This document provides step-by-step instructions for removing and repairing the differential on a Caterpillar Cat 12G motor grader. It involves removing over 30 individual components of the differential and related systems. Key steps include removing the differential from the carrier, disassembling internal gears and bearings, replacing worn parts, adjusting clearance and backlash, and reassembling the differential before reinstalling it in the carrier.
Why Is Your BMW X3 Hood Not Responding To Release CommandsDart Auto
Experiencing difficulty opening your BMW X3's hood? This guide explores potential issues like mechanical obstruction, hood release mechanism failure, electrical problems, and emergency release malfunctions. Troubleshooting tips include basic checks, clearing obstructions, applying pressure, and using the emergency release.
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.
Symptoms like intermittent starting and key recognition errors signal potential problems with your Mercedes’ EIS. Use diagnostic steps like error code checks and spare key tests. Professional diagnosis and solutions like EIS replacement ensure safe driving. Consult a qualified technician for accurate diagnosis and repair.
"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.
The Octavia range embodies the design trend of the Škoda brand: a fusion of
aesthetics, safety and practicality. Whether you see the car as a whole or step
closer and explore its unique features, the Octavia range radiates with the
harmony of functionality and emotion
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.
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.
Comprehensive program for Agricultural Finance, the Automotive Sector, and Empowerment . We will define the full scope and provide a detailed two-week plan for identifying strategic partners in each area within Limpopo, including target areas.:
1. Agricultural : Supporting Primary and Secondary Agriculture
• Scope: Provide support solutions to enhance agricultural productivity and sustainability.
• Target Areas: Polokwane, Tzaneen, Thohoyandou, Makhado, and Giyani.
2. Automotive Sector: Partnerships with Mechanics and Panel Beater Shops
• Scope: Develop collaborations with automotive service providers to improve service quality and business operations.
• Target Areas: Polokwane, Lephalale, Mokopane, Phalaborwa, and Bela-Bela.
3. Empowerment : Focusing on Women Empowerment
• Scope: Provide business support support and training to women-owned businesses, promoting economic inclusion.
• Target Areas: Polokwane, Thohoyandou, Musina, Burgersfort, and Louis Trichardt.
We will also prioritize Industrial Economic Zone areas and their priorities.
Sign up on https://profilesmes.online/welcome/
To be eligible:
1. You must have a registered business and operate in Limpopo
2. Generate revenue
3. Sectors : Agriculture ( primary and secondary) and Automative
Women and Youth are encouraged to apply even if you don't fall in those sectors.
What Could Cause The Headlights On Your Porsche 911 To Stop WorkingLancer Service
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.
Ever been troubled by the blinking sign and didn’t know what to do?
Here’s a handy guide to dashboard symbols so that you’ll never be confused again!
Save them for later and save the trouble!
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!
2. start by:
a) remove differential
1. Bend the lock away from nut (1) and loosen nut (1) with tool (A).
2/13
12G MOTOR GRADER 61M07711-12026 (MACHINE) POWERED BY 3306 ENGI...
2021/2/8
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw...
3. 2. Remove nut (1), lock (3) and washer (2).
3. Put the differential and the carrier in position as shown.
4. Remove wire (5) from the nuts on each side of the differential. Remove nuts (8).
5. Bend the locks away from bolts (6). Remove the bolts, the locks and locks (7) from the cap.
6. Remove cap (4) from the carrier.
7. Remove the dowel that holds the small cage in alignment with the cap.
8. Fasten a hoist and a strap to the differential (9) as shown. Lift the differential and remove it
from the carrier. Weight is 240 lb. (109 kg).
3/13
12G MOTOR GRADER 61M07711-12026 (MACHINE) POWERED BY 3306 ENGI...
2021/2/8
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw...
4. 9. Remove the ring and seal (10) from the carrier.
10. Remove small cage (11) from the differential. Remove the nut and the bearing cup from the
cage.
11. Remove bearing (12) from housing (14) with tooling (B).
12. Remove bolts (13) and the washers that hold housing (14) to the clutch housing. Remove
housing (14). Remove the brass washer from the inner face of housing (14).
13. Remove gear (15) from the spider gears.
14. Remove spider (18) and the gears and washers from the clutch housing.
15. Remove brass washers (16) and gears (17) from the spider.
4/13
12G MOTOR GRADER 61M07711-12026 (MACHINE) POWERED BY 3306 ENGI...
2021/2/8
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw...
5. 16. Remove the brass bearings from the gears with tooling (C).
17. Remove gear (19) from the housing.
18. Turn the bevel gear, clutch housing and the piston housing over.
19. Remove cage (20). Remove the nut, the bearing cup, the ring and the two seals from cage (20).
20. Remove bolts (21) and the washers that hold piston housing (22) to the bevel gear and the
clutch housing. Remove piston housing (22).
21. Remove bearing (23) from the piston housing with tooling (B).
22. Turn the piston housing over.
5/13
12G MOTOR GRADER 61M07711-12026 (MACHINE) POWERED BY 3306 ENGI...
2021/2/8
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw...
6. 23. Remove brass washer (24) and piston (25) from the piston housing. Remove the two seals
from the piston.
24. Remove discs (26) and disc assemblies (27) from the clutch housing.
25. Remove the pressure disc from the housing.
26. Remove pinion (28) from the carrier with tooling (D).
27. Remove bearing cups (29) and (31) from the carrier with a punch and a hammer.
28. Remove seal (30) from the carrier.
6/13
12G MOTOR GRADER 61M07711-12026 (MACHINE) POWERED BY 3306 ENGI...
2021/2/8
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw...
7. 29. Remove bearing (32) from the pinion with tooling (E).
Assemble Differential (Unlocking)
1. Heat bearing (2) in oil to a temperature of 275° F (135° C). Install bearing (2) on pinion (1).
2. Lower the temperature of the two bearing cups for the pinion. Install the bearing cups in
differential carrier (3).
7/13
12G MOTOR GRADER 61M07711-12026 (MACHINE) POWERED BY 3306 ENGI...
2021/2/8
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw...
8. 3. Install the seal in the differential carrier. Install the seal with the lip toward the bevel gear. Put a
small amount of oil on the lip of the seal.
4. Put pinion (1) in position on a block as shown. Install tooling (A) on carrier (3) and fasten a
hoist to tooling (A). Lift the carrier and put it in position over pinion (1) so bearing (2) is in its seat
in the bearing cup.
5. Heat bearing (4) in oil to a temperature of 275° F (135° C).
6. Install bearing (4) on pinion (1). Make sure the bearing is in its seat in the bearing cup. Lift the
carrier and remove the block from under the pinion. Put the carrier on the floor. Remove tooling
(A) from the carrier.
7. Install the washer, the lock and nut (5) on the pinion. Do not tighten the nut.
8. Put two .250 in. (6.35 mm) dowels in the splines of the pinion. Put the dowels in position 180°
apart. Install tooling (B) over the pinion and the dowels.
9. Check the amount of torque needed to move the pinion without any preload on the pinion
bearings. Remove the torque wrench from tooling (B).
10. Install a ratchet on tooling (B).
8/13
12G MOTOR GRADER 61M07711-12026 (MACHINE) POWERED BY 3306 ENGI...
2021/2/8
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw...
9. 11. Install tool (C) on nut (5). Tighten nut (5) with tool (C) while holding the pinion with the
ratchet. Tighten the nut enough to get a torque of 6 ± 4 lb. in. (6.9 ± 4.6 cm.kg) more than the
torque needed to turn the pinion when the bearings were not preloaded. Remove tooling (B) and
(C).
12. Put clutch housing (7) in position on the floor as shown. Put a block of wood 2 1/2in. (63.5
mm) high in the center of the housing. Put gear (6) in position on the block.
13. Put the pressure disc in position in clutch housing (7). Install the eight discs and the seven disc
assemblies in the housing starting with a disc.
NOTE: Put clean SAE 30 oil on the discs and disc assemblies (8) at installation.
14. Put the large brass washer on the face of gear (6). Make sure the hole in the washer is in
alignment with the dowel in the housing.
15. Install the seals on the outside and the inside of the piston. Install the seals so the lips are
toward the bottom of the bore for the piston in the piston housing. Put some clean SAE 30 oil on
the lips of the seals. Install the piston in housing (10).
16. Heat bearing (9) in oil to a temperature of 275° F (135° C). Install bearing (9) on the hub of
piston housing (10).
17. Put piston housing (10) and the bevel gear in position on clutch housing (7). Make sure the
holes in both housings and the bevel gear are in alignment.
9/13
12G MOTOR GRADER 61M07711-12026 (MACHINE) POWERED BY 3306 ENGI...
2021/2/8
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw...
10. 18. Install three 5/8"-11 NC forged eyebolts (12) in piston housing (10). Install the bolts and the
washers that hold the piston housing to the bevel gear and the clutch housing. Put a bar in position
as shown in the eyebolts. Tighten bolts (11) to a torque of 185 ± 10 lb. ft. (25.6 ± 1.4 mkg).
19. Remove the bar and the eyebolts.
20. Turn the housings and the bevel gear over. Be careful that gear (6) does not fall out.
21. Install the brass bearings in spider gears (14) with tool (E) and an arbor press.
22. Install gears (14) and brass washers (16) on spider (15). Put the spider and the gears in position
on the clutch housing as shown.
NOTE: Make sure the notches in the brass washers are up.
23. Install gear (13) as shown on the spider gears. Install the large brass washer on the face of gear
(13). Make sure the hole in the washer is in alignment with the dowel in the housing.
24. Put housing (18) in position on the clutch housing. Tool (F) can be used to make sure the
notches in washers (16) are in alignment with the dowels in housing (18). Install bolts (19) the
washers. Tighten the bolts to a torque of 60 ± 5 lb. ft. (8.3 ± 0.7 mkg).
25. Heat bearing (17) in oil to a temperature of 275° F (135° C). Install bearing (17) on the hub of
housing (18).
10/13
12G MOTOR GRADER 61M07711-12026 (MACHINE) POWERED BY 3306 EN...
2021/2/8
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw...
11. 26. Install the bearing cup and nut (22) in cage (20). Install ring (23) and the two seals on the cage.
27. Put the cage in position over the bearing.
28. Install the nut and the bearing cup in cage (21). Put cage (21) in position over the bearing.
29. Fasten a hoist and a strap to the differential. Put the differential in position on the carrier.
Install the ring and seal between the carrier and cage (20). Make sure the opening in the cage is in
alignment with the ring and seal.
30. Put cap (24) in position over the studs in the carrier. Install the dowel in cage (21). Make sure
the dowel is in alignment with the hole in cap (24).
31. Install nuts (26) that hold the cap to the carrier. Tighten the four nuts to a torque of 75 lb. ft.
(10.4 mkg).
32. Put the differential in position as shown. Put tooling (D) in position on the differential and
against a tooth on the bevel gear. Turn the bevel gear to measure the gear clearance (backlash)
between the pinion and the bevel gear.
33. Make an adjustment to nut (22) under the bevel gear with tool (C), while keeping nut (25)
finger tight against the top bearing, to get a gear clearance (backlash) of .008 ± .002 in. (0.20 ±
0.05 mm).
11/13
12G MOTOR GRADER 61M07711-12026 (MACHINE) POWERED BY 3306 EN...
2021/2/8
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw...
12. 34. Loosen nut (25). Tighten the nut by hand to remove the end play. Tighten nut (25) 1 to 1 1/2
notches and measure the amount of change in dimension (X) with tooling (D). Dimension (X)
must change by .005 ± .002 in. (0.13 ± 0.05 mm).
35. Tighten nuts (26) to a torque of 280 ± 20 lb. ft. (38.8 ± 2.8 mkg). Turn the differential and
measure the gear clearance (backlash) again.
36. Put locks (27) in position on the cap. Install the locks and bolts that hold locks (27). Bend the
locks against the bolts. Install wires (28) through the studs and nuts on each side of the
differential.
37. Install all the O-ring seals on the differential.
end by:
a) install differential
12/13
12G MOTOR GRADER 61M07711-12026 (MACHINE) POWERED BY 3306 EN...
2021/2/8
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw...
13. Copyright 1993 - 2021 Caterpillar Inc.
All Rights Reserved.
Private Network For SIS Licensees.
Mon Feb 8 01:06:03 UTC+0800 2021
13/13
12G MOTOR GRADER 61M07711-12026 (MACHINE) POWERED BY 3306 EN...
2021/2/8
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw...
14. Shutdown SIS
Previous Screen
Product: MOTOR GRADER
Model: 12G MOTOR GRADER 61M
Configuration: 12G MOTOR GRADER 61M07711-12026 (MACHINE) POWERED BY 3306 ENGINE
Disassembly and Assembly
12G, 130G & 140G MOTOR GRADER POWER TRAIN
Media Number -SENR7186-01 Publication Date -01/11/1989 Date Updated -24/02/2006
SENR71860015
Differential (Direct Drive)
SMCS - 3258-15; 3258-16
1/11
12G MOTOR GRADER 61M07711-12026 (MACHINE) POWERED BY 3306 ENGI...
2021/2/8
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw...
15. Disassemble Differential (Direct Drive)
2/11
12G MOTOR GRADER 61M07711-12026 (MACHINE) POWERED BY 3306 ENGI...
2021/2/8
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw...
16. start by:
a) remove differential
1. Remove all the O-ring seals from the differential. Bend the lock away from nut (1) and remove
nut (1) with tool (A).
3/11
12G MOTOR GRADER 61M07711-12026 (MACHINE) POWERED BY 3306 ENGI...
2021/2/8
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw...
17. 2. Remove lock (2) and washer (3) from the shaft.
3. Put the differential in position with the bevel gear up as shown.
4. Remove wire (7) from each side of the differential. Remove nuts (6) that hold the cap to the
carrier.
5. Remove bolt (4) from each side of the differential.
6. Remove lock (5) from each side of the differential.
7. Remove cap (8) from the carrier.
8. Remove dowel (9) from each of the cages on the differential.
9. Fasten a hoist and a strap to the differential.
4/11
12G MOTOR GRADER 61M07711-12026 (MACHINE) POWERED BY 3306 ENGI...
2021/2/8
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw...
18. 10. Remove differential (10). Weight is 160 lb. (73 kg).
11. Remove cages (11) and (12). Remove the nuts and the bearing cups from the cages.
13. Remove bearing cone (13) with tooling (B).
14. Turn the differential on its other end. Put it on blocks as shown. Remove bolts (14) and the
washers that hold the hub and the bevel gear to the other hub.
5/11
12G MOTOR GRADER 61M07711-12026 (MACHINE) POWERED BY 3306 ENGI...
2021/2/8
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw...
19. 15. Install three 5/8"-11 NC forged eyebolts in hub (17) as shown. Fasten a hoist to eyebolts (15).
16. Remove hub (17) from the bevel gear. Remove the bevel gear from the other hub.
17. Remove bearing cone (16) from hub (17) with tooling (B).
18. Remove pinion (18) from the differential carrier with tooling (C).
19. Remove bearing cups (20) and (21) from the differential carrier.
20. Remove seal (19) from the differential carrier.
21. Remove bearing cone (22) from pinion (18) with tooling (D).
6/11
12G MOTOR GRADER 61M07711-12026 (MACHINE) POWERED BY 3306 ENGI...
2021/2/8
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw...
20. Assemble Differential (Direct Drive)
1. Heat bearing (2) in oil to a temperature of 275° F (135° C). Install bearing (2) on pinion (1).
2. Lower the temperature of the two bearing cups for the pinion. Install the bearing cups in
differential carrier (3).
3. Install the seal in the differential carrier. Install the seal with the lip toward the bevel gear. Put a
small amount of oil on the lip of the seal.
4. Put pinion (1) in position on a block as shown. Install tooling (A) on carrier (3) and fasten a
hoist to tooling (A). Lift the carrier and put it in position over pinion (1) so bearing (2) is in its seat
in the bearing cup.
7/11
12G MOTOR GRADER 61M07711-12026 (MACHINE) POWERED BY 3306 ENGI...
2021/2/8
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw...
21. 5. Heat bearing (4) in oil to a temperature of 275° F (135° C).
6. Install bearing (4) on pinion (1). Make sure the bearing is in its seat in the bearing cup. Lift the
carrier and remove the block from under the pinion. Put the carrier on the floor. Remove tooling
(A) from the carrier.
7. Install the washer, the lock and nut (5) on the pinion. Do not tighten the nut.
8. Put two .250 in. (6.35 mm) dowels in the splines of the pinion. Put the dowels in position 180°
apart. Install tooling (B) over the pinion and the dowels.
9. Check the amount of torque needed to move the pinion without any preload on the pinion
bearings. Remove the torque wrench from tooling (B).
10. Install a ratchet on tooling (B).
11. Install tool (C) on nut (5). Tighten nut (5) with tool (C) while holding the pinion with the
ratchet. Tighten the nut enough to get a torque of 6 ± 4 lb. in. (6.9 ± 4.6 cm.kg) more than the
torque needed to turn the pinion when the bearings were not preloaded. Remove tooling (B) and
(C).
8/11
12G MOTOR GRADER 61M07711-12026 (MACHINE) POWERED BY 3306 ENGI...
2021/2/8
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw...
22. 12. Heat bearing (6) in oil to a temperature of 275° F (135° C).
13. Install bearing (6) on hub (7).
14. Heat bearing (9) in oil to a temperature of 275° F (135° C). Install the bearing on hub (10).
15. Put hub (7) in position on blocks with its bearing down. Put bevel gear (12) in position on hub
(7). Install three 5/8"-11 NC forged eyebolts in hub (10). Fasten a hoist to eyebolts (8). Put the hub
in position on the bevel gear. Remove the hoist.
16. Install bolts (11) and the washers that hold the hub and the bevel gear to hub (7). Tighten the
bolts to a torque of 185 ± 10 lb. ft. (25.6 ± 1.4 mkg).
17. Remove the eyebolts from the differential.
18. Install the bearing cups and nuts (13) in cages (14). Put the cages in position on the hubs.
19. Fasten a hoist and a strap to the differential.
20. Lift the differential and put it in position on the carrier. Remove the hoist and the strap.
NOTE: Make sure the holes in the cages are up.
9/11
12G MOTOR GRADER 61M07711-12026 (MACHINE) POWERED BY 3306 ENGI...
2021/2/8
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw...
23. 21. Install dowels (16) in the cages.
22. Put cap (15) in position on the cages and the studs. Make sure the dowels in the cages are in
alignment with the holes in the cap.
23. Install nuts (17) that hold the cap to the carrier. Tighten the nuts to a torque of 75 lb. ft. (10.4
mkg).
24. Put the differential in position as shown. Put tooling (D) in position on the differential and
against a tooth on the bevel gear. Turn bevel gear (12) to measure the gear clearance (backlash)
between the pinion and the bevel gear.
10/11
12G MOTOR GRADER 61M07711-12026 (MACHINE) POWERED BY 3306 EN...
2021/2/8
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw...
24. 25. Make an adjustment to the nut under the bevel gear with tool (C), while keeping nut (18)
finger tight against the top bearing, to get a gear clearance (backlash) of .008 + .004 - .003 in.
(0.20 + 0.10 - 0.08 mm).
26. Loosen nut (18). Tighten the nut by hand to remove the end play. Tighten nut (18) 1 1/2 to 2
notches and measure the amount of change in dimension (X) with tooling (D). Dimension (X)
must change by .005 ± .002 in. (0.13 ± 0.05 mm).
27. Tighten nuts (17) to a torque of 280 ± 20 lb. ft. (38.8 ± 2.8 mkg). Turn the differential and
measure the gear clearance (backlash) again.
28. Put locks (20) in position on the cap. Install the locks and bolts (19) that hold the locks. Bend
the locks against the bolts.
29. Install wires (21) on the studs on each side of the differential.
30. Install all the O-ring seals on the differential.
end by:
a) install differential
Copyright 1993 - 2021 Caterpillar Inc.
All Rights Reserved.
Private Network For SIS Licensees.
Mon Feb 8 01:06:59 UTC+0800 2021
11/11
12G MOTOR GRADER 61M07711-12026 (MACHINE) POWERED BY 3306 EN...
2021/2/8
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw...
25. Shutdown SIS
Previous Screen
Product: MOTOR GRADER
Model: 12G MOTOR GRADER 61M
Configuration: 12G MOTOR GRADER 61M07711-12026 (MACHINE) POWERED BY 3306 ENGINE
Disassembly and Assembly
12G, 130G & 140G MOTOR GRADER POWER TRAIN
Media Number -SENR7186-01 Publication Date -01/11/1989 Date Updated -24/02/2006
SENR71860016
Transmission
SMCS - 3150-11; 3150-12; 3150-15; 3150-16; 3159-16; 3159-15
Remove Transmission
start by:
a) remove fuel tank
b) remove alternator
c) remove fan drive
d) remove transmission oil filter base
e) remove transmission oil and scavenge pump
f) remove parking brake rotochamber and release valve
1. Drain the oil from the transmission. Drain the coolant from the cooling system.
NOTE: The plug that has a location in tube (4) toward the front of the machine can be removed to
drain the coolant from tube (4). Put the plug in position in tube (4) after draining the coolant.
2. Remove hose clamps (1) from each end of tube (4). Remove tube (4).
1/41
12G MOTOR GRADER 61M07711-12026 (MACHINE) POWERED BY 3306 ENGI...
2021/2/8
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw...
26. 3. Put identification on oil lines (3) as to their location on the relief control valve. Disconnect oil
lines (3) from the valve.
4. Loosen the nuts from bolts (2) on each side of the engine. Tighten bolts (2) until they are
against the frame. Tighten the nuts.
5. Remove bolts (6) and retainer (9) that hold couplings (8) to the transmission. Loosen nuts (7)
and slide couplings (8) free of the transmission. Lift control cables (5) out of the links on the
transmission control valves.
6. Fasten a hoist to the lifting eyes on the transmission. Remove bolts (10) that hold the
transmission to the flywheel housing. Remove nuts (11) that hold the transmission to the studs in
the differential housing.
7. Move the transmission away from the engine and off the studs in the differential housing.
8. Lift transmission (12) and remove it from the machine. Weight is 1500 lb. (680 kg).
Install Transmission
2/41
12G MOTOR GRADER 61M07711-12026 (MACHINE) POWERED BY 3306 ENGI...
2021/2/8
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw...
27. 1. Fasten a hoist to the lifting eyes on the transmission. Lower the transmission (1) into position in
the machine.
2. Move the transmission on to the studs in the differential housing and into the flywheel housing.
NOTE: To put the splines on the transmission adapter in alignment with the flywheel, turn the
transmission oil pump shaft. To put the splines in the transmission in alignment with the splines
on the differential input shaft, the following procedure can be used:
a) Drain the oil from the tandem housings.
b) Remove the axles.
c) Turn the differential input shaft with a prybar or a screwdriver while the transmission is being
installed on the studs of the differential housing.
d) Install the axles and fill the tandem housings with oil to their correct levels.
3. Install bolts (2) that hold the transmission to the flywheel housing. Install the nuts that hold the
transmission to the differential housing. Connect oil lines (3) to their correct locations on the relief
control valve. Remove the hoist.
4. Put three control cables (7) in position on the valve links. Put couplings (6) in position in the
transmission housing. Tighten nuts (4) against the couplings. Put retainer (5) in position over the
couplings. Install the bolts that hold the retainer to the transmission housing.
3/41
12G MOTOR GRADER 61M07711-12026 (MACHINE) POWERED BY 3306 ENGI...
2021/2/8
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw...
28. 5. Put tube (8) in position on the machine. Tighten hose clamps (9) at each end of tube (8) over the
tube. Loosen the nuts on bolts (10) on each side of the machine. Move bolts (10) away from the
frame. Tighten the nuts.
6. Fill the transmission with oil to its correct level. Fill the cooling system with coolant to its
correct level.
end by:
a) install parking brake rotochamber and release valve
b) install transmission oil and scavenge pump
c) install transmission oil filter base
d) install fan drive
e) install alternator
f) install fuel tank
Disassemble Transmission
start by:
4/41
12G MOTOR GRADER 61M07711-12026 (MACHINE) POWERED BY 3306 ENGI...
2021/2/8
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw...
29. a) remove transmission
1. Install the transmission on tooling (C). Remove bolts (1) and the lockwashers that hold the
cover to the transmission. Remove cover (2).
2. Remove links (3) from the transmission hydraulic control valves.
3. Remove bolts (8) and plates (7). Move the four sleeves (5) free of the transmission hydraulic
control valves.
NOTE: Do not remove bolts (4) and (6) at this time. Bolts (4) and (6) hold the control valves to
the transmission.
4. Install a 3/8"-16 NC forged eyebolt in the transmission case. Install tooling (B) in the eyebolt.
5/41
12G MOTOR GRADER 61M07711-12026 (MACHINE) POWERED BY 3306 ENGI...
2021/2/8
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw...
30. 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.
GET MORE OTHER MANUALS https://www.aservicemanualpdf.com/
GET MORE OTHER MANUALS https://www.aservicemanualpdf.com/
31. 5. Install tooling (A) on the transmission case and on the control valves. Connect tooling (B) to
tooling (A) as shown. Remove bolts (4) and (6). Remove transmission hydraulic control valves (9)
with tooling (B). Weight is 90 lb. (41 kg). See DISASSEMBLE HYDRAULIC CONTROL
VALVES for disassembly of the control valves.
6. Remove the four sleeves from the transmission. Fasten tooling (D) to the lifting eyes on top of
the transmission. Remove the bolts that hold the transmission to tooling (C). Remove the bolts and
cover (10).
7. Install two 1/2"-13 NC forged eyebolts and two nuts in the transmission on top of the output
flange. Fasten tooling (D) to the two eyebolts.
8. Turn the transmission on its end with tooling (D). Put the transmission in position on tooling
(E). Remove tooling (D) and the eyebolts.
9. Remove O-rings (11) and O-ring (12) from the housing.
10. Remove bolt (13) and bolt (14) that hold the planetary transmission in the transmission case.
11. Install two 5/8"-11 NC forged eyebolts (15) in the housing. Fasten a hoist to the eyebolts.
12. Remove the planetary transmission from the transmission case. Weight is 560 lb. (254 kg).
13. Put the transmission on three blocks.
6/41
12G MOTOR GRADER 61M07711-12026 (MACHINE) POWERED BY 3306 ENGI...
2021/2/8
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw...
32. Make sure the input gear for the planetary transmission is on top of the
blocks. If the input gear is not on top of the blocks, other components
can fall out the bottom of the transmission when a retaining ring is
removed.
14. Remove bolts (16). Remove O-ring seal (18). Lift housing (17) enough to remove springs (19)
and plungers (20). Remove the housing. Weight is 85 lb. (39 kg). Remove the O-ring seal that is
under the flange on housing (17).
15. Remove bolts (22). Bend the locks (23) away from bolts (21). Remove bolts (21) and locks
(23).
16. Remove hub (25). Remove four discs (24) and three plates (26). These discs and plates are for
the parking brake clutch.
7/41
12G MOTOR GRADER 61M07711-12026 (MACHINE) POWERED BY 3306 ENGI...
2021/2/8
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw...
33. 17. Install tooling (F) as shown against plate (29). Put springs (28) in compression with tooling (F)
and a press.
18. Remove retaining ring (27). Slowly release the compression on springs (28). Remove tooling
(F). Remove the plate and the springs.
19. Remove cage (30) from the hub. Remove O-ring seal (31) and the internal ring that is under
the O-ring seal.
20. Remove external ring (32) from the hub.
21. Remove piston (34).
22. Remove ring gear (33).
8/41
12G MOTOR GRADER 61M07711-12026 (MACHINE) POWERED BY 3306 ENGI...
2021/2/8
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw...