Brand: BLACK & DECKER
Category: Lawn Mower
Document Type: Manual
Language: EN
Available Languages: EN , ES
Manual for CM1936
Uploaded: April 20, 2026, 7:41 p.m.
Manual Publish Date: 2010-10-01
Warranty Information
This product comes with a two-year limited warranty against defects in material or workmanship.
Starting the Mower:
1. Insert the safety key. 2. Push the button on the switch housing. 3. Pull the bail handle to the handlebar to start the motor. To stop, release the bail handle.
Mowing Tips:
1. Mow across slopes, not up and down. 2. Release the bail handle to turn off when crossing gravel. 3. Set to highest cutting height in rough or tall weeds. 4. Empty grass catcher when full. 5. If abnormal vibration occurs, stop mower and check for cause.
Battery Charging:
1. Remove safety key. 2. Align and insert charger plug into mower receptacle or battery. 3. Plug charger into wall outlet. Red light indicates charging; green light indicates fully charged. Approximately 12 hours for full charge.
Troubleshooting and error codes
| PROBLEM | SOLUTION |
|---|---|
| Mower doesn't run when bail handle is activated. | A. Check safety key installation and switch button. B. Release bail handle, remove key/battery, turn mower over, check blade. C. Check battery cavity for debris and connection. D. Check battery charge; plug in charger and wait for green light. |
| Motor stops while mowing. | A. Release bail handle, remove key/battery, turn mower over, check blade. B. Raise cutting height to highest position. C. Check battery cavity for debris and connection. D. Check battery charge; plug in charger and wait for green light. E. Avoid overloading; slow down or raise cut height. |
| Mower runs but cutting performance is unsatisfactory, or does not cut entire lawn. | A. Check battery charge; plug in charger and wait for green light. B. Release bail handle, remove key/battery, turn mower over and check: blade sharpness, deck/discharge chute for clogging. C. Adjust wheel height if set too low for grass condition. |
| Mower is too hard to push. | A. Raise cutting height to reduce deck drag. Check each wheel for free rotation. |
| Mower is abnormally noisy and vibrates. | A. Release bail handle, remove key/battery, turn mower over, check blade for bends/damage. Replace if damaged. Check deck underside. B. If no damage, release bail handle, remove key/battery, remove blade, rotate 180 degrees and retighten. If still vibrating, contact service center. |
| Battery charger LED's not on. | A. Check plug connection. B. Replace charger. |
| Battery charger LED does not flip to green. | A. Battery needs diagnosis; take to service center. |
| Mower not picking up clippings with bag. | A. Chute clogged; clear obstruction. B. Too much grass cut; raise cutting height. C. Bag full; empty more often. |
| When mulching there are clippings visible. | A. Too much grass cut; raise cutting height. Do not cut more than 1/3 of length. B. Check blade sharpness. |