Related Manuals for Meritor LM Series
Summary of Contents for Meritor LM Series
- Page 1 MAINTENANCE MANUAL NO. MM-1001 Meritor Inc. Trailer Axle Service Manual LM & LC Series Issued: 01/2012 Issue 02/2002...
- Page 2 Therefore all material contained in this manual is based on the latest information available at time of publication approval. Always check at www.meritor.com for the latest edition. © 2012 Meritor Inc.
- Page 3 MST 3110 Hub Puller pg. 38 Section 6 - Rotor Replacement pg. 59 MST 3210 Wheel Bolt Driver pg. 59 MST 3211 Wheel Bolt Removal Tool pg. 39 Rotor removal pg. 39 Rotor fitment Meritor Inc. LM & LC Series Axle...
- Page 4 General Information PG. 5 Service notes PG. 5 Safety instructions PG. 6 Warranty Meritor Inc. LM & LC Series Axle...
- Page 5 120lbs (55kg). Use a lifting system, taking care not to damage the brake Meritor Inc. uses the following notations to warn the user of assembly. possible safety issues and to provide information that will prevent damage to equipment and components.
- Page 6 ROR, MERITOR, MERITOR AND INDAIR ARE ALL REGISTERED TRADE MARKS IN THE UK AND ELSWHERE The high quality assurance management systems applied by Meritor Inc. are endorsed with the awarding of ISO 9001, Lloyd's Register Quality Assurance. © 2012 Meritor Inc.
- Page 7 Meritor Inc. LM & LC Series Axle...
- Page 8 Limitations of use pg. 10 Exploded view LM Hub assembly pg. 11 Exploded view LC Hub assembly pg. 12 Exploded view LM/LC Axle pg. 13 Axle identification plate pg. 13 Identifying the axle type Meritor Inc. LM & LC Series Axle...
- Page 9 2 Introduction Introduction to the LM Axle Range Axle Installation The Meritor LM range of axles are manufactured to the same high The following notes and recommendations are offered as a guide to standards expected of all Meritor products. the trailer manufacturer and service engineer. They are based on...
- Page 10 (per axle) Retaining Screw ABS Pole Wheel (Drumbrakes only) Hub Cap Wheel Stud Gasket Odmeter Hub Cap Button Head Screw Retaining Screw Hub Locknut Retaining Clip Retaining Washer Outer Bearing Inner Bearing Seal Meritor Inc. LM & LC Series Axle...
- Page 11 Fig 2.2 Item Description (per axle) Retaining Screw Hub Cap Gasket Hub Nut Stake Washer O-Ring Seal (Autumn 2009 onwards only) Seal ABS Pole Wheel (Drumbrakes only) Wheel Stud Odometer Hub Cap Retaining Screw Meritor Inc. LM & LC Series Axle...
- Page 12 Retaining Bolt (Sensor Block) - Pre May 2002 Axles only Spring Clip ABS Sensor Alternative Components - Disc Brake Applications Rotor - ABS Pole Wheel is an integral part ABS Sensor Block ABS Sensor Meritor Inc. LM & LC Series Axle...
- Page 13 2 Introduction The Axle Identification Plate Every axle leaving the Meritor factory is fitted with an identification plate which contains all the information needed to ensure correct replacement parts are obtained. Identifying the Axle Type All LM/LC axles are fitted with 10 stud, ISO 4107 spigot mount wheel fixings and asbestos free brake pads or linings as standard. Other option are detailed below.
- Page 14 Inspection & Maintenance pg. 15 Drumbrake axles pg. 16 Disc brake axles pg. 16 Rotor inspection pg. 18 ABS ring pg. 18 Rotor run out pg. 18 Skimming Meritor Inc. LM & LC Series Axle...
- Page 15 B Drumbrakes 353.5 mm diameter. Excessively worn drums must not be re-assembled with new brake shoes if the diameter exceedes the dimensions below. Q+ Drumbrakes 423 mm diameter. Fig. 3.3 B Drumbrakes 352.5 mm diameter. Meritor Inc. LM & LC Series Axle...
- Page 16 3 Inspection & Maintenance Inspect Brake Linings Disc Brake Axles Refer to the appropriate Meritor Inc. disc barke service manual for Do not disturb the brake lining surfaces if these show normal detailed disc brake inspection procedures. working appearance. Do not contaminate the surface of the linings with grease etc.
- Page 17 Heavy heat crazing is cracks in the rotor's surface that extend radialy and have an individual length of up to 75%brake path width. Refinish or replace a rotor that has heavy heat crazing. Fig. 3.7 Maximum length = 75% of “A” Fig. 3.6 Meritor Inc. LM & LC Series Axle...
- Page 18 6 Rotor Replacement or Section 7 ABS Component Skimming Replacement Resurfacing the rotor is permissible until the minimum thickness is reached 41mm. Refer to the appropriate Meritor service manual detailed below for full rotor wear parameters. MM 1147 DUCO MM 1127...
- Page 19 Meritor Inc. LM & LC Series Axle...
- Page 20 Hub Service & Replacement pg. 21 LM Hub removal pg. 25 LM Hub refitment pg. 28 LC Hub removal pg. 31 LC Hub refitment Meritor Inc. LM & LC Series Axle...
- Page 21 : Always de-adjust/adjust the brake carefully by hand with a suitable wrench. Never CAUTION: Meritor Inc. recommends the use of a exceed the maximum torque specified for the type of disc wheel dolly to remove the wheel, hub, and drum as brake in either direction and NEVER use power tools.
- Page 22 REMOVAL OF HUB Remove the hub assembly from the axle using a hub puller (Meritor CVA part number MST 3110). The five M8 hub cap screws may be used to secure the hub puller to the hub face (Fig. 4.4).
- Page 23 REMOVAL OF OIL SEAL AND INNER BEARING CONE The oil seal should be removed from the hub using an oil seal removal tool (Meritor CVA part number MST 3107) and suitable lever (Fig. 4.5). THE SEAL MUST BE DISCARDED. NEVER RE-USE AN OIL SEAL AFTER THE HUB HAS BEEN DISMOUNTED FROM THE AXLE SPINDLE.
- Page 24 It is advisable to replace with a complete new hub and bearing assembly which is available from Meritor CVA Apply 15 - 20gm of Meritor Hub Grease, Blue Lithium EP2 to the Distributors. cavity of the new seal, working the grease in evenly around the circumference of the seal.
- Page 25 CHECK SPINDLE END THREAD In case of the Meritor Disc Brake, refer to Section 7 ABS Any minor damage can be repaired using a die nut and holder Component Replacement for ABS installation instructions.
- Page 26 Fit the hub locknut (Fig. 4.10) and tighten using hub nut spanner NOTE : The button-head screws include a nylon thread locking (Meritor CVA part number MST 3104) until the nut is fully engaged patch. The locking properties of this patch are effective for two on the spindle thread.
- Page 27 Section 11. Ensure the gasket is compressed evenly and not damaged (Fig 4.14). Fig. 4.15 Refit the air chamber and brake pads as described in the appropriate Meritor Inc. Disc Brake service manual listed below: MM 1147 Fig. 4.14 DUCO...
- Page 28 NOTE: Comprehensive Disc Brake instructions can be found in Drum Brake Axles the appropriate Meritor Inc. Service Manual detailed below; The LC axle fitted with the Q + drum brake features an outboard MM 1147 mounted brake drum, thus enabling complete brake service to be performed without the removal of the hub assembly.
- Page 29 REMOVAL OF AXLE HUB NUT The axle hub nut can now be removed using the hub nut socket from the Meritor LC service kit (Meritor CVA part No. MST 3105) Remove the five M8 hub cap retaining screws. Remove the hub and a suitable 3/4"...
- Page 30 Drum Brake Axles The oil seal should be removed from the hub using an oil seal removal tool (Meritor CVA part No. MST 3107) and suitable lever If the hub is to be removed whilst still assembled to the road (Fig.
- Page 31 FIT NEW AUXILIARY OIL SEAL CHECK SPINDLE END THREAD Apply 15 - 20gm of Meritor Hub Grease, Blue Lithium EP2 to the Any minor damage can be repaired using a die nut and holder cavity of the new seal, working the grease in evenly around the (Meritor CVA part numbers MST 3108 and MST 3109).
- Page 32 Optimol 'Optimoly white paste T' or a conventional hub bearing and pull it fully forward in its mounting block. grease. In the case of the Meritor Disc Brake, refer to Section 7 ABS CAUTION: Only use the grease supplied with Component Replacement for ABS installation instructions.
- Page 33 Fit the axle hub nut to the spindle thread. Wind the nut down the spindle thread using the hub nut socket from the Meritor LC Service Kit (Meritor CVA part No. MST 3105). Continue until the hub is fully located and at the same time continuously rotate the hub (5 - 10 complete revolutions) to ensure the bearing rollers are seated.
- Page 34 STAKING THE WASHER TO AXLE HUB NUT CORRECT STAKING Using the staking tool from the Meritor LC Service Kit (Meritor CVA part No. MST 3105) stake a previously unused section of the outer flange of the stake washer into ONE of the slots on the face of the nut flange (Fig.
- Page 35 Section 11. Ensure the gasket is compressed evenly and is not damaged (Fig. 4.34). Fig. 4.35 Refit the air chamber and brake pads as described in the appropriate Meritor Inc. Disc Brake service manual listed below; Fig. 4.34 MM 1147 DUCO...
- Page 36 Drum Replacement PG. 37 Drum removal PG. 37 Drum fitment Meritor Inc. LM & LC Series Axle...
- Page 37 Refit the road wheel. Remove the axle safety stands and lower the vehicle to the ground. Fig. 5.1 Meritor Inc. LM & LC Series Axle...
- Page 38 Rotor Replacement PG. 39 Rotor removal PG. 39 Rotor fitment Meritor Inc. LM & LC Series Axle...
- Page 39 Tighten the rotor securing bolts to the correct torque specified in Component Replacement Section 11 Torque Values. Refit the road wheel. Remove the axle safety stands and lower the vehicle to the ground. Meritor Inc. LM & LC Series Axle...
- Page 40 ABS Component Replacement PG. 41 Drumbrake axles PG. 43 Disc brake axles Meritor Inc. LM & LC Series Axle...
- Page 41 The pole wheel can be fitted hot or cold using the oil seal driver (Meritor CVA Part No. MST 3106). If fitting hot, heat the pole wheel evenly to a maximum of 150ºC using a hot plate or induction heater and place onto the hub spigot ensuring it fully seats.
- Page 42 Secure the sensor block in position with a new M8 ‘Nyloc’ lock nut. ALWAYS USE THE CORRECT NUT. Refer to Meritor Parts List. Tighten the ‘Nyloc’ lock nut to the torque specified in Section 11. Ensure the block is correctly seated and fully clamped.
- Page 43 Fig. 7.4 7.4). Using an LM oil seal driver (Meritor CVA part No. MST 3106), gently tap the ABS tube over its spigot on the hub (Fig. 7.5). Keep the pole wheel square at all times and do not use excessive force to avoid damage to the thin tube.
- Page 44 7 ABS Component Replacement FITTING AN ABS SENSOR Sensor Block Assembly: Apply Meritor Brake Lubricant grease to the bush. Assemble the spring bush into the sensor mounting block. Push the sensor fully into the mounting block. Check when the hub and rotor has been fitted and that the sensor has been pushed up to the pole wheel (Fig 7.7).
- Page 45 Meritor Inc. LM & LC Series Axle...
- Page 46 Hub Odometer Replacement PG. 47 Hub odometer fitment Meritor Inc. LM & LC Series Axle...
- Page 47 It is advisable to assemble the hubodometer to the hub cap prior to fitting the hub cap to the axle. Where applicable remove the hub cap from te hub as desribed in Section 4 Hub Service & Replacement Meritor Inc. LM & LC Series Axle...
- Page 48 Wheel Bolt Replacement PG. 49 Drumbrake axles PG. 49 Disc brake axles Meritor Inc. LM & LC Series Axle...
- Page 49 Using the wheel bolt driving tool (Meritor CVA Part No. MST 3210) drive the bolts until the heads are fully seated against the hub flange (Fig. 9.2).
- Page 50 Axle Welding Recommendations PG. 51 Welding procedures PG. 51 Stresses and Welding Meritor Inc. LM & LC Series Axle...
- Page 51 Welding Procedures Stresses & Welding (Fig 10.1) Incorrect weld placement will void Meritor Inc.'s warranty and can During use the axle beam is subjected to a wide variety of forces. reduce the fatigue life of the trailer axle beam and suspension These are caused by the payload, bumps in the road surface, components.
- Page 52 Maintenance schedules, Torque values Lubricants & Grease volumes pg. 53 Maintenance schedules pg. 54 Torque Values pg. 54 Recommended Lubricants pg. 54 Grease Fill Volumes Meritor Inc. LM & LC Series Axle...
- Page 53 • Recommended maximum at 3 monthly intervals. • After 150 km. NOTE : If other than Meritor Brake Lubricant Total Fina is used or • After 1500 km. where vehicles are in contact with severe abrasives a max of 6 week interval necessary.
- Page 54 Dust cover bolts ......50 - 60 Nm Meritor Hub Grease, Blue Lithium EP2 Elf Lithium EP2 Total Multis EP2 Shell Calithia EP2T Texaco Multifak EP2 BP LS EP2 Silkolene Dust cover nuts .
- Page 55 Meritor Inc. LM & LC Series Axle...
- Page 56 58 MST 3108 Die Nut pg. 58 MST 3109 Die Nut Holder pg. 58 MST 3110 Hub Puller pg. 59 MST 3210 Wheel Bolt Driver pg. 59 MST 3211 Wheel Bolt Removal Tool Meritor Inc. LM & LC Series Axle...
- Page 57 MST 3103 - Bearing Driver (LM applications) MST 3105 - Hub Nut Spanner (LC applications) Fig. 12.1 Fig. 12.3 MST 3104 - Hub Nut Spanner (LM applications) MST 3106 - Oil Seal Driver Fig. 12.2 Fig. 12.4 Meritor Inc. LM & LC Series Axle...
- Page 58 12 Service Tools MST 3107 - Oil Seal Removal Tool MST 3109 - Die Nut Holder Fig. 12.5 Fig. 12.7 MST 3108 - Die Nut MST 3110 - Hub Puller Fig. 12.6 Fig. 12.8 Meritor Inc. LM & LC Series Axle...
- Page 59 12 Service Tools MST 3210 - Wheel Bolt Driver MST 3211 - Wheel Bolt Removal Tool Fig. 12.9 Fig. 12.10 Meritor Inc. LM & LC Series Axle...
- Page 60 MERITOR.COM. Descriptions and specifications were in effect at the time of this publication and are subject to change without notice or liability. Meritor reserve the right to make design improvements, change or discontinue parts at any time. All rights Reserved ©2012 Meritor, Inc.