PN PF7
INSTRUCTIONS
Wear safety goggles to protect your eyes.
Wear Nitrile®, Neoprene® or PVC gloves to protect your hands.
Wear a long-sleeved shirt to protect your arms.
The following instructions must be followed before removing or adding fluid to any vehicle brake system.
  1. Carefully read the BG PF7 instructions before beginning vehicle service.
  2. Before handling any BG product, read its Safety Data Sheet.
  3. Make absolutely certain that you know the proper brake fluid for the vehicle being serviced. Do not attempt to service a vehicle equipped with DOT 5 silicone fluid with this equipment. DOT 5 brake fluid is not compatible with either DOT 3 or DOT 4 brake fluid or the components of the BG PF7.
  4. Perform services only in well-ventilated areas.
  5. Brake fluids WILL strip paint and dissolve certain rubber and plastic components. Clean up spills immediately.
  6. Brake system may be under pressure. Open fittings slowly.
  7. Use only brake fluid from a container that has an intact factory seal. Do not store open or unsealed brake fluid as it will absorb moisture and its use could prevent brakes from stopping the vehicle effectively.
  8. Keep all hoses and tools away from moving engine parts.
  9. Check all brake lines and hoses for cracks and sharp creases that could impede flow.
  10. Store and dispose of used brake fluid in accordance with local, state, and federal regulations.
  11. Always follow vehicle manufacturer’s recommended brake flushing and brake bleeding procedures!
Initial Inspection and Set-up
  1. Remove packing material from the BG PF7 and inspect for damage or missing components.
  2. Unpack adaptors and place into the drawer.
  3. If New Fluid Tank (N) is not installed, connect corresponding hoses and secure it to the console with the included bolts.
Preparing for Service
  1. Turn V1 Tank Pressure Knob to “CLOSE” (–), then press Pressure Release Button (P) to remove all pressure in the system.
  2. Close valve on Pump Hose (P).
  3. Attach air source to air inlet on the back of the BG PF7, the Gauge (G) should read “0.”
    Note: The BG PF7 contains an internal regulator and gauge to control main line pressure. This regulator is preset and should only be adjusted by authorized service personnel during servicing.
  4. Remove fill cap on top of New Fluid Tank (N) and add BG brake fluid.
    IMPORTANT! Do not use DOT 5 silicone brake fluid with the BG PF7! Do not use any products other than brake fluid with the BG PF7!
  5. When the New Fluid Tank (N) is filled to Master Cylinder Reservior (MC) “MAX FILL” marker, replace fill cap on New Fluid Tank (N) securely.
    IMPORTANT! Brake fluid absorbs moisture from the air, avoid using partially filled containers. Reseal partially used containers securely. Do not use brake fluid from new containers with broken or missing seals.
  6. Attach the rubber suction wand to the Return Hose (R).
  7. Place vehicle on a lift to gain access to brake bleeder valve(s) on each wheel cylinder. Break each bleeder valve loose and then close to make sure all are functioning properly. Replace any stuck or malfunctioning bleeder valves.
    CAUTION! DO NOT use the included bleeder adaptors to break loose stuck valves.
  8. Lower the vehicle to ground level and remove the cap from the vehicle brake master cylinder reservoir.
BG Brake Service
  1. Turn Suction Switch (S) to “ON” (I). Insert suction wand into vehicle brake master cylinder reservoir and remove all of the old brake fluid. For compartmental reservoirs, use the mini suction wand to get out as much old fluid as possible.
  2. Turn Suction Switch (S) to “OFF” (O).
  3. Attach appropriate Master Cylinder Reservoir Adaptor to the vehicle master cylinder.IMPORTANT! Make sure the adaptor is attached securely because this connection will be pressurized!
  4. Close valve on Pump Hose (P). Connect Pump Hose (P) to Master Cylinder Reservoir Adaptor. Turn the V1 Tank Pressure Knob to “OPEN” (+) to achieve desired pressure on the New Fluid Tank (N). Use vehicle OEM recommended brake system flushing pressure, if available. If not, set the regulator at approximately 12 PSI.
  5. Open the valve on the Pump Hose (P) to fill the vehicle brake master cylinder reservoir. This process will compress the air in the reservoir leaving a little space between the adaptor and the fluid level in the reservoir. This will allow the adaptor to be removed at the end of the service without spilling fluid. Check closely for leaks around the adaptor seal.Other methods of filling the brake master cylinder reservoir
    Once the old fluid in the reservoir has been removed, turn Suction Switch (S) to “OFF” (O). Attach the metal dispensing wand to Pump Hose (P). Adjust V1 Tank Pressure Knob to approximately 12 PSI or the factory recommended flush pressure. Slowly open the valve on the Pump Hose (P) to fill the reservoir. Install appropriate Master Cylinder Reservoir Adaptor. Remove the metal dispensing wand from Pump Hose (P) and connect Pump Hose (P) to the Master Cylinder Reservoir Adaptor. Open valve on Pump Hose (P) slowly to pressurize the system and check for leaks.

    Alternate instructions for using Direct Contact Adaptor
    (for example: GM Bypass Adaptor, PN PF9005)
    With the vehicle brake master cylinder reservoir empty and valve on Pump Hose (P) closed, connect Pump Hose (P) to Direct Contact Adaptor and hold it over the reservoir. Open the valve on Pump Hose (P) and allow fluid to flow through the adaptor and into the reservoir until all air has been purged from the adaptor. Submerge discharge port(s) of the adaptor into the fluid in the vehicle brake master cylinder reservoir and close the valve on the Pump Hose (P). Seal adaptor against the orifices in the bottom of the master cylinder, taking care to keep the discharge ports submerged.

    NOTE: If this procedure is not followed correctly, air may be injected into the master cylinder plunger assembly and may only be removed by bench bleeding the master cylinder.

  6. Once the vehicle brake master cylinder has been pressurized, raise the vehicle and go to the wheel farthest from the master cylinder, usually the passenger-side rear.NOTE: The vehicle OEM may establish brake flushing procedures on some models and, if different from those listed in these instructions, the factory procedures should always take precedence.
  7. Select appropriate size bleeder adaptor. Place the bleeder adaptor on the brake bleeder. Turn Suction Switch (S) to “ON” (I). Insert end of the suction wand into end of bleeder adaptor and slowly open the bleeder. Watch the New Fluid Tank (N) on the BG PF7. When the fluid level hits the bottom marker for the wheel being serviced, close the bleeder and move to the next farthest wheel from the master cylinder and repeat the procedure.
  8. When all wheels have been serviced, turn the Suction Switch (S) to OFF (O) and back out the V1 Tank Pressure Knob.
  9. Press and hold the pressure release button (P) until the gauge reads 0 Psi, then close the pump hose ball valve. CAUTION! Failure to release pressure from the master cylinder will result in fluid being sprayed when Pump Hose (P) is disconnected from Master Cylinder Reservoir Adaptor.
  10. Remove Master Cylinder Reservoir Adaptor and adjust fluid level as necessary.
  11. Clean and reinstall vehicle brake master cylinder cap securely. IMPORTANT! Always test brakes before moving the vehicle!
PF7 diagram
  1. Gauge (G)
  2. Pressure Release Button (P)
  3. Tank Pressure Knob (V1)
  4. Suction Switch (S)
  5. Used Fluid Tank (U)
  6. Fill Cap
  7. New Fluid Tank (N)
  8. Pump Hose with Valve (P)
  9. Return Hose (R)