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Desert Online General Trading LLC

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FOUR UNCLES

Q: When attached to air hose the unit is continuously "sucking air" through the system without pressing the thumb throttle. Is unit defective?

It could be, EB. The valve, when depressed, admits air from the hose off of a compressor through an eductor to draw the process, air fluids or other, by the Venturi effect. All of the air used for this will come through the vent diffuser opposite the hose connection. When the valve is released, the air flow from the compressor supply should be shut off killing the Venturi effect and eliminating the air coming out of the vent diffuser. Keep in mind that there is a trigger locking wire that can hold the trigger in the 'on position' so make sure that this is flipped towards the hose so that the trigger can release to its 'off' position. When your's is 'sucking air' without pressing the thumb throttle, is air coming out of the vent diffuser opposite the hose hose connection on the valve assembly? If no air is coming out from the vent diffuser with the trigger released, then you shouldn't be 'sucking air' and the unit would be in working order.

Q: How do i contact the company? there’s no website, phone, address or anything. how do i get replacement parts?

I need a replacement tube but I also haven't found a contact number, uggg

Q: Should i hear an air hiss when i pump? i do and i lose vacuum pretty quickly and have to pump repeatedly.

I think you lose vacuum when you hear the air his. It’s likely it’s coming from the adapter where you can connect an air pump to, but you don’t have to connect an air pump to it because it has a manual pump. So what I did was turn that stopcock perpendicular to shut that valve and then pump manually. If you meet some resistance stop pumping let the pump do the work, then resume pumping when the vacuum weakens. Too bad the package didn’t come with instructions. However this pump was really efficient and quick to use, not a drop of oil spilled.

Product ID: 296161409

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🔇Integrated silencer for quiet operation

⏱️2 cfm airflow for faster bleeding

🛠️2L large capacity reservoir

Frequently Bought Together

FOUR UNCLES 2L Brake Bleeder Vacuum Pump Kit - Pneumatic Brake Fluid Extractor with 1L Refilling Bottle for Automotive Bleeding, One-Person Operation

Prestone AS401 DOT 3 Synthetic Brake Fluid - 32 oz.

FOUR UNCLES 200cc Fluid Extractor & Fill Pump for Automotive Use - Oil Syringe with a 23" Hose & Two 12" Extension Tubes for Easy Oil Change

Description

🚗 Bleed brakes like a pro—quiet, quick, and solo-ready!

ONE PERSON MASTERY - Effortlessly bleed and flush brakes solo with a 2L vacuum reservoir and 1L refill bottle.
COMPACT LIGHTWEIGHT - Under 4 lbs and midget-sized for easy handling and portability, perfect for on-the-go pros.
PRECISION FLOW CONTROL - Variable thumb throttle maintains optimal 2 cfm airflow for efficient, continuous fluid extraction.
WHISPER QUIET PERFORMANCE - Built-in silencer ensures a cleaner, quieter brake bleeding experience—no more messy noise.
UNIVERSAL FIT FLEXIBILITY - Two 60-inch silicone hoses with universal adapters fit most standard and ABS brake systems.

The FOUR UNCLES 2L Vacuum Brake Bleeder Kit is a professional-grade, one-person hydraulic brake and clutch bleeding system featuring a large 2L fluid reservoir, 1L master cylinder refill bottle, and dual 60-inch silicone hoses. It offers precise airflow control at 2 cfm, an integrated silencer for quiet operation, and a lightweight, compact design for easy portability and efficient brake maintenance on most vehicles.

Specifications

Manufacturer	FOUR UNCLES
Brand	FOUR UNCLES
Model	Brake bleeder
Package Dimensions	29.69 x 26.29 x 18.8 cm; 1 kg
Item model number	FU-6502
Manufacturer Part Number	AIR-001
Item Weight	1 Kilograms

Have a Question? See What Others Asked

When attached to air hose the unit is continuously "sucking air" through the system without pressing the thumb throttle. Is unit defective?

How do i contact the company? there’s no website, phone, address or anything. how do i get replacement parts?

Should i hear an air hiss when i pump? i do and i lose vacuum pretty quickly and have to pump repeatedly.

I hear a hissing sound that seems to be air leaking back in. I closed the pneumatic valve but it still persists, Is there a fix?

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