1. Introduction
The CRAFTSMAN CMMT98287 Handheld Automotive Brake Bleeder is a versatile tool designed for both brake bleeding and automotive vacuum testing. This manual provides detailed instructions for the safe and effective operation and maintenance of your device.
2. What's in the Box
Verify that all components are present before beginning operation:
- Handheld Brake Bleeder (1)
- Collection Container (1)
- Collection Container Lids (2)
- Clear Tubing Sections (4)
- Adapters (14)
Image 1: All components of the CRAFTSMAN CMMT98287 Handheld Brake Bleeder kit, including the bleeder pump, collection container, tubing, and various adapters.
3. Safety Information
Always observe basic safety precautions when using automotive tools. Failure to do so may result in injury or damage to property.
- Wear appropriate personal protective equipment, including safety glasses and gloves.
- Ensure the work area is well-ventilated, especially when dealing with brake fluid.
- Keep children and bystanders away from the work area.
- Do not operate the tool if it is damaged or malfunctioning.
- Refer to your vehicle's service manual for specific brake bleeding procedures and fluid types.
- Dispose of used brake fluid responsibly according to local regulations.
4. Setup
Before using the brake bleeder, ensure all connections are secure.
- Attach one end of a clear tubing section to the vacuum port on the handheld bleeder pump.
- Attach the other end of the same tubing section to one of the collection container lids.
- Securely fasten the collection container lid onto the collection container.
- Select the appropriate adapter for your vehicle's brake bleeder screw or vacuum line.
- Connect another clear tubing section to the selected adapter.
- Connect the free end of this tubing section to the second port on the collection container lid.
5. Operating Instructions
5.1. Brake Bleeding
This procedure removes air from the brake lines, ensuring proper brake function.
- Ensure the vehicle is safely supported and the wheels are removed if necessary to access the bleeder screws.
- Locate the brake bleeder screw on the caliper or wheel cylinder.
- Attach the appropriate adapter and tubing from the collection container to the bleeder screw.
- Loosen the bleeder screw slightly (typically 1/4 to 1/2 turn).
- Pump the handheld bleeder to create a vacuum (usually 10-15 inHg, refer to vehicle manual). Observe the brake fluid flowing into the collection container.
- Continue pumping until no air bubbles are visible in the fluid flowing through the clear tubing.
- While maintaining vacuum, tighten the bleeder screw.
- Release the vacuum on the pump.
- Repeat the process for each wheel, typically starting with the wheel furthest from the master cylinder.
- Regularly check and refill the master cylinder reservoir with new, clean brake fluid to prevent air from entering the system.
- After bleeding all brakes, test the brake pedal for firmness before driving the vehicle.
Image 2: The CRAFTSMAN brake bleeder in use, connected to a vehicle's brake caliper for bleeding.
5.2. Vacuum Testing
The tool can also be used to test various vacuum-operated components in an automotive system.
- Connect the handheld bleeder pump directly to the vacuum line or component being tested using an appropriate adapter.
- Pump the handle to create the desired vacuum level.
- Observe the gauge for any drop in vacuum over time. A steady vacuum indicates a sealed system, while a drop suggests a leak.
- Refer to your vehicle's service manual for specific vacuum specifications and testing procedures for different components.
Image 3: The CRAFTSMAN brake bleeder connected for vacuum testing, with the gauge displaying the vacuum level.
6. Maintenance
Proper maintenance ensures the longevity and reliability of your tool.
- After each use, thoroughly clean the collection container and tubing with appropriate cleaning solutions, especially after contact with brake fluid.
- Inspect all tubing and adapters for cracks, wear, or damage. Replace any damaged components.
- Store the brake bleeder and its accessories in a clean, dry place, away from direct sunlight and extreme temperatures.
- Do not immerse the bleeder pump in liquids.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No vacuum or low vacuum | Loose connections, cracked tubing, faulty pump seals, clogged adapter. | Check all connections for tightness. Inspect tubing and replace if cracked. Check pump seals for damage. Clean or replace adapters. |
| Fluid not flowing during brake bleeding | Bleeder screw not open, clogged bleeder screw, insufficient vacuum, master cylinder reservoir empty. | Ensure bleeder screw is slightly open. Clear any clogs in the bleeder screw. Increase vacuum. Refill master cylinder reservoir. |
| Air bubbles continue to appear | Air leak in connections, air still in the system, master cylinder reservoir too low. | Re-check all connections for leaks. Continue bleeding until no bubbles appear. Ensure master cylinder reservoir is adequately filled. |
8. Specifications
| Brand: | CRAFTSMAN |
| Model: | CMMT98287 |
| Item Weight: | 1.23 pounds |
| Product Dimensions: | 2.64 x 11.24 x 9.17 inches |
| Functionality: | Brake Bleeder, Vacuum Tester |
| Gauge: | Rotating vacuum and pressure gauge in inches of Mercury (Hg) |
9. Warranty and Support
For warranty information, technical support, or to purchase replacement parts, please contact CRAFTSMAN customer service. Refer to the official CRAFTSMAN website or product packaging for the most current contact details.
You can visit the official CRAFTSMAN store online for more information: CRAFTSMAN Store