This document provides instructions for removing and installing various components of a Caterpillar 312D excavator engine, including:
- Removing and installing the flywheel housing, which requires lifting devices and bolts.
- Removing and installing the crankshaft rear seal, using a slide hammer, distorter, and installer tool.
- Removing and installing the crankshaft pulley, using a combination puller and socket tools. Heating may be required to install wear sleeves.
- Guidelines are provided for cleaning parts and applying retaining compounds during installation. Torque specifications and required tools are listed for each procedure.
Your VW's camshaft position sensor is crucial for engine performance. Signs of failure include engine misfires, difficulty starting, stalling at low speeds, reduced fuel efficiency, and the check engine light. Prompt inspection and replacement can prevent further damage and keep your VW running smoothly.
What Are The Immediate Steps To Take When The VW Temperature Light Starts Fla...Import Motorworks
Learn how to respond when the red temperature light flashes in your VW with this presentation. From checking coolant levels to seeking professional help, follow these steps promptly to prevent engine damage and ensure safety on the road.
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!
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.
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.
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!
How To Fix The Key Not Detected Issue In Mercedes CarsIntegrity Motorcar
Experiencing a "Key Not Detected" problem in your Mercedes? Don’t take it for granted. Go through this presentation to find out the exact nature of the issue you are dealing with. Have your vehicle checked by a certified professional if necessary.
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.
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.
Welcome to ASP Cranes, your trusted partner for crane solutions in Raipur, Chhattisgarh! With years of experience and a commitment to excellence, we offer a comprehensive range of crane services tailored to meet your lifting and material handling needs.
At ASP Cranes, we understand the importance of reliable and efficient crane operations in various industries, from construction and manufacturing to logistics and infrastructure development. That's why we strive to deliver top-notch solutions that enhance productivity, safety, and cost-effectiveness for our clients.
Our services include:
Crane Rental: Whether you need a crawler crane for heavy lifting or a hydraulic crane for versatile operations, we have a diverse fleet of well-maintained cranes available for rent. Our rental options are flexible and can be customized to suit your project requirements.
Crane Sales: Looking to invest in a crane for your business? We offer a wide selection of new and used cranes from leading manufacturers, ensuring you find the perfect equipment to match your needs and budget.
Crane Maintenance and Repair: To ensure optimal performance and safety, regular maintenance and timely repairs are essential for cranes. Our team of skilled technicians provides comprehensive maintenance and repair services to keep your equipment running smoothly and minimize downtime.
Crane Operator Training: Proper training is crucial for safe and efficient crane operation. We offer specialized training programs conducted by certified instructors to equip operators with the skills and knowledge they need to handle cranes effectively.
Custom Solutions: We understand that every project is unique, which is why we offer custom crane solutions tailored to your specific requirements. Whether you need modifications, attachments, or specialized equipment, we can design and implement solutions that meet your needs.
At ASP Cranes, customer satisfaction is our top priority. We are dedicated to delivering reliable, cost-effective, and innovative crane solutions that exceed expectations. Contact us today to learn more about our services and how we can support your project in Raipur, Chhattisgarh, and beyond. Let ASP Cranes be your trusted partner for all your crane needs!
2. Shutdown SIS
Previous Screen
Product: EXCAVATOR
Model: 312D EXCAVATOR KCD
Configuration: 312D Excavator KCD00001-UP (MACHINE) POWERED BY C4.2 Engine
Disassembly and Assembly
C4.2 Engine for Caterpillar Built Machines
Media Number -KENR8105-04 Publication Date -01/06/2013 Date Updated -12/06/2013
i02744399
Flywheel - Install
SMCS - 1156-012
Installation Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 138-7575 Link Bracket 1
NOTICE
Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened component life.
Always wear protective gloves when handling parts that have been
heated.
1. Perform the following procedure, if the ring gear was removed from the flywheel:
a. Raise the temperature of the ring gear 149 °C (300 °F).
1/3
312D Excavator KCD00001-UP (MACHINE) POWERED BY C4.2 Engine(SEBP494...
2020/5/24
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
3. b. Use a suitable press in order to install the ring gear onto the flywheel.
Note: Prior to the installation of the flywheel, refer to Specifications, "Flywheel" for
information on checking the flywheel assembly for flatness.
Illustration 1 g01374993
2. Install Tooling (A) and a suitable lifting device onto flywheel (3).
3. Install flywheel (3). The weight of flywheel (3) is approximately 50 kg (110 lb).
Illustration 2 g01374968
4. Install bolts (2) in order to secure flywheel (3) onto the crankshaft. Tighten bolts (2) to a
torque of 83 ± 5 N·m (61 ± 4 lb ft).
5. Remove Tooling (A) from flywheel (3).
2/3
312D Excavator KCD00001-UP (MACHINE) POWERED BY C4.2 Engine(SEBP494...
2020/5/24
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
4. Illustration 3 g01374966
6. Install muffler brackets (1).
7. Check the flywheel runout. Refer to Testing and Adjusting, "Flywheel Housing - Inspect"
for more information on flywheel runout.
End By:
a. Install the muffler. Refer to Disassembly and Assembly, "Muffler - Remove and Install".
b. Install the crankshaft position sensor. Refer to Disassembly and Assembly, "Crankshaft
Position Sensor - Remove and Install".
Copyright 1993 - 2020 Caterpillar Inc.
All Rights Reserved.
Private Network For SIS Licensees.
Sun May 24 09:26:23 UTC+0800 2020
3/3
312D Excavator KCD00001-UP (MACHINE) POWERED BY C4.2 Engine(SEBP494...
2020/5/24
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
5. Shutdown SIS
Previous Screen
Product: EXCAVATOR
Model: 312D EXCAVATOR KCD
Configuration: 312D Excavator KCD00001-UP (MACHINE) POWERED BY C4.2 Engine
Disassembly and Assembly
C4.2 Engine for Caterpillar Built Machines
Media Number -KENR8105-04 Publication Date -01/06/2013 Date Updated -12/06/2013
i01135944
Crankshaft Rear Seal - Remove
SMCS - 1161-011
Removal Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 1U-7600 Slide Hammer Puller 1
B
5P-7312 Seal Distorter 1
5P-7338 Distorter Ring 2
Start By:
a. Remove the flywheel. Refer to Disassembly and Assembly, "Flywheel - Remove".
NOTICE
Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened component life.
NOTICE
Care must be taken to ensure that fluids are contained during
performance of inspection, maintenance, testing, adjusting, and repair
1/3
312D Excavator KCD00001-UP (MACHINE) POWERED BY C4.2 Engine(SEBP494...
2020/5/24
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
6. 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.
Illustration 1 g00604840
Note: If the oil seal shows a sign of oil leaks, remove the wear sleeve and the oil seal.
1. Drill three evenly spaced 3 mm (0.12 inch) holes in crankshaft rear seal (1).
2. Use Tool (A) to remove the crankshaft rear seal.
Illustration 2 g00604844
3. Use Tool (B) to remove the wear sleeve (2) (not shown) from the rear of the crankshaft.
Note: When you are removing the wear sleeve, take extreme care not to damage the
crankshaft.
2/3
312D Excavator KCD00001-UP (MACHINE) POWERED BY C4.2 Engine(SEBP494...
2020/5/24
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
7. Shutdown SIS
Previous Screen
Product: EXCAVATOR
Model: 312D EXCAVATOR KCD
Configuration: 312D Excavator KCD00001-UP (MACHINE) POWERED BY C4.2 Engine
Disassembly and Assembly
C4.2 Engine for Caterpillar Built Machines
Media Number -KENR8105-04 Publication Date -01/06/2013 Date Updated -12/06/2013
i01615317
Crankshaft Rear Seal - Install
SMCS - 1161-012
Installation Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A
9U-6169 Installer 1
9U-6171 Locator 1
9U-6172 Bolt 2
5P-8247 Hard Washer 1
6V-3303 Bolt 1
NOTICE
Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened component life.
1. To install a new wear sleeve that is complete with a seal, use 169-5464 Quick Cure Primer
to clean the outer diameter of the crankshaft and the inside diameter of the wear sleeve.
Apply 4C-9507 Retaining Compound to the faces of all the mating parts.
1/3
312D Excavator KCD00001-UP (MACHINE) POWERED BY C4.2 Engine(SEBP494...
2020/5/24
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
8. Illustration 1 g00604874
2. Install a new wear sleeve that is complete with a seal (1) (not shown) with Tool (A), as
follows:
Illustration 2 g00604875
a. Install 9U-6171 Locator (3) onto the crankshaft with 9U-6172 Bolt (4).
b. Put the new wear sleeve that is complete with a seal in 9U-6169 Installer (2).
c. Put 6V-3303 Bolt (6) through 5P-8247 Hard Washer (5) and 9U-6169 Installer (2)
and thread into 9U-6171 Locator (3).
d. Push the wear sleeve that is complete with a seal onto the crankshaft until 9U-6169
Installer (2) bottoms out.
2/3
312D Excavator KCD00001-UP (MACHINE) POWERED BY C4.2 Engine(SEBP494...
2020/5/24
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
9. Illustration 3 g00604874
e. Remove Tool (A) and check crankshaft rear seal (1) (not shown) for correct
installation.
End By:
a. Install the flywheel. Refer to Disassembly and Assembly, "Flywheel - Install".
Copyright 1993 - 2020 Caterpillar Inc.
All Rights Reserved.
Private Network For SIS Licensees.
Sun May 24 09:28:22 UTC+0800 2020
3/3
312D Excavator KCD00001-UP (MACHINE) POWERED BY C4.2 Engine(SEBP494...
2020/5/24
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
10. Shutdown SIS
Previous Screen
Product: EXCAVATOR
Model: 312D EXCAVATOR KCD
Configuration: 312D Excavator KCD00001-UP (MACHINE) POWERED BY C4.2 Engine
Disassembly and Assembly
C4.2 Engine for Caterpillar Built Machines
Media Number -KENR8105-04 Publication Date -01/06/2013 Date Updated -12/06/2013
i02742697
Flywheel Housing - Remove and Install
SMCS - 1157-010
Removal Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 138-7575 Link Bracket 1
B 1P-0510 Driver Group 1
Start By:
a. Remove the electric starting motor. Refer to Disassembly and Assembly, "Electric Starting
Motor- Remove and Install".
b. Remove the flywheel and ring gear. Refer to Disassembly and Assembly, "Flywheel -
Remove".
NOTICE
Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened component life.
1/4
312D Excavator KCD00001-UP (MACHINE) POWERED BY C4.2 Engine(SEBP494...
2020/5/24
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
11. Illustration 1 g01374571
1. Install Tooling (A), and a suitable lifting device onto flywheel housing (3).
2. Remove bolts (2) and the washers that secure flywheel housing (3) to the cylinder block.
3. Remove flywheel housing (3). The weight of flywheel (3) is approximately 29 kg (65 lb).
4. Remove gasket (1) (not shown).
Illustration 2 g01374572
5. Use Tooling (B) in order to remove the oil seal (4) (not shown).
Installation Procedure
Table 2
Required Tools
Tool Part Number Part Description Qty
A 138-7575 Link Bracket 1
B 1P-0510 Driver Group 1
NOTICE
2/4
312D Excavator KCD00001-UP (MACHINE) POWERED BY C4.2 Engine(SEBP494...
2020/5/24
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
12. Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened component life.
Illustration 3 g01374614
1. Use Tooling (B) in order to install the oil seal (4) (not shown).
Illustration 4 g01374571
2. Check the condition of two dowels (not shown). If dowels are damaged, use new parts for
replacement.
3. Clean old gasket (1) (not shown) from the mating surfaces of the cylinder block and the
flywheel housing. Install a new gasket on the cylinder block.
4. Place flywheel housing (3) in position on the cylinder block.
5. Install the washers and bolts (2) in order to secure flywheel housing (3) to the cylinder
block.
6. Remove Tooling (A).
End By:
3/4
312D Excavator KCD00001-UP (MACHINE) POWERED BY C4.2 Engine(SEBP494...
2020/5/24
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
13. a. Install the flywheel. Refer to Disassembly and Assembly, "Flywheel - Install".
b. Install the electric starting motor. Refer to Disassembly and Assembly, "Electric Starting
Motor- Remove and Install".
Copyright 1993 - 2020 Caterpillar Inc.
All Rights Reserved.
Private Network For SIS Licensees.
Sun May 24 09:29:21 UTC+0800 2020
4/4
312D Excavator KCD00001-UP (MACHINE) POWERED BY C4.2 Engine(SEBP494...
2020/5/24
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
14. Shutdown SIS
Previous Screen
Product: EXCAVATOR
Model: 312D EXCAVATOR KCD
Configuration: 312D Excavator KCD00001-UP (MACHINE) POWERED BY C4.2 Engine
Disassembly and Assembly
C4.2 Engine for Caterpillar Built Machines
Media Number -KENR8105-04 Publication Date -01/06/2013 Date Updated -12/06/2013
i06790404
Crankshaft Pulley - Remove and Install
SMCS - 1205-010
Removal Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 1P-2321 Combination Puller 1
B 6V-9120 Socket(1)
1
(1)
Tooling (B) is a 46 mm socket.
NOTICE
Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened component life.
1. Remove the belt. Refer to Operation and Maintenance Manual, "Belt -
Inspect/Adjust/Replace".
1/4
312D Excavator KCD00001-UP (MACHINE) POWERED BY C4.2 Engine(SEBP494...
2020/5/24
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
15. Illustration 1 g00604778
2. Use Tooling (B) in order to remove nut (1) and washer (2) from the threaded end of the
crankshaft.
Illustration 2 g00604784
3. Use Tooling (A) in order to remove crankshaft pulley (3) from the engine.
2/4
312D Excavator KCD00001-UP (MACHINE) POWERED BY C4.2 Engine(SEBP494...
2020/5/24
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
16. Illustration 3 g00604792
4. If it is necessary to remove wear sleeve (4) from crankshaft pulley (3), use a suitable
hammer and a suitable chisel. Hold the suitable chisel at right angles to the surface of the
wear sleeve. Tap the wear sleeve in three places. You can remove the wear sleeve once the
tension is released.
Installation Procedure
Table 2
Required Tools
Tool Part Number Part Description Qty
B 6V-9120 Socket(1)
1
C 1P-0510 Driver Gp 1
(1)
Tooling (B) is a 46 mm socket.
NOTICE
Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened component life.
1. Raise the temperature of the wear sleeve. Use Tooling (C) in order to install the wear sleeve
onto the crankshaft pulley.
3/4
312D Excavator KCD00001-UP (MACHINE) POWERED BY C4.2 Engine(SEBP494...
2020/5/24
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
17. Illustration 4 g01377941
2. Ensure that baffle plate (5) is oriented, as shown.
Illustration 5 g00604778
3. Position crankshaft pulley (3) onto the engine.
4. Install washer (2) and nut (1). Use Tooling (B) in order to tighten nut (1) to a torque of
707.5 ± 57.5 N·m (522 ± 42 lb ft).
5. Install the belt. Refer to Operation and Maintenance Manual, "Belt -
Inspect/Adjust/Replace".
Copyright 1993 - 2020 Caterpillar Inc.
All Rights Reserved.
Private Network For SIS Licensees.
Sun May 24 09:30:20 UTC+0800 2020
4/4
312D Excavator KCD00001-UP (MACHINE) POWERED BY C4.2 Engine(SEBP494...
2020/5/24
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
18. Shutdown SIS
Previous Screen
Product: EXCAVATOR
Model: 312D EXCAVATOR KCD
Configuration: 312D Excavator KCD00001-UP (MACHINE) POWERED BY C4.2 Engine
Disassembly and Assembly
C4.2 Engine for Caterpillar Built Machines
Media Number -KENR8105-04 Publication Date -01/06/2013 Date Updated -12/06/2013
i02742689
Crankshaft Front Seal - Remove
SMCS - 1160-011
Removal Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 1U-7600 Slide Hammer Puller 1
Start By:
a. Remove the crankshaft pulley. Refer to Disassembly and Assembly, "Crankshaft Pulley -
Remove and Install".
NOTICE
Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened component life.
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.
1/2
312D Excavator KCD00001-UP (MACHINE) POWERED BY C4.2 Engine(SEBP494...
2020/5/24
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
19. 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.
Illustration 1 g00529162
Typical Example
1. Drill three evenly spaced 3.0 mm (0.12 inch) holes in crankshaft front seal (1).
2. Use Tooling (A) in order to remove crankshaft front seal (1). Remove the seal evenly by
alternating the position of Tooling (A) from hole to hole.
Note: Do not damage the flange of the crankshaft during the removal process for the
crankshaft front seal.
Copyright 1993 - 2020 Caterpillar Inc.
All Rights Reserved.
Private Network For SIS Licensees.
Sun May 24 09:31:19 UTC+0800 2020
2/2
312D Excavator KCD00001-UP (MACHINE) POWERED BY C4.2 Engine(SEBP494...
2020/5/24
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
20. Shutdown SIS
Previous Screen
Product: EXCAVATOR
Model: 312D EXCAVATOR KCD
Configuration: 312D Excavator KCD00001-UP (MACHINE) POWERED BY C4.2 Engine
Disassembly and Assembly
C4.2 Engine for Caterpillar Built Machines
Media Number -KENR8105-04 Publication Date -01/06/2013 Date Updated -12/06/2013
i02742692
Crankshaft Front Seal - Install
SMCS - 1160-012
Installation Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 9U-6180 Front Seal Installer 1
NOTICE
Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened component life.
1/2
312D Excavator KCD00001-UP (MACHINE) POWERED BY C4.2 Engine(SEBP494...
2020/5/24
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
21. Illustration 1 g00612743
Typical Example
1. Clean the faces of all the mating parts. Apply a thin coat of clean engine oil to a new
crankshaft front seal.
2. Use Tooling (A) in order to install new crankshaft front seal (1) in the front housing.
3. Remove Tooling (A) and check crankshaft front seal (1) for correct installation.
4. Apply clean engine oil to the face of the crankshaft pulley that will be in contact with the
new crankshaft front seal.
End By:
a. Install the crankshaft pulley. Refer to Disassembly and Assembly, "Crankshaft Pulley -
Remove and Install".
Copyright 1993 - 2020 Caterpillar Inc.
All Rights Reserved.
Private Network For SIS Licensees.
Sun May 24 09:32:19 UTC+0800 2020
2/2
312D Excavator KCD00001-UP (MACHINE) POWERED BY C4.2 Engine(SEBP494...
2020/5/24
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
22. Shutdown SIS
Previous Screen
Product: EXCAVATOR
Model: 312D EXCAVATOR KCD
Configuration: 312D Excavator KCD00001-UP (MACHINE) POWERED BY C4.2 Engine
Disassembly and Assembly
C4.2 Engine for Caterpillar Built Machines
Media Number -KENR8105-04 Publication Date -01/06/2013 Date Updated -12/06/2013
i02742863
Gear Group (Front) - Remove - Idler Gear Only
SMCS - 1206-011
Removal Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 9U-6148 Idler Shaft Puller 1
B 1P-0510 Driver Group 1
Start By:
a. Remove the front housing. Refer to Disassembly and Assembly, "Housing (Front) -
Remove".
NOTICE
Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened component life.
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
1/4
312D Excavator KCD00001-UP (MACHINE) POWERED BY C4.2 Engine(SEBP494...
2020/5/24
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
23. 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.
Illustration 1 g01374732
(1) Fuel injection pump drive gear
(2) Idler gear
(3) Camshaft gear
(4) Crankshaft gear
Note: The No. 1 cylinder is at the top center position when these marks are in alignment.
Note: Ensure that the marks on the timing gears are in alignment.
2/4
312D Excavator KCD00001-UP (MACHINE) POWERED BY C4.2 Engine(SEBP494...
2020/5/24
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
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 2 g01374789
1. Remove idler gear bolt (5) and the washer from the idler gear shaft .
2. Remove thrust plate (6) from the idler gear shaft.
Illustration 3 g01374793
3. Remove idler gear (2) from the idler gear shaft.
Illustration 4 g01374804
4. If necessary, use Tooling (B) and a suitable press in order to remove bushing (7) (not
shown) from idler gear (2).
3/4
312D Excavator KCD00001-UP (MACHINE) POWERED BY C4.2 Engine(SEBP494...
2020/5/24
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
26. Illustration 5 g01374810
Illustration 6 g01374811
5. The following items are components of Tooling (A).
◦ 9U-6147 Stud (9)
◦ 6V-8231 Nut (10)
◦ 9U-6146 Sleeve Assembly (11)
◦ 8T-4244 Nut (12)
6. Use Tooling (A) in order to remove idler shaft (8) (not shown) from the cylinder block.
Check idler shaft (8) for wear and damage. Replace idler shaft (8), if necessary.
Note: See the following list for the removal of the other gears in the front gear group.
◦ In order to remove camshaft gear (3), refer to Disassembly and Assembly, "Camshaft
- Remove".
◦ In order to remove fuel injection pump gear (1), refer to Disassembly and Assembly,
"Fuel Injection Pump - Remove".
◦ In order to remove the gear from the engine oil pump, refer to Disassembly and
Assembly, "Engine Oil Pump - Remove".
◦ In order to remove crankshaft gear (4), refer to Disassembly and Assembly,
"Crankshaft Gear - Remove and Install".
Copyright 1993 - 2020 Caterpillar Inc.
All Rights Reserved.
Private Network For SIS Licensees.
Sun May 24 09:33:18 UTC+0800 2020
4/4
312D Excavator KCD00001-UP (MACHINE) POWERED BY C4.2 Engine(SEBP494...
2020/5/24
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
27. Shutdown SIS
Previous Screen
Product: EXCAVATOR
Model: 312D EXCAVATOR KCD
Configuration: 312D Excavator KCD00001-UP (MACHINE) POWERED BY C4.2 Engine
Disassembly and Assembly
C4.2 Engine for Caterpillar Built Machines
Media Number -KENR8105-04 Publication Date -01/06/2013 Date Updated -12/06/2013
i02879402
Gear Group (Front) - Install - Idler Gear Only
SMCS - 1206-012
Installation Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
a 1p-0510 Driver Gp 1
NOTICE
Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened component life.
1/5
312D Excavator KCD00001-UP (MACHINE) POWERED BY C4.2 Engine(SEBP494...
2020/5/24
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...