This document provides instructions for disassembling and assembling the track roller frame of a D8R track-type tractor. The disassembly procedure involves removing 29 components including idlers, rollers, retainers, seals, bearings and pins. The assembly procedure reverses the disassembly steps and includes installing pads, a recoil spring, track adjuster and lubricating pins before installing rollers, guides and retainers. Precise positioning of parts is required and tools are needed to apply pressure and contain fluids.
𝘼𝙣𝙩𝙞𝙦𝙪𝙚 𝙋𝙡𝙖𝙨𝙩𝙞𝙘 𝙏𝙧𝙖𝙙𝙚𝙧𝙨 𝙞𝙨 𝙫𝙚𝙧𝙮 𝙛𝙖𝙢𝙤𝙪𝙨 𝙛𝙤𝙧 𝙢𝙖𝙣𝙪𝙛𝙖𝙘𝙩𝙪𝙧𝙞𝙣𝙜 𝙩𝙝𝙚𝙞𝙧 𝙥𝙧𝙤𝙙𝙪𝙘𝙩𝙨. 𝙒𝙚 𝙝𝙖𝙫𝙚 𝙖𝙡𝙡 𝙩𝙝𝙚 𝙥𝙡𝙖𝙨𝙩𝙞𝙘 𝙜𝙧𝙖𝙣𝙪𝙡𝙚𝙨 𝙪𝙨𝙚𝙙 𝙞𝙣 𝙖𝙪𝙩𝙤𝙢𝙤𝙩𝙞𝙫𝙚 𝙖𝙣𝙙 𝙖𝙪𝙩𝙤 𝙥𝙖𝙧𝙩𝙨 𝙖𝙣𝙙 𝙖𝙡𝙡 𝙩𝙝𝙚 𝙛𝙖𝙢𝙤𝙪𝙨 𝙘𝙤𝙢𝙥𝙖𝙣𝙞𝙚𝙨 𝙗𝙪𝙮 𝙩𝙝𝙚 𝙜𝙧𝙖𝙣𝙪𝙡𝙚𝙨 𝙛𝙧𝙤𝙢 𝙪𝙨.
Over the 10 years, we have gained a strong foothold in the market due to our range's high quality, competitive prices, and time-lined delivery schedules.
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Women and Youth are encouraged to apply even if you don't fall in those sectors.
Fleet management these days is next to impossible without connected vehicle solutions. Why? Well, fleet trackers and accompanying connected vehicle management solutions tend to offer quite a few hard-to-ignore benefits to fleet managers and businesses alike. Let’s check them out!
Ever been troubled by the blinking sign and didn’t know what to do?
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Save them for later and save the trouble!
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What Does the PARKTRONIC Inoperative, See Owner's Manual Message Mean for You...Autohaus Service and Sales
Learn what "PARKTRONIC Inoperative, See Owner's Manual" means for your Mercedes-Benz. This message indicates a malfunction in the parking assistance system, potentially due to sensor issues or electrical faults. Prompt attention is crucial to ensure safety and functionality. Follow steps outlined for diagnosis and repair in the owner's manual.
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Discover why your Porsche 911 headlights might flicker out unexpectedly. From aging bulbs to electrical gremlins and moisture mishaps, we're delving into the reasons behind the blackout. Stay tuned to illuminate the road ahead and ensure your lights shine bright for safer journeys.
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5 Warning Signs Your BMW's Intelligent Battery Sensor Needs AttentionBertini's German Motors
IBS monitors and manages your BMW’s battery performance. If it malfunctions, you will have to deal with an array of electrical issues in your vehicle. Recognize warning signs like dimming headlights, frequent battery replacements, and electrical malfunctions to address potential IBS issues promptly.
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"Trans Failsafe Prog" on your BMW X5 indicates potential transmission issues requiring immediate action. This safety feature activates in response to abnormalities like low fluid levels, leaks, faulty sensors, electrical or mechanical failures, and overheating.
2. Shutdown SIS
Previous Screen
Product: TRACK-TYPE TRACTOR
Model: D8R TRACK-TYPE TRACTOR 7XM
Configuration: D8R Track-Type Tractor 7XM00001-UP (MACHINE) POWERED BY 3406 Engine
Disassembly and Assembly
D8R Track-Type Tractor Power Train
Media Number -SENR8327-11 Publication Date -01/08/2018 Date Updated -17/08/2018
i01022271
Track Roller Frame - Disassemble
SMCS - 4151-015
Disassembly Procedure
Table 1
Required Tools
Tool Part Number Description Qty
A
0S-1587 Bolt (1/2 inch by 13 by 1 3/4 inch) 1
1F-7958 Nut (1/2 inch by 13) 1
B Bar Stock (1/2 inch by 2 inch by 10 inch) 4
C
1P-0520 Driver Gp 1
8E-2898 Plate 1
1H-3110 Bearing Puller 1
D FT-2213 Strap (Group) 1
F
9U-6600 Manual Pump 1
1U-5197 Hydraulic Cylinder 1
1P-1838 Adapter (1 1/4 inch by 12) 1
6V-2108 Sleeve 1
6V-3187 Adapter (1 1/4 inch by 12) 1
5P-4184 Tool Stud (1 1/4 inch by 12 by 18 inch) 1
G FT-1713 Wedge 2
H 136-1452 Internal Tip Pliers 1
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3. Start By:
a. Remove the track roller frame. See the procedure in Disassembly and Assembly, "Track
Roller Frame - Remove" in this module.
Personal injury can result from performing service on the track roller
frame.
Refer to Special Instruction, SMHS8273 for inspection and removal
procedures before performing any service.
Personal injury or death can result from lifting a heavy assembly.
The heavy assembly can fall if using an incorrect hoist to lift the load.
Be sure the hoist has the correct capacity to lift a heavy assembly.
Approximate weight of the assembly is given below.
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, "Dealer Service Tool
Catalog" for tools and supplies suitable to collect and contain fluids on
Cat®
products.
Dispose of all fluids according to local regulations and mandates.
1. Place the track roller frame on a level surface. Support each end of the track roller frame
with the track guides.
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4. Illustration 1 g00621097
2. Remove O-ring seal (2) from seal retainer (3).
3. Remove eight bolts (1) and retainer (3) from the track roller frame.
4. Remove the O-ring seal from retainer (3) which seals between the retainer and the track
roller frame.
Illustration 2 g00617654
Illustration 3 g00617658
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5. 5. Position tool (A) according to Illustration 2. Rotate the nut in order to apply pressure to
plate (4). When plate (4) and retainer (5) are separated sufficiently, insert tool (B) in order
to keep the plate and the retainer separate. Insert bar stock (B) at four equally spaced
locations around the retainer.
6. Use a soft hammer around the outer diameter of the retainer to loosen and remove plate (4).
Illustration 4 g00617660
Note: The 8E-2898 Plate is the same component that is used on the end of the pivot shaft.
Note: Mark the retainers before disassembly for correct assembly in the original positions.
7. Use a hydraulic press and tool (C) to remove retainer (6) from retainer (5).
Illustration 5 g00617661
8. Use a hydraulic press to remove seal (7) from retainer (5).
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6. Illustration 6 g00617705
NOTICE
When these components are removed, the components are damaged or
destroyed.
9. Inspect bearings (8) on each side of the track roller frame for wear and for damage. Remove
the two bearings from the track roller frame, if necessary.
Illustration 7 g00621295
Note: The track roller frame weighs 4350 kg (9600 lb).
10. Use a suitable lifting device to position the track roller frame on wood blocks. See
Illustration 7. Remove tool (D).
11. Mark the track idlers, the caps, and the shims, so that the components are assembled in the
original locations. Remove the track idlers.
Reference: Refer to Disassembly and Assembly, "Idler - Remove" in this module.
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7. Illustration 8 g00621298
12. Mark the track rollers, the caps, and the track roller frame, so that the single flange rollers
and the double flange rollers are installed in the original locations.
Reference: Refer to the procedure in Disassembly and Assembly, "Track Roller - Remove"
in this module.
Note: The single flange track roller weighs 88 kg (195 lb). The double flange track roller
weighs 98 kg (215 lb).
13. Fasten a suitable lifting device to track roller (14). Remove four bolts (12) and two caps
(13). Remove the track roller from the minor bogie. Repeat this procedure for all of the
track rollers.
Illustration 9 g00621299
14. Remove bolts (16) and track guides (15) from the major bogies.
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8. Illustration 10 g00621306
Note: Removal of the plugs and stoppers releases oil.
15. Use a variable speed drill to remove plug (17) and stopper (19) from each end of cartridge
pin (18).
Illustration 11 g00621307
16. Install tool (F) on the major bogie. Suspend the tool by a lifting device. See Illustration 11.
Remove cartridge pin (18).
17. Remove minor bogie (20) from the major bogie.
18. Repeat Steps 15 through 17 for the remainder of the minor bogies.
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9. Illustration 12 g00617709
19. Install tool (G) between the track roller frame and the major bogie in order to hold the
components in place during the removal of the cartridge pins.
Illustration 13 g00621310
20. Use tool (H) to remove retaining ring (21) from each side of the track roller frame.
Illustration 14 g00621311
21. Install one 5/8 inch by 11 NC eyebolt (22) in plate (23). Remove plate (23) from each side
of the track roller frame.
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10. Illustration 15 g00621319
Note: Removal of the plugs and stoppers releases oil.
22. Use a variable speed drill to remove plug (24) and stopper (25) from each end of cartridge
pin (26). Remove plugs (27) from each side of the track roller frame.
Illustration 16 g00621320
Note: The major bogie weighs 190 kg (420 lb).
23. Fasten a suitable lifting device to major bogie (28).
Illustration 17 g00621321
24. Install tool (F) on the major bogie. Suspend the tool by a lifting device. See Illustration 17.
Remove cartridge pins (26).
25. Repeat Steps 19 through 24 for the remainder of the major bogies.
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11. Illustration 18 g00621322
26. Remove pad assemblies (29) from the track roller frame and from the major bogies.
27. Remove the front track roller frame from the rear track roller frame.
Reference: Refer to Disassembly and Assembly, "Track Roller Frame (Front) - Remove" in
this module.
28. Remove the track adjuster.
Reference: Refer to Disassembly and Assembly, "Track Adjuster - Remove" in this
module.
29. Remove the recoil spring.
Reference: Refer to Disassembly and Assembly, "Recoil Spring - Remove" in this module.
Copyright 1993 - 2020 Caterpillar Inc.
All Rights Reserved.
Private Network For SIS Licensees.
Thu Jan 30 01:04:25 UTC+0800 2020
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12. Shutdown SIS
Previous Screen
Product: TRACK-TYPE TRACTOR
Model: D8R TRACK-TYPE TRACTOR 7XM
Configuration: D8R Track-Type Tractor 7XM00001-UP (MACHINE) POWERED BY 3406 Engine
Disassembly and Assembly
D8R Track-Type Tractor Power Train
Media Number -SENR8327-11 Publication Date -01/08/2018 Date Updated -17/08/2018
i03464703
Track Roller Frame - Assemble
SMCS - 4151-016
Assembly Procedure
Table 1
Required Tools
Tool Part Number Description Qty
D FT-2213 Strap (Group) 1
H 136-1452 Internal Tip Pliers 1
J
9U-6600 Hand Hydraulic Pump 1
5P-4776 Tool Stud (1 inch by 14 by 18 inch) 2
3K-5234 Hard Washer (6 mm by 49 mm) 2
1A-1935 Nut (1 inch by 14) 2
6V-3175 Double Acting Cylinder 1
6V-4871 Reaction Bar 1
K
1F-7958 Nut (1/2 inch by 13) 4
- Threaded Rod (1/2 inch by 13 by 8 inch) 2
5P-8245 Hard Washer (3 mm by 25.5 mm) 4
L
8T-3053 Ring 1
6V-3141 Plate 1
M 5P-7504 Oil -
N 5P-3931 Anti-Seize Compound -
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13. When you are using hydraulic cylinders and puller studs, always ensure
that the rated capacity of the puller stud meets or exceeds the rated
capacity of the hydraulic cylinder. If the puller stud does not meet or
exceed the rated capacity of the hydraulic cylinder, a sudden failure of
the puller stud could occur. The sudden failure of the puller stud could
result in personal injury or death.
NOTICE
Do not use threaded rods that have not been hardened as tooling with
hydraulic cylinders. The maximum rated tonnage should be stamped
on one end of the puller studs. Do not use threaded rods that have not
been stamped with the rated tonnage.
Reference: Refer to Specifications, "Bogie Suspension" in the Service Manual for your machine.
1. Install the recoil spring.
Reference: Refer to Disassembly and Assembly, "Recoil Spring - Install" in this module.
2. Install the track adjuster.
Reference: Refer to Disassembly and Assembly, "Track Adjuster - Install" in this module.
3. Install the front track roller frame in the rear track roller frame.
Reference: Refer to Disassembly and Assembly, "Track Roller Frame (Front) - Install" in
this module.
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14. Illustration 1 g00621322
4. Install pad assemblies (29) on the track roller frame and on the major bogies.
Illustration 2 g00621320
Note: The weight of the major bogie is approximately 190 kg (420 lb).
5. Fasten a suitable lifting device to major bogie (28). Install the major bogie in the track roller
frame.
6. Add 60 ± 3 cc of Tooling (M) to the cartridge pins. Install the rubber stoppers to
3.0 ± 1.0 mm (0.118 ± 0.039 inch) below the surface of the pin.
7. Apply Tooling (N) to the bores of the major bogie and to the bores of the track roller frame.
NOTICE
Install the cartridge pin with the mark (X) on the outside of the track
roller frame. Position the mark (X) to the top or to the bottom of the
vertical centerline.
8. Install the cartridge pins in both sides of the track roller frame.
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15. 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
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click on it.
16. Illustration 3 g00621351
9. Position plate (23) and Tooling (J), as shown. The step in plate (23) should be oriented
toward Tooling (J).
10. Install the cartridge pin in the major bogie. Plate (23) must be level with the groove in the
track roller frame.
Illustration 4 g00621310
11. Install plugs (27) in each side of the track roller frame.
12. Use Tooling (H) to install retaining ring (21) on each side of the track roller frame.
13. Repeat Steps 5 through 12 for the remainder of the major bogies.
Illustration 5 g00621352
Note: The minor bogie (20) must be installed with the part number or the words THIS SIDE
OUT toward the outside of the major bogie.
14. Position minor bogie (20) in the major bogie.
15. Add 60 ± 3 cc of Tooling (M) to the cartridge pins. Install the rubber stoppers to a depth of
3.0 ± 1.0 mm (0.12 ± 0.04 inch) below the surface of the pin.
16. Apply Tooling (N) to the bores of the major bogie and to the bores of the minor bogie.
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17. Illustration 6 g00621353
NOTICE
Install the cartridge pin with the mark (X) on the outside of the track
roller frame. Position the mark (X) to the top or to the bottom of the
vertical centerline.
17. Use Tooling (J) to install cartridge pin (18) in the major bogie and in the minor bogie. The
cartridge pin must be level with the outside surface of the major bogie.
18. Repeat Steps 14 through 17 for the remainder of the minor bogies.
Illustration 7 g00621299
19. Install track guides (15) and bolts (16) on the major bogies. Tighten the bolts to a torque of
475 ± 50 N·m (350 ± 37 lb ft).
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18. Illustration 8 g00621298
20. Install single flange rollers and double flange rollers in the original locations.
Reference: Refer to Specifications, "Track Rollers" in the Service Manual for your machine
for the correct installation of the track rollers.
Note: The single flange track roller weighs approximately 88 kg (195 lb). The double flange
track roller weighs approximately 98 kg (215 lb).
21. Fasten a suitable lifting device to track roller (14). Install the track roller on the minor bogie.
Install four bolts (12) and two caps (13). Repeat this procedure for all of the track rollers.
22. Align the holes in the shafts with the dowels in caps (13). Install caps (13) and bolts (12).
Tighten the bolts to a torque of 750 ± 70 N·m (550 ± 50 lb ft).
23. Install the track idlers.
Reference: Refer to Disassembly and Assembly, "Idler - Install" in this module.
Illustration 9 g00621295
24. Install Tooling (D) on the major bogies.
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19. Illustration 10 g00617705
Note: Lower the temperature of the bearings before installation.
25. If two bearings (8) were removed, install two new bearings in the sides of the track roller
frame.
Illustration 11 g00617711
26. Apply Tooling (N) to the outer diameter of seal (7). Use a hydraulic press to install seal (7)
in retainer (5).
Illustration 12 g00617712
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