diferencial 930 maquinaria pesada

Principio del formularioFinal del formulario

Principio del formulario

Producto: WHEEL LOADER

Modelo: 930 WHEEL LOADER 71H

Configuracin: 930 WHEEL LOADER 71H00001-00259 (MACHINE)

Desarmado y Armado 920 & 930 WHEEL LOADER POWER TRAIN Nmero de medio -REG00975-01 Fecha de publicacin -01/12/1977 Fecha de actualizacin -10/10/2001

Rear DifferentialSMCS - 3258-11 ; 3258-12 Final del formularioPrincipio del formulario

Remove Rear Differential

1. Drain the oil from the differential. The capacity of the differential is 3 U.S. gal. (11 litre).2. Drain the oil from the final drives. The capacity of the final drives is 4 U.S. gal. (15 litre).3. Remove rear universal joint (1) from the machine.4. Put blocks in front and behind the front tires.

5. Disconnect brake line (2) from the rear axle housing.

6. Install a floor jack under the differential for support.7. Fasten a hoist to each side of the main frame.

8. Remove the eight bolts and nuts (3) that hold the support brackets from each side of the main frame.NOTE: The front bolts on each side of the machine can not be removed. 9. Lift the rear of the machine approximately 6 in. (15.24 cm). The weight of the rear of the machine is approximately 6,000 lb. (2700 kg).

10. Use the floor jack to pull the rear axle housing from under the machine. The weight of the unit is 2,100 lb. (945 kg).11. Install tooling (A) under the main frame and lower the weight of the machine on tooling (A) as shown.

12. Put blocks in front and behind the tires and turn the differential in a vertical position with a hoist and use the floor jack for support as shown.

13. Remove yoke assembly (4) from the pinion shaft.

14. Remove the bolts, retainer (5) and the gasket from the pinion housing.15. If necessary, remove seal (6) from retainer (5).

16. Fasten a hoist and remove the front support (7) from the pinion housing. The weight of the support is 75 lb. (34 kg).

17. Remove seals (8), seal ring (9) and bearing (10) from the front support.18. Remove the covers and O-ring seals from the wheel assemblies.

19. Pull both axles (11) out of the final drives approximately 12 in. (30 cm).

20. Remove the bolts that hold the differential carrier in the axle housing.21. Install two 1/2"-13 NC forged eyebolts in the pinion housing and fasten a hoist to the differential.22. Use two 1/2"-13 NC forcing screws to loosen the differential carrier from the axle housing.23. Remove the differential from the axle housing. The weight of the differential is approximately 250 lb. (113 kg).Install Rear Differential

1. Put clean oil on the O-ring seal and install it around the differential carrier.2. Install two 1/2"-13 NC forged eyebolts in the pinion housing and fasten a hoist to the differential. Put the differential in position in the axle housing.3. Install the bolts that hold the differential and tighten them to a torque of 98 7 lb.ft. (134 10 Nm).

4. Install the bearing and the ring that holds the bearing in front support (1).5. Use tooling (A) to install the seals in front support (1) with the lip of the seals toward the outsie as shown.

6. Fasten a hoist and install front support (1) on the pinion housing. Make sure the ring that holds the bearing in the front support is toward the front of the machine when installed.

7. Use tool group (B) to install the seal in retainer (2) with the lip of the seal toward the inside as shown.

8. Install the gasket and retainer (2) on the pinion housing.9. Put clean oil on the lip of the seal in retainer (2) and install the yoke assembly on the pinion shaft.

10. Push both axles (4) into the differential and final drives.11. Put clean oil on O-ring seals (3) and install covers (5) on the final drives. Make sure the flat surface of the planetary gear shafts are toward the outside or covers (5) can not be installed.12. Fasten a hoist to both side of the main frame and lift the rear of the machine enough to remove tooling (C).13. Turn the differential in the horizontal position with a hoist and use a floor jack to move the axle housing and differential in position under the machine.

14. Lower the machine and install the bolts and nuts (7) that hold the differential supports.

15. Connect brake line (6) to the axle housing.16. Use tool (D) and remove (bleed) the air from the rear brakes. See HYDRAULIC BRAKE SYSTEM SERVICING in TESTING AND ADJUSTING.NOTE: If necessary turn the rear wheels to make an alignment of the universal joint flanges.

17. Install rear universal joint (8) and tighten the bolts to a torque of 48 8 lb.ft. (64 11 Nm).18. Fill the differential and final drives with oil to the correct level.

Final del formulario


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Mon Jun 18 21:29:36 UTC+0200 2012







Desarmado y Armado 920 & 930 WHEEL LOADER POWER TRAIN Nmero de medio -REG00975-01 Fecha de publicacin -01/12/1977 Fecha de actualizacin -10/10/2001

Torque Proportioning DifferentialSMCS - 3263-15 ; 3263-16 Final del formularioPrincipio del formulario

Disassemble Torque Proportioning Differential

1. Fasten a hoist and remove the differential from the carrier. The weight of the differential is: 920-65 lb. (29 kg)930-95 lb. (43 kg) 2. Remove the lockwire and bolts (2) from each end of the differential to remove covers (3). Remove bearings (1) from the covers only when replacement parts are needed.

3. Remove discs (4) and springs (5) from each end of the differential case. Make a note of the position of the springs for assembly purposes.

4. Remove gears (6) from each end of the differential case.

5. Remove rings (7) from each end of the differential case.

6. Remove pins (8) from the differential case.

7. Use a 1/4"-20 NC forged eyebolt to remove the twelve shafts (9).8. Remove the twelve pinion gears and eight wear plates (for the center pinion gears) from the differential case.Assemble Torque Proportioning Differential

NOTE: There are eight drive pinions (1) with the same part number. There are four idler pinions with the same part number.

NOTICE

Install the pinions so the end of the pinions that have the identification mark is toward the inside of the differential case.

1. Install four idler pinions (2) in the center of case (3). Install wear plates (4) in the case. Install the four shafts (5) for the idler pinions.2. Install four drive pinions (1) in the end of the case opposite the flange. Install shafts (5) for the drive pinions.3. Install four drive pinions (1) in the end of the case with the flange. Install shafts (5) for the drive pinions.

4. Put the holes in the shafts in alignment with the holes in the case and install pins (6) to hold the shafts.

5. Install ring (7) in the grooves in the differential case.

6. Install gears (8) in each end of the differential case.

7. Put oil on both sides of springs (10) and install them so that the outside diameters make contact with the gear first.

8. Heat the bearings to a maximum temperature of 275F (135C) and install them on covers (11).9. Put 5P960 Multipurpose Type Grease on both sides of discs (9) and install the discs on covers (11).10. Put covers (11) in position and install the bolts and lockwire to hold the covers.

11. Fasten a hoist and install the differential in the carrier.




Mon Jun 18 21:31:21 UTC+0200 2012







Especificaciones 920 & 930 POWER TRAIN SPECIFICATIONS Nmero de medio -SENR7335-00 Fecha de publicacin -01/02/1976 Fecha de actualizacin -12/10/2001

Differential And Bevel Gear(Front and Rear)SMCS - 3263-15 ; 3263-16 Final del formularioPrincipio del formulario

NOTE: Use the following torques and procedures for a Torque Proportioning Differential.

TORQUE PROPORTIONING DIFFERENTIAL

CORRECT TOOTH CONTACT (5) Torque for the bolts that hold carrier to axle housing: 920 and 930 with lockwashers ... 98 7 lb.ft.(133 10 Nm) 930 with flat washers ... 110 10 lb.ft.(150 14 Nm) (11) Torque for the bolts that hold bevel gear to case ... 98 5 lb.ft.(133 7 Nm) (13) Torque for bolts with flat washers (930) ... 110 10 lb.ft.(150 14 Nm) Adjustment Procedure:1. Install pinion shaft (2) with bearings in housing (1).2. Tighten nut (7) on pinion shaft (2), until torque needed to turn pinion shaft (2) is ... 8 2 lb. in.(0.9 0.2 Nm)3. Install lock and nut (10).4. Install case assembly (8) in carrier (4) with bevel gear (9) on side toward dowel hole in carrier (4).5. Install pinion shaft (2) and housing (1) into carrier (4). Use shims (3) to put pinion shaft (2) in alignment with bevel gear (9).6. Make adjustments to nut (6) and (14) until free movement (backlash) (12) between bevel gear (9) and pinion shaft (2) is: (920) ... .005 to .010 in.(0.13 to 0.25 mm) (930) ... .008 to .013 in.(0.20 to 0.33 mm) 7. Tighten nut (6) and (14) the same amount until the torque needed to turn pinion shaft (2) is ... 30 to 50 lb. in.(3 to 6 Nm) If the nuts are turned the same amount, the free movement (backlash) will not change. 8. Check free movement (backlash) again. If an adjustment is necessary, turn nut (6) and (14) the same amount and in the same direction until the correct free movement (backlash) is given. If the nuts are turned the same amount and in the same direction, the bearing preload will not change.

9. Use the procedure that follows to check tooth contact: a. Put a small amount of prussian blue, red lead, or paint on the ring gear teeth.b. Turn the pinion shaft in both directions and check the marks made on the ring gear teeth.c. See the illustration for the marks of the correct tooth contact.

ILLUSTRATION A 10. If the marks on the ring gear look like the marks in Illustration A, use the procedure that follows: a. Remove some of shims (3).b. After some of the shims are removed, do Steps 6, 7, and 8 again.c. Check tooth contact again.

ILLUSTRATION B 11. If the marks on the ring gear look like the marks in Illustration B, use the procedure that follows: a. Install more of shims (3).b. After more of the shims are installed, do Steps 6, 7, and 8 again.NOTE: Several adjustments may be necessary before the tooth contact is correct. Free movement (backlash) must be correct before tooth contact can be checked. Final del formulario



Mon Jun 18 21:32:34 UTC+0200 2012


diferencial 930 maquinaria pesada

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