Steering - Hansen Web Design
Contents
1. Steering gear housing I Iss C Socket wrench or adapter cold roll stock S shaft bushing Oil seal bottomed in housing counterbore A 22470 Location and installation of lever seal Fig 14 ae shaft oil c Assemble housing upper cover with Shims and make proper bearing ad justments d Install lever shaft in housing and assembly housing side cover first loosening the adjusting screw Fig 8 Draw side cover screws tight e Adjust lever shaft stud in cam groove for backlash and lock adjustment with lock nut f Assemble jacket tube with clamp col lar and tighten clamp g Install steering wheel horn cable and button PRINTED IN UNITED STATES OF AMERICA L LINE MOTOR TRUCK SERVICE MANUAL Section A age Drag Link Figs 12 13 14 Front adjusting plug Ball seat Cotter pin Ball seat Rear plug Cotter pin Drag link Spring Rear adjusting plug A 22891 Front plug Fig 12 Rear adjusting plug Front adjusting plug Ball seat Rear plug JN 3 Ball seat Front plug Drag link KA Cotte pin A 22915 Spring Fig 13 This type of drag link requires very little care other than periodical lubrication andocca sional inspection to make sure that it is prop erly adjusted Figs 12 and 13 Adjustmient is made by removing cotter pin and turning adjusting plug in the desired direction To adjust for wear turn adjusting p2. 003 and 010 thickness Fig 5 d Clip and remove a thin shim or more as required and draw cover down tight against shims e Testas outlined in paragraph b and if necessary removeor replace shims until adjustment is correct 2 ADJUST LEVER SHAFT STUDS IN CAM GROOVE FOR BACKLASH a Backlash atthis point shows up as end play of lever shaft also as backlash at steering wheel and at ball on steer ing arm b The groove is purposely cut deeper in ends of cam thaninmid position This produces a high range through mid position and makes grooves narrower through this range This permits take up of backlash in mid position after normal wear of groove without causing a bind in ends Fig 3 c Adjustto this mid position high range Do not adjust in end positions Play in end position is not objectionable d Tighten side cover adjusting screw 10 until a very light drag is felt through the mid position high range when turning steering wheel slowly L LINE MOTOR TRUCK SERVICE MANUAL KRK 7 x 9 nut ac cover WN Fig 4 Illustrates location of adjusting screw and locknut Jacket tube and upper cover assembly Filler plug Adjusting Lock nut under upper on cam 003 and 010 thickness Fig 5 Showing location of shims housing cover used to adjust end play Shims are of 002 from extreme to extreme position Fig 4 e IMPORTANT Steering gear must not
3. mT Adjusting screw Gasket w Lever shaft A A A 22480 of housing side gear cover revealing lever shaft GD L Fig 9 Removal of jacket tube and e Connect horn wire at bottom of steer ing gear DISASSEMBLING STEERING GEAR a b c d e Remove horn button cable and steer ing wheel Remove housing side gear cover and pull out lever shaft Fig 8 Loosen clamp collar and remove Jacket tube and housing upper cover Fig 9 Remove cam and tube assembly com plete with bearings from the housing Fig 10 Remove lever shaft oil seal and clean the counterbore in the gear housing REASSEMBLING STEERING GEAR a b Install new lever shaft oil seal Fig 11 Position oil seal in housing with side stamped Fluid Side toward bottom of counterbore Using a hammer tap lightly on the end of a socket wrench or adapter cold rolled stock having a slightly smaller outside diameter than the oil seal It is important that the seal bottoms in the counterbore of housing Place cam and tube assembly with bearings in the housing Fig 10 u Re i A Aa F S We Z t X 7 S ae Ta ER 2 W upper hous ing cover assembly Donated by John amp Susan Hansen For Personal Use Only STEERING GEAR assembly End cover and i E tube assembly Pie 388 222242 Fig 10 Removing cam and tube assembly with bearings
4. Donated by John amp Susan Hansen For Personal Use Only STEERING GEAR L LINE MOTOR TRUCK SERVICE MANUAL e age STEERING GROUP The following list shows the L line truck models and their corresponding steering gear models Specifications of the individual steering gear models will be found on specifications page l STEERING GEAR STEERING GEAR TRUCK MODELS MODELS TRUCK MODELS MODELS Delil r rers riasy iier kaei TA 12 Lelis peda aoaea e a a TA 61 ael lt a 8 Be R 6 ee ee ee ae TA 12 Peel OS ge as ee oh a ee ee ee eG TA 6 bY SO 2 0 a ee TA 14 LC 180 ee ee ee ee ee a N TA 61 Died REEERE A ee ee ee eS T 14 1190s 6 6 6 eR Cae eS RS Se A T 66 Bala 642 w amp 4 i ee ae oh ew aS T 14 ge eer ee ae ae ee ee ee ee T 66 ee 1 ne ie ee Se oe ee ee eR TA 14 dil OSs oo ee ew eS Oe ee He Os ES T 66 S R ee ee ee ee ee ee TA 14 e R ae ae ae ae ee ee eae T 66 LM I50 e oad oe owe OS OT ow Oe ae TA 14 LOTOO A N ft eke EES SS T Gel OO oy ne ew Oe Oe 2 ee De TA 54 E D A L 1 win ee ee eae Oe ae eS TA 66 L 163 ee ee Poa ee ews TA 54 L 200 E em RETER RE HS TA 66 S E 1 TTT TA 54 eee ae ee ee ee ee TA 66 AE ne ee ee ee er TA 54 Lam T L a ew oS 6 ue oo ee ae Ow TA 66 Po 0 er a ee ee ae ee TA 54 LO 200 65 kod 6 eRe ee eS aS el s 6 www 6 Ee oe od we as oS TA 54 ee ea ee rr a en ae ae eee ee TA 70 a E a ee a eee ee ee ee TA 54 sO ge EEE E EEE E E E TA 70 E KL Gs 6 eS 6S we OK De De eG TA 61 OT A eee ee ee ee ae ee ee ee S adhe
5. ECIFICATIONS Ross Ross 17 15 17 20 18 20 20 18 20 22 18 22 9980 1 1230 TA 66 TA 70 Ross 23 4 19 5 23 4 23 4 19 5 23 4 1 4975 106 ltt 1 3 4 98eg suotpeotjroads Z AL m 9 lal gt Q 725 gt Pa IVANVW JOMAYAS 2 3191 YOLOW ANITI UVaAD ONI 9 04 0 15 Donated by John amp Susan Hansen For Personal Use Only Donated by John amp Susan Hansen For Personal Use Only AIA STEERING GEARS L LINE MOTOR TRUCK SERVICE MANUAL Section A NIV Page 1l TA 12 T 14 TA 14 TA 54 TA 61 T 66 TA 66 TA 70 La 4 lt j 1 Oil filler plug AS N gt 4 Upper cover RAN ra oa Tag Cam Oil ock washer 7 5 Shims Upper 7 N Levershaft seal cover ma l o a 4 A 3 X t Oil filler plug Nut and T Cap Screws s f Studs l lock ian Screws L Cam e tapered Mac 5 a ei Shims L E taan 10 Lock nut 2 9 l Arm Adjusting 10 A wf pe screw kg tapered End cover and SP C x tube assembly A 22452 1 haf End cover and ever shait tube assembly A 22479 Fig Models TA 12 T I4 TA 14 Construction See Figs 1 2 3 L Line Trucks are equipped with Ross semi reversible cam and twin lever steering gears The twin lever construction is shown in Figs 1 and 2 There are two types of twin lever gears used l Twin lever with sliding studs the studs are riveted in the lever so that the studs have a sl
6. bind any position Only a very slight drag should be felt A closer adjust ment will not correct steering loose ness caused by wear in other steering gear members but will damage parts and impair operation f When proper adjustment has been made tighten lock nut 9 and then give gear a final test g Make sure steering gear arm is tight on splined lever shaft and that lock washer and nut are tight also UN INTERNATIONAL 3 STEERING COLUMN ALIGNMENT a After adjustments have been made and lock screw tightened turn steering wheel to see ifany stiffness exists If so steering gear has been adjusted too tight or steering column is out of alignment Misalignment of the column places a bend in the column conse quently the wheel tube must undergo reverse bending stresses during each revolution This isa serious condition and mustbe avoided THE STEERING COLUMN MUST NOT BE SPRUNG IN ANY DIRECTION 4 STEERING GEAR CONNECTION WITH FRONT WHEELS a The steering gear should be connected to the front wheels so as to obtain as nearly as possible the specified turn ing radius on bothleft and right turns This is accomplished by turning the steering wheel as far to the right as possible then rotate the wheel in the opposite direction as far as possible and note the total number of turns Turn the wheel back just one half of this total movement thus placing the gear in the mid position With the front wheels in p
7. eee oe PERS eH Ae ees TA 54 GF s220 arrika re reuns nnne Fell aanere ee eek HE TA 6 D TA 6 amp oe a oe ee T ee E TA 70 5 E Sa bee wee oe Be ee eG TA 6 lie 1 1 bee ek eee REDO TEER ES 4 183 ee AT ee ee eee TA 61 LPF O0G amp oe a OO he RE ew SE INDEX Page WECTIICAtIONS essnee nr Se ES EWA REGS EERE EER SE REAR EES Gees l SK e ITH l POUSTTUCION 44 66 4685 imas rerus saaana a a sassembling steering gear e RRR RR ae RRR RRR RR RR R RRR RR RER HTH DOS RE Pee TEE seren HER OSS SOS OES EE T R SEER R T E RE E a astalling Steering WHEEL lt ega E R EEE RRR TS HEE RRR ERER R RRR RR 6 acket tube Dea HE ss RTE E RTE FOO RER RE RRR R RE RE E RR ER K R OE R RE assembling steering gear cee evee ee ee eee ee ee ee ee ee 4 emoving Steering Wheel os enc ae hee SEKE SHOR ED ER TERED G HH DS eke eS 8 teering column alignment sese sse saarea ae tra tnan KR SAD DED OED OE wee HS teering gear connection with front wheelS 2c cc cer crcve sever rsvracssves LM LM L LP bh OP Po PRINTED iN UNITED STATES OF AMERICA Donated by John amp Susan Hansen For Personal Use Only VYOINAWY 20 SALVIS OQALINA Ni QJLNIYd STEERING GEAR MODELS oteering Gears Make es o D e F gt Lever Shaft Diameter Pitman Travel Available gt gt 9 9 Steering Post Diameter Steering Jacket Diameter Donated by John amp Susan Hansen For Personal Use Only STEERING GEAR SP
8. iding contact with the cam Fig 1 2 Twin lever with rolling studs the studs are mounted in the lever with tapered rol ler bearings so that the studs have a roll ing contact on the cam Fig 2 Both studs of the twin lever gear engage the cam for normal straight ahead driving As the steering action moves away from Lhe normal driving position into the parking range one of the studs disengages the cam The effective leverage of this single stud increases so rap idly however that in full parking the leverage is 45 percent greater than witha single lever type steering gear This is due largely to the fact that because of the twin levers the steer ing arm is shorter and therefore has a full 100 degrees of travel compared to 76 degrees in a single lever unit Actually the driver has at his disposal a dual ratio gear which auto matically changes from one ratio to another to suit the requirements of steering stability at high speeds and easy wheel turn for sharp PRINTED IN UNITED STATES OF AMERICA Fig 2 Models TA 54 TA 61 7 66 TA 66 TA 70 NOTE VARIATION PATH OF STUDS SHALLOWER AT A amp b J p a PERMISSIBLE LASH IN E POSITIONS aie OFF T t MID POSITION GEAR Studs A amp B SHOWN AT MID POSITION OF TRAVEL a shows VARIOUS POSITIONS OF STUD A ON TURNS b shows VARIOUS POSITIONS OF STUD B ON TURNS IMPORTANT ADJUST THRU THE MID POSITION Fig 3 A 23440 turns in par
9. ig 7 Models TA 61 T 66 TA 66 TA 70 LEGEND for Figs 6 and 7 1 Horncableassembly 7 Steering wheel 2 Steering tube 8 Horn button 3 Jacket tube 9 Horn contact cap 4 Bearing assembly 10 Steering wheel nut 5 Spring seat ll Base plate assembly 6 Spring 12 Horn button spring Donated by John amp Susan Hansen For Personal Use Only STEERING GEAR Section A Page 4 L LINE MOTOR TRUCK SERVICE MANUAL b d 4 5 Fig 8 Removal palm of hand or vacuum cup holding steering wheel stationary Remove contact cap and spring Remove the three screws holding the horn button retainer base plate 11 and remove this plate and horn wire Remove steering wheel nut 10 and take offsteering wheelusinga suitable puller INSTALL STEERING WHEEL in correct position on shaft Wheel should be installed so that spokes are in shape of a Y when seated in driver s seat and with front wheels straight ahead This will per mitdriver to readinstruments through the top of steering wheel Place Install steering wheel nut 10 and tighten securely Insert horn wire and thread through hole in cover plateat bottom of steer ing gear housing Attach horn button retainer base plate 11 with three screws Install contact plates spring and horn button Horn button should be pressed down and turned until it locks in the rubber retainers on retainer base plate using vacuum cups or palm of hand
10. king A valuable safety factor isa lessening of the tendency to over steer on curves and when passing other vehicles at high speed See Fig 3 Adjustments NOTE The basic design of the steering gears used in these trucks is similar and the method of servicing applies generally to all units used For illustrative purposes assem blies of the more common type are used Donated by John amp Susan Hansen For Personal Use Only STEERING GEARS Section A Page 2 Except for position of the lever shaft in the housing the steering gear details are similar and are serviced in the same manner When making adjustments free the steer ing gear of all load preferably by disconnect ing the drag link from the steering arm and loosen instrument panel bracket clamp on steering gear jacket tube If the ball thrust bearings on the cam must be adjusted make adjustment 1 before making side adjustment to lever shaft studs in cam groove 2 1 ADJUSTMENT OF BALL THRUST BEAR INGS ON CAM a Before making this adjustment loosen the housing side cover adjusting screw 9 10 to free the studs in the cam groove Fig 4 b Adjustment should be made so there is a very slight drag but not so much that steering wheel cannot be turned from extreme to extreme by lightly gripping rim with thumb and fore finger c Unscrewthe four screws 3 and raise the housing upper cover 4 to permit removal of shims 5 Shims are of 002
11. lug in until it is tight then back off to first cotter pin hole Insert a new cotter pin of the correct size and bend ends over securely Drag link should not be adjusted too tight other wise steering will be affected The springis merely to accommodate wear and is not intended to act as a cushion against shock Fig 14 shows details of steering gear relay link and drag link used on L 190 series trucks and up Relay lever bracket Lubricators Steering knuckle Steering arm a Fig IH Steering gear linkage to front axle for models L 90 series and up Donated by John amp Susan Hansen For Personal Use Only STEERING GEAR A L LINE MOTOR TRUCK SERVICE MANUAL age Steering Jacket Tube Bearing A ball type steering jacket bearing is used improving steering gear performance and ease of handling Fig 15 illustrates this construc tion Fig 15 Showing location of jacket tube bearing Special service tools SE 1164 are avail able for this bearing and are to be used for installation of a new bearing see Fig 16 a Arbor SE 1164 1 Adapter SE 1164 2 Jacket tube A 22890 Fig 16 Installation of steering gear jacket tube bearing
12. osition for straight ahead driving it should then be pos sible to connect the drag link to the ball on the end of the steering gear arm without moving the gear to any appreciable extent If this cannot be done remove the arm from the steer ing gear using a Suitable puller and place it on the splined shaft in the proper position Otherwise it will not permit the front wheels to swing equal ly to theleft and right Check steering knuckle stop on front axle to make sure that there is proper clearance for the tire when turning at maximum angle Axle stops should also be set out sufficiently to prevent steering gear from bottoming that is to stop the gear short of its absolute limit of travel If the gear is permitted to bottom damage to internal parts will occur Check to see if axle stops are set to do this on both left and right turns See that steering gear housing is filled with lubricant as recom mended in Lubrication Section 5 TO REMOVE STEERING WHEEL Figs 6 and 7 a Disconnect horn wire at bottom of steering gear b Remove horn button 8 by pressing down and turning to right or left with PRINTED IN UNITED STATES OF AMERICA Donated by John amp Susan Hansen For Personal Use Only L LINE MOTOR TRUCK SERVICE MANUAL STEERING GEARS Section A Page 3 6 10 9 1 3 L 2 N Y Q Tr A 21734 Fig 6 Models TA 12 T I4 TA 14 TA 54 6 9 5 12 4 11 3 2 d 10 A 21736 F
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