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Things to remember while upgrading the brakes of your carjennifermiller8137
Upgrading the brakes of your car? Keep these things in mind before doing so. Additionally, start using an OBD 2 GPS tracker so that you never miss a vehicle maintenance appointment. On top of this, a car GPS tracker will also let you master good driving habits that will let you increase the operational life of your car’s brakes.
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Learn why monitoring your Mercedes' Exhaust Back Pressure (EBP) sensor is crucial. Understand its role in engine performance and emission reduction. Discover five warning signs of EBP sensor failure, from loss of power to increased emissions. Take action promptly to avoid costly repairs and maintain your Mercedes' reliability and efficiency.
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2. Shutdown SIS
Previous Screen
Product: EXCAVATOR
Model: 312C EXCAVATOR BNN
Configuration: 312C & 312C L Excavators BNN00001-UP (MACHINE) POWERED BY 3054T Engine
Disassembly and Assembly
312C Excavator Machine Systems
Media Number -RENR7476-00 Publication Date -01/07/2003 Date Updated -22/07/2003
i03040582
Final Drive and Travel Motor - Disassemble
SMCS - 4050-015; 4351-015
S/N - BNN1-UP
Disassembly Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 138-7573 Link Bracket 3
B 1P-2420 Transmission Repair Stand 1
C - Bolt (M6) 2
D
1P-0074 Slide Hammer Puller Gp 1
4C-5666 Threaded Adapter 1
123-6702 Backlash Gauge Gp 1
E 1P-0510 Driver Gp 1
F 8H-0663 Bearing Puller Gp 1
G 1P-1863 Retaining Ring Pliers 1
H 9U-7346 Spanner Wrench As 1
Start By:
A. Remove the final drive and the travel motor. Refer to the Disassembly and Assembly, "Final
Drive and Travel Motor - Remove".
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3. NOTICE
Care must be taken to ensure that fluids are contained during
performance of inspection, maintenance, testing, adjusting and repair
of the product. Be prepared to collect the fluid with suitable containers
before opening any compartment or disassembling any component
containing fluids.
Refer to Special Publication, NENG2500, "Caterpillar Dealer Service
Tool Catalog" for tools and supplies suitable to collect and contain
fluids on Caterpillar products.
Dispose of all fluids according to local regulations and mandates.
Personal injury can result from hydraulic oil pressure and hot oil.
Hydraulic oil pressure can remain in the hydraulic system after the
engine has been stopped. Serious injury can be caused if this pressure is
not released before any service is done on the hydraulic system.
Make sure all of the work tools have been lowered to the ground, and
the oil is cool before removing any components or lines. Remove the oil
filler cap only when the engine is stopped, and the filler cap is cool
enough to touch with your bare hand.
1. Thoroughly clean the outside of the travel motor and the final drive prior to disassembly.
2. Remove the sprocket from the final drive and the travel motor. The weight of the sprocket is
approximately 39 kg (86 lb).
3. Mark the alignment of the travel motor and the final drive for reassembly purposes. The
parts must be reinstalled in the original locations.
4. Steps 5 through 11 are for the removal of the travel counterbalance valve.
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4. Illustration 1 g00940682
5. Use Tooling (A) and a suitable lifting device to position the final drive and the travel motor
onto Tooling (B) . The combined weight of the final drive and travel motor is approximately
160 kg (353 lb).
6. Drain the oil from the final drive into a suitable container for storage or for disposal. Refer
to Operation and Maintenance Manual, "Capacities (Refill)" for the capacity of the final
drive.
7. Remove fittings (1) . Remove plug (2) from travel brake valve (3) .
8. Remove bolts (4) that secure travel brake valve (3) to the final drive.
Personal injury can result from being struck by parts propelled by a
released spring force.
Make sure to wear all necessary protective equipment.
Follow the recommended procedure and use all recommended tooling to
release the spring force.
9. Use two persons to remove travel brake valve (3) from the final drive. The weight of travel
brake valve (3) is approximately 27 kg (60 lb).
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5. Illustration 2 g00940716
10. Remove valve plate (5) and O-ring seal (2) .
Illustration 3 g01405139
11. Use Tooling (D) to remove bearing (7) .
Disassembly of the Travel Counterbalance Valve
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6. Illustration 4 g01405725
Personal injury can result from parts and/or covers under spring
pressure.
Spring force will be released when covers are removed.
Be prepared to hold spring loaded covers as the bolts are loosened.
1. Position the counterbalance valve, as shown. Remove plug (8) and adapter (9) .
Illustration 5 g01405227
(8) Plug
(9) Adapter
2. Remove spring (10) and spool (11) .
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7. Illustration 6 g01405232
3. Remove relief valve assemblies (12) .
Illustration 7 g01405243
Sudden release of spring force can cause injury.
To prevent the possibility of injury, follow the procedure to relieve the
spring pressure.
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8. 4. Remove seat (13) . Seat (13) is pressed onto valve (17) . Use new parts if seat (13) or valve
(17) is damaged. Do not disassemble these components. Make sure that you reuse the other
component.
5. Remove backup ring (14) and O-ring seal (15) .
6. Remove O-ring seal (22) .
Personal injury can result from being struck by parts propelled by a
released spring force.
Make sure to wear all necessary protective equipment.
Follow the recommended procedure and use all recommended tooling to
release the spring force.
7. Remove nut (20) .
8. Remove screw (27) .
9. Remove stopper (26) . Remove backup ring (19) and O-ring seal (18) from stopper (19) .
10. Remove valve (21) , piston (25) , and spring (16) from the housing.
11. Remove backup ring (23) and O-ring seal (24) from piston (25) .
Illustration 8 g01405284
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9. Personal injury can result from being struck by parts propelled by a
released spring force.
Make sure to wear all necessary protective equipment.
Follow the recommended procedure and use all recommended tooling to
release the spring force.
12. Remove covers (28) and the O-ring seals.
Illustration 9 g01405299
(28) Cover
13. Remove springs (29) , guides (30) , and spool assembly (31) .
Illustration 10 g01405345
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10. Personal injury can result from being struck by parts propelled by a
released spring force.
Make sure to wear all necessary protective equipment.
Follow the recommended procedure and use all recommended tooling to
release the spring force.
14. Remove valve (32) , spring (33) , and ball (34) from one end of spool (35) . Repeat for the
other end of spool (35) .
Illustration 11 g01405633
Personal injury can result from being struck by parts propelled by a
released spring force.
Make sure to wear all necessary protective equipment.
Follow the recommended procedure and use all recommended tooling to
release the spring force.
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11. 15. Remove plug (36) , spring (38) , and piston (39) from both sides of the housing assembly.
16. Remove O-ring seal (37) from each plug (36) .
Note: Remove the remaining allen head bolts from the housing assembly for cleaning
purposes, if necessary. Each allen head bolt has an O-ring seal. Check the O-ring seal for
wear or for damage. Replace the O-ring seal, if necessary.
Disassembly of the Travel Motor
Illustration 12 g01405794
1. Remove O-ring seal (40) and spring (41) .
Illustration 13 g01405828
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12. 2. Install Tooling (C) onto piston assembly (42) . Use Tooling (C) and a suitable driver to
remove piston assembly (42) from body (43) .
Illustration 14 g01405855
3. Remove O-ring seals (45) and (46) from piston assembly (42) . Remove backup rings (44)
and (47) from piston assembly (42) .
Illustration 15 g01405867
4. Use suitable drivers or a suitable lever to remove guide assembly (48) .
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13. Illustration 16 g01405885
5. Remove O-ring seal (49) and backup ring (50) from guide assembly (48) .
Illustration 17 g01406117
6. Remove four separator plates (51) and four friction plates (52) . Note the alternating order
of separator plates (51) and friction plates (52) for assembly purposes.
Note: Do not allow the components of barrel assembly (53) to come apart while you
remove barrel assembly (53) . The components of barrel assembly (53) must be reinstalled
into the original positions.
Note: Oil will drain from the final drive. Place a suitable container under the final drive for
storage or disposal. Refer to Operation and Maintenance Manual, "Capacities (Refill)" for
the fluid capacity of the final drive.
7. Position the final drive horizontally.
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14. 8. Remove barrel assembly (53) .
Illustration 18 g01406180
Note: Mark the component locations for assembly purposes before you disassemble barrel
assembly (53) .
9. Remove piston assemblies (54) and retainer (55) from barrel assembly (53) .
Illustration 19 g01406210
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15. Personal injury can result from being struck by parts propelled by a
released spring force.
Make sure to wear all necessary protective equipment.
Follow the recommended procedure and use all recommended tooling to
release the spring force.
10. Remove retainer (56) , spacer (57) , and springs (58) from barrel assembly (53) .
Illustration 20 g01406263
11. Put location marks on cam plate (59) for assembly purposes. Make sure that the thick end of
cam plate (59) is adjacent to the opening that is across body (43) . Remove cam plate (59) .
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16. Illustration 21 g01406329
Illustration 22 g01406338
Personal injury can result from being struck by parts propelled by a
released spring force.
Make sure to wear all necessary protective equipment.
Follow the recommended procedure and use all recommended tooling to
release the spring force.
12. Remove piston (60) and spring (62) .
13. Remove key (61) .
Disassembly of the Final Drive
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17. Illustration 23 g01406376
1. Use a suitable lifting device to position the final drive on Tooling (B) , as shown. The
weight of the final drive is approximately 200 kg (441 lb).
2. Remove plugs (63) . Remove the O-ring seals from plugs (63) . Check the O-ring seals for
wear or for damage. Replace the O-ring seals, if necessary.
3. Remove bolts (65) . Use a suitable chisel to remove cover (64) .
Illustration 24 g01406386
4. Raise the temperature of bolts (66) in order to loosen the thread sealant.
5. Remove bolts (66) and plate (67) .
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18. Illustration 25 g01406397
6. Remove sun gear (68) .
Illustration 26 g01406400
7. Attach Tooling (A) and a suitable lifting device to carrier assembly (69) . Remove carrier
assembly (69) , planetary gear assembly (70) , and bearing assembly (71) as a unit.
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19. Illustration 27 g01406789
8. Remove planetary gear (70) and bearing assembly (71) from carrier assembly (69) . Repeat
for the remaining planetary gears (70) and bearing assemblies (71) .
Illustration 28 g01406822
9. Remove sun gear (72) .
10. Raise the temperature of bolts (73) in order to loosen the thread sealant. Remove bolts (73) .
Remove plate (74) .
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20. Illustration 29 g01406850
11. Remove retaining ring (75) from sun gear (72) . Check retaining ring (75) for wear or for
damage. Replace retaining ring (75) , if necessary.
Illustration 30 g01406853
12. Remove planetary gear (76) .
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21. Illustration 31 g01406875
13. Remove bearing (77) , race (78) , and thrust washer (79) .
14. Repeat Steps 12 and 13 in order to remove the remaining planetary gear assemblies.
Illustration 32 g01406882
15. Remove bolt (80) and plate (81) .
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22. Illustration 33 g01406885
Illustration 34 g01406886
16. Use Tooling (H) to remove nut (82) .
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23. Illustration 35 g01406906
17. Install Tooling (A) and a suitable lifting device to housing (83) . The weight of housing (83)
is approximately 35 kg (77 lb).
18. Remove housing (83) from body assembly (84) .
Illustration 36 g01406912
19. Remove Duo-cone seal gp (85) from the body assembly and the housing.
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24. Thank you very much for
your reading. Please Click
Here. Then Get COMPLETE
MANUAL. NO WAITING
NOTE:
If there is no response to
click on the link above,
please download the PDF
document first and then
click on it.
25. Illustration 37 g01407100
20. Remove both bearings (86) from housing (83) .
Illustration 38 g01407089
21. Remove both bearing races (87) from housing (83) .
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26. Illustration 39 g01407115
22. Position body assembly (84) horizontally. Remove shaft assembly (88) , the bearing, and the
retaining ring.
Illustration 40 g01407144
23. Use Tooling (G) to remove retaining ring (89) from shaft assembly (88) .
Illustration 41 g01407161
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27. 24. Use Tooling (E) , Tooling (F) , and a suitable press to remove bearing (90) .
Illustration 42 g01407166
25. Remove lip seal (91) from the body assembly.
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All Rights Reserved.
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