Mityvac MV7110 Fluid Extractor Dispenser Instruction Manual

1. Introduction

The Mityvac MV7110 is a versatile pneumatic fluid evacuator and dispenser designed for handling a wide range of automotive fluids. It can be used for evacuating, topping-off, refilling reservoirs, or pressure bleeding hydraulic brake and clutch systems in various vehicles, including light, medium, and heavy-duty agricultural, commercial, and industrial equipment. This manual provides essential information for the safe and effective operation of your MV7110 unit.

2. Safety Information

Always prioritize safety when operating the Mityvac MV7110. Failure to follow safety precautions can result in injury or damage to equipment.

• Wear appropriate personal protective equipment (PPE), including safety glasses and chemical-resistant gloves, when handling automotive fluids.
• Ensure the work area is well-ventilated to prevent inhalation of fumes.
• Do not use the MV7110 with solvents, liquid fuels, or Diesel Exhaust Fluid (DEF), as this can damage the unit and create hazardous conditions.
• Maintain proper pressure levels. Consult your vehicle's service manual for recommended pressure. If unsure, 10 PSI is a safe starting point. The unit features pressure control systems with a gauge to safely maintain peak output pressure below 30 PSI.
• Properly dispose of all used fluids according to local environmental regulations.
• Securely lift and support vehicles before working underneath them.

3. What's in the Box

The Mityvac MV7110 kit includes the following components:

• 2.5 gallon (10-liter) fluid reservoir
• Reservoir lid with integrated venturi vacuum and pressure dispensing functions
• MVA575 Flex hose with control valve
• MVA578 61.5 inch / 0.226 OD (1.56 m) evacuation wand
• MVA579 97.5 inch / 0.261 OD (2.44 m) evacuation wand
• 12 inch (0.3 m) evacuation wand
• Hanging hook
• User manual (English/French/Spanish/German)

Figure 1: Mityvac MV7110 Fluid Extractor Dispenser with included hoses and hanging hook.

4. Setup

1. Prepare the Unit: Ensure the fluid reservoir is clean and empty before use.
2. Connect Air Supply: Attach your compressed shop air supply (up to 120 PSI) to the quick-connect fitting on the reservoir lid.
3. Select Adapter: Choose the appropriate adapter for your vehicle's master cylinder or fluid reservoir.
4. Install Adapter: Remove the existing cap from the master cylinder or reservoir and securely install the selected adapter. The adapter features a swivel head fitting for optimal hose connection.
   

   Figure 2: Close-up of the adapter being installed onto a vehicle's master cylinder.

5. Connect Hose: Attach the MVA575 flex hose to the adapter.
6. Test for Leaks: With the flow control valve in the open position, pump the unit to the recommended pressure (e.g., 10 PSI). Check for any leaks around the master cylinder, hoses, and connections. The gauge should hold pressure. If no leaks are detected, release the pressure by tilting the valve.
7. Add Fluid (for dispensing/bleeding): Pour the correct type and amount of new fluid into the reservoir. Consult your vehicle's service manual for the recommended fluid type and quantity.
8. Hang Unit: Use the included hanging hook to suspend the unit in a stable, level position, especially when bleeding brakes.

5. Operating Instructions

5.1. Fluid Extraction

1. Connect Air Supply: Ensure compressed air is connected.
2. Select Vacuum Mode: Manipulate the slide valve and throttle on the reservoir lid to generate vacuum.
3. Insert Wand: Insert the appropriate evacuation wand into the fluid to be extracted (e.g., engine oil dipstick tube, power steering reservoir).
4. Extract Fluid: The vacuum will draw the fluid into the MV7110's reservoir. The unit has overflow protection for safe operation.

Figure 3: Mityvac MV7110 in use for fluid extraction from a vehicle's engine bay.

5.2. Fluid Dispensing / Pressure Bleeding

1. Add Fluid: Ensure the MV7110 reservoir contains the correct new fluid.
2. Select Pressure Mode: Manipulate the slide valve and throttle on the reservoir lid to generate positive pressure.
3. Set Pressure: Pump the unit to the recommended pressure (e.g., 10 PSI for brake bleeding, or as specified by the vehicle manufacturer).
4. Connect to Fill Point: For dispensing, connect the hose with the appropriate wand to the fill point of the reservoir (e.g., transmission fill plug, power steering reservoir). For brake bleeding, connect the hose to the master cylinder adapter.
5. Dispense Fluid: Open the flow control valve to dispense fluid.
6. Brake Bleeding Procedure:
   • Consult your service manual for the proper bleeding sequence (e.g., farthest wheel from master cylinder first).
   • Attach a bleed bottle or suitable container to the bleeder screw of the caliper/wheel cylinder.
   • Open the bleeder screw. Fluid will flow out under pressure from the MV7110.
   • Monitor the fluid for air bubbles. Close the bleeder screw once clear, bubble-free fluid is observed.
   • Repeat for all wheels in the specified sequence.
   • Continuously monitor the fluid level in the MV7110 reservoir to ensure it does not run dry during bleeding.
7. Finish: Once complete, release pressure from the MV7110, disconnect hoses and adapters, and reinstall original caps.

Figure 4: Mityvac MV7110 connected to a vehicle's master cylinder for fluid dispensing or pressure bleeding.

6. Maintenance

• After each use, thoroughly clean the reservoir and hoses, especially when switching between different types of fluids, to prevent cross-contamination.
• Store the unit in a clean, dry place away from direct sunlight and extreme temperatures.
• Inspect hoses and fittings regularly for signs of wear, cracks, or damage. Replace any damaged components immediately.

7. Troubleshooting

If you encounter issues with your Mityvac MV7110, consider the following:

• Loss of Pressure/Vacuum: Check all connections for leaks. Ensure the reservoir lid is securely tightened. Inspect hoses and fittings for damage. Verify your compressed air supply is adequate.
• Slow Fluid Transfer: Ensure the correct wand size is used and is fully submerged in the fluid. Check for blockages in the hoses or wands. Verify adequate pressure/vacuum is being generated.
• Fluid Contamination: Always clean the unit thoroughly when switching fluid types. Use dedicated wands for different fluids if possible.

8. Specifications

9. Warranty and Support

The Mityvac MV7110 Fluid Extractor Dispenser is backed by a 1-year warranty on material and workmanship. For technical support or warranty claims, please refer to the contact information provided in the user manual included with your product or visit the official Mityvac website.