General Operating and Service Manual
Contents
1. SV11405MS Edition 12 2006 Last updated 2006 12 01 Amendments and errors reserved SAF Page Kenti on OF SAP uiii UIN NNNM A 2 3 SAF general safety instructions nnne nnn nnn nnne trennt tatis 6 SAF general service 7 E a 8 EER NR 9 Service schedule SK RB RLB SKNLB SKVLB 9019 9022 BI9 19 BI9 22 BIL9 19 BIL9 22 BINL9 19 BINL9 22 BIVL9 19 BIVL9 22 he Be gts bo T TAATA AN 10 SK RS RZ 9019 9022 11019 11222 eee eee eee teeter nnn enne nnne nnns 11 Adjustment instructions SKNLB SKVLB 9019 9022 BINL TS BINE E27 BIVES T9 BVP 12 13 SKRLB 9019 9022 BIL9 19 Pdr Rope 14 15 Maintenance visual inspection of brake pad wear Knorr disc brake Type SN7 SK RB RLB 9022 K KI SK RS RZ 9022 11222 K Knorr disc brake Type SN6 SK RB RLB 9019 K KI SK RS RZ 9019 11019 K BI9 19K BIL9 19K BINL9 19K BIVL9 19K ub SAL CENA 16 Knorr disc brake Type SK7 SK RB RLB 9022 01 9 22 01 BIL9 22K01 BINL9 22K01 BIVL9 22K01 519 22 01 ZI9 22K01 SI11 22KO01 ZI11 22K01 17 Wabco disc brake Type PAN 22 1 SK RB RLB 9022 W WI SK RS RZ 9022 11222 W Wabco disc brake Type PAN 19 1 SK RB RLB2. Travel direction lt Permissible values for self steering axle Example of toe in Y X 4 mm m to 7 mm m Toe in min 4 mm m max 7 mm m SAF self steering axles must not have a negative Camber angle track toe out Measurement of the axle geometry Difference in the distancees AC and BD 3 mm Lubrication Service instructions point Lubricate the king pin bearing after assembly For the first time after 1 month then every 6 months Visual inspection Inspect the components for proper function every 6 months Zero position Both thrust washers are fully in contact without gaps Lubrication 12 point SKNLB SKVLB 9019 9022 BINL9 19 BINL9 22 BIVL9 19 BIVL9 22 Tightening torques Designation Number per axle Tightening torque Stub axle bearing 450 Nm 360 Thrust washer retainer 120 Nm Tie rod end 600 Nm Clamp bolt Tie rod Clamp bolt 120 Nm Locking plate Locking cylinder 120 Nm Steering angle table Bolt overhang L Steering angle a 38 mm 16 44 5 mm 14 51 mm 12 57 5 mm 10 centr Note In order to avoid incorrect measurement the steering axle must be relieved SV11405MS Edition 12 2006 Last updated 2006 10 23 Amendments and errors reserved SAF SV11405MS Edition 12 2006 Last updated 2006 12 07 Amendments
3. bearings This can result in a significant deterioration in road safety e g failure of wheel bearings 7 The parking brake must not be immediately applied when the brakes are hot as the brake discs and brake drums may be damaged by different stress fields during cooling 8 Use the supports provided when loading and unloading in order to avoid damage to the axle Observe the operating recommendation of the trailer builder for off road operation of the installed axles and suspension systems The SAF definition of OFF ROAD means driving on non asphalted non concreted routes such as e g gravel roads agricultural and forestry tracks on construction sites and in gravel pits Off road operation of SAF axles and suspension systems not designed for the purpose may result in damage and hence to an impairment of road safety 10 SAF axles and suspension systems require continuous care service and maintenance in order to maintain operational and road safety and to be able to recognise natural wear and defects in good time The daily inspection of the trailer for road safety before starting the journey is one of the driver s obligations SAF recommends that the tests and maintenance operations described on page 7 are carried out The SAF repair manuals and instructions must always be observed during all repairs We recommend the use of original SAF spare parts A close knit service network of SAF partner companies is available for the techni
4. 26 16 58 35 45 75 72 74 74 32 59 33 07 07 34 9 13 82 68 41 48 6 18 31 98 70 40 2 12 50 02 60 39 02 66 16 55 74 45 75 72 74 74 42 02 61 10 45 06 386 26 16 58 35 90 21 22 75 13 21 386 26 16 58 35 SAF
5. 9019 W WI SK RS RZ 9019 11019 W Wabco disc brake Type PAN 22 1 BI9 22W BIL9 22W BINL9 22W BIVL9 22W SI9 22W 7 7I9 22W 7 5 1 22 ZITT 22W nase 18 Contents Page Brake disc safety check sss nennen nnne nnne nennen tenni tnnt nnns 19 Tightening instructions Tor adjustable pivot ERR EE 20 Semi trailer tilt angle ac etie EIEREPIPEREIEETIEREPIEERITERIESERISEERISSEDIGEEEIEEEUS IUD UD UE PEDES DISP UESPDNEE ESI CIU 21 Tyre changing on fully loaded trailer with INTRA axle sessi 22 Adjustment of the air suspension system ride height ccccccsesessscsseesssseeseesssseerseseceeeesesaceeesesaeereesanesaseeeesasaeensess 23 Zoe SOR 24 SV11405MS Edition 12 2006 Last updated 2006 12 01 Amendments and errors reserved SAF GB SV11405MS Edition 12 2006 Last updated 2006 12 01 Amendments and errors reserved SAF Please observe the following safety instructions in order to maintain the operational and road safety of your SAF axles and suspension systems 1 The wheel contact surfaces between the wheel disc and wheel hub and the wheel nut contact surface at the wheel disc must not be additionally painted The contact surfaces must be clean smooth and free from grease Failure to observe this may result in the wheel
6. air suspension system ride height Air suspension valve As standard SAF air suspension axles and system require only one air suspension valve The air suspension valve controls the air bag pressure in relation to the trailer load in order to maintain a constant ride height in every load condition The air suspension valve is fastened to the trailer frame with screws and connected to the axle via the pivot joint valve lever and adjustment pipe On triple axle trailers the system is generally connected to the middle axle normally in the middle of the axle and on twin axle trailers to the rear axle In special cases e g large trailer tilt angle the air suspension valve can be installed in the rear axle For trailers with axle lifting system the axle to which the system is connected depends on the axle to be lifted RAHMENBEFESTIGUNG VENTILHEBEL MOUNTING VALVE LEVER QI 9 7 GUMMIGELENK L rL 24 Roan FULCRUM E ANLENKSTANGE us cE ADJUSTMENT PIPE m C lg LL LOWERING 2 2 KONTERMUTTER LOCK NUT AUSFEDERUNG EINFEDERUNG FAHRTRICHTUNG T lt FRUNDT L4 WA o Installation The valve lever should be at least 200 mm long and is horizontal when the trailer is in the driving position As a function check move the lever down slightly Air must now escape via the venting cap into the atmosphere If air flows into the air bags when the lever is pushed d
7. coming loose Any additional instructions of the wheel manufacturer must also be observed 2 Only the wheel and tyre sizes approved by the trailer builder may be used The tyres must always have the specified inflation pressure 3 The brake systems of the tractor and the trailer semi trailer must be synchronised by means of a tractor trailer brake synchronisation not later than 5 000 km after the initial start of operation of the trailer semi trailer in order to ensure a safe and uniform braking behaviour and uniform brake pad wear Tractor trailer brake synchronisations should be carried out by appropriately qualified and equipped brake workshops The use of an additional braking system such as a trailer anti jackknife brake is forbidden by law on vehicles with type approval after January 1999 4 Before starting a journey ensure that the maximum permissible axle load is not exceeded and that the load is distributed equally and uniformly 5 Ontrailers with air suspension ensure that the air bags are completely filled with air before starting the journey Incompletely filled air bags may result in damage to axles suspension frame and superstructure and impair road safety 6 Ensure that the brakes are not overheated by continuous operation With drum brakes overheating can result in a hazardous deterioration in the braking efficiency With disc brakes overheating can result in damage to surrounding components in particular the wheel
8. that the U bolts is tightened to the torque specified on page 8 according to the trailer builders instructions Carry out a general safety check according to the statutory requirements e We recommend the use of only original SAF spare parts n the case of steering axles additionally observe the instructions on pages 12 to 15 We recommend that a safety check is performed when the minimum wear limit is reached SV11405MS Edition 12 2006 Last updated 2006 12 01 Amendments and errors reserved SAF SV11405MS Edition 12 2006 Last updated 2006 10 23 Amendments and errors reserved SAF Tightening torques SAF INTRA with steel hanger bracket M30 SW46 400 Nm 120 M16 WAF24 180 Nm for steel plunger piston 80 Nm for plastic plunger piston Tightening torques SAF INTRA with aluminium hanger bracket and M12 SW19 40 Nm M16 WAF24 180 Nm for steel plunger piston NOT MAINTENANCE FREE 80 Nm for plastic plunger piston Tightening torques SAF MODUL M24x2 SW36 M12 SW19 400 Nm 40 Nm M12 WAF19 80 Nm for steel plunger piston Cut screw K100x40 WAF10 M30 SW46 A 400 Nm 120 m ia M20 SW30 for plastic 180 Nm plunger piston Attention Threads not to be oiled or greased Pivot bolt on steel hanger brackets maintenance free e Service intervals for aluminium hanger brackets and stainless steel hanger brackets first check after 500 km furt
9. BI9 22W BIL9 22W BINL9 22W BIVL9 22W S 9 22W 719 22W 9111 22 Z111 22W Checking the pad wear Wear inspection PAN 19 1 PAN 22 1 At the long guide pin gt 94 mm gt 98 At the short guide pin 67 mm gt 73 Inspect the brake pads and brake discs and replace if necessary if the dimensions are larger than shown in the table above Brake disc safety check In order to be able to inspect the friction surface of the brake pads the pad retaining bracket has to be removed and the brake calliper adjuster backed off Remove and inspect the pads Wear limits Brake disc brake pad Brake disc Diameter iB mm new mm Wear limit reached mm Brake pad D Wear limit reached mm Wabco Knorr 37 11 11 SK7 9 37 Brake pads Install only brake pads approved by SAF 11 When replacing brake pads due to wear the pads on both sides of the axle must be replaced Brake pad wear difference max 5 0 mm inner outer pad Brake disc Carefully inspect the braking surface of the brake disc for further serviceability Mesh like cracking is permissible Cracks running to the hub centre up to max 1 5 mm width and depth are permissible C Unevenness of the disc surface is permissible D Through cracks not permissible Measure the brake disc thickness and polish if necessary For safety reason the minimum thickn
10. General Operating and Service Manual Edition 12 2006 SV11405MS Edition 12 2006 Last updated 2006 12 01 Amendments and errors reserved SAF SAF air suspension system Type INTRA The axle type designation Version identification number and serial number see type plate are required for the warranty procedure SAF air suspension system Type MODUL Type plate a ES SAUER ACHSEMFABRIK GMBH D 63856 BESSENBACH GERMANY FX MEAN MUERE REA AN 1280307 SN 261063097 Identification if the type plate is missing The Serial No of the axle is embossed in the axle end on the right hand side as seen in 2 the direction of travel Trailer manufacturer Body type Chassis No Date of delivery date of registration Spare parts service for SAF axles and suspension systems Exact type designations are required for spare parts orders Please enter the identification data of the suspension system in the type plate illustrated below so that the correct information is available when necessary SEN ARA SAFE Version BI9 22K01 Te SBK2243 115 Ident No 24791344920 1280397 SN 261063 97 8 No Serial No 1 fd O mae L P shave L D Enter the axle data from the SAF type plate SV11405MS Edition 12 2006 Last updated 2006 12 01 Amendments and errors reserved SAF
11. Servicefall wahlen Sie bitte immer die Rufnummer Ihres Heimatlandes In the case of service please always dial the number of your own country Inland home country 03 62 27 23 21 0 59 33 07 07 30 21 09 40 19 80 386 26 16 58 35 0 19 08 64 90 2 61 1045 06 0800 72 37 37 84 0 73 33 80 81 58 75 72 14 74 9 02 18 19 92 697 91 96 03 88 72 06 43 0 93 51 31 33 41 19 08 64 90 0 87 02 42 02 37 21 09 40 19 80 06 13 45 17 27 386 26 16 58 35 02 66 16 55 74 44 87 02 42 02 37 32 59 33 07 07 372 697 91 96 372 697 91 96 33 3 88 72 06 43 386 26 16 58 35 45 75 72 74 74 32 59 33 07 07 34 9 13 82 68 41 06 18 31 9870 02 12 50 02 60 39 02 66 16 55 74 45 75 72 74 74 42 02 61 10 45 06 0 26 16 58 35 0 21 22 75 13 21 386 26 16 58 35 www saf axles com Otto Sauer Achsenfabrik GmbH Hauptstra e 26 D 63856 Bessenbach Tel 49 0 60 95 301 0 Fax 49 0 60 95 301 259 www saf axles com egeo B 9300600000000606600000000000000006 Vom Ausland from abroad 43 3 62 27 23 21 32 59 33 07 07 30 21 09 40 19 80 386 26 16 58 35 41 19 08 64 90 42 02 61 10 45 06 00800 72 37 37 84 49 73 33 80 81 58 45 75 72 74 74 34 9 13 82 68 41 372 697 91 96 33 3 88 72 06 43 35 8 93 51 31 33 41 19 08 64 90 44 87 02 42 02 37 30 21 09 40 19 80 36 13 45 17 27 386 26 16 58 35 39 02 66 16 55 74 44 87 02 42 02 37 32 59 33 07 07 372 697 91 96 372 697 91 96 33 3 88 72 06 43 386
12. and errors reserved SAF SKRLB 9019 9022 BIL9 19 BIL9 22 Preconditions The track measurement must be carried out with the trailer in unloaded state On trailers with air suspension the trailer must be adjusted to ride height X UONIIIIP 9AL1 Permissible values for self steering axle Example of toe in Y X 4 mm m to 7 mm m Toe in min 4 mm m max 7 mm m SAF self steering axles must not have a negative Camber angle 12 track toe out Measurement of the axle geometry Difference in the distancees AC and BD 3 mm Dimension B is 537 mm engage the reversing lock SKRLB 9019 9022 BIL9 19 BIL9 22 Tighten all bolts to the prescribed torque and lock the nuts or insert the cotter pin Tightening torques Designation Number per axle Tightening torque 9AL1 Ball joint screw M30 340 Nm Reatining clamp screw 10 M12 80 90 Nm Steering damper screw M24 600 660 Nm Lock cylinder screw M6 8 10 Nm Cover plate screw Note 8 25 30 Nm During lubrication work on the steering pin bearing the axle must be relieved raised Lubrication at the bearing points of the king pin bolt for the first time after 1 month then every 6 months SV11405MS Edition 12 2006 Last updated 2006 10 23 Ame
13. cal support of the SAF axles and suspension systems and for the supply of original SAF spare parts see rear cover or on the Internet under www saf axles com Updates will be published as necessary on the Internet under www saf axles com Caution After every wheel change be sure to retighten the wheel nuts to the prescribed torque after 50 km and after 150 km Check the brake pad thickness at regular intervals e g when checking the tyre inflation pressure Minimum wear limits see page 19 Carry out regular visual checks of the brakes tyres and all chassis components and inspect for secure mounting wear leaks corrosion and damage At each brake pad change inspect the wheel bearing unit for grease leaks At each brake pad change inspect the brake calliper guide system for free movement Inspect the outer and inner bellows on the brake calliper for splits and damage and for the correct seating of the brake calliper adjuster cap at each brake pad change Inspect the brake disc for wear and cracking at each brake pad change Check the air suspension system ride height according to the trailer builder s instructions at regular intervals and adjust if necessary as instructed on page 23 e With aluminium and stainless steel hanger brackets check that the bolts of suspension arm bearings and shock absorbers are tightened to the prescribed torque as described on page 8 e With MODUL suspension systems check
14. ess for polishing the brake discs is defined as 39 40 mm 11 1 7 V SV11405MS Edition 12 2006 Last updated 2006 12 01 Amendments and errors reserved SAF SV11405MS Edition 12 2006 Last updated 2006 10 23 Amendments and errors reserved SAF Tightening instructions for adjustable pivot bolt Attention Tightening always within the specified ride height range No paint residues between eccentric thrust washer and hanger Bolt head always on the eccentric washer side Pretightening 400 Nm Marking for angle tightening Use Torque wrench Angle tightening 120 Visual inspection Use impact wrench or extend lever to 2 5 m Semi trailer tilt angle Ride heights Adjust the ride height of the air suspension axles to the permissible range indicated in the corresponding SAF documents With single axles allow for a minimum suspension travel of 60 mm For trailers with multiple axles allow for a minimum suspension travel of 70 mm Exception For multi axle trailers with lift axles the minimum suspension travel at the lift axle should not be less than 100 mm in order to ensure an adequate ground clearance SV11405MS Edition 12 2006 Last updated 2006 10 23 Amendments and errors reserved SAF SV11405MS Edition 12 2006 Last updated 2006 10 23 Amendments and errors reserved SAF Tyre changing on fully loaded trailer with INTRA axle Jack positioning points Adjustment of the
15. flange 1 Pretighten to 50 Nm diagonally Torx bolt E24 M18x1 5 2 Tighten by a further 90 diagonally check torque 450 Nm INTEGRAL brake disc 1 Pretighten to 30 Nm diagonally DSK bolt SW 13 M12x1 5 2 Tighten by a further 90 diagonally check torque 130 Nm Brake calliper to axle beam 6 bolts Hex head bolt M16x1 5 290 Nm 1 Pretighten from inside to outside 120 Nm Brake calliper to axle beam 4 bolts 2 Check the pretightening of all the bolts Retighten if necessary to 120 Nm Multispline head screw M18x1 5 3 Final tightening to 450 30 Nm or 120 Nm 60 4 corners of the multispline head screw Tighten alternately and uniformly in two steps Brake chamber hex nut M16x1 5 1 Pretighten 120 Nm 2 Final torque 210 Nm check torque 210 Nm Guide pins on brake calliper 290 Nm 340 20 Nm Pad retainer clamp cotter pin 30215 Nm SK RS RZ 9019 9022 11019 11222 Wheel bearing backlash wheel bearing grease Adjustment of the wheel bearing backlash is not necessary Change the wheel bearing grease after 500 000 km or 50 months When changing the grease inspect the taper roller bearings for serviceability Install a new O ring and fit the wheel cap Note during brake repairs Carry out a visual inspection of the seals on the brake calliper Do not dismantle the wheel bearing unit Do not use high pressure cleaners or liquid cleaners on the brake disc and hub unit Clean any residues of grease
16. from the axle stub end and repack with grease Tighten axle nuts On left hand side in direction of travel Left hand thread On right hand side in direction of travel Right hand thread Tightening torque 900 Nm Each hub unit must be rotated smoothly at least twice while tightening the bolts Marking of the nuts with left hand thread Milled groove on outside of hexagon Max permissible axial backlash of hub unit 0 0 20 mm Caution Failure to observe these instructions may result in an accident hazard Brake pads and or brake discs that are worn beyond their wear limit result in a deterioration or even complete failure of the braking effect Tightening torque Wrench size Hexagon Nm WAF Outer Inner Guide bearings on brake calliper 2 carriage bolts 290 14 X M16 x 1 5 10 9 Diaphragm combination cylinder 2 hex nuts 210 24 M16 x 1 5 Brake calliper attachment to axle beam M16 x 1 5 x 55 SV11405MS Edition 12 2006 Last updated 2006 10 23 Amendments and errors reserved SAF SV11405MS Edition 12 2006 Last updated 2006 12 07 Amendments and errors reserved SAF SKNLB SKVLB 9019 9022 BINL9 19 BINL9 22 BIVL9 19 BIVL9 22 Preconditions The track measurement must be carried out with the trailer in unloaded state On trailers with air suspension the trailer must be adjusted to ride height 500 1000 line Measuring line Measuring
17. her check after every 6 months Spring eye bolt Inspection torque 1 200 Nm Shock absorber bolt Inspection torque 400 Nm SK RB RLB SKNLB SKVLB 9019 9022 9 19 BI9 22 BIL9 19 BIL9 22 BINL9 19 BINL9 22 BIVL9 19 BIVL9 22 519 19 519 22 219 19 719 22 5111 22 2111 19 2111 22 Operating media specifications Assembly tools SAF Part No Greases for repairs and maintenance are included in all repair kits For axle stub end SAF mounting paste SAF Part No 5 387 0021 01 Axle nut wrench Puller for hub unit 3 4 socket for Torx E24 Universal disc brake tool case Wrench for DSK bolts 12 point socket WAF 24 in 3 4 drive 17 mm socket SK RS RZ 9019 9022 11019 11222 4 434 3828 00 4 434 3822 00 4 434 3824 00 3 434 3328 00 4 434 3831 00 4 434 3859 00 Commercially available Operating media specifications Assembly tools SAF Part No For wheel bearings SAF Part No 5 387 0011 05 For rubber boots and brass bushes SAF Part No 5 387 0016 00 For rubber guide sleeve SAF Part No 5 387 0017 01 For axle stub end SAF Part No 5 387 0021 01 SAF mounting paste Axle nut wrench Puller for wheel hub Lever for wheel cap Universal disc brake tool case 17 mm socket 1 012 0024 00 4 434 3822 00 1 434 1041 00 3 434 3328 00 Commercially available SV11405MS Edition 12 2006 Last updated 2006 12 01 Amendments and errors reserved SAF SV11405MS Edit
18. ion 12 2006 Last updated 2006 10 23 Amendments and errors reserved SAF SK RB RLB SKNLB SKVLB 9019 9022 BI9 19 BI9 22 BIL9 19 BIL9 22 BINL9 19 BINL9 22 BIVL9 19 BIVL9 22 SI9 19 519 22 219 19 219 22 5111 22 2111 19 2111 22 Hub Unit maintenance free At each brake disc change inspect for signs of wear e g escaping grease Note during brake repairs Carry out a visual inspection of the seals on the brake calliper Do not use high pressure cleaners or liquid cleaners on the brake disc and hub unit Clean any residues of grease from the axle stub end and repack with grease Tighten axle nuts On left hand side in direction of travel Left hand thread On right hand side in direction of travel Right hand thread Pretightening 150 Nm then turn the hub unit slowly by 5 revolutions Final tightening Retighten by 1 increment 30 Marking of the nuts with left hand thread Groove on outer edge Max permissible axial backlash of hub unit 0 0 20 mm Caution Failure to observe these instructions may result in an accident hazard Brake pads and or brake discs that are worn beyond their wear limit result in a deterioration or even complete failure of the braking effect Caution The bolts listed below must be replaced during service and repair work The bolts must not be oiled or greased for installation Tighten the bolts with a torque wrench Tightening torques Nm Knorr Bolts Wheel
19. ndments and errors reserved SAF SV11405MS Edition 12 2006 Last updated 2006 10 23 Amendments and errors reserved SAF Knorr disc brake Type SN7 SK RB RLB 9022 K KI SK RS RZ 9022 11222K Knorr disc brake Type SN6 SK RB RLB 9019 K KI Checking the pad wear SK RS RZ 9019 11019 K BI9 19K BIL9 19K BINL9 19K BIVL9 19K 919 19 Z19 19K Z111 19K 4 4 l O Inspect the brake pads and brake discs and replace 16 if necessary Knorr disc brake Type SK7 SK RB RLB 9022 01 Checking the pad wear Wear inspection At the long guide pin At the short guide pin E 777 LA q A N NN BI9 22K01 BIL9 22K01 BINL9 22K01 BIVL9 22K01 919 22 01 719 22 01 9111 22 01 Z111 22K01 SB7 SK7 115mm gt 63mm m HUR 7 LIE Jo eu y Inspect the brake pads and brake discs and replace if necessary if the dimensions are larger than shown in the table above N N AN SV11405MS Edition 12 2006 Last updated 2006 10 23 Amendments and errors reserved SAF SV11405MS Edition 12 2006 Last updated 2006 12 01 Amendments and errors reserved SAF Wabco disc brake Type PAN 22 1 SK RB RLB 9022 W WI SK RS RZ 9022 11222W Wabco disc brake Type PAN 19 1 SK RB RLB 9019 W WI SK RS RZ 9019 11019W Wabco disc brake Type Type PAN 22 1
20. own the valve lever has to be turned through 1809 For this the valve lever has to be disconnected The ride height is set by adjusting the adjustment pipe in the fulcrums and by turning the lock nuts The adjustment must be carried out with the trailer standing on level ground It can be carried out with the trailer either empty or loaded Note For a final check the air suspension system should be lowered to the suspension stop or raised to the limit shock absorbers stop ropes air bag length During this process the specified angle between valve lever and adjustment pipe must not be exceeded in order that the valve lever does not move in the wrong direction SV11405MS Edition 12 2006 Last updated 2006 10 23 Amendments and errors reserved SAF SV11405MS Edition 12 2006 Last updated 2006 10 23 Amendments and errors reserved SAF In order to compensate for production tolerances an axle alignment and if necessary a correction should be carried out The maximum permissible deviations tolerances of the alignment values are specified by the tyre manufacturer The maximum possible wheelbase correction per axle is 6 mm Conventional adjustment s KONIGSZAPFEN c KING PIN FAHRTRICHTUNG FRONT Determine the lengths of the diagonals A C and A for the middle axle reference axle by comparison measurements observing the tolerances Check the wheelbases B C and E F for
21. the front axle and C D and F G for the rear axle and correct if necessary observing the tolerances Optical adjustment Observe the operating and setting instructions of the measuring system manufacturer 1 Measured value B1 r3 Measured value A1 1 E c e Calculation of the toe in and 3 toe out values A1 B1 mm Measure line 5 7 E tj qq A m FAHRTRICHTUNG FRONT S positive value Toe in S negative value Toe out Laser with bracket Notes 1 In order to avoid tyre wear we recommend that an axle alignment is performed at regular intervals 2 We recommend the use of an optical measuring system for carrying out the axle alignment 3 For alignment only the centres of the middle of the wheel cap or the middle of the axle stub end are of interest as reference points 4 Possible causes of deviations in the axle alignment are Loose U bolts Wear of the spring guide bearing e Deformation of the axle assembly components due to improper use VS p m s sioua pue sjusuipueuly 10 21 9002 1se1 900Z Z1 uonip3 SINSOVLLAS P un P P um lt V11405MS Edition 12 2006 Last updated 2006 12 07 Amendments and errors reserved SAF BA11405 001 01 NonStopService 24 Im
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