- Mini Hydraulic Excavator
- 307.5 (S/N: GW71-UP)
- 308.5 (S/N: GZ81-UP)
- 310 (S/N: GWT1-UP)
- 308.5 (S/N: GZ81-UP)
Introduction
This Special Instruction provides the procedure and parts required to install 556-0458 Auxiliary Hydraulic Lines Ar, 517-2909 Front Lines Gp, 518-7892 Pedal Control and Mounting Gp on machines listed above. This supplemental product support literature should be used with the appropriate Service Manual and the appropriate Parts Manual that is available for this standard machine.
Do not perform any procedure in this Special Instruction until you have read the information and you understand the information.
Caterpillar Channel1 Videos
For supplemental information on this procedure, refer to the following video. The previous training has been replaced with the video below.
Note: A CWS login is required to access Caterpillar Channel1. Scan the QR code below with a QR enabled device or copy the link that follows.
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| Illustration 1 | g06306276 |
Torque Specifications
Reference: Refer to Specifications, SENR3130, "Torque Specifications".
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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Failure to follow all safety guidelines prescribed in this document and by governing authorities and regulatory agencies may result in severe injury or death of personnel or machine damage. |
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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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Climbing equipment may be required to access this service point. Refer to the Operation and Maintenance Manual, "Mounting and Dismounting" topic for safety information. |
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Before servicing/performing maintenance on the machine, electrical power must be physically disconnected; battery plugs must be disconnected from the batteries, or the trailing cable must be unplugged, and warning tags and padlocks shall be applied by a certified electrician. Certified electricians shall perform or direct any electrical work, including any energized testing, repair work in controllers, motors, or other approved compartments, and shall insure that all compartments are properly closed and inspected prior to re-energization. All applicable lock out and tag out procedures must be followed. |
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Do not operate the machine if any guards or covers are missing or inadequately secured. Personnel could be seriously injured or machine damage may occur. |
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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Align - To arrange or to place objects along a line. |
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Attach - To connect together or to fasten on something. |
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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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Finger Tighten - To apply tension or torque with one's digits and unaided by a tool or lever. |
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Insert - To put in or between. |
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Install - To set up for use or service |
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Keep, Store - To retain for reinstallation or reuse. |
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Loosen - To make less tight. To set free. To release. |
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Remove - To take off. |
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Repeat - To perform once more. Iterate to do, make, or perform again. |
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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. |
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Tighten - To make nearer, to fully stretch, without slack, or to apply tension or torque. |
Required Parts
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| Illustration 2 | g06414186 |
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| Illustration 3 | g06414422 |
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| Illustration 4 | g06414481 |
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View of area A | |
| Parts List | |||
|---|---|---|---|
| Item | Qty | Part Number | Description |
| 1 | 2 | Connector As | |
| 2 | 3 | Connector As | |
| 3 | 2 | Hose As | |
| 4 | 1 | Hose As | |
| 5 | 1 | Hose As | |
| 6 | 1 | Elbow As | |
| 7 | 1 | Tube As | |
| 1 | Tube As | ||
| 8 | 1 | Tube As | |
| 1 | Tube As | ||
| 9 | 2 | Clamp | |
| 10 | 2 | Hard Washer | |
| 11 | 2 | Bolt | |
| 12 | 1 | Tube As | |
| 1 | Tube As | ||
| 13 | 1 | Tube As | |
| 1 | Tube As | ||
| 14 | 2 | O-Ring Seal | |
| 15 | 2 | Plate | |
| 16 | 2 | Clip | |
| 17 | 2 | Clip | |
| 18 | 4 | Hard Washer | |
| 19 | 4 | Bolt | |
| 20 | 2 | O-Ring Seal | |
| 21 | 2 | Hose As | |
| 2 | Hose As | ||
| 2 | Hose As | ||
| 22 | 4 | Hard Washer | |
| 23 | 4 | Bolt | |
| 24 | 1 | Plate | |
| 25 | 1 | Plate | |
| 26 | 2 | Ball Valve | |
| 27 | 4 | Connector As | |
| 28 | 2 | Cap | |
| 29 | 4 | Bulkhead Nut | |
| 30 | 1 | Plate | |
| 31 | 1 | Plate | |
| (1) | For 307.5 and 308.5 machines. |
| (2) | For 310 machines only. |
| (3) | For 307.5 machines only. |
| (4) | For 308.5 machines only. |
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| Illustration 5 | g06416512 |
| Required Parts for Foot Pedal | |||
|---|---|---|---|
| Item | Qty | Part Number | Description |
| 32 | 1 | Lanyard | |
| 33 | 2 | Bolt | |
| 34 | 1 | Pedal As | |
| 35 | 2 | Bolt | |
| 36 | 2 | Hard Washer | |
| 37 | 1 | Rubber Pedal | |
| 38 | 4 | Bolt | |
| 39 | 4 | Washer | |
| 40 | 1 | Pedal Control Gp | |
| 41 | 1 | Spring Pin | |
| 42 | 1 | Stopper | |
| 43 | 1 | Support As | |
Machine Preparation
Reference: Operation and Maintenance Manual, M0090571, "Prepare the Machine for Maintenance" for machine preparation.
Installation Procedure
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| Illustration 6 | g06414151 |
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| Illustration 7 | g06414616 |
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(1) (2) | |
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| Illustration 8 | g06420535 |
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(D1) 30 Degrees
(3) | |
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| Illustration 9 | g06414966 |
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(2) (4) | |
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| Illustration 10 | g06414993 |
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(D2) 40 Degrees
(6) | |
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| Illustration 11 | g06415020 |
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(D3) 30 Degrees
(5) | |
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| Illustration 12 | g06415070 |
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(7) (8) (9) (10) (11) | |
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| Illustration 13 | g06415176 |
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(12) (13) (14) (15) (16) (17) (18) (19) | |
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| Illustration 14 | g06415212 |
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(26) (27) | |
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| Illustration 15 | g06415215 |
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(24) (25) (29) | |
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| Illustration 16 | g06415217 |
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(28) | |
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| Illustration 17 | g06415847 |
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(20) (21) | |
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| Illustration 18 | g06415905 |
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| Illustration 19 | g06417146 |
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| Illustration 20 | g06417040 |
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(38) (39) (40) | |
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| Illustration 21 | g06417064 |
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(38) (39) (43) | |
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| Illustration 22 | g06417087 |
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(34) (35) (36) (37) | |
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| Illustration 23 | g06417090 |
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(32) (33) (41) (42) | |
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| Illustration 24 | g06417143 |
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(33) | |