- Off-Highway Truck/Tractor
- 785C (S/N: APX1-UP)
- 785D (S/N: DMC1-UP; MSY1-UP)
Introduction
This Special Instruction covers the installation procedure of new 423-6542 Oil Pan Gp with 425-5721 Sight Gauge Gp and ground level fill neck on all 785C and 785D Off Highway Trucks.
Do not perform any procedure in this Special Instruction until you have read the information and you understand the information.
Caterpillar Channel 1 Videos
For supplemental information and interpretation of Visual Service Procedures, refer to the following video. The previous training has been replaced with the video below.
Note: A CWS login is required to access Caterpillar Channel 1. Scan the QR code below with a QR enabled device or copy the link that follows.
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| Illustration 1 | g06306276 |
Safety Section
Improper operation, lubrication, maintenance, or repair of this product can be dangerous and could result in injury or death.
The information, specifications, and illustrations in this publication are based on information that was available at the time that the publication was written. The specifications, torques, pressures, measurements, adjustments, illustrations, and other items can change at any time. These changes can affect the service that is given to the product. Obtain the complete and most current information before you start any job. Cat dealers have the most current information available.
Work safely. Most accidents that involve product operation, maintenance, and repair are caused by failure to observe basic safety rules or precautions. An accident can often be avoided by recognizing potentially hazardous situations before an accident occurs. A person must be alert to potential hazards. This person should also have the necessary training, skills, and tools to perform these functions properly.
Safety precautions and warnings are provided in this instruction and on the product. If these hazard warnings are not heeded, bodily injury or death could occur to you or to other persons. Caterpillar cannot anticipate every possible circumstance that might involve a potential hazard.
Therefore, the warnings in this publication and the warnings that are on the product are not all inclusive. If the tools, the procedure, the work method, or your actions are not recommended by Caterpillar, ensure that the tools and your actions are safe for you and for others.
Ensure that all personnel are safe when using a tool, procedure, work method, or operating technique not recommended by Caterpillar. Ensure that the product will not be damaged or the product made unsafe by the operation, lubrication, maintenance, or the repair procedures that are used.
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Do not operate or work on this product unless you have read and understood the instruction and warnings in the relevant Operation and Maintenance Manuals and relevant service literature. Failure to follow the instructions or heed the warnings could result in injury or death. Proper care is your responsibility. |
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When removing a major component or attachment, ensure that it is properly blocked or secured before removing mounting hardware. An assembly that is disconnected without proper blocking may shift or fall, resulting in serious injury or death of personnel or machine damage. |
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Personal injury can result from improper handling of chemicals. Make sure you use all the necessary protective equipment required to do the job. Make sure that you read and understand all directions and hazards described on the labels and material safety data sheet of any chemical that is used. Observe all safety precautions recommended by the chemical manufacturer for handling, storage, and disposal of chemicals. |
Graphic Color Description
Color-coding of targeted components, or sections of a part, is used to communicate a required action.
The descriptions below illustrate the different colors and what is represented when used in a graphic.
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(Blue) The primary component of focus for a particular step. Target or primary component to be installed or removed. Installation implied unless otherwise noted with a symbol. |
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(CAT® Yellow) Description of parts. |
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(Yellow) Components placed aside for access, but not removed. Highlighted areas of adjustment, inspection, or special attention. |
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(Cyan) Special tools or other equipment required for use in a particular step. |
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(Light Gray) Components used for reference. |
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(Magenta) Any fastener, retainer, or electrical connector used to install or remove the primary component. |
Graphic Symbol Description
This section includes all the symbol graphics used throughout the Visual Service Procedure (VSP), along with a brief description of what the symbol represents.
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Attach - To connect together or to fasten on something. |
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Compress, Load - To press together, to squeeze. To transfer weight or force to an object. The weight or force carried by an object. |
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Connect - To place, join, or fasten in an electrical circuit. |
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Discard, Do Not Reuse - To cast aside as useless or undesirable in approved and responsible manner. |
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Disconnect - To remove or separate in an electrical circuit. |
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Lift-Raise - To raise to a higher position. To move or bring something upward. |
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Install - To set up for use or service |
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Tighten - To make nearer to fully stretched, without slack, to apply tension or torque. |
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Position - To locate to the desired or intended location. |
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Keep, Store - To retain for reinstallation or reuse. |
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Remove - To take off or eliminate component |
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Route - To install a harness, hose, or wire along a specific course or layout along or through a product, to direct along a predefined path. |
Torque Specifications
Reference: Refer to Torque Specifications SENR3130 for the latest standard torque specifications used for Caterpillar® fasteners.
Required Parts
| Required Parts | |||
|---|---|---|---|
| Item | Qty | Part Number | Part Name |
| 1 | 1 | Oil Pan | |
| 2 | 3 | Pipe Plug | |
| 3 | 2 | Plug | |
| 4 | 1 | Oil Pan As | |
| 5 | 1 | Pipe Plug | |
| 6 | 1 | Oil Drain Plug | |
| 7 | 9 | Hard Washer | |
| 8 | 9 | Bolt | |
| 9 | 1 | O-Ring Plug | |
| 10 | 1 | Plug | |
| 11 | 2 | Bolt | |
| 12 | 38 | Hard Washer | |
| 13 | 1 | Plug Adapter | |
| 14 | 1 | Oil Drain Plug | |
| 15 | 1 | Oil Pan Gasket | |
| 16 | 27 | Hard Washer | |
| 17 | 4 | Bolt | |
| 18 | 1 | Hard Washer | |
| 19 | 38 | Bolt | |
| 20 | 20 | Hard Washer | |
| 21 | 17 | Bolt | |
| 22 | 2 | Hard Washer | |
| 23 | 4 | Bolt | |
| 24 | 1 | Elbow | |
| 25 | 1 | O-Ring Seal | |
| 26 | 1 | Tube | |
| 27 | 1 | Elbow | |
| 28 | 1 | Seal | |
| 29 | 6 | Hard Washer | |
| 30 | 6 | Bolt | |
| 31 | 1 | Camshaft Cover | |
| 32 | 4 | Hard Washer | |
| 33 | 4 | Bolt | |
| 34 | 1 | Sight Gauge Gp | |
Removal Procedure
| Required Tooling | |||
|---|---|---|---|
| Item | Qty | Part Number | Part Name |
| A | - | - | Suitable Lifting Devices |
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| Illustration 2 | g06387686 |
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| Illustration 3 | g06387687 |
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| Illustration 4 | g06387688 |
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| Illustration 5 | g06387689 |
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| Illustration 6 | g06387691 |
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| Illustration 7 | g06387692 |
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| Illustration 8 | g06385196 |
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| Illustration 9 | g06385198 |
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| Illustration 10 | g06385199 |
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| Illustration 11 | g06385200 |
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| Illustration 12 | g06385201 |
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| Illustration 13 | g06385204 |
Installation Procedure
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| Illustration 14 | g06385205 |
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(1) (2) (3) (4) (5) (6) (7) (8) | |
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| Illustration 15 | g06385207 |
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(2) (9) (10) (11) (12) (13) (14) | |
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| Illustration 16 | g06385208 |
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(15) (16) (17) (18) (19) | |
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| Illustration 17 | g06385209 |
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(20) (21) (22) (23) (24) (25) (26) (27) | |
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| Illustration 18 | g06385210 |
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| Illustration 19 | g06385212 |
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| Illustration 20 | g06385213 |
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(28) (29) (30) (31) | |
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| Illustration 21 | g06385214 |
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(32) (33) (34) | |
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| Illustration 22 | g06385215 |
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| Illustration 23 | g06385223 |