into the bushing in the rear of the spring 2 Install a shackle on each side of the spring pin Install the lower pinch bolts and tighten the nuts hand tight 3 While holding the rear of the spring in 9996791 position screw the top rear spring pin through the shackles and rear spring hanger Install the upper pinch bolts and tighten the nuts hand tight 4 Using tool 9996791 install the front 9996791 spring pin through the hanger and spring Install the pinch bolt and tighten it hand tight 5 Lower the vehicle until the spring al most rests on the axle 6 Loosen the U bolts on the opposite side of the vehicle to allow the axle to be positioned 7 Position the spring so that its
20. t axle They also provide the method to attach the front axle to the frame and provide stability to the front axle against sway A thin plate at the center and on top of each spring keeps them separated in the middle A rubber cushion is mounted to both ends of the lower leaf to reduce friction by separating the ends The springs are held together by a center bolt The springs are attached to the front hanger by a threaded pin The pin inserts through the hanger and through a bushing in the curl in the top leaf The rear spring pin goes through a shackle on each side of the Se W6000827 spring The shackles attach to the rear hanger with the same type pin as used on the front hanger Parabolic leaf springs have the tendency to appear flat when they are loaded This condition is often mistaken as evidence of a bad spring The criteria for judging if a spring is acceptable for use is the spring height Spring height is the vertical distance from the straight line between the support points of the spring and the com pression face of the last leaf or spacer In order to properly measure spring height the spring must be re moved from the vehicle and have a known load applied A procedure to test spring deflection is provided See Front Spring Height Checking page 23 L 2 leaf parabolic spring loaded W600081 1 Group 72 Front Springs Design and Function Front Spring Suspension Explod
21. t to a facility with the proper equipment and the remainder of this test proce dure performed by that testing facility Place the spring in a press so that the press forces the spring eyes down ward Ensure the spring center is supported 23 Group 72 Front Springs 4 Apply the load listed in the following table to the spring al Spring Full Capacity spring load VN 5 5 metric tons 24525 N 12 000 Ibs 5513 Ibf VN 6 7 metric tons 29400 N 14 600 lbs 6 7 6609 Ibf VHD 6 0 metric tons 26950 N 13 700 Ibs 6059 Ibf Note The upper face of the top spring may deflect upward above the spring eye centerline during this procedure step 5 Tie a string through both spring eyes to determine their centerline 6 Measure the spring height Verify it is 78 4 mm 3 07 0 16 inch 7 Remove the load from the spring Re move the string from the spring eyes 8 If the spring height was not within tol erance the spring must be replaced 9 Reinstall the spring if spring height was within tolerance otherwise obtain and install a new spring 7211 06 02 01 Cab Lean Checking AN DANGER Before working on a vehicle set the parking brakes place the transmission in neutral and block the wheels Failure to do so can result in unexpected vehicle movement and can cause serious personal in jury or death Note Adjustment are not recommended until after the initial break in period Verify a vehicl
22. the engine mount crossmember 4 Tighten the lower spring hanger mount bolts 5 Tighten the tow hook and spring hanger mount bolts W7001019 6 Install the front spring pin using tool 9996791 Service Procedures 9996791 27 28 Feedback One of our objectives is that workshop personnel should have access to correct and appropriate service manuals where it concerns fault tracing repairs and maintenance of Volvo trucks In order to maintain the high standards of our literature your opinions and experience when using this manual would be greatly appreciated If you have any comments or suggestions make a copy of this page write down your comments and send them to us either via telefax or mailing directly to the address listed below To From Volvo Trucks North America Inc 0 ui Dept 516 Service Publications 7825 National Service Road PO Cer Gel Cu GK SE Greensboro NC 27402 6115 USA Fax 336 393 3170 Comments proposals 7114 03 02 01 7114 03 02 02 7211 03 02 01 7211 06 02 01 7211 06 03 01 7213 03 03 01 7214 03 02 01 7214 05 02 01 7611 03 02 01 7614 03 02 04 Operation Numbers Front Spring Front Hanger Replacement 4 26 Front Spring Rear Hanger Replacement 248 4 25 Front Spring Replacement i 17 19 Cab Lean Checking LL 24 Front Spring Height Checking 2 2 v En Lu nn nn 23 Front Spring Bushing Replacement 2 2 5 8 084 21
23. the rear spring hanger bracket 21 Group 72 Front Springs Place drift 9992614 and cylinder 9992671 on the spindle Install and tighten nut 9999210 on the spindle Connect pump 9992670 to the cylin der 6 Pull out the bushing as far as possible Release hydraulic pressure 7 l necessary thread the nut down the spindle Pull the bushing out the rest of the way 8 Remove the nut cylinder drift 9992641 and bushing from the spin dle 9 Pull the spindle out of the hanger Place drift 9996632 and a new bush ing on the spindle and insert it back into the spring hanger 22 6041 9992614 9992671 9999210 9992670 9992641 9996632 Service Procedures 10 Slide drift 9992641 and cylinder 9992671 on the spindle Install and tighten nut 9999210 on the spindle 11 Press the bushing into the hanger 12 Remove the special tools from the spring hanger 13 Install the spring in accordance with the installation portion of the front spring replacement service procedure 6041 W6000871 9992641 9992671 9999210 Group 72 Front Springs 7211 06 03 01 Front Spring Height Checking Service Procedures SPRING HEIGHT AN DANGER Before working on a vehicle set the parking brakes place the transmission in neutral and block the wheels Failure to do so can result in unexpected vehicle movement and can cause serious personal in jury or death N
24. y or death Removal 4 Using an air lift jack lift and support the frame rail behind the rear spring hanger 2 Remove the two grease fittings from the spring shackle pins 3 Remove the shackle bolts 4 Using a pry bar remove the shackles from the spring pins 5 Remove the upper and lower spring 9996791 pins using tool 9996791 Installation W7001018 Shackle amp Pin Replacement Service Procedures 1 Install the upper and lower spring pins 9996791 using tool 9996791 2 Install the inner and outer shackles and start the shackle bolts 3 Tighten the shackle bolts 4 Remove the air lift jack from under neath the vehicle 7213 03 03 01 Front Spring Bushing Replace ment AN DANGER Before working on a vehicle set the parking brakes place the transmission in neutral and block the wheels Failure to do so can result in unexpected vehicle movement and can cause serious personal in jury or death Part no 1075726 Special tools 9992641 9992671 9992670 9996041 9996154 9996632 9999210 1 Remove the spring in accordance with the removal portion of the front spring replacement service procedure 2 Using a press and a suitable size drift press the bushing out of both ends of the spring 3 Press a new bushing into each end of the spring Ensure the bushing is cen tered 4 Place drift 9996154 on the spindle and 9996154 insert the spindle through the bushing in
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