Caterpillar cat d6 r track type tractor (prefix 1rw) service repair manual (1rw00001 and up)

Service Repair Manual
Models
D6R TRACK-TYPE TRACTOR

Shutdown SIS
Previous Screen
Product: TRACK-TYPE TRACTOR
Model: D6R TRACK-TYPE TRACTOR 1RW
Configuration: D6R Track-Type Tractor Differential Steering 1RW00001-UP (MACHINE) POWERED BY 3306 Engine
Disassembly and Assembly
D6R TRACK-TYPE TRACTOR POWER TRAIN
Media Number -SENR9496-02 Publication Date -01/11/2004 Date Updated -23/07/2018
SENR94960013
Idlers
SMCS - 4159-010; 4159-015; 4159-016
Remove & Install Idlers
Start By:
a. separate track
1. The weight of idler (1) is 143 kg (315 lb). Fasten a hoist and Tool (A) to idler (1) remove two
bolts (3) and washers from each side of the idler.
2. Remove one cap (2) from each side.
3. Lower idler (1) slightly and remove.
1/8D6R Track-Type Tractor Differential Steering 1RW00001-UP (MACHINE) POWER...
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NOTE: It may be necessary to raise the front of the roller frame with a small jack to provide
clearance to remove the roller.
4. Remove one block (4) from each side.
NOTE: The following steps are for installation of the idler.
5. Fasten a hoist and Tool (A) to idler (1). Put one block (4) on each side of the idler in position on
the dowel.
NOTICE
The hole in idler shaft (5) must be aligned with pin (6) in cap (2).
6. Put the idler in position on roller frame. Align the hole in idler shaft (5) with pin (6) in cap (2).
Install cap (2) with bolts (3) and washers. Tighten the bolts to a torque of 570 ± 80 N·m (420 ± 59
lb ft). Remove Tooling (A).
End By:
a. connect track
Disassemble Idlers
Start By:
a. remove idlers
1. Use a slow speed drill and a 12.7 mm (.50 in) drill bit, and remove plug (4) and stopper (3)
from the end of the shaft.

NOTICE
The shaft will be free to fall when the retainers are removed.
2. Remove eight washers and bolts (2) and retainer (1) from both sides of the idler.
3. Remove O-ring seal (6) from retainer (1).
NOTE: If the Duo-Cone seals are to be used again, put identification marks on the seals so they
can be assembled and installed in their original position.
4. Put identification marks on the Duo-Cone seal (5). Remove Duo-Cone seal (5) from retainer
(1).
5. Put identification marks on Duo-Cone seal (7). Remove Duo-Cone seal (7) and toric stabilizer
(9) from both sides of shaft (8).
6. Remove washer (10) from both ends of shaft (8).

7. Pull shaft (8) out of the idler far enough to fasten a hoist to the shaft.
8. Fasten a hoist to shaft (8). Remove the shaft from idler assembly (11). The weight of the shaft is
21 kg (46 lb).
Assemble Idlers
1. Clean and inspect all parts for wear or damage. Replace all parts that are worn or damaged.
2. Make sure all parts are free of oil film, dust or other foreign material. Use Isopropyl Alcohol
and a clean cloth or paper towel for cleaning.
NOTICE
The bearing in idler assembly (1) can be damaged when shaft (2) is
installed in the idler.
3. Fasten a hoist to shaft (2). Carefully put shaft (2) in position in idler assembly (1).

4. Put toric stabilizers (3) in position on both ends of shaft (2).
NOTE: See Installation of Duo-Cone Floating Seals before installation of any of the Duo-Cone
seals.
5. Put toric ring (4) in position in seal ring (5). Make sure the toric ring is straight in seal ring (5).
6. Put ring (4) and seal ring (5) in Isopropyl Alcohol until the entire toric ring is wet.
7. Use Tool (A) to install the toric ring and seal ring (5) on shaft (2). Install the rings until Tool
(A) makes contact with the end of shaft (2).
8. Use a depth micrometer (6) to measure the distance between seal ring (5) and the shaft at four
locations 90 degrees apart. The difference in these four measurements must not be more than 0.80
mm (.031 in).
9. If adjustments to seal ring (5) are necessary, use Tool (A) to adjust the seal ring on the shaft.
10. Repeat Steps 5 through 9 to install the toric ring and seal ring on the other side of the idler.

11. Put O-ring seal (8) in position on seal ring (7). Make sure the O-ring seal is straight on the seal
ring.
12. Lubricate the O-ring seal on the seal ring with Isopropyl Alcohol.
13. Put the O-ring seal and seal ring (7) in position on retainer (9). Use Tool (A) and an arbor
press to install the seal ring in the retainer. Install O-ring seal and seal ring until the O-ring seal
makes contact with the bottom of the retainer.
14. Use depth micrometer (6) to measure the distance from the surface of retainer (9) to the
surface of seal ring (7) at four locations 90 degrees apart. The difference in these measurements
must not be more than 0.30 mm (.012 in).
15. If adjustments to the seal are necessary, use Tool (A) to adjust the seal ring in the retainer.
16. Put O-ring seal (10) in position in the groove in retainer (9).
17. Put Vaseline or grease on O-ring seal (10) to it in place on the retainer.

18. Install washer (11) on the end of shaft (2).
19. Make sure the faces of the seal rings are clean and free of any foreign material.
20. Put a thin film of clean oil on the faces of the seal rings.
21. Put Tool (B) in position in the bores of retainer (9) and the seal ring. Use Tool (B) to put the
seal ring and retainer (9) in their original position on the idler assembly.
22. Use Tool (B) to hold the seal ring and retainer (9) in the correct position on the idler assembly.
23. Install bolts (12). Tighten the bolts evenly to keep retainer (9) in alignment with the idler
assembly.
24. Tighten bolts (12) to a final torque of 70 ± 15 N·m (52 ± 11 lb ft).
25. Repeat Steps 11 through 24 to install the retainer on the other side of the idler.
26. Use Tool (D) to pressure test the idler assembly as follows:
a. Put air (free of water) under a pressure of 280 kPa (41 psi) in the idler shaft.
b. If there is a pressure reduction in ten seconds or less, there is a leak in the idler assembly. The
idler assembly must be disassembled and checked.

27. Use Tool (E) to check the end play of shaft (2). The end play must be 0.25 mm to 0.85 mm
(.010 to .034 in).
28. Fill idler shaft (2) with 650 ± 15 mL (22.1 ± .5 oz.) of SAE 30W oil.
29. Put clean oil on stopper (13). Install the stopper in the end of shaft (2). Install the stopper until
it is 10 ± 4 mm (.393 ± .16 in) below the surface of the end of the shaft.
30. Use Tool (C) to install plug (14) in the stopper. Install the plug so it is even with the end of the
stopper.
End By:
a. install idler
Copyright 1993 - 2020 Caterpillar Inc.
All Rights Reserved.
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Mon Apr 20 12:31:01 UTC+0800 2020

Shutdown SIS
Previous Screen
SENR94960014
Equalizer Bar
SMCS - 7206-011; 7206-012; 7206-017
Remove Equalizer Bar

*Increase thread to 2 1/4" on both ends of 9H1080 stub
Start By:
a. remove track roller frame
1. Put Tooling (A) in position under the side of the equalizer bar that the track roller frame was not
removed. Push the side of the equalizer bar up and remove bar stock (1), that was installed
between the frame and the equalizer bar, when the track roller frame was removed.

2. Put enough wooden blocks (2) under the track roller frame so that when Tooling (A) is
removed, the equalizer bar does not make contact with the frame on the side that the track roller
frame was removed. Remove Tooling (A).
3. Remove retaining bolt (3) not shown. Install Tooling (B) on the pin. Make sure the FT1713
Wedges [part of Tooling (B)] are put in position between the equalizer bar and the saddle to
prevent the pin from binding as it is removed. Use Tooling (B) and remove the equalizer bar pin.
4. Put the FR1713 Wedges [part of Tooling (D)] in between the equalizer bar and the saddle to
prevent the pin from binding as it is removed.
5. Remove three bolts (4) and the retainer plate.
6. The weight of the equalizer bar is 143 kg (315 lb). Put Tooling (C) in position under the
equalizer bar and fasten wire (5) to Tooling (C) so the equalizer bar will not fall when it is
removed.

7. Install Tooling (D) and remove the equalizer bar center pin. Remove Tooling (D).
8. Lower the equalizer bar with Tooling (C). Remove spacer (6) from each side of the equalizer
bar and remove the bar from under the machine.
Install Equalizer Bar
1. Position the equalizer bar on Tooling (C). Fasten the equalizer bar with wire (5) to Tooling (C).
Put the equalizer bar in position under the machine.
2. Put a small amount of 5P-0960 Multipurpose Type Grease on the two lip seals and on the center
equalizer bar bearing.
3. Put two spacers (6) in position, one on each side of the equalizer bar.

4. Put the equalizer bar in position in the equalizer bar saddle with Tooling (C).
NOTICE
The 2P2506 Anti-Seize Compound should not be permitted to get in the
bearing area of the equalizer bar.
5. Put 2P-2506 Anti-Seize Compound in the front bore of the equalizer bar saddle and on the rear
diameter of equalizer bar center pin (7).
6. Align the bores in the equalizer bar saddle with the bore in the equalizer bar. Install equalizer
bar center pin (7). Make sure the flats on the end of the pin are horizontal so the retainer plate can
be installed properly.
7. Put the retainer plate in position and install three bolts (4). Remove wire (5) and Tooling (C).
8. Align the bore in the equalizer bar and the bores in the track roller frame. Install pin (8) and
retaining bolt (3).

9. Use Tooling (A) to raise the equalizer bar and track roller frame. Remove wooden blocks (2)
from under the track roller frame.
10. Put bar stock (1), that was removed earlier, between the equalizer bar and the frame, as shown.
It will put the equalizer bar in its original position so the track roller frame can be installed. Lower
the equalizer bar and track roller frame. Remove Tooling (B).
End By:
a. install track roller frame
Disassemble & Assemble Equalizer Bar
Start By:
a. remove equalizer bar

1. Use a hammer and punch to bend the outside ring of seals (1) toward the center. Do this in
several places and remove seals (1).
2. Use Tooling (A) and remove the center bearing from the equalizer bar.
3. Use a hammer and a punch to bend the outside rings of lip seals (2) toward the center. Do this
in several places and remove seals (2). Do this at both ends of the equalizer bar.
4. Use Tooling (B) and remove the retaining rings from each side of the spherical bearings.

5. Use Tooling (C) and remove end bearings (3) from the equalizer bar.
NOTE: The following Steps are for assembly of the equalizer bar.
6. Use Tool (B) and install one of the retaining rings in the end of the equalizer bar. Use Tooling
(D) and install bearing (3) against the retaining ring. Use Tool (B) and install the other retaining
ring.
7. Repeat Step 6 at the opposite end of the equalizer bar. Put 5P0960 Multipurpose Type Grease
on the spherical surface of bearings (3) and in the pin bores.
8. Put 5P3413 Pipe Sealant with Teflon on the inner diameter surfaces of the equalizer bar and
install lip seals (2) at the center bore.
9. Put 6V1541 Quick Cure Primer on the center pin bore of the equalizer bar and allow it to dry.
Put 9S3265 Retaining Compound on the center bore.
10. Use Tooling (E) and install the center bearing in the equalizer bar. The bearing should be
installed so it is the same distance from the front and the rear of the equalizer bar.
11. Put 5P3413 Pipe Sealant with Teflon on the inner diameter of the equalizer bar and install
seals (1) on each side of the bearing.
End By:
a. install equalizer bar
Mon Apr 20 12:31:50 UTC+0800 2020

Shutdown SIS
Previous Screen
SENR94960015
Pivot Shaft (Stub Shaft)
SMCS - 4153-010
Remove & Install Pivot Shaft (Stub Shaft)
Start By:
a. remove track roller frame
1. Attach a hoist to Tooling (A). Use a nylon strap and attach it to Tooling (A).
2. The weight of stub shaft (1) is 67 kg (148 lb). Remove eight bolts (2) and the stub shaft.
NOTE: The following Steps are for installation of the stub shaft.
3. Put 5P-3931 Anti-Seize Compound on the pilot diameter that goes in the main case and frame.

4. Use a hoist and Tooling (A), put stub shaft (1) in position, and install eight bolts (2).
End By:
a. install track roller frame
Mon Apr 20 12:32:39 UTC+0800 2020

Shutdown SIS
Previous Screen
SENR94960016
Final Drive Planetary Carriers (In Chassis)
SMCS - 4092-011; 4092-012
Remove Final Drive Planetary Carriers (In Chassis)

1. Position the final drive drain plug (3) on the bottom as shown. Remove drain plug (3) and drain
approximately 11.4 liters (3 U.S. gal.) of oil from the final drive.
2. Remove the center cover. Remove the O-ring seal from the cover.
3. Use Tooling (A) and remove outer axle (2).
NOTICE
Three bolts [Tooling (B)] must be threaded in 25.4 mm (1 in) to hold
the planetary carrier.
4. Remove three equally spaced bolts that hold planetary carrier (5) to hub (4). Install Tooling (B)
in place of three bolts as shown.
5. Remove the remaining bolts (1) that hold the planetary carrier to the hub.
6. Use a pry bar and move planetary carrier (5) out of the hub as far as the bolts [Tooling (B)] will
permit.

7. Adjust the upper hanger bracket on Tooling (C) so distance (X) is 203 mm (8 in). Install lower
plate (6) so the spacers are down and toward the vertical leg of the bracket.
8. Attach a hoist to Tooling (C) and install it on the planetary carrier.
9. The weight of the planetary carrier is 132 kg (290 lb). Remove the three bolts [Tooling (B)] and
remove planetary carrier (5) from the hub. Remove the O-ring seal.
10. To disassemble the planetary carrier, see Disassemble Final Drive in this module.
Ring gear (8) will be free to fall when retainer (7) is removed. To
prevent possible personal injury, Tooling (D) and (E) must be in
position to hold ring gear (8) and the hub in position when retainer (7)
is removed.
11. Put Tooling (D) under final drive hub (4) to hold it in position when retainer (7) is removed.
Install Tooling (E) to hold ring gear (8) in position. Use the bolts that hold the planetary carrier in
position to install Tooling (E).
12. Remove the bolts and retainer (7).
13. Remove the lip seal from the end of the spindle.

Install Final Drive Planetary Carriers (In Chassis)
1. Use Tooling (F) and install lip seal (9) in the end of the spindle. The lip of the seal must be
toward the inside of the spindle. Put clean oil on the lip of the seal.
2. Put retainer (7) in position on the spindle and install the bolts that hold it. Tighten the bolts to a
torque of 135 ± 15 N·m (100 ± 11 lb ft).
3. Remove Tooling (D) and (E) from the final drive.

4. For assembly of the planetary carriers, see topic, Assemble Final Drive in this module.
5. Install the O-ring seal on the planetary carrier.
6. Use Tooling (C) and a hoist and put the planetary carrier in position on the hub. Push the
planetary carrier in until it is approximately 25.4 mm (1 in) from the hub.
7. Thread three bolts [Tooling (B)] in 25.4 mm (1 in), evenly spaced, to support the planetary
carrier. Remove Tooling (C).
8. Install bolts (1). Remove Tooling (B) and install the remaining three bolts that hold the
planetary carrier to the hub.
9. Use Tooling (A) and install outer axle (2).
10. Install the O-ring seal on the cover and install the cover on the final drive.
11. Drain plug (3) must be toward the bottom. Fill the final drive with oil to the bottom of the fill
plug. See the Operation And Maintenance Guide for the correct oil and the capacity.
Mon Apr 20 12:33:28 UTC+0800 2020

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Shutdown SIS
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SENR94960017
Final Drives
SMCS - 4050-011; 4050-012; 4050-015; 4050-016
Remove Final Drives
Start By:
a. separate track
NOTE: The final drive planetary carriers can be removed in chassis. See topic, Remove Final
Drive Planetary Carriers (In Chassis).
1. Turn the final drive until drain plug (1) is on the bottom as shown. Remove drain plug (1) and
drain approximately 13.2 liters (3.4 U.S. gal.) of oil from the final drive.

2. Remove the cover from the final drive and remove the O-ring seal from the cover.
3. Install Tooling (A) and remove the outer axle.
4. Adjust the top bracket on Tooling (B) so that dimension (X) is 213 mm (8.4 in). The lower
mounting bracket must be installed with the spacers outward as shown.
5. Remove two of the bolts from the sprocket segments. Fasten a hoist and install Tooling (B) on
the final drive.
NOTICE
Bolts (4) hold the steering clutch and brake to the main case and frame.
Do not remove bolts (4).

6. Remove bolts (2) that hold the final drive to the main case and frame.
7. The weight of the final drive is 490 kg (1075 lb). Remove four bolts (3) that hold the final drive
and steering clutch and brake together.
8. Use Tooling (B) and remove the final drive from the machine.
9. Remove the O-ring seal from either the face of the steering clutch or the final drive hub.
Install Final Drives
1. Inspect the condition of O-ring seals and replace if necessary.
2. Put the O-ring seal in position on the face of the steering clutch.
3. Fasten a hoist and install Tooling (B) on the final drive. Adjust Tooling (B) if necessary to put
the final drive in a level position.

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