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Exploded View

Maintenance Manual MM-0230

Issued 07-02

ArvinMeritor, Inc.

Page i

Exploded View

Locknut, M32 x 1.5

13 Inner Bearing Cup

25 Side Gear

Yoke

14 Carrier

26 Differential Pinion Shaft

Seal

15 Differential Cap Capscrew, M14 x 2.0

27 Differential Case

Screws, M6 x 1.0

16 Cotter Pins

28 Differential Case Capscrew, M12 x 1.75

Lock Plate

17 Thrust Washer

29 Carrier-to-Housing Capscrew, M12 x 1.75 x 60

Pinion Cage

18 Differential Pinion

30 Carrier-to-Housing Capscrew, M12 x 1.75 x 30

O-Ring

19 Adjusting Ring

31 Breather

Outer Bearing Cup

20 Bearing Cup

32 Axle Housing

Outer Bearing Cone

21 Bearing Cone

33 Fill Plug

10 Drive Pinion

22 Ring Gear

34 Drain Plug

11 Shim

23 Differential Case — Ring Gear Side

35 Axle Shaft

12 Inner Bearing Cone

24 Thrust Washer

Содержание MS-113

Страница 1: ...Rear Axle Single Reduction Carrier Model MS 113 Maintenance Manual MM 0230 Issued 07 02 2 50 ...

Страница 2: ... Information by Phone Call ArvinMeritor s Customer Service Center at 800 535 5560 to order the following publications O Approved Rear Drive Axle Lubricants Technical Bulletin TP 9539 O Failure Analysis for Drive Axle Components Manual TP 9955 O Lubrication Maintenance Manual 1 O Drive Axle Housings Maintenance Manual 8 O Drivetrain PlusTM by ArvinMeritor Technical Electronic Library on CD Features...

Страница 3: ... Drive Axle Housing 12 Removing Fasteners Secured with Adhesive 13 Install Fasteners New Fasteners with Pre Applied Adhesive Original or Used Fasteners Using Meritor Liquid Adhesive 2297 C 7049 or Loctite 680 Adhesive or Equivalent Applying Meritor Specification 2297 T 4180 Adhesive in the Bearing Bores Differential Applying Three Bond 1216 or Equivalent Silicone Gasket Material 14 Gear Sets 15 Ex...

Страница 4: ...31 Contaminated Lubricant Found During Preventive Maintenance 32 Section 6 Torque Specifications 33 Section 7 Lubrication 34 Section 8 Towing Instructions Before Towing or Drive Away 36 After Towing or Drive Away 37 Section 9 Special Tools Carrier Repair Stand Specifications 38 How to Make a Yoke Bar 39 ...

Страница 5: ...k Plate 17 Thrust Washer 29 Carrier to Housing Capscrew M12 x 1 75 x 60 6 Pinion Cage 18 Differential Pinion 30 Carrier to Housing Capscrew M12 x 1 75 x 30 7 O Ring 19 Adjusting Ring 31 Breather 8 Outer Bearing Cup 20 Bearing Cup 32 Axle Housing 9 Outer Bearing Cone 21 Bearing Cone 33 Fill Plug 10 Drive Pinion 22 Ring Gear 34 Drain Plug 11 Shim 23 Differential Case Ring Gear Side 35 Axle Shaft 12 ...

Страница 6: ...ing Figure 1 1 The carrier has a hypoid drive pinion and ring gear set Bevel gears are used in the differential assembly All bearings in the carrier are tapered roller bearings When the carrier operates there is normal differential action between the wheels all the time Figure 1 1 1 ADJUSTING RING 2 CARRIER 3 RING GEAR AND DRIVE PINION 4 TAPERED ROLLER BEARING 5 TAPERED ROLLER BEARING 6 HOUSING 7 ...

Страница 7: ...els to prevent the vehicle from moving 2 Raise the rear end of the vehicle so that the rear wheels are off the ground Support the vehicle with safety stands Figure 2 1 3 Place a drain pan under the rear axle 4 Remove the drain plug from the bottom of the axle housing Drain the lubricant from the assembly Install the drain plug and tighten it to 35 50 lb ft 48 67 N m 5 Disconnect the driveline univ...

Страница 8: ...crews in the TOP of the carrier that secure the carrier to the axle housing 5 Use a hydraulic roller jack and pry bar with a round end to remove the carrier from the axle housing Take care when you use the pry bar so that you don t damage the carrier or housing flange WARNING To avoid serious personal injury and damage to components take care when using lifting devices during service and maintenan...

Страница 9: ...erential bearing cap capscrews and the cap Figure 2 8 3 Remove the differential adjusting ring and bearing cup from bolted on bearing cap side Figure 2 9 4 Remove the differential assembly from the carrier and place it onto a workbench 5 Remove the differential adjusting ring and bearing cup from integral bearing cap side Drive Pinion from the Carrier 1 Fasten a yoke bar onto the yoke to hold the ...

Страница 10: ...from the carrier 6 Remove the pinion cage and the drive pinion from the carrier 7 Remove the drive pinion inner bearing cup from the carrier Disassembly WARNING Observe all warnings and cautions provided by the press manufacturer to avoid damage to components and serious personal injury Differential Case and Ring Gear 1 Remove the capscrews from the differential case Figure 2 13 Figure 2 10 1 YOKE...

Страница 11: ...ntial pinion shaft differential pinions and thrust washers Figure 2 16 4 Remove the side gear and thrust washer Figure 2 17 Use a brass hammer to remove the ring gear from the differential case Figure 2 18 Figure 2 14 Figure 2 15 1 THRUST WASHER 2 SIDE GEAR 1 2 Figure 2 16 1 DIFFERENTIAL PINION 2 THRUST WASHER 3 DIFFERENTIAL PINION SHAFT Figure 2 17 1 SIDE GEAR 2 THRUST WASHER Figure 2 18 1 RING G...

Страница 12: ...n 1 Remove and discard the pinion cage O ring Figure 2 20 2 Remove the outer bearing cup and seal from the pinion cage Discard the seal 3 Use a bearing puller or a press to remove the inner and outer bearing cones from the drive pinion 4 Remove the shim from the drive pinion Figure 2 19 1 DIFFERENTIAL CASE Figure 2 20 1 PINION CAGE 2 O RING 3 OUTER BEARING CUP 4 OUTER BEARING CONE 5 DRIVE PINION 6...

Страница 13: ...ound or polished parts Damage to parts will result 3 Do not clean ground or polished parts with water or steam Do not immerse ground or polished parts in a hot solution tank or use strong alkaline solutions for cleaning or the smooth sealing surface may be damaged Clean Rough Parts 1 Clean rough parts with the same method as cleaning ground and polished parts 2 Rough parts can be cleaned in hot so...

Страница 14: ...us at the large diameter end of the rollers is worn to a sharp edge Figure 3 1 O There is a visible roller groove in the cup or cone inner race surfaces The groove can be seen at the small or large diameter end of both parts Figure 3 2 O There are deep cracks or breaks in the cup cone inner race or roller surfaces Figure 3 2 O There are bright wear marks on the outer surface of the roller cage Fig...

Страница 15: ...ntial pinion shaft O Teeth and splines of both differential side gears O Teeth and bore of all differential pinions 4 Inspect axle shafts for wear and cracks at the flange shaft and splines Replace the axle shafts if required Repair or Replace Parts NOTE Threads must be without damage and clean so that accurate adjustments and correct torque values can be applied to fasteners and parts 1 Replace a...

Страница 16: ... The high temperature caused by the open flame from the cutting torch can ignite the oil in the axle housing and can cause serious personal injury 1 Remove the oil drain plug from the bottom of the axle housing and drain the lubricant from the assembly CAUTION Remove the differential carrier from the axle housing before you weld onto an axle Do not weld onto an axle with the differential carrier i...

Страница 17: ...C before you begin welding 8 Use suitable weld wire electrodes when you weld Suitable weld wire electrodes include either BS EN 499 E 42 2 B 32 H5 or BS EN 440 G 42 2 M GSi American Welding Society equivalents E7018 and ER70S3 respectively 9 For complete welding instruction refer to Maintenance Manual 8 To obtain this publication refer to the Service Notes page on the front inside cover of this ma...

Страница 18: ...sive 2297 C 7049 or Loctite 680 Adhesive or Equivalent WARNING Take care when you use Loctite to avoid serious personal injury Follow the manufacturer s instructions to prevent irritation to the eyes and skin 1 Use a wire brush to clean the oil dirt and old adhesive from all threads and threaded holes 2 Apply four or five drops of Meritor liquid adhesive Loctite 680 adhesive or equivalent inside e...

Страница 19: ...he gear set as required Refer to Section 4 Applying Three Bond 1216 or Equivalent Silicone Gasket Material WARNING When you apply some silicone gasket materials small amounts of acid vapor are present To prevent serious personal injury ensure that the work area is well ventilated If the silicone gasket material gets into your eyes flush them with water for 15 minutes Have your eyes checked by a ph...

Страница 20: ...umbers to verify that the gear set you will install has matched parts Figure 3 15 Examples Gear Set Gear Set Tooth Combination Number Gear Set Match Number NOTE Meritor s drive pinions and ring gears are only available as matched sets Each gear in a set has an alpha numeric match number Figure 3 14 1 0 125 3 MM DIAMETER SILICONE GASKET BEAD 1 Figure 3 15 ALTERNATE LOCATIONS 1 PART NUMBER TOOTH COM...

Страница 21: ...on Number NOTE Don t use the pinion cone variation number when you check for a matched gear set Use this number when you adjust the pinion depth in the carrier Refer to Section 4 Pinion Cone PC Variation Number Drive Pinion Location Ring Gear Location PC 3 2 0 01 mm PC 5 1 0 02 mm At the end of the pinon gear head On the outer diameter ...

Страница 22: ...because of the tight fit 2 Heat the ring gear A maximum temperature of 340 F 170 C can be applied at the gear web The temperature at the gear teeth must not exceed 250 F 120 C Wear safe clothing and gloves while working with the hot ring gear 3 Position the differential case on a workbench with the bearing cone on top 4 Place the ring gear over the differential case immediately after the gear is h...

Страница 23: ...l pinion shaft in the differential case on top of the side gear The holes in the differential pinion shaft must align with the capscrew holes in the differential case Figure 4 4 12 Install the side gear and thrust washer over the differential pinions Figure 4 5 13 Position the case half over the side gear Figure 4 6 Figure 4 2 1 SIDE GEAR 2 THRUST WASHER Figure 4 3 1 DIFFERENTIAL PINION 2 THRUST W...

Страница 24: ... the differential case and inspect parts for wear or damage Repair or replace parts as necessary Reassemble the differential case and repeat Steps 2 through 4 Installation Drive Pinion into the Carrier 1 Install the drive pinion inner bearing cup into the carrier 2 Apply axle lubricant onto the carrier pinion cage bore and inner bearing cup 3 Apply axle lubricant onto the pinion inner and outer co...

Страница 25: ... the yoke locknut 15 Install the yoke and locknut onto the drive pinion shaft 16 Fasten a yoke bar to the yoke to hold the drive pinion in position when you tighten the locknut Figure 4 11 Refer to Section 9 to build a yoke bar 17 Tighten the locknut to 740 920 lb ft 1000 1245 N m Remove the yoke bar Differential Case and Ring Gear into the Carrier 1 Install the bearing cup and adjusting ring into...

Страница 26: ...ing adjusting rings and the ends of the differential case Figure 4 14 The pry bars must not touch the differential bearings B Insert two pry bars between the differential case or the ring gear and the carrier at locations other than specified in Step A Figure 4 15 The pry bars must not touch the differential bearings 4 Tighten the bearing adjusting ring until the dial indicator reads ZERO end play...

Страница 27: ...t the bearing caps have expanded Refer to the following example O If the measurement is 0 006 0 013 inch 0 15 0 33 mm Proceed to Check Ring Gear Runout Radial Movement in this section O If the measurement is not within the specification above Repeat Steps 3 and 4 as necessary Sample Differential Bearing Preload Calculation Check Ring Gear Runout Radial Movement 1 Attach a dial indicator onto the c...

Страница 28: ... the mounting flange of the carrier Figure 4 19 2 Adjust the dial indicator so that the plunger or pointer is against the tooth surface 3 Adjust the dial indicator to ZERO Hold the drive pinion in position 4 After reading the dial indicator rotate the differential and ring gear a small amount in both directions against the drive pinion teeth O If the backlash reading is within specification Check ...

Страница 29: ...tely 12 gear teeth of the ring gear Rotate the ring gear so that the 12 gear teeth are next to the drive pinion Figure 4 24 3 Rotate the ring gear forward and backward so that the 12 gear teeth go past the drive pinion six times to get the contact patterns Repeat if needed to get a clearer pattern 4 Look at the contact patterns on the ring gear teeth Compare the patterns to Figures 4 25 4 26 and 4...

Страница 30: ...between the top and bottom of the gear teeth Use the following procedure A Disassemble the yoke pinion cage and the drive pinion Refer to Section 2 B Remove the inner bearing cone from the drive pinion Refer to Section 2 C Change the bearing shim O To correct a high contact pattern Figure 4 26 Replace the bearing shim with a thicker shim O To correct a low contact pattern Figure 4 27 Replace the b...

Страница 31: ...ct patterns toward the heel of the ring gear teeth Figure 4 30 C Repeat Steps 2 4 and 6 until the contact patterns are at the correct location in the length of the gear teeth 7 Install the cotter pins into the adjusting rings so that the large end is between the adjusting ring lugs Bend the tabs out flat against the outboard side of the leg caps in two places Figure 4 31 Figure 4 29 1 Move pattern...

Страница 32: ...and the carrier mounting surfaces Use a cleaning solvent and rags to remove dirt Blow dry the cleaned areas with air Refer to Section 3 2 Inspect the axle housing for damage Repair or replace the axle housing Refer to Section 3 3 Apply Meritor specification 2297 T 4180 liquid adhesive or equivalent into the threaded holes in the axle housing To obtain this adhesive refer to the Service Notes page ...

Страница 33: ...155 N m 5 Connect the driveline universal joint to the pinion input yoke on the carrier 6 Remove the safety stands Lower the vehicle Remove the blocks from the wheels Fill the Axle with Lubricant 1 Park the vehicle on a level surface 2 Remove the fill plug from the axle housing 3 Fill the axle housing with the correct lubricant until the lubricant level is to the bottom of the fill plug hole Refer...

Страница 34: ...rrier from the axle housing Repair the carrier or install a remanufactured carrier Refer to Section 2 Drain and inspect the lubricant Refer to MM 1 Remove the carrier from the axle housing Refer to Section 2 Visually inspect the ring gear and pinion for damage Refer to TP 9955 Failure Analysis for Drive Axle Components Repair the carrier or install a remanufactured carrier Refer to Section 4 Repai...

Страница 35: ...he axle housing Repair the carrier or install a remanufactured carrier Refer to Section 2 Drain and inspect the lubricant Refer to MM 1 Check the drive pinion end play Refer to Section 4 Any end play looseness indicates possible bearing damage Remove the carrier from the axle housing Refer to Section 2 Visually inspect the ring gear and pinion for damage Refer to TP 9955 Failure Analysis for Drive...

Страница 36: ...e axle housing Remove the carrier from the axle housing Repair the carrier or install a remanufactured carrier Refer to Section 2 Inspect the axle housing welds for cracks or leaks If you find weld cracks contact Meritor for repair welding procedures Fill the carrier with the correct amount of the specified lubricant Refer to Section 6 Clean the seal area Test drive the vehicle to confirm that the...

Страница 37: ...fer to Section 2 Drain and inspect the lubricant Refer to MM 1 Replace the pinion seal with a unitized seal Replace the pinion cage O ring with a new O ring Joint leaking No Yes Test drive the vehicle to confirm that the leak is repaired Return the vehicle to service Send out a lubrication sample for analysis Advise the owner to return for the results Inspect the axle housing welds for cracks or l...

Страница 38: ... 008 inch 0 200 mm maximum Backlash Setting Range for Old Gear Sets 0 008 0 018 inch 0 20 0 46 mm Backlash Setting for New Gear Sets 0 005 0 015 inch 0 13 0 38 mm Fastener Size Torque Value lb ft N m Yoke Locknut M32 x 1 5 740 920 1000 1245 Adjusting Ring Lock Plate Capscrews M6 x 1 0 Class 10 9 10 13 14 18 Differential Case Capscrews M12 x 1 75 Class 10 9 105 115 140 155 Differential Cap Capscrew...

Страница 39: ... Pints Liters 14 6 8 Vocation or Vehicle Operation Motorhome Recreational Vehicle Commercial Van Beverage Truck Stake Truck Wrecker City Delivery School Bus Fire Truck Municipal Truck Utility Truck Initial Oil Change No longer required as of January 1 1993 Check Oil Level Every 25 000 miles 40 000 km or the fleet maintenance interval whichever comes first Every 10 000 miles 16 000 km once a month ...

Страница 40: ...th EP Additives GL 5 85W 140 O 76A MIL PRF 2105E and SAE J2360 Above 10 F 12 C 80W 140 O 76B Above 15 F 26 C 80W 90 O 76D Above 15 F 26 C 75W 90 O 76E Above 40 F 40 C 75W O 76J From 40 F 40 C to 35 F 2 C 75W 140 O 76L Above 40 F 40 C Extended Drain Lubricants Petroleum with Extended Drain Additives GL 5 80W 90 MIL PRF 2105E and SAE J2360 Above 15 F 26 C Semi Synthetic 80W 90 Above 15 F 26 C Full S...

Страница 41: ...e axle shaft from the axle assembly Figure 8 1 5 Install a cover over the open end of each hub where an axle shaft was removed This will prevent dirt from entering the bearing cavity and loss of lubricant NOTE If an air supply will be used for the brake system of the transported vehicle continue with Steps 6 and 7 otherwise continue with Step 8 6 Connect an auxiliary air supply to the brake system...

Страница 42: ...started Refer to the manufacturer s instructions 3 Disconnect the auxiliary air supply if used from the brake system of the vehicle that was transported Connect the vehicle s air supply to the brake system 4 Remove the covers from the hubs NOTE Continue with Steps 5 6 to install all axle shafts 5 Install the axle shaft into the axle housing and carrier in the same location it was removed from The ...

Страница 43: ...meter x 9 228 6 mm long with one end slotted to fit plate 4 Weld all around after pressing plug into pipe 5 Weld 6 Shape and size of holes to fit carrier 7 23 1 2 596 9 mm center to center of pipe 8 Chamfer end of pipe for welding 9 4 101 6 mm diameter pipe 10 Plug 4 101 6 mm diameter x 7 177 8 mm long with one end turned 3 76 2 mm long to fit pipe Drill 2 50 8 mm hole and mill 3 16 4 76 mm wide s...

Страница 44: ... Welding equipment can burn you and cause serious personal injury Follow the operating instructions and safety procedures recommended by the welding equipment manufacturer 3 To make the box section cut and weld 1 0 inch x 2 0 inch 25 4 mm x 50 8 mm mild steel square stock according to dimensions C and D Figure 9 2 4 Cut a 4 0 foot x 1 25 inch 1 21 m x 31 75 mm piece of mild steel round stock to ma...

Страница 45: ... the publication was approved for printing and is subject to change without notice or liability Meritor Heavy Vehicle Systems LLC reserves the right to revise the information presented or to discontinue the production of parts described at any time Copyright 2002 Maintenance Manual MM 0230 ArvinMeritor Inc Issued 07 02 All Rights Reserved Printed in the USA 16579 24240 ...

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