Owner’s manual
How deep will an edger go?
On the Craftsman 316772370 lawn edger, the cutting depth is adjustable at the front wheel; for best results we recommend edging in shallow passes (no more than 1/2 inch per pass) and then increasing depth as needed. For the exact adjustment procedure, follow the owner's manual.
Recommended cutting depth (what works best)
Most lawns edge cleanly when you:
- Start with a shallow cut to establish the groove
- Increase depth gradually on the next pass
- Keep a slow, even walking pace so the blade can cut instead of bouncing
- Re-check depth after hitting hard soil or roots
- Stop and clear debris (rocks, wire, string) before continuing
How to adjust depth on model 316772370
We set depth using the depth adjustment lever next to the front wheel:
- Raise the blade (shallower cut): move the lever toward the front of the wheel bracket
- Lower the blade (deeper cut): move the lever toward the rear of the wheel bracket
- Keep a firm grip; the spinning blade can create forward thrust as it contacts the ground
What limits maximum depth?
A few things determine how deep your edger will actually cut:
| Factor | What you’ll notice | What to do |
|---|---|---|
| Soil hardness and moisture | Hard, dry soil resists cutting | Make multiple shallow passes; edge after light watering if appropriate |
| Blade wear | Reduced cutting depth over time | Replace the blade when it reaches the wear limit holes; use blade guard 731P05064 for protection |
| Belt tension | Blade slows or stops under load | Adjust belt tension using the thumb wheel on the belt housing |
| Operator technique | Chatter, hopping, uneven trench | Walk slowly; do not force the edger |
Why it matters
Cutting too deep in one pass can overload the drive system, reduce control, and leave a ragged edge. Shallow passes protect the blade, belt, and pulley system while giving you a straighter, cleaner trench.
Last updated: February 2026
How often should you change your edger blade?
On the Craftsman 316772370 lawn edger, replace the blade when it reaches the blade wear limit holes, becomes chipped or bent, or no longer cuts a clean edge. Many homeowners replace about once per season; rocky soil and frequent edging require replacement sooner. See the 316772370 owner's manual.
The model-specific replacement point (what to look for)
The 316772370 manual calls out a clear wear indicator on the blade.
- Replace the blade when it has worn to the blade wear limit holes
- Replace immediately if the blade is cracked, bent, or badly nicked
- Replace if edging depth keeps getting shallow even after adjusting depth
- Replace if vibration increases after you confirm the blade is installed centered and flat
Typical replacement timing by use
Use your results and the wear indicator above as the final decision point.
| Usage pattern | Typical blade life | What to do |
|---|---|---|
| Light, soft soil (weekly touch-ups) | About 1 season | Inspect monthly; replace at wear limit holes |
| Average home use (spring through fall) | 1 to 2 seasons | Inspect every 5 to 10 uses |
| Heavy use or rocky/roots/curbs | Weeks to a few months | Inspect every use; keep a spare blade |
Quick checks that improve cutting before you replace parts
A worn blade is common, but these items also affect performance.
- Set cutting depth correctly; make multiple shallow passes (no more than 1/2 inch per pass)
- Walk at a slow, even pace; do not force the edger
- If the blade fails to turn when the bail is pulled, adjust belt tension using the thumb wheel on the belt housing
- Clear packed soil and grass from the blade guard area
Why it matters
A blade that is past its wear limit cuts shallow and can increase vibration. Replacing it at the wear indicator keeps edging clean and helps protect the spindle, belt drive, and guard.
Last updated: February 2026
What size blade is a Craftsman 316772370 edger?
The Craftsman lawn edger model 316772370 uses a 9-inch edger blade. For the exact blade specifications and the correct hardware order (washer, nut, guard), match your parts diagram and blade listing in the 316772370 owner's manual.
How to confirm you have the right blade
- Verify the model number on the edger data label is 316772370.
- Compare your blade shape (dual-tip) and center mounting hole to the diagram.
- Check that the blade guard is installed and not bent into the blade path.
- Inspect the spindle area for missing washers or a loose nut.
- Replace a blade that is rounded, chipped, or noticeably smaller from wear.
Blade-related parts you may need
If you are replacing the blade, we recommend checking these common wear items at the same time:
| Part | What it does | When to replace |
|---|---|---|
| Lawn edger blade 753-05562 | Cuts the edge trench | Worn, bent, cracked, or dull |
| Blade guard 731P05064 | Shields the rotating blade | Cracked, missing, or rubbing |
Why it matters
Using the correct 9-inch blade size helps the edger track straight, maintain consistent cutting depth, and reduce vibration that can loosen fasteners or stress the spindle and belt drive.
Last updated: February 2026
