Where are the instructions on how to use this?

Before a desoldering pump can suck up solder, it first needs to be primed. This is done by pressing its plunger down until it locks into place. When you now press the release button, the spring-activated plunger rapidly moves backwards, creating suction in the process. This suction is what sucks the solder up through the nozzle. How to use a desoldering pump Melt the solder that you want to remove. You can do this with a soldering iron or with a hot air source, like a hot air rework station. Make sure that you keep the tip of your soldering iron clean and tinned. Prime the desoldering pump by pressing down on the plunger until it locks into place. Place the tip of the desoldering pump as close to the molten solder as possible. Press the plunger release button while keeping the tip of the pump in place. Alternatively, you can pull away the soldering iron first, but you’ll have to be fast with triggering the desolder pump before the solder hardens. Repeat the previous steps until all solder is removed from the solder connections of the component.

Where can I buy replacement tips?

The replacement tip for the 7874B is the Weller 7875B. We have them in stock and listed on Amazon.

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⚡ Master your circuit repairs with precision and protection!

BUILT TO LAST - Robust aluminum body combines lightweight portability with industrial-grade durability.
TRUSTED LEGACY - From Weller, a brand synonymous with professional-grade soldering since 1945.
STAY STATIC FREE - ESD-safe housing protects sensitive electronics from damaging static discharge.
PLUG PLAY POWER - Hand-powered operation means no batteries or cords—ready whenever and wherever you are.
PRECISION AT YOUR FINGERTIPS - Manual pump design ensures pinpoint desoldering accuracy for flawless circuit repairs.

The Weller 7874B Manual ESD-Safe Desoldering Pump features a durable aluminum body and antistatic housing, delivering precise, battery-free desoldering ideal for professional and hobbyist circuit repair. Lightweight and portable, it’s engineered for accuracy and longevity by a trusted industry leader since 1945.

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Manufacturer	Apex Tool Group
Part number	7874B
Item Weight	80 g
Product Dimensions	11.43 x 3.81 x 28.58 cm; 80 g
Item model number	7874B
Size	pack 1
Color	Blue
Style	Pencil
Material	METAL
Item thickness	1 Inches
Power source type	Hand Powered
Wattage	60 watts
Item Package Quantity	1
Number Of Pieces	1
Head Style	Round
Handle Material	Rubber
Measurement System	Metric
Special Features	Portable
Specific uses	Professional
Included components	(1) Desoldering Pump
Batteries Included?	No
Batteries Required?	No

Weller 7874B Manual ESD-Safe Desoldering Pump with Aluminum Body, Blue

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