TMC TRAILER AXLE SERVICE MANUAL DRUM BRAKE AXLES
Contents
1. Item Model PFRD 225 167 Model PFRD 245 167 Description Part Number Part Number 1 810146 804345 Hub cap grease 810176 Hub cap oil 2 810147 Hub cap gasket 3 9HBM08125020 Hub cap stud M8 x 20 long 4 9SWMO8 Spring washer 5 810124 800110 Axle spindle adjusting nut 6 810123 800111 Axle spindle lock washer 7 810125 Axle spindle lock nut 9 81HM212049 800064 Outer bearing cone 10 810110 810153 Brake drum 5 spoke spider 420x180 810160 810168 Brake drum 10 stud x 285 pcd 420x180 810158 810164 Brake drum 10 stud x 335 pcd 420x180 11 810108 810151 Hub assembly 5 spoke spider 810102 810166 Hub assembly 10 x 285 ISO steel 810156 810162 Hub assembly 10 x 335 ISO steel 8106395 Hub assembly 10 x 285 ISO aluminium 8103416 Hub assembly 10 x 335 ISO aluminium 12 810094 810094 Cam roller 13 800018 800018 Cam roller retainer 810093 810093 Cam roller retainer bolt on 14 800016 800016 Brake return spring 15 800002 800002 Anchor pin bush 16 800015 800015 Brake retainer spring anchor end 17 800167 800167 Brake shoe lined Q brake 810170 810170 Brake shoe lined P brake 18 810171 810171 Brake lining set inc rivets 19 800013 800013 Brake return spring retainer pin 20 800014 800014 Anchor pin Q brake 810092 810092 Anchor pin P brake bolt on 21 80002. TAAL TMC Australia Pty Ltd TMC Trailer Axle Service Manual Drum Brakes TMC TRAILER AXLE SERVICE MANUAL DRUM BRAKE AXLES TMC Australia Pty Ltd Telephone 61 3 8786 3688 78 Star Crescent Facsimile 61 3 8786 3699 Hallam E Mail info tmcaus com au Victoria 3803 Australia www tmcaustralia com au We Engineer Quality and Performance 2008 A member of The rumas Group Page 1 of 13 TAAL TMC Australia Pty Ltd TMC Trailer Axle Service Manual Drum Brakes RECOMMENDED SERVICE SCHEDULE First Service 500 km or on Delivery Check torque settings of all wheel nuts On delivery After all wheel changes After first 5000 Km Check and adjust all wheel bearings Every 5 000 km Check and adjust the brakes check brake linings for wear Every 25 000 km Lubricate slack adjusters and camshaft bushings using an EP2 type grease or equivalent With the axle end lifted rotate the wheels and determine if the wheel bearing s need adjustment Re adjust the wheel bearings as necessary Every 100 000 km Remove the hubcaps and inspect the wheel bearings and lubricant Replace the lubricant if it appears badly contaminated Re adjust the wheel bearings and re torque the axle lock nut Replace the hubcaps and ensure the correct amount of lubricant is in the hub end Check that the hubcap gasket is not damaged Replace as necessary Check the axle for b
3. FILL THE GREASE IN HUB CAVITY TO THIS LINE BEARING CUP _ BEARING CUP gt Dr J P Ta s 3 IZA X Oil Filled Hubs 1 Remove the rubber plug or screwed plug from the hubcap so that the oil can be added to the hub 2 Fill the hub with oil to the full level on the sight glass in the hubcap window 3 Allow time for the oil to flow through the wheel bearings Top up the hub with oil to the full mark Caution Do not overfill the hub 4 Refit the rubber plug or screwed plug back into the hubcap Check that the plug seals OIL FILLER PLUG OIL FILL LEVEL OIL HUBCAP 6 BOLT TYPE OIL HUBCAP SCREW IN TYPE 2008 A member of The rumasj Group Page 7 of 13 TAAL TMC Australia Pty Ltd TMC Trailer Axle Service Manual Drum Brakes WHEEL BEARING LUBRICANTS Grease Mobil HP or an approved equivalent grease Oil Mobil 85W 140 or an approved equivalent oil WELDING TO TMC AXLE BEAMS Recommended welding procedures 1 Before any welding is conducted on the axle tube the axle tube must be pre heated to 100 150 C locally at the area to which the welding is to be done Caution Do not apply excessive heat to the axle tube 2 All welding is to be applied to the axle tube as near as possible to the axle s neutral axis Do not weld circumferentially around the axle tube 3 It is recommended that all welds are applied using small multiple fillet weld runs to achie
4. va f eat a N x Pa USE THE AXLE ADJUSTING NUT AS BEARING TAB WASHER A GUIDE SLACKEN BACK TO FIRST AVAILABLE SPLIT PIN HOLE CHECK WHEEL BEARING END FLOAT IS 0 08mm TO 0 20mm RE ADJUST IF NECESSARY 2008 A member of The rumasj Group Page 5 of 13 TAAL TMC Australia Pty Ltd TMC Trailer Axle Service Manual Drum Brakes BRAKE ADJUSTMENT MANUAL SLACK ADJUSTERS C Cam brakes are adjusted by the manual slack adjusters fitted to the camshafts on the axle 1 With the brakes released adjust the slack adjuster until the brake linings contact the brake drum This is done by rotating the 19mm hexagonal nut clockwise 2 Adjust the 19mm hexagonal nut back one half turn or until the hub rotates freely with no brake drag evident 3 Finally check that with the brakes released and applied that the angle between the brake chamber push rod and slack adjuster is greater that 90 degrees The angle can be adjusted by screwing the push rod clevis backwards or forwards along the push rod thread to achieve the correct angle When finished always check that the push rod clevises lock nut is tightened Released Applied aa _ _ Bo a A Tm 19mm Hex adjusting nut BRAKE ADJUSTMENT MANUAL SLACK ADJUSTER BRAKE ADJUSTMENT AUTOMATIC SLACK ADJUSTERS S cam brakes fitted with automatic slack adjusters should require n
5. 81HM218248 800064 Inner bearing cone 37 810122 810122 Camshaft washer 38 810121 810121 Camshaft circlip 39 810145 810145 Wheel nut M22 ISO 40 810091 810091 Enclosed cam tube assembly 41 810087 810087 Enclosed cam tube support plate 42 810081 810081 Enclosed cam tube seal outer 43 810082 810082 Enclosed cam tube seal inner 810169 810169 ABS pole wheel 100 tooth 2008 A member of The AE rumas Group Page 13 of 13
6. conelock nut assy 34 UNF x 24 810169 810169 ABS pole wheel 100 tooth 2008 A member of The AErumas Group Page 11 of 13 TMC TMC Australia Pty Ltd TMC Trailer Axle Service Manual Drum Brakes SPARE PARTS AXLE MODELS PFRD 225 138 and PFRD 245 138 Axles with 335 diameter x 210 wide brakes 13 18 x 8 25 20 PFRD 2002 138 13 PFRD 225 PFRD 245 2008 A member of The rumas Group Page 12 of 13 TMC TMC Australia Pty Ltd TMC Trailer Axle Service Manual Drum Brakes SPARE PARTS AXLE MODELS PFRD 225 138 and PFRD 245 138 Axles with 335 diameter x 210 wide brakes 13 18 x 8 25 Item Model PFRD 225 138 Model PFRD 245 138 Description Part Number Part Number 1 810146 804345 Hub cap grease 810176 Hub cap oil 2 810147 Hub cap gasket 3 9HBM08125020 Hub cap stud M8 x 20 long 4 9SWMO08 Spring washer 5 810124 800110 Axle spind
7. 03 800003 Dust cover 22 9HBMO08 125025 9HBM08 125025 Dust cover bolt M8 x 25 long 23 Refer TMC Refer TMC Axle beam assembly 24 810112 810112 Wheel stud spider hub 810225 810225 Wheel stud M22 ISO x 115mm long 810144 810144 Wheel stud M22 ISO x 100mm short 25 81HM212049 800065 Outer bearing cup 26 81HM218210 800065 Inner bearing cup 27 810135 800723 Hub seal 28 800052 800052 Slack adjuster 29 800001 800001 Inner cam support bushing 30 9HBM10150030 9HBM10150030 Bolt M10 x 30 long 31 800005 800005 Outer cam bushing 32 800032 800032 Camshaft seal 33 810122 810122 Camshaft washer 1 2 34 800034 800034 Circlip 1 1 2 35 810117 606L 810117 606L Camshaft 37 spline left hand 810117 606R 810117 606R Camshaft 37 spline right hand 36 81HM218248 800064 Inner bearing cone 37 810122 810122 Camshaft washer 1 14 38 810121 810121 Circlip 1 4 39 810113 810113 Wheel nut spider 810145 810145 Wheel nut M22 ISO 40 810206 810206 Enclosed cam tube assembly 41 810201 810201 Enclosed cam tube support plate 2008 A member of The rumas Group Page 10 of 13 TMC TMC Australia Pty Ltd TMC Trailer Axle Service Manual Drum Brakes Item Model PFRD 225 167 Model PFRD 245 167 Description Part Number Part Number 42 810208 810208 Enclosed cam tube seal outer 43 810207 810207 Enclosed cam tube seal inner 44 810114 810114 Hub drum bolt and
8. AL TMC Australia Pty Ltd TMC Trailer Axle Service Manual Drum Brakes WHEEL BEARING ADJUSTMENT PROCEDURE Castellated Axle Nut with Split Pin TP Parallel Wheel Bearings It is recommended that the wheel bearings in new axles or whenever the wheel bearings are replaced in service are adjusted after the first 5000 km The wheel bearings should then be adjusted at 100 000 km intervals for the axle s service life These are the minimum recommended service requirements dependent on service conditions more frequent service and maintenance schedules may be required for correct operation of the trailer axle Recommended wheel bearing adjustment procedure 1 Ensure that the hub rotates freely in both directions If any brake drag binding is felt temporally back off the brake adjustment to ensure free rotation of the hub 2 Rotate the hub in both directions and at the same time tighten the axle adjusting nut castellated until a torque setting of 150 180 Nm is reached 3 Then back off the axle adjusting nut approximately one eighth of a turn using the axle adjusting nut as a guide Refit the axle cotter split pin and lock in place Take care that the wheel bearing adjustment is not disturbed Check the bearing end float is 0 08mm to 0 20mm Finally check that the hub rotates freely If it does not rotate freely it may be necessary to redo the wheel bearing adjustment procedure If Necessary now re adjust the brakes
9. dent on the service conditions more frequent service and maintenance schedules may be required for correct operation of the trailer axle Recommended wheel bearing adjustment procedure 1 Ensure that the hub rotates freely in both directions If any brake drag binding is felt temporally back off the brake adjustment to ensure free rotation of the hub 2 Rotate the hub in both directions and at the same time tighten the wheel bearing adjusting nut until a torque setting of 150 180 Nm is reached 3 Then back off the adjusting nut six 6 holes use the axle lock washer as a guide Refit the axle lock washer taking care that the wheel bearing adjustment is not disturbed Fit the axle locknut and tighten to a torque of 290 320 Nm Check the bearing end float is 0 08mm to 0 20mm Finally check that the hub rotates freely If it does not rotate freely it may be necessary to redo the wheel bearing adjustment procedure If Necessary now re adjust the brakes USE THE LOCK WASHER LOCK WASHER AS A GUIDE SLACKEN BACK BY 6 HOLES CHECK WHEEL BEARING END FLOAT IS 0 08mm TO 0 20mm RE ADJUST IF NECESSARY 2008 A member of The rumasj Group Page 3 of 13 TAAL TMC Australia Pty Ltd TMC Trailer Axle Service Manual Drum Brakes WHEEL BEARING ADJUSTMENT CHECKING PROCEDURE Double Axle Lock Nuts and Lock Washer TN Preset Wheel Bearings It is recommended that the wheel bearing in new axles or wheneve
10. le adjusting nut 6 810123 800111 Axle spindle lock washer 7 810125 Axle spindle lock nut 9 81HM212049 800064 Outer bearing cone 10 810103 810103 Brake drum 8 stud x 275 pcd 335x210 810185 Brake drum 10 stud x 225 ped 335x210 11 810177 810179 Hub assembly 8 x 275 ISO steel 810188 Hub assembly 10 x 225 ISO steel 8106434 Hub assembly 8 x 275 ISO aluminium 12 810094 810094 Cam roller 13 800018 800018 Cam roller retainer 810093 810093 Cam roller retainer bolt on 14 810101 810101 Brake return spring 15 800002 800002 Anchor pin bush 17 810095 810095 Brake shoe lined P brake 18 810096 810097 810096 810097 Brake lining set inc rivets 19 800013 800013 Brake return spring retainer pin 20 810092 810092 Anchor pin P brake bolt on 21 810084 810084 Dust cover 22 9HBM08125025 9HBM08125025 Dust cover bolt M8 x 25 long 23 Refer TMC Refer TMC Axle beam assembly 24 810225 810225 Wheel stud M22 ISO x 115mm long 810144 810144 Wheel stud M22 ISO x 100mm short 25 81HM212011 800065 Outer bearing cup 26 81HM218212 800065 Inner bearing cup 27 810135 800723 Hub seal 28 810120 810120 Slack adjuster 29 800001 800001 Inner cam support bushing 30 9HBM10150030 9HBM10150030 Bolt M10 x 30 long 31 800005 800005 Outer cam bushing 32 800032 800032 Camshaft seal 33 810122 810122 Camshaft washer 35 810105 616L 810105 616L Camshaft 10 spline left hand 810105 616R 810105 616R Camshaft 10 spline right hand 36
11. o manual adjustment after the initial installation on the axle or initial re adjustment of the brakes after brake relines All automatic slack adjusters have a specific set up and installation procedure as specified by the automatic slack adjuster manufacturer This procedure must be adhered to If in doubt contact the manufacturer of the automatic slack adjusters or the manufacturer s agent for these specific procedures Generally automatic slack adjusters must be re adjusted similarly to the manual slack adjusters on initial installation or after brake relines Caution Please refer to the manufacturer s recommendations 2008 A member of The rumas Group Page 6 of 13 TAAL TMC Australia Pty Ltd TMC Trailer Axle Service Manual Drum Brakes AXLE HUB LUBRICATION Grease Filled Hubs l The wheel bearings must be fully packed with grease it is recommended that a wheel bearing packer or suitable equipment is used to correctly pack the wheel bearings with grease 2 Fill the hub cavity with grease as shown The cavity is to be filled to a line running from inner bearing cup inner diameter to outer bearing cup inner diameter Caution Do not overfill the hub cavity 3 After the final assembly of the hub onto the axle end a smear of grease should be applied to the inside of the hubcap and over the axle spindle nut s and lock washer aa
12. r the wheel bearings are replaced in service are checked for end float after the first 5000 km The wheel bearings should then be re checked for end float at 100 000 km intervals for the axle s service life These are the minimum recommended service requirements dependent on the service conditions more frequent service and maintenance schedules may be required for correct operation of the trailer axle Recommended wheel bearing end float checking procedure 1 Ensure that the hub rotates freely in both directions If any brake drag binding is felt temporally back off the brake adjustment to ensure free rotation of the hub 2 Rotate the hub in both directions and at the same time tighten the wheel bearing adjusting nut until a torque setting of 390 410 Nm is reached 3 Fit the axle lock washer onto the axle Fit the axle locknut and tighten to a torque of 290 310 Nm 4 Check the bearing end float is 0 08mm to 0 20mm Finally check that the hub rotates freely If it does not rotate freely it may be necessary to redo the wheel bearing tightening procedure SPINDLE ADJUSTING NUT LOCK WASHER Note Preset wheel bearings are unique bearings and cannot be mixed with other bearing types When being serviced or replaced bearing cups and cones must be kept as pairs or replaced as full sets The Preset bearing cups and cones must not be mixed 2008 A member of The rumas Group Page 4 of 13 TA
13. rake wear check the rest of the axle components for wear or damage Repair adjust or replace as necessary Every 300 000 km Remove wash and inspect the wheel bearings replace as necessary When re assembling the wheel bearings ensure they are correctly lubricated and adjusted See TMC Australia s recommended wheel bearing adjustment procedures Note These are the minimum recommended service requirements dependant on service conditions more frequent service and maintenance schedules may be required for correct operation of the trailer axle 10 Stud x 285 ped Hub 8 Stud x 275 ped Hub 10 Stud x 335 ped Hub 10 Stud x 225 pcd Hub 5 Spoke Spider Hub 420 x 180 Brake 335 x 210 Brake 420 x 180 Brake 335 x 210 Brake 420 x 180 Brake TMC Australia Pty Ltd policy is one of continuous development we therefore reserve the right to change or modify the specifications without notification 2008 A member of The rumas Group Page 2 of 13 TAAL TMC Australia Pty Ltd TMC Trailer Axle Service Manual Drum Brakes WHEEL BEARING ADJUSTMENT PROCEDURE Double Axle Lock Nuts and Lock Washer TN Wheel Bearings It is recommended that the wheel bearing in new axles or whenever the wheel bearings are replaced in service are adjusted after the first 5000 km The wheel bearings should then be adjusted at 100 000 km intervals for the axle s service life These are the minimum recommended service requirements depen
14. ve the desired finished weld fillet size 4 All welds must be conducted using low hydrogen rods or an approved equivalent MIG process TORQUE SETTINGS CHART Wheel nuts M22 ISO wheel studs 550 600 Nm 34 Unc Spider wheel studs 200 260 Nm Inner Camshaft Bracket Bolts M10 bolt and nut 30 35 Nm Dust Cover Bolts MS studs 20 25 Nm Hub Cap Bolts MS studs 20 25 Nm 5 16 Unc studs 20 25 Nm 2008 A member of The rumas Group Page 8 of 13 TMC TMC Australia Pty Ltd TMC Trailer Axle Service Manual Drum Brakes SPARE PARTS AXLE MODELS PFRD 225 167 and PFRD 245 167 Axles with 420mm diameter x 180mm wide brakes 16 5 x 7 PERD 2002 167 Vo ae PFRD 225 PFRD 245 2008 A member of The rumas Group Page 9 of 13 TMC TMC Australia Pty Ltd TMC Trailer Axle Service Manual Drum Brakes SPARE PARTS AXLE MODELS PFRD 225 167 and PFRD 245 167 Axles with 420 diameter x 180 wide brakes 16 5 x 7
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