Wen JN8504 User Manual

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8.5-AMP

BISCUIT JOINER

Instruction Manual

IMPORTANT: Your new tool has been engineered and manufactured to WEN’s highest standards for dependability,

ease of operation, and operator safety. When properly cared for, this product will supply you years of rugged,

trouble-free performance. Pay close attention to the rules for safe operation, warnings, and cautions. If you use

your tool properly and for its intended purpose, you will enjoy years of safe, reliable service.

NEED HELP? CONTACT US!

Have product questions? Need technical support? Please feel free to contact us:

TECHSUPPORT@WENPRODUCTS.COM1-800-232-1195 (M-F 8AM-5PM CST)

For replacement parts and the most up-to-date instruction manuals, visit WENPRODUCTS.COM

MODEL JN8504

Table of Contents

Questions and Answers:

S
Sandra ChurchJul 28, 2025
What to do if my Wen JN8504 Biscuit Joiner won't start?
- A
  alvaradopaulJul 28, 2025
  First, check if the power cord is properly connected to a power supply. Then, verify that the power outlet has power and that the breaker isn't tripped. Also make sure the outlet is rated for the tool's capacity. If these steps don't resolve the issue, it's possible that there is internal damage or excessive wear.
R
Renee PotterAug 3, 2025
Why is my Wen JN8504 Biscuit Joiner overheating?
- P
  paulagrayAug 3, 2025
  Your Wen Biscuit Joiner might be overheating for several reasons. You may be advancing the tool too quickly into the workpiece. The blade could be damaged or dull, so ensure it's sharp and replace it if necessary. Dust might have collected in the motor housing vents; clean the vents using compressed air while wearing safety glasses and a dust mask. Finally, the motor may not be getting enough power due to an improperly rated extension cord; only use recommended extension cords.
M
Matthew GonzalezAug 9, 2025
Why is my Wen JN8504 Biscuit Joiner's performance decreasing over time?
- D
  Debra LopezAug 9, 2025
  The performance of your Wen Biscuit Joiner may decrease over time if the blade has become dull or damaged, so replace the blade if needed. Another possible reason is that the carbon brushes have worn down or are damaged, so replace the carbon brushes if needed.

Wen JN8504 Specifications

General

Power	8.5 Amp
No Load Speed	10, 000 RPM
Dust Port	Yes
Max Cutting Depth	20mm
Cutting Width	4mm
Blade Diameter	4 inches
Blade Size	4 inches
Arbor Size	7/8 inches