Russian Motorcycle. Part 2: One-Wheel Drive (1WD) Ural (Урал( Днепр) Ernie Franke 1 / 2013

Transcription

1 Ural (Урал( Урал) - Dnepr (Днепр( Днепр) Russian Motorcycle Part 2: One-Wheel Drive (WD) (Also See Part : Overall Drive-Chain, Part 3: Two-Wheel Drive (2WD), Part : Gears and Gear Ratios, Part 5: Disassembly of Drive Chain, Part 6: Drive Train Components, Part 7: Drive Train Maintenance and Part 8: Chapter 7 of Bill Glaser's "Unofficial" URAL 750cc Motorcycle Service Manual) Ernie Franke eafranke@tampabay.rr.com / 203

2 Four Types of Final Drives in Russian Sidecars. Full-Time, Straight Final Drive (WD) (Part 2) One-Wheel Drive (WD) Available in Various Ural / Dnepr Models 2. Full-Time, Two-Wheel Drive (2WD) with Non-Locking Differential (Part 3B) Dnepr MB-650M (985-99) Dnepr MT-2 ( ) Dnepr MT-6 ( ) Dnepr Rear Drive Casings Allow for Adding Locking Differential First Available in Ural: Sportsman IMZ 8.07 ( ) Only True Differential for Ural Pre- Patrol Model 3. Full-Time, Two-Wheel Drive (2WD) with Locking (Engageable) Differential (Part 3C) Dnepr MB-750 (96-973) Dnepr MB-650 (968-98) Dnepr MB-750M ( ). Full-Time, WD with Engageable, Locking 2WD (non-diff) (Part 3D) Available in Various Ural Models Production: Patrol (998-Current), Gear-Up (200-Current) and Patrol-T (2009-Current) Limited Editions with Engageable Sidecar Drive Shaft: Derivatives of Patrol or Gear-Up Basic (2005), Raven (Vorona) (2006), Pustinja (2007), Wjuga (2008), Sahara (2009) and Taiga (200) Part 2 deals with the most popular sidecar, with a full-time WD final drive, where the sidecar wheel is not powered.

3 Ural (Урал( Урал) ) / Dnepr (Днепр( Днепр) WD Drive Chain and Suspension Ural (Урал( Урал) ) Model M-72 Production Engine 750cc SV Voltage 6-Volt Drive Train Full-Time, Straight Final Drive (WD) Rear Suspension Plunger M-72K cc SV 6-Volt Full-Time, Straight Final Drive (WD) Plunger M-72M cc SV 6-Volt Full-Time, Straight Final Drive (WD) Plunger M cc OHV 6-Volt Full-Time, Straight Final Drive (WD) Plunger M-62 (Ural-) cc OHV 6-Volt Full-Time, Straight Final Drive (WD) Plunger M-63 (Ural-2) cc OHV 6-Volt Full-Time, Straight Final Drive (WD) Swing Arm M-66 (Ural-3) cc OHV 6-Volt Full-Time, Straight Final Drive (WD) Swing Arm M-67 (IMZ-8.0) cc OHV 2-Volt Full-Time, Straight Final Drive (WD) Swing Arm M cc OHV 2-Volt Full-Time, Straight Final Drive (WD) Swing Arm Sportsman IMZ cc OHV 2-Volt Full-Time 2WD with non-locking Differential Swing Arm 8.03 Series cc OHV 2-Volt Full-Time WD with Engageable 2WD (No Diff) Swing Arm 750 Series 2003-Present 750cc OHV 2-Volt Full-Time WD with Engageable 2WD (No Diff) Swing Arm Dnepr (Днепр)( Model M-72 Production Engine 750cc SV Voltage 6-Volt Drive Chain Full-Time, Straight Final Drive (WD) Rear Suspension Plunger M-72N (H) cc SV 6-Volt Full-Time, Straight Final Drive (WD) Plunger K cc SV 6-Volt Full-Time, Straight Final Drive (WD) Swing Arm K-750M cc SV 6-Volt Full-Time, Straight Final Drive (WD) Swing Arm MT-2 (Dnepr-2) cc SV 6-Volt Full-Time 2WD with Non-Locking Differential * * Swing Arm MB cc SV 6-Volt Full-Time 2WD with Locking (Engageable) Diff * Swing Arm MB-750M cc SV 6-Volt Full-Time 2WD with Locking (Engageable) Diff * Swing Arm K-650/MT cc OHV 6-Volt Full-Time, Straight Final Drive (WD) Swing Arm K-650/MT cc OHV 6-Volt Full-Time, Straight Final Drive (WD) Swing Arm MB cc OHV 2-Volt Full-Time 2WD with Locking Differential * Swing Arm MB-650M cc OHV 2-Volt Full-Time 2WD with Non-Locking Differential * * Swing Arm MT cc OHV 2-Volt Full-Time, Straight Final Drive (WD) Swing Arm MT cc OHV 2-Volt Full-Time, Straight Final Drive (WD) Swing Arm MT- (Dnepr-) cc OHV 2-Volt Full-Time, Straight Final Drive (WD) Swing Arm MT-6 (Dnepr-6) cc OHV 2-Volt Full-Time 2WD with Non-Locking Differential * * Swing Arm * Locking Feature Deleted after Two Years of Production, * * Optional Kit Available to Add Locking Differential

4 Final Drive Functionality Final Drive Designed to Transmit Torque to Rear Wheel Includes Drive Shaft (propeller shaft with two joints) and Rear (main) Drive Propshaft Used to Transmit Torque from Gearbox to Rear Gear In addition, Propshaft Smoothes Stresses of Gearbox as a Result of Uneven Torque Developed by the Engine and Interaction with Road Wheels Front Driveshaft Joint Consists of Two Flexible Forks, One Installed on Secondary Shaft of the Gearbox and the Second on the Cardan Shaft Flexible Flanges Inter-Connected thru an Elastic Rubber Disc Prevents the Destruction of the Steel Band around the Elastic Disc Allows the Flexible Flanges to Make Angular Displacements Relative to Each Other, while Transmitting Torque Propeller Shaft Angle Variations Dynamic Loading in Two Fork Rotated Relative to Each Other Deformation of Rubber Smoothing Stresses Caused by Uneven Rotation, Due to Angle of Joint Thus Flexible Flanges Serve as Transmission of Swivel Torque and as a Stress Absorber To Prevent Radial Displacement of the Forks Relative to Each Other, Due to Deformation of the Rubber, Mating Flange Has Threaded Hole, Which Aligns the Shaft to the Ball of the Secondary Shaft of the Gearbox Rear Drive Transmits Torque to Rear Wheel and Contains Gear Reduction Torque Transmitted to a Pair of Bevel Gears with Spiral Teeth Gear Ratio of :.62 (8 pinion and 37 crown teeth) Each Gear Installed in Casing with Two Bearings: One Ball and One Roller (needle) Axial Forces Try to Push the Pair of Tapered Gears Apart To Contain these Forces and Ensure Proper Engagement, Angular-Contact, Double-Row Ball Bearings Are Set Outside Each Gear Internal Needle Bearings Prevent Misalignment of Gears and Only Incur a Radial Load The position of gears in the crankcase is solely determined by the position of ball bearings.

5 Rear Drive Has Pair of Bevel Gears (2 and 29) with Spiral Teeth mounted in Crankcase (3) without a Sidecar Wheel Drive Bevel Gear Ratio Is.62 (37/8 ring teeth /pinion teeth) for Russian Motorcycle with Sidecar Changes Direction of Torque at Right Angles to Power the Drive Wheel Elastic Disc (6) Consists of Two Steel Discs (7), Mounted on a Splined End of Gearbox Shaft and Slave Disc Sitting on Splined End of the Drive Shaft (8) Cylindrical Fingers of Both Discs Connecting Them Between Elastic Coupling (7) in a Steel Cage Rear Brake Placed on Neck of Left-Hand Side of Rear Drive Casing Six Studs Attach Cover (26) to Right-Hand Side of Rear Drive casing Support for Ball Bearing (N207), Driven Gear Hub (5) and Stationary Shaft of Rear Wheel Oil Filler-Hole at Top of Rear Drive Casing Screwed into Threaded Plug () Oil Drain-Hole at Bottom of Rear Drive Casing Gasket and Plug (2). Filler Plug with Dipstick 2. Drain Plug 3. Rear Drive Casing. Needle Roller Bearing 5. Driven Gear Flange Hub 6. Follower 7. Collar Seal 8. Needle Roller Bearing, Pinion 9. Tightening Wedge Shims 0. Nut Bearing. Seal 2. Wedge-Bolt 3. Needle Bearing Universal Joint Cross. Cross Shaft 5. Grease Fitting 6. Elastic Disc (Doughnut) 7. Flexible Coupling Flange (Disc) 8. Propeller Shaft (Propshaft) 9. Rubber Boot 20. Cap Gimbal (Cowl) 2. Cardan Fork 22. O-ring 23. Pinion Bearing 2. Leading Bevel Gear (Small Pinion) 25. Ball Bearing Idler 26. Rear Drive Cover 27. Shims 28. Installation 29. Driven Bevel Gear (Crown) 30. Rear Drive Cover Gasket One-Wheel Drive (WD) Drive Train

6 . Rear Drive Casing Close-Up of WD Rear Drive 2. Seal (gland) 3. Bearings Wedge Bolt and Nut. Universal Joint Output Hub Shaft for Rear Axle Ball Bearing 5. Driver Bevel Gear 6. Crown Driven Bevel Gear

7 One-Wheel Drive (WD) Drive Train (cont.) Wedge (Key) Bolt. Filler Plug with Dipstick 2. Drain Plug 3. Rear Drive Casing. Needle Roller Bearing 5. Driven Gear Flange Hub 6. Seal Cap 7. Collar Seal 8. Needle Roller Bearing, Pinion 9. Tightening Wedge Shims 0. Nut Bearing. Seal 2. Wedge-Bolt 3. Needle Bearing Universal Joint Cross. Cross Shaft 5. Grease Fitting 6. Elastic Disc (Doughnut) 7. Flexible Coupling Flange (Disc) 8. Propeller Shaft (Propshaft) 9. Rubber Boot 20. Cap Gimbal (Cowl) 2. Cardan Fork 22. O-ring 23. Pinion Bearing 2. Leading Bevel Gear (Driving Pinion) 25. Ball Bearing Idler 26. Rear Drive Cover 27. Shims 28. Installation 29. Driven Bevel Gear (Crown) 30. Rear Drive Cover Gasket Torque from Gear Box to Rear Wheel Transmitted via Propeller Shaft and Final Drive Helical Bevel Pinion and Gear Final Drive Should Not be Disassembled, If Not Necessary During Re-Assembly, Make Certain the Same Adjusting Washers (9 and 27) Are Re-Installed Washer (27) Used to Adjust Clearance between Gear Teeth Lateral Backlash between Pair of Bevel Gear Teeth: mm ( ) Clearance between Gear Teeth Should Be Felt by Hand When Rocking the Drive Shaft, with Hub (5) of the Driven Gear Locked in Position

8 One-Wheel Drive (WD) Drive Train (cont.) Removable plug drive shaft sitting on its end is half cardan joints. Second coupling half is slotted fork 2, mounted on the splined shank pinion (2) main transmission and fixed wedge bolt 2. Cross between the forks mounted gimbal, which is worn on the fingers of needle bearings 3, the outer ring is inserted into the socket plugs and kept them in the lock ring Universal Joint Needle Bearing Lubricated thru Screwed Nipple (5) in Center of Cross () Rubber O-ring in a Special Cage Keeps Grease at the Base of the Cross Fingers (shafts) () Universal Joint Protected from Moisture and Dirt by Metal Cap (20) with Left-Hand Threaded Nut (0) Bearing and Rubber Boot (9) In Axle Hole, Bushing Pressed into Rear Drive Casing Outer Race for 5 Needle Roller Bearings (3X0) Inner Race Serves as Driven Gear Hub Flange (5) In Side Hole, Needle Roller Bearing (8) and Double-Row Ball Bearing (23) Supports Shank of Leading (Driver) Bevel Gear (2) Bearings and bushings Lubricated with oil coming thru the hole in Driving Pinion, is above the nest by sticking the needle bearing 8 Oil is sprayed by rotating gears Left collar seal (7) Spring, compresses against the hub of the driven gear to prevent any oil on the brake pads installed on the Rear Drive Casing Outside a seal cap (6) Is Mounted Beveled gears Must Have a Backlash of mm ( ) washers 27 are set to adjust Backlash between Ball Bearing (25) Installed on the Cover and the Rear Drive gear inner race bearing In addition, A Set of Shims (9) Establishes lnvaetsya between angular contact ball bearing and pinion gear 23 and a plug 2 cardan tightened Wedge-Bolt (2) on Shank of Pinion Gear (2) Tightening the nut wedge and choosing the right amount of washer tightening inner race radial ball bearings (23) and Selection of the required number of shims 9 and 27 in the main gear assembly Provided lateral clearance between the teeth of the conical couples within the required limits Therefore, disassembly of the main transfer unnecessarily to use undesirable. If such disassembly, when the assembly is extremely important to put the same shims 9 and 27, Factory-Installed Outdoor cage clamped nut 0 bearing left-handed. To prevent oil leakage under the nut 0 is cork, and in the groove nut 0 on the neck of the fork 2 - a special gland. Crown Driven Gear (29) Is Mounted on Flange Hub (5) with Eight Bolts On Opposite Side of Hub s Flange (5) Are Slots Which sits stupntsa drive wheel. Axial Movement of the Hub Is Limited to the spacer, inside the hub 5

9 One-Wheel Drive (WD) Drive Train (cont.) When Position of Rear Wheel on Uneven Roads Moves Up-and-Down, Angle of Inclination of Propeller Shaft Varies Universal Joint with Cross-Piece Transfers Torque with Deviations Up to 8 Combination of Deformation of Elastic Disc (6) and Propeller Shaft (8) Twisting Softens the Sharp Jolts and Bumps in Power Transmission Driveshaft Length Ensures Total Clearance (both sides) between Fexible Coupling (6) and Flexible Coupling Disk (7) that Horizontal Position of PTO (Power Take-Off) Shaft Must Be within 3 to 6 mm (0. to 0.2 ) To Set the Clearance, the Rear End of Drive Shaft Has Several Annular Grooves for Retaining Rings, Locks the Propeller Shaft Splines Fork Drive Shaft and Enables the Desired Length of Shaft with Fork Attached, to Achieve the Value of the Gap in the Sleeve Maintenance of Universal Joint Bearing Lubrication Aided thru Grease Fitting (5) Remove Rear Wheel, Slide the Rubber Boot (9) to Middle of Propeller Shaft and Unscrew the Cowl (20) by Turning Clockwise (Left-Hand Thread) * 3 mm Gap to be Set during Motorcycle Assembly 8. Propeller Shaft 7. Flexible Disk 20. Cowl 5. Grease Fitting 6. Elastic Disc 9. Rubber Boot Main Drive (K-750)

10 Rear Drive (WD) with Modified Seal Hub Collar Packing Gland (seal) Replaced Left Collar Seal, Starting with Dnepr MT-9 New Design Mounts on Central Hub Casing with Needle Roller Bearings. Filler Plug with Dipstick 2. Drain Plug 3. Rear Drive Casing. Gasket 5. Rear Drive Cover 6. Driven Gear Hub 7. Shim 8. Seals 9. Shim 0. Crown Wheel. Shim 2. Ball Bearing 3. Shim. Lock Ring 5. Flexible Coupling Band 6. Flexible Flange (Disc) 7. Drive Shaft 8. Rubber Boot 9. Grease Fitting 20. Protective Cap (Cowl) 2. Cardan Fork 22. Wedge Bolt 23. Pinion Ball Bearing 2. Seal 25. Nut Bearing 26. Ball Bearing 27. Pinion Gear 28. Needle Bearing 29. Seal 30. Needle Roller Bearing Required Spacing: mm

11 . Plug Housing 2. Spring Seal 3. Collar Gland (Seal). Seal Follower 5. Screw M5H2 6. Washer 7. Axle Brake Pad Assembly 8. Final Drive 9. Rear Drive Assembly 0. Needle Bearing. Small Pinion Drive Gear 2. Double-Row Bearing 3. Pinion Gear Assembly. Adjusting Washer 5. Pressure Washer 6. Seal Nut 7. Nut 8. Seal Plug Assembly 9. Nut Bearing Assembly 20. Wedge Bolt 2. Slotted Cardan Fork 22. Oil Fitting 23. Cross 2. PTO Shaft 25. Drive Shaft Cover 26. O-Ring O Gimbal 27. Locking Ring 28. Elastic Cardan Drive 29. Locking Clip 30. Clip 3. Sleeve Coupling Elastic Gimbal 32. Flexible Cardan Coupler 33. Elastic Coupler Assembly 3. PTO Shaft with Hinge 35. Plug In 36. Cardan Joint K-650K 37, and 57. Washer 38. Gimbal Lock Ring 39. Needle Bearing 0. O-Ring O Holder. O-RingO 2. Slotted Nut 3. Pin 5. Needle Roller 6. Rear Drive Cover 7. Gasket 8. Puck Control 9. Bearing No Bolt 5. Hub of Driven Gear 52. Driven Gear 53. Rear Gear Transaxle 5. Spacer 55. Nut M8x 56. Spacer WD Drive Chain Example: Ural M-63M Dnepr (Kiev) driveshafts are made of a rod, with splined ends for mating forks, whereas Ural (Irbit) driveshafts have one end integral with the drive shaft.

12 WD Ural Final Drive (Year 2000 Repair Manual, M-63, M 650cc). Driven Gear Fastening Bolt 0. Distance Bushing 9. Universal Joint Splined Fork 28. Packing Ring 2. Driven Gear Rim. Casing 20. Lock Ring 29. Needle Bearing 3. Gasket 2. Driven Gear Hub 2. Universal Joint Cross 30. Wedge Bolt. Casing Bushing 3. Oil Drain Duct 22. Grease Cup 3. Bearing Nut 5. Needle Bearing Roller. Needle Bearing 23. Propeller Shaft 32. Gasket 6. Casing Seal 5. Double-Row Ball Bearing 2. Lock Ring 33. Driving Gear 7. Seal Cover 6. Adjusting Washer 25. Hood 3. Casing Cover 8. Rear Wheel Axle 7. Universal Joint Fork Seal 26. Propeller Shaft Collar 35. Adjusting Washer 9. Seal Spring 8. Protective Washer 27. Flexible Joint Driven Disk 36. Ball Bearing

13 WD Ural Final Drive (cont.) Studs for Attaching Rear Wheel Suspension Metal Band around Elastic Disc Large Crown Driven Beveled Gear Oil Fill Splined End of Propshaft Propeller Shaft (Propshaft( Propshaft) Elastic Disc (Doughnut) Flexible Flange Universal Joint (Cross) Wedge Bolt Small Driver Pinion Beveled Gear Rear Wheel Brake Rear Wheel (Pusher) Axle Power Delivered from Gearbox to Rear Wheel by Drive Shaft (propeller shaft) and Rear Drive Drive Shaft Connected to Gearbox via Flexible Rubber Collar that Dampens Torque Impulses and a Universal Joint that Allow Suspension Travel (up/down) of Rear Wheel Propeller Shaft Drive Incorporates the Flexible Joint (27), Propeller Shaft (23) and Universal joint (2) Flexile Joint Is a Coupling Sleeve Fitted with Plates and Pins Propeller Shaft (23) Is Aligned by Means of the Ball End of Main Shaft which Enters the Socket in the Front End of Propeller Shaft Cast Housing Containing Helical Bevel Gear Set that Turns Rear Wheel at Lower Speed than the Shaft Casing Serves as Backing Plate for Brake Shoes, Oil Reservoir and Support for Right-Hand End of Rear Wheel Axle Casing Has Oil Drain Hole at the Bottom with an Oil Plug Oil Fill Hole Provided in the Cover Cover (3) Attached to Casing Has a Slot and Two Studs to Fasten Rear Drive to Swinging Fork Arm of Rear Suspension Gear Backlash Is Adjusted via Adjusting Washers (35) Installed between Side Portion of Casing Cover and Inner Race of Ball Bearing (36) Backlash of 0.00 to 0.0 / 0. to 0.3 mm Needed between Active Faces of the Beveled Gears

14 Achsantrieb, Kardanwelle (Solo & Tourist) URAL - Moto et side-car Type IMZ

15 Assembly Drawings Arranged by WD and 2WD One-Wheel Drive (WD) Ural M-72 M-6, M-62, M-63, M-66, M-67, M Dnepr M-72 K-750, K-750M K-650 ( MT-8 and MT-9) MT-0, MT-0.36 MT- ( ) Two-Wheel Drive Shown in Part 3 (2WD) Full-Time 2WD MT-2 ( ) MT-6 ( ) MB-750 (96-973) MB-750M ( ) MB-650 (968-99) MB-650M ( ) Engageable Two-Wheel Drive Shown in Part 3D (2WD) Production: Patrol (998-Current), Retro, Gear-Up (200-Current), Patrol-T (2009- Current) Limited Editions with Engageable Sidecar Drive Shaft: Basic (2005), Raven (Vorona) (2006), Pustinja (2007), Wjuga (2008), Sahara (2009) and Taiga (200)

16 M-72, K-750, K M-6M and M-62 Drive Train narod.ru/base7.html Drive shaft is a thin steel rod with joints at the ends, twist while working at a small angle. The front end of the drive shaft is connected to the output shaft gear flexible coupling of the simplest type, the rear end - with a small bevel gear reducer main gear through a conventional double pedal hard. Cross is movably installed in the fork drive shaft and the plug 3 with needles 2, 20 cups, 22 steel and rubber washers 23 and lock ring 9. Grease comes from a needle grease fitting 5. With a vertical movement of the rear wheel with the main gear in the spring suspension in the event of collision with bumps in the road distance between the main gear and the gearbox changes, while fingers of steel disks 6 are moved in a few holes of the rubber disk that protects the driveline from the axle loads. Leading Bevel gear (5) is set to dvuh.podshipnikah: front double-row angular contact ball bearings, delivered with preload and rear needle bearing (6) Driven bevel gear (0) is mounted on single-row radial thrust bearing () on a bronze bearing, consisting of two half-rings (9), rotating in a steel ring (33) Ural M-62 "Ural" bronze semi-circular Bushings replaced bronze needle bearing Threaded plugs 3 holes to close the fill and oil drain

17 M-72, K-750, K M-6 M and M-62 M with Plunger Suspension Attached to rear drive casing68. Cardan Universal Cross 2. Rubber Cap 3. Protective Cowl. Wedge Bolt 5. Shank of Pinion Gear 6. Driven Gear 7. Hub 8. Ball Bearing 9. Casing Cover 0. Distance Sleeve (Spacer). Brake Pad 2. Packing Nut The plunger suspension is attached to the M-72, K-750, K M-6 M and M-62 M rear drive casing.

18 M-72 Final Drive with Cardan Shaft (WD) Gland Seat Cardan Cross + Clips Anti-Shock Disk O-Ring Needle Bearing Double-Row Bearing Conical Bolt + Nut Fork Ballbearing Cover for Universal Joint Cardan Rubber 7203 Oil plug + Washer Outer Race for Needle Bearing Crown wheel Bolt, Crownwheel Set Bushing M8 x Gasket for Differential Cover Cover for Final Drive

19 M-72 Doughnut in the Final Drive (Cardan( Cardan) (WD) Propller Shaft (Driveshaft( Driveshaft) Elastic Coupler (Doughnut) Fork Universal Joint Cross Circlip

20 M-72 Final Drive Casing (WD)

21 M-72 Final Drive (WD) Output Hub Gear Sline Propller Shaft (Driveshaft( Driveshaft)

22 M-72 (WD) Cardan Rubber Grease Nipples M / MT Cardan Cross + Clips Elastic Absorber Fork Cover for Universal Joint Cardan Shaft Flexible Flange Conical Bolt + Nut One term describing carburetors is round-slide, flat-slide or butterfly throttle valves.

23 M-72 Rear Drive and Cover with Plunger (www. ( Needle Bearing Race Hub Oil Seal Cover Rear Drive Cover Gasket Rear Drive Cover

24 M / 2/ L Double-Row Bearing Pinion Needle Bearing /8790 Pinion Shaft Adjustment Shim (Various Thickness) O-Ring Seal Seat Final Drive Hub Crownwheel Set Crown wheel Bolt, M8 x Bushing Shim 37x6x0.20mm Shim 37x6x0.27mm

25 M-72, M-6 M Final Drive (WD). Cardan Universal Cross 2. Rubber Cap 3. Protective Cowl. Wedge Bolt 5. Shank of Pinion Gear 6. Driven Gear 7. Hub 8. Ball Bearing 9. Casing Cover 0. Distance Sleeve (Spacer). Brake Pad 2. Packing Nut

26 M-72 Final Drive (WD). Shaft from Gearbox 2. Pin Ball 3. Flexible Flange on Gearbox Side. Pins 5. Steel Band 6. Large Circlip 7. Elastic Coupler 8. Sleeve 9. Holes for Pins 0. Pins. Flexible Coupler 2. Proprller Shaft 3. Rubber Cap. Protective Cowl 5. Cardan Fork 6. Cross Shaft 7. Universal Cross 8. Grease Fitting 9. Washer 20. Steel Washer 2. Roller Bearings 22. Ferrule (Sleeve) 23. Circlip 2. Plug (Fork) 25. Wedge Bolt 26. Gland (Seal) 27. Packing Nut 28. Packing Washer 29. Special Washer 30. Shim 3. Spline of Pinion Gear 32. Bearing 33. Conical Bevel Gear 3. Bearing 35. Rear Drive Casing 36. Bushing 37. Regulatory Gasket 38. Slave Gear 39. Hub Flange 0. Ball Bearing. Shim Washer 2. Casing Cover 3. Distance Sleeve (Spacer). Steel sleeve 5. Oil drain Plug 6. Bleed Hole 7. Gland (Seal) 8. Seal Follower

27 K-750, K-750MK 750M,, K-750B K (MT905( MT905-) Final Drive Housing (WD) В Rear Drive Housing В Outer Race for Needle Bearing 72H052 Rear Drive Cover Gasket for Rear Drive Cover 290 / Stud M8 x Oil Plug + Washer 2505 Nut M8x

28 K-750, K-750MK 750M,, K-750B K Rear Drive with Covers (WD) 72H052 Rear Drive Cover Part # Description Qty 72H05-A Rear-Wheel Drive, Assembled, with Brake 72H0502-A Drive Case, with Driving Gear, Assembled (includes 72050, 72H0506A, , 72052, ) 72H050-A Rear-Wheel Drive Case Drive Case Bushing 72H0506-A Drive Case, Assembled (includes 72H050-A, 72050, A, 2525, 208, 26072, A) Drive Case Cover Gasket A Oil Seal Follower Oil Seal Cover H Oil seal Cover Fixing Screw Drive Case Cover Drive Cover Fixing Screw 7203-A Oil Plug + Washer -A A Drive Cover Fixing Stud Drive Cover Fixing Nut Rough Washer for Fixing Stud 5 72H0522 Drive Case Cover, Assembled (includes 72H052, A) A Spring Washer for Stud Oil Seal Spring Drain Plug Nut M8x 007 Drain Plug anf Filler Plug Spacer Brake Cam Lubricator

29 K-750, K-750MK 750M,, K-750B K Final Drive Reducer (Crownwheel Set) Double-Row Bearing Needle Bearing B Crownwheel Set Gland Seat Shim Ballbearing 72x35x A Bushing Washer for Crownwheel Bolts

30 Part # Б N Б A K-750, K-750MK 750M,, K-750B K Rear Drive Reduction Gear with Bearings Description Driving Gear with Bearings, Assembled (includes , , Б Rear-Wheel Drive Gear Needle Bearing Double-Row, Radial-Thrust Ball Bearing Bearing Nut of Rear-Wheel Drive, Assembled (includes , ) Bearing Nut Bearing Nut Washer Pinion, Assembled (includes Б, , , 0903, 2070 Single-Row radial Ball Bearing Drive Pinion Pinion Hub Pinion-to-Hub Fixing Bolt Spacing Ring mm Spacing Ring mm Spacing Ring mm Spacing Ring mm Spacing Ring.5 -. mm st Bearing Liner for Pinion Hub 2 nd Bearing Liner for Pinion Hub Adjusting Washer mm Adjusting Washer mm Adjusting Washer mm Spacing Sleeve Gear Shifting Pedal Oil Seal Ring Special Safety Washer Qty Needle Bearing Washer for Crown Wheel Bolts Double-Row Bearing Ball Bearing Shim Gland Seat

31 K-750, K-750MK 750M,, K-750B K Final Drive, Cardan Shaft (WD) Cardan Rubber / MT Grease Nipples M6 Cardan Joint Spider Elastic Disk Б Cardan Joint Fork Coupling Cotter Pin w/nut Cardan Shaft Coupling Dust Cover Flexible Flange Part # Description Qty Universal Joint Circlip H053-72H Б 72H Cardan Shaft with Joint, Assembled (includes 72H0530, , Б,, , 72053,720532, , , , 2, 26072) Cardan Shaft Universal Joint Casing, Assembled Cardan Shaft Packing Ring Elastic Cardan Disk Universal Joint Splined Fork Universal Joint Cross Cardan Shaft Lubricator

32 Dnepr MT-9, MT-0, MT-0.36, MT- Final Drive (WD) MT905- Final drive MT905- Main Drive with Brake MT905 Main Drive

33 MT-9, MT-0, K-650 K Final Drive Casings and Covers (WD) Gasket Dipstick for Differential Cover Outer Race for Needle Bearing В 72H A Oil Plug + Washer Oval Head Screw 22326

34 MT-9 9 / MT-0 / MT-0.36 / MT- / K-650 K Casings and Covers of Final Drive (WD) Part # Description Qty 7203-A Plug Gasket Б Gland ы Cover 72H052 Cover Spring Crankcase Assy B Crankcase B Bushing Dip Stick Assy Dip Stick Plug Bracket Part # Description Qty Bracket Bushing П8 007-П Stud Gasket Outer Race for Needle Bearing 208-П8 Bolt, M6X П5 Screw, M5X П8 Screw, M8X П П П8 Nut, M8X Washer, 8 Washer, 6Л6 9 5 Rear Drive Cover 72N052 Oval Head Screw П8 Washer П8 Lubricator

35 MT-9 9 / MT-0 / K-650K Final Drive (Crownwheel Set) (WD) B Crownwheel Set / 2/ L Double-Row Bearing Final Drive Nut Ballbearing 72x35x Washer for Crownwheel Bolts Final Drive Hub Bushing

36 MT-9 9 / MT-0 / MT-0.36 / MT- / K-650 Final Drive Reducer (WD) Part # Description Qty Washer 7202 Gland (Seal) Washer 7205 Gland Spring A Bushing Gland Assembly Washer Gland (Seal) Washer Б / Б Gears (pair) Washer A A / A Gears (pair) Washer / Gears (pair) Б Nut Assembly Hub Nut Washer Ring Washer 2073-П Bolt Washer 207 Ball Bearing Washer 8790 Needle Bearing Washer Л Ball Bearing Washer 3 X 5.8 Roller 5

37 MT-9 9 / MT-0 / MT-0.36 / K-650 K Universal Joint Shaft (Cardan( Cardan) (WD) Universal Joint (Cross-Piece) Part # MT MT Б Б A Б П П П П (2053-2) 2) Description Universal Joint Shaft Assy Universal Joint Shaft Disk Coupling Assy Fork Cross-Piece Seal Hoop Ring Wedge Coupling Bushing Hoop Ring Cap Locking Ring Packing Ring Hinge Fork Nut Washer Cotter Pin Lubricator Needle Bearing Qty 2

38 MT-9 9 / MT-0 / MT-0.36 / K-650 K Universal Joint Shaft (Cardan( Cardan) (WD) Grease nipples M Б Elastic Absorber / MT Universal joint Conical Bolt + Nut Cardan Shaft Б Cover for Universal Joint

39 MT-0.36

40 Ural M-63 M (Ural-2), M-66 M (Ural-3) and M-67 M Final Drive (Cardan). Casing Cover 2. Distance Ring 3. Casing Bushing. Needle Bearing 5. Ring Gear Hub 6. Round Seal 7. Seal Cover 8. Seal Spring 9. Distance Bushing 0. Rear Wheel Axle. Casing 2. Oil Drain Duct 3. Needle bearing. Drain Hole Plug 5. Packing Washer 6. Shim 7. Bearing Nut 8. Universal-Joint Splined Fork 9. Circlip 20. Universal-Joint Hood 2. Universal-Joint Cross 22. Lubricator 23. Propeller Shaft 2. Flexible Joint Driven Flange 25. Circlip 26. Flexible Joint Band 27. Rubber Disc 28. Propeller Shaft Sealing Collar 29. Sealing Ring with Band 30. Needle Bearing 3. Wedge 32. Seal 33. Gasket 3. Double-Row Ball Bearing 35. Pinion Shaft 36. Gasket 37. Ring Gear 38. Ball Bearing Universal Joint Hood Propeller Shaft Seal (Rubber) Flexible Joint Driven Flange Bevel or Ring Gear (Driven) Universal Joint (Cross) Propeller Shaft (Propshaft) Pinion Gear (Driver) Flexible Disk (Doughnut)

41 M-62 / M-63 M / M-66 M / M-67M Final Drive (WD) Part # 6302-У Description FD Casing Cover Propeller Shaft Flexible Joint Flange Circlip FD Casing Casing Oil Seal Spring FD Pinion Shaft Pressure Washer FD Bearing Nut FD Bearing Nut Gasket Ring Gear Driven Ring Gear Hub Driven Distance Ring.7 mm Distance Ring.2 mm Distance Ring 2.0 mm Distance Ring.5 mm Adjusting Shim 0.08 mm Adjusting Shim 0.8 mm Distance Bushing Univ. Joint Splined Fork Circlip M M-63 M-66 M Part # Б A Б Ы Description Universal Joint Cross Propeller Shaft Sealing Collar Sealing Collar Holder Adjusting Shim 0.0 mm Wedge Bolt Flexible Joint Coupling Flexible Joint Band Lock Ring Univ. Joint Fork Seal Assy Locking Strip Adjusting Shim Propeller Shaft Seal Boot Adjusting Shim 0.08 mm Adjusting Shim 0.8 mm FD Gears with Bearings Assy FD Gears with Hubs Assy Flexible Joint Coupling Assy FD Casing Bushing FD Casing Gasket FD Casing Oil Seal Collar FD Oil Seal Cover M-62 M-63 M-66 M-67

42 Cardan М Flexible Coupling Holder. Seal 2. Flexible Coupling 5. Carter 3. Flexible Flange 6. Spacer. Propeller Shaft 7. Follower 5. Outer Ring Cardan Shaft 8. Wheel axle 6. Slotted Fork Drive Shaft 9. O-Ring O 7. Gland (Seal) 20. Oil Fitting 8. Seal Clip 2. Hinge Hood 9. Rear Drive Cover 22. Propeller Shaft Cross 0. Driven Pinion Gear 23. Wedge Bolt. Bearing 2. Shim 2. Rear Drive Bushing 25. Double-Row Ball Bearing 3. Needle Roller Bearing 26. Small Pinion Ring Gear 27. Needle Bearing

43 Ural M M Final Drive, Drive Shaft (WD) # Part # IMZ IMZ IMZ IMZ IMZ IMZ B B A A P P A A9 Description Transaxle Gimbal Assembly Cap gimbal assembly Cardan Shaft with universal joint assembly Propeller shaft assembly Needle bearing Cardan shaft Propeller shaft sealing ring Elastic cardan drive Cardan fork Slotted Retaining ring Cardan shafts Gimbal ring sealing Holder of the O-ringO gimbal Wedge bolt Flexible couplings cardan Elastic sleeve couplings cardan STRIPS elastic gimbal Locking clips elastic gimbal Castellated nut to M8x Wedge Bolt Washer 8 2x20 cotter pin Oiler for cardan shafts locking gimbal ring The M M rear gear drives the bike s s pusher and not the sidecar wheel.

44 M Final Drive, Rear Gear Case (WD) 7203-A Drain plug Cap Leading pinion assembly with bearings Fork oil seal universal joint assembly Crankcase oil seal collar Transaxle with spring 9 IMZ Carter's final drive Carter's main transfer hub Gasket crankcase main transmission B Crankcase oil seal collar B Gland crankcase IMZ Crankcase cover Spring seal crankcase Needle bearing Double row ball bearing Gear driven final drive assembly Final drive leading Washer push Nut bearing final drive O Rings Final drive led Gear driven hub of the main transfer The safety plate Spacer ring thickness mm Spacer ring thickness of.2 mm Spacer ring thickness of mm Spacer ring.5mm.mm Adjusting washer thickness mm Adjusting washer thickness of 0.6 mm Adjusting washer mm Spacer Adjusting washer thickness mm Adjusting washer thickness of 0.6 mm Adjusting washer mm 37 IMZ Bush 39 IMZ Flat washer 3x5, 8SH Needle roller Ball-bearing 3 07 Washer special 2053-P M8h bolt mounting idler P29 M5h2 screw fastening the gland P29 M8x nut P2 8L washer to the bolt handle positioning P29 M8hh2 stud mount The absence of satellite gears in the rear housing indicates that the rear drive is not a differential.

45 Part # Description Qty MT- (WD) 7202 Gland (Seal) КМЗ Gland Spring Gland Assembly Б Nut Assembly Б Gears (pair) Б A Gears (pair) A Gears (pair) Nut Ring Hub Washer Washer Washer Washer Washer Gasket Gasket Gasket A Bushing Washer MT80580 Gasket Gasket Gasket Gasket Gasket Gasket Cup 2 MT- is a One-Wheel Drive (WD), whereas the MT-6 is Two-Wheel Drive (2WD) 2073 Bolt Ball Bearing 8790 Needle Bearing Л Ball Bearing 3 X 5.8 Roller 5

46 MT- Rear Drive (WD) Hub Oil Seal Cover A Oil Plug + Washer Hub Needle Bearing Inner Race Rear Drive Cover Gasket Dipstick Part # 7203-A Б Б Б Б 72H Description Plug Casing Assy Casing Bushing Gasket Gland (Seal) Cover Cover Spring Dipstick Assy Dipstick Plug Bracket Bushing Stud Gasket Bolt Screw Screw Nut Washer Washer Lube Fitting Stud Qty Rear Drive Cover 72N052

47 MT-0, MT-0.36, MT- Propeller (Cardan( Cardan) ) Shaft Б Cover for Universal Joint A Disk Universal joint Universal Joint (Cross-Piece) MT90530 Cardan Shaft Б Elastic Absorber Part # MT MT Б Б Б A Description Coupling Assy Cardan Shaft Assy Cardan Shaft Cowl Circlip Sealing Ring Disk Fork Hinge Spider Seal Yoke Fork Ring Wedge Bolt Coupling Bushing Yoke Ring Nut Washer Cotter Pin Lube Fitting Needle Bearing Qty 2

48 IMZ-8.03/37 (650 cc) Final Drive and Drive Shaft IMZ , 0, -0, 0, , 0, Universal Joint (Cross-Piece) Б Elastic Absorber IMZ IMZ IMZ IMZ P P P2 IMZ IMZ P IMZ IMZ IMZ Б Б А Final Drive Assy Flexible U-joint U coupling Drive Shaft with U-U Joint Assy Drive Shaft Assy Filler plug Wedge Bolt Washer 8 to Wedge Slotted nut M8x to Wedge Cotter Pin 2x20 to Wedge Protective Washer Drive Shaft Fork Assy Universal Joint Splined Fork U-Joint Cross Greaser U-Joint Cross U-Joint Sealing Ring Sealing Ring Band Needle Bearing U-Joint Lock Ring B9 Drive Shaft Circlip Flexible U-Joint U Plate Flexible U-Joint U Coupling Sleeve Flexible U-Joint U Coupling Sleeve Bushing Flexible U-Joint U Holder Flexible U-Joint U Holder Lock Ring

49 Ural 650 (IMZ , -0; ; -8.07) Differential Final Drive Hub Gasket for Differential Cover

50 IMZ-8.03/37 Final drive and rear brake (Fig. 5) 750/650 IMZ IMZ IMZ IMZ IMZ IMZ IMZ IMZ IMZ IMZ E P29 HU-7203-A IMZ IMZ P27C 2505-P27C IMZ IMZ IMZ IMZ IMZ P P27C Brake shoe per unit case cover assembly up to 06/2005 case cover assembly from 07/2005 Bearing nut assembly, final drive up to 06/2005 Bearing nut assembly, final drive from 07/ Seal (old one) 750 Final drive gear case seal with spring assembly up to 6/ Final drive gear case seal with spring assembly from 7/2005 Plug Bushing 650 Final drive case 750 Final drive case Special washer Inner hexagon screw M8x30, from 2006 Stud M8x-6gx2up to 2005 Drain plug magnetic Drain plug, Russian Drain plug magnetic with sealing (Italian) Washer 8 Nut M8x-6H Sealing ring Brake shoe axle, assembly Rear wheel brake cam Driving plate Rear wheel brake lever Washer 8L Nut M8x-6H Return spring (Russian, fades out) IMZ IMZ IMZ IMZ IMZ IMZ IMZ P RSR-C IMZ IMZ IMZ P P29 E P27C IMZ IMZ IMZ

51 2005 Ural Tourist 750 cc Final Drive (WD) Brake Activation Lever Propeller Shaft (Propshaft) Rear Drive Casing Universal Joint Flexible Coupling Elastic Disc (Doughnut) Rear Brake Shoes Brake Activation Lever 2005 Ural Tourist 750 cc Final Drive Ural Retro and Tourist motorcycles use a One-Wheel Drive (WD) drive chain.

52 IMZ IMZ IMZ IMZ SKF 330A IMZ IMZ IMZ SKF 6207s3 TC 0303 NBR TC 0286 NBR IMZ IMZ IMZ IMZ IMZ IMZ Ural Final Drive One-Wheel Drive (WD) Final drive assy Final drive case Case cover Bearing nut, assy, final drive Double raw ball bearing Needle bearing Drive shaft fork assy Flexible U-joint coupling Dipstick and breather Ball bearing Seal assy Flexible U-joint coupling Gear case seal Final drive driven gear Final drive driven gear hub Bearing nut Final drive driving gear Drive shaft cross Needle bearing U-joint sealing ring U-joint sealing ring band U-joint lock ring B9 Drive shaft fork assy Flexible U-joint plate Drive shaft assy IMZ IMZ IMZ AMP 20327A AMP IMZ IMZ IMZ RN 3x5.8B IMZ IMZ P2,595,65, DIN 92 M8x P IMZ IMZ Breather plug Dipstick assy Ring Special washer Drain plug Gear case gasket Gear case bushing Distance bushing Roller 3х5.8B Lock plate Shim 0,08 0,07 mm Shim 0,8 0,6 mm Shim 0, 0,36 mm Gear case cover Special bolt М0х,25-6g Washer 0L Nut M0x,25-6H, Bearing nut gasket Shim0,8 0,6 mm Shim 0, 0,36 mm Stopper Screw М8x30х8,8 Bolt M8x Protective cover Bevel gears set

53 Rear Drive Swing-Arm Attachments WD vs. 2WD MT-9, MT-0, MT-0.36, MT- (WD) K-750, K-750M K (WD) 2WD Swing-Arm Ural M-63, M M-66, M M-67, M M M (WD) WD Swing-Arm MT-2, MT-6, MB-750, MB-650 (2WD) Note: M-72, M M-6 M and M-62 M Have Plunger (non-swingarm Swingarm) ) Rear Drive Suspensions Ural 650cc / 750 cc WD swing-arms have a straight bracket attachment to the rear drive casing, whereas the 2WD rear drive swing-arms attach with a C-shaped bracket.

54 Rear and Sidecar Wheel Suspension ( cc Shop Manual).. Rear Suspension Swingarm 0. Collet Clamp 20. Lever - Sidecar Wheel 2. Rear Mud Flap. Collet Clamp Screw 2. Brake Tie Rod 3. Rear Grab Bar 2. Motorcycle Stand 22. Brake Drum cover. Spring-Loaded Hydraulic Shock Absorber 3. Brake Pedal 23. Sidecar Wheel Axle 5. Seat (Saddle or Tractor). Sidecar Wheel Brake Lever 2. Protective Hood 6. Strap 5. Sidecar Frame Legs 25. Tie Rod Nut 7. Motorcycle Frame 6. Sidecar Wheel Brake Rod 26. Sidecar Fender 8. Sidecar Adjusting Strut 7. Rear Collet Clamp Bracket 27. Rubber Body Suspension 9. Sidecar Frame Legs 8. Rear Bracket Fastening Bolt 28. Parking Brake 9. Lever Pins (Long Bolts) The rear wheel is suspended on a trailing swing-arm, pivoting on rubber (silent block) bushings located by removable pins in the frame and is supported by dual hydraulic shocks/springs. The final drive bolts onto the right-hand side of the swing-arm. The sidecar wheel is carried on a forked, trailing-link swing-arm, supported by a single hydraulic/shock/spring, pivoting in silent block bushings around long bolts ( lever pins ).