How to Unlock a DeWalt DW715 Miter Saw (Stuck Pin Fix)

A DeWalt DW715 unlocks by pulling the spring-loaded pin near the rear pivot point while pressing down slightly on the arm — not the miter lock lever, which only holds your angle setting. A pin that won’t budge is almost always sawdust jammed in the pin channel, not a broken part. This guide covers the correct unlock sequence, what to check when the arm is stuck, and how to change the 12-inch blade safely.

How to Unlock the DW715 Arm (Step by Step)

The DW715 has two separate locks that get confused with each other: the transport/blade-guard locking pin at the rear pivot (what holds the arm down for carrying) and the miter lock lever at the front (what locks your angle setting on the miter scale). Unlocking the saw to use it means releasing the pin, not the lever.

1. Unplug the saw. Always disconnect power before working near the blade or pivot.
2. Find the pin at the rear pivot. It’s a small spring-loaded knob on the left rear side of the saw, right where the arm pivots.
3. Press down slightly on the arm, then pull the pin. The pin is under tension from the arm’s weight — pressing down first is what lets it slide free. Pulling it while the arm is fully extended often makes it feel “stuck” when it isn’t broken.
4. Raise the handle to the upright position until you hear the arm settle into working position.
5. Check the miter lock lever separately if you also need to change the cutting angle — lift it, rotate the table to your angle on the miter scale, then push it back down to lock. Our miter saw adjustment guide covers calibrating the detent plate if the angle drifts after repeated use.

This same pin-and-lever layout is standard across most compound miter saws, not just the DW715 — so the steps above translate directly if you ever switch models.

DW715 Arm Still Won’t Unlock? Troubleshooting a Stuck Pin

If the pin pulls out but the arm still won’t move, or the pin itself won’t slide, the cause is almost always debris — not a bent pin or broken spring.

The Pin Won’t Slide Out At All

Sawdust packed into the pin channel is the most common cause. Blow it out with compressed air or a stiff brush, then try again while pressing down on the arm first. A drop of light machine oil on the pin shaft helps if it still feels gritty.

The Arm Moves But Feels Rough or Won’t Slide Smoothly

Check the sliding rails for sawdust buildup and wipe them down. If the saw still binds, the rails may need a light coat of machine oil — never grease, which attracts more dust.

The Blade Guard Won’t Lift

Confirm the arm is fully unlocked first — the lower guard is mechanically linked to the arm’s travel and can appear stuck simply because the transport pin is still engaged.

📊 The DW715 takes a 12-inch blade with a 1-inch arbor, spinning at roughly 4,000 RPM (15-Amp motor). Never install a blade rated below 4,000 RPM — Source: DeWalt DW715 instruction manual.

Changing the Blade on a DW715

With the arm unlocked and the saw unplugged, lift the lower blade guard, hold the spindle lock, and loosen the blade bolt with the included wrench. Swap the 12-inch blade (1-inch arbor, teeth facing forward) and reverse the steps. For the full bolt-direction and spindle-lock walkthrough, see our dedicated DeWalt miter saw blade-change guide, which covers the reverse-thread bolt detail that trips up most first-timers.

Keeping the DW715’s Locks Working Smoothly

Most “stuck lock” complaints on this saw trace back to sawdust, not mechanical failure. After every few uses:

• Wipe down the pivot area and blow out the pin channel with compressed air
• Put one drop of light machine oil on the transport pin and the sliding rails — never grease
• Check that the miter lock lever still holds firmly at 0°; a lever that slips under load means the detent plate needs adjustment
• Keep the blade guard’s spring clean so it isn’t mistaken for a stuck arm

Frequently Asked Questions

How do you unlock a DeWalt DW715 miter saw?

Press down slightly on the arm and pull the spring-loaded pin at the rear pivot point, then raise the handle to the working position. This is separate from the miter lock lever, which only locks your angle setting.

What size blade does the DW715 use?

A 12-inch blade with a 1-inch arbor, rated for at least 4,000 RPM. Using a blade rated below that speed is a safety hazard, per DeWalt’s own instruction manual.

Why is the locking pin stuck even after I pull it?

Sawdust packed into the pin channel is the most common cause, not a bent pin. Clear it with compressed air or a brush, add a drop of light oil, and press down on the arm before pulling — pulling on a fully-extended arm puts extra tension on the pin.

How do you change the blade on a DeWalt DW715?

Unplug the saw, lift the lower blade guard, hold the spindle lock, and loosen the blade bolt with the included wrench — note the bolt is reverse-threaded on most compound miter saws. Swap the blade with the teeth facing forward, then reverse the steps.

Bottom Line

Releasing the DW715’s arm is a one-motion job — press down, pull the rear pin, raise the handle — and nearly every “stuck” complaint traces back to sawdust in the pin channel rather than a broken part. Clear it, oil it lightly, and the lock should release the same way every time. Shopping around instead? See how the DW715 stacks up in our DeWalt vs. Hercules miter saw comparison.