- Wheel Loader:
- 966H (S/N: A6D1-UP)
- 972H (S/N: A7D1-UP)
Introduction
This Special Instruction contains procedures to install the 425-1892 Cold Weather Starting Ar on the 966H and 972H Wheel Loader.
Note: In order for the machine to start, a minimum cranking speed of 115 rpm must be achieved.
Note: Do not press the accelerator pedal while you attempt to start the machine. If the accelerator pedal is pressed before starting, during starting, or within a few moments after starting, the machine may not start successfully.
Do not perform any procedure in this publication or order any parts until you understand the information that is contained in this publication.
Safety
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Do not attempt to disassemble or assemble this machine until you read and understand the disassembly and assembly instructions. Improper disassembly and assembly procedures could result in injury or death. |
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Accidental engine starting can cause injury or death to personnel working on the equipment. To avoid accidental engine starting, disconnect the battery cable from the negative (−) battery terminal. Completely tape all metal surfaces of the disconnected battery cable end in order to prevent contact with other metal surfaces which could activate the engine electrical system. Place a Do Not Operate tag at the Start/Stop switch location to inform personnel that the equipment is being worked on. |
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Breathing ether vapors or repeated contact of ether with skin can cause personal injury. Personal injury may occur from failure to adhere to the following procedures. Use ether only in well ventilated areas. Do not smoke while changing ether cylinders. Use ether with care to avoid fires. Do not store replacement ether cylinders in living areas or in the operator's compartment. Do not store ether cylinders in direct sunlight or at temperatures above 49 °C (120 °F). Discard cylinders in a safe place. Do not puncture or burn cylinders. Keep ether cylinders out of the reach of unauthorized personnel. |
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Recommended Practices
The battery disconnect switch should be placed in the OFF position when the machine is not being operated. This practice will result in increased life of the battery and improved performance.
The ether bottle should be removed if ether will not be required and the temperature will be above 16 °C (60 °F) for an extended period. When the ether bottle is removed, replace the cap on the ether valve. Store the ether bottle in a location that is cool and dry.
Fluid Recommendations
Ensure that you are using the proper fluids for the environment of the machine. Refer to the following publications:
- Operation and Maintenance Manual, SEBU7887, "950H and 962H Wheel Loaders"
- Operation and Maintenance Manual, SEBU6250, "Caterpillar Machine Fluids Recommendations"
- Operation and Maintenance Manual, SEBU5898, "Cold Weather Recommendations for all Caterpillar Machines"
Required Parts
| Quantity | Part | Description |
|---|---|---|
| 1 | 246-3513 | Jacket Water Heater Element As |
| 1 | 217-6284 | Heater Cord As |
| 4 | 6V-2686 | Clip |
| 1 | 7N-2059 | Clamp As |
| 3 | 8T-4121 | Hard Washer |
| 3 | 8T-4137 | Bolt |
| 4 | 8T-4908 | Bolt |
| 1 | 230-0917 | Fitting As |
| 4 | 8T-4224 | Hard Washer |
| 1 | 256-6881 | Ether Atomizer Gp |
145 cm (57 inch) |
174-9169 | Tube |
| 1 | 239-1134 | Ether Starting Valve Gp |
| 1 | 3J-1907 | O-Ring Seal |
| 1 | 3Y-2888 | Connector |
| 1 | 183-3407 | Plug As |
| 2 | 7X-2621 | Bolt |
| 2 | 8T-4226 | Plated Washer |
Procedure to Install the Ether Starting Aid
- Remove 183-3407 Plug As (1) from the air inlet elbow.
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| Illustration 1 | g03357294 |
- Install 256-6881 Ether Atomizer Gp (5). Secure with one 148-8331 Connector As (2) into the air intake elbow. An arrow is stamped onto the 256-6881 Ether Atomizer Gp (5) in order to orient the atomizer properly. The spray from the atomizer must be directed against the flow of the intake air. Orient the atomizer in the inlet manifold. The arrow on the atomizer should face away from the engine. Refer to Illustrations 2.
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| Illustration 2 | g03371129 |
- Attach 145 cm (57 inch) 174-9169 Tube (11) to 256-6881 Ether Atomizer Gp (5) .
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| Illustration 3 | g03371142 |
Right Side View | |
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| Illustration 4 | g03371158 |
Rear View | |
- Route the 174-9169 Tube (11) as shown in Illustrations 3 and 4.
- Secure the 174-9169 Tube (11) with the following hardware:
- Install 7N-2059 Clamp As (12). Secure with two 8T-4908 Bolts (10) and two 8T-4224 Hard Washers (9) .
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| Illustration 5 | g03371215 |
Rear View | |
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| Illustration 6 | g03371224 |
Top View | |
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| Illustration 7 | g03371187 |
Detail A | |
- Install 239-1134 Ether Starting Valve Gp (4). Secure with two 8T-4908 Bolts (10) and two 8T-4224 Hard Washers (9) .
- Connect the ether connector from the main chassis harness (13) to the ether solenoid.
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| Illustration 8 | g03384665 |
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| Illustration 9 | g03384669 |
- Attach ether bottle.
- Illustration 8 shows the configuration screen that is used in order to set the "Ether Solenoid Configuration" parameter. Change the value the parameter to "Continuous Flow Solenoid".
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| Illustration 10 | g03356771 |