- Electric Power Generation
- C2.2 GEN SET (S/N: JK71-UP; JK81-UP)
- Engine
- C3.4B (S/N: CF61-UP; CF91-UP)
- Engine Package
- 3.4B (S/N: CF61-UP; CF91-UP)
Introduction
This Special Instruction provides troubleshooting instructions for certain XQ35 and XQ60 solar charger wiring.
Do not perform any procedure in this Special Instruction until you have read the information and you understand the information.
Important Safety Information
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.
Ensure that the product will not be damaged or the product will not be made unsafe by the operation, lubrication, maintenance, or repair procedures used.
Ground the equipment. Improper grounding will result in electrical current paths that are uncontrolled and unreliable. Uncontrolled electrical circuit paths can result in damage to the equipment. Uncontrolled electrical circuit paths can also cause electrical activity that may degrade the electronics and communications. Ensure that all grounds are secure and free of corrosion.
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Do not operate or work on this machine unless you have read and understand the instructions and warnings in the Operation and Maintenance Manual. Failure to follow the instructions or heed the warnings could result in injury or death. Contact any Caterpillar dealer for replacement manuals. Proper care is your responsibility. |
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Only persons with training in electrical installations must carry connections to the generator. The generator must be wired correctly. A fire or electrocution could result from wiring that is incorrect. The generator is capable of generating high voltages. Ensure that the generator is not on while the connections are being made. Follow these steps in order to prevent accidental starting:
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Do not connect generator to a utility electrical distribution system unless it is isolated from the system. Electrical feedback into the distribution system can occur and could cause personal injury or death. Open and secure main distribution system switch, or if the connection is permanent, install a double throw transfer switch to prevent electrical feedback. Some generators are specifically approved by a utility to run in parallel with the distribution system and isolation may not be required. Always check with your utility as to the applicable circumstances. |
Verify Solar Maintainer Array Wiring
Perform the following procedure to verify solar maintainer array wiring:
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| Illustration 1 | g06262533 |
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(1) Rear Controls Door
(2) Right Side Door | |
- Open rear controls door and right side door.
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Illustration 2 g06255551 - Observe solar maintainer control module lamps to verify that solar maintainer is functioning:
- Sunny day, charging = solid green, blinks off every 5 seconds.
- Night time or improperly wired = OFF, blinks on every 5 seconds.
- If the solar array is not working, swap the positive and negative connections. Check wiring at DT Connector that plugs into Solar Array below roof.
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| Illustration 3 | g06264666 |
Verify Low-Power Mode Relay Wiring
Perform the following procedure to verify low-power mode relay wiring:
- Open rear controls door and left side door.
- Verify the Product Link Generation (PLG) Controller for proper connection. Refer to Illustration 4.
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| Illustration 4 | g06264020 |
| (4) Product Link Generation (PLG) Controller | |
- Check wiring at Low Power Mode (LPM) relay on the shelf. (Between ECM Power Relay and Shore Power Relay). Refer to Illustration 5.
- Pos 1 - M904-A1
- Pos 2 - 205-A40
- Pos 3 - M905-A1
- Pos 5 - 122-A20
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| Illustration 5 | g06264021 |
| (5) Low-Power Mode Relay | |
Verify Wiring to PLG641 Device
Perform the following procedure to verify wiring to PLG641 device:
- Open rear Controls door and right side door.
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Illustration 6 g06256108 - Check wiring at PLG 641 device harness power and CAN/LPM connection. Refer to Illustration 6 for location.
- Check power wiring:
- Pin 1 - A110 (Batt +)
- Pin 2 - 206 (Batt -)
- Check 15 position connector wiring:
- Pos 3 - M904 (low-power mode)
- Pos 4 - M905 (low-power mode)
