USER MANUAL Cordless Electric Lawn Mower

1. ON-OFF switch box 2. ON-OFF button 3. Safety key 4. Handle 5. Bail handle 6. Handle locks 7. Handle brackets 8. Handle storage detent holes 9. Battery port cover | 10. Cut height adjust lever 11. Rear door cover 12. Grass collection bag 13. Grass collection bag handle 14. Upper carrying handle 15. Lower carrying handle 16. Side flap 17. Side discharge attachment |
The mower is shipped in storage mode. You will need to adjust the handle to operating position before continuing.

1. Lift the rear door cover 11 and place the grass collection bag 12 onto the mower so the bag hooks 35 rest on the lugs 18 as shown in Fig. C. Then lower the rear door cover.

NOTE: The rear door cover is shaped in such a way that the opening (at the bottom) cannot be completely closed off.
To Install Battery Pack

To Remove Battery Pack
The height of cut is adjusted by the cut height adjust lever.
NOTE: If you are not sure which height to cut, begin mowing with the cut height adjustment lever 10 positioned towards the rear of the appliance and adjust the height down as needed, as shown in Fig. E.
To Set the Height of Cut

Safety Key (Fig. F)
DANGER: Sharp moving blade. In order to prevent accidental start-up or unauthorized use of your cordless mower, a removable safety key 3 has been incorporated into the design of your mower. The mower will be completely disabled when the safety key has been removed from the mower.
NOTE: The safety key has a tether rope to allow for storage on a nail, out of the reach of children. Do not tether safety key to mower.
DANGER: Rotating blades can cause serious injury. To prevent serious injury, remove safety key and battery pack when unattended, or when charging, cleaning, servicing, transporting, lifting, or storing mower.

NOTE: Once the bail handle has returned to the original position it will activate the “Automatic Braking Mechanism”. The motor is mechanically braked and the mower blade will stop rotating in three seconds or less.

Mower Overload
To prevent damage due to overload conditions, do not try to remove too much grass at one time. Slow down your cutting pace, or raise the cut height.
The handle of the mower can be easily folded down for quick and convenient storage.

The mower can be carried using the convenient carry handle 14 15 . DO NOT attempt to lift the mower by grasping the main handle 4 .

1. Cut a piece of 2" x 4' wood 23 (about 2 feet long) (610 mm) to keep blade from turning when removing the flange nut 24 .
2. Position wood and unscrew flange nut 24 counterclockwise with a 18 mm wrench 25 as shown in Fig. J.
3. Remove square metal blade spacer 26 , square plastic blade insulator 27 and blade 28 as shown in Fig. K. The blade fan 29 should not be removed. Examine all pieces for damage and replace if necessary.
4. Install sharpened or new blade 28 on shoulder 30 of the blade fan as shown in Fig. K.
NOTE: When replacing sharpened or new blade on shoulder of blade fan, make sure the “GRASS SIDE” on the blade will be facing the ground when the mower is returned to its normal upright position.
5. Install the plastic blade insulator 27 on the blade such that the raised lips on one side engage the edges of the blade.
6. Install the blade spacer 26 so that it sits inside the raised lips on the other side of the blade insulator. Be sure to align the flats in the hole of the blade spacer with the flats of the shaft, rotating the blade and blade insulator together as necessary.
7. Position piece of wood to keep blade from turning as shown in Fig. L. Install flange nut 24 with the flange against the blade spacer 26 and securely tighten the blade 28 with a wrench 25 .


Sharpening the blade twice during a mowing season is usually sufficient under normal circumstances. Sand causes the blade to dull quickly. If your lawn has sandy soil, more frequent sharpening may be required. REPLACE BENT OR DAMAGED BLADE IMMEDIATELY.
When Sharpening the Blade
• Make sure blade remains balanced.
• Sharpen blade at the original cutting angle.
• Sharpen cutting edges on both ends of blade, removing equal amounts of material from both ends.
To Sharpen Blade in a Vise (Fig. M)

Check balance of the blade 28 by placing center hole in the blade over a nail or round screwdriver 33 , clamped horizontally in a vise 31 . If either end of the blade rotates downward, file along the sharp edge of that dropping end. Blade is properly balanced when neither end drops.

No lubrication is necessary. Do not oil the wheels. They have plastic bearing surfaces which require no lubrication.
Release bail handle 5 to turn mower off, let the blade come to a stop and then remove battery and safety key. Clean out any clippings which may have accumulated on the underside of the deck. After several uses, check all exposed fasteners for tightness.
Corrosion
Fertilizers and other garden chemicals contain agents which greatly accelerate the corrosion of metals. If you mow in areas where fertilizers or chemicals have been used, the mower should be cleaned immediately afterward as follows: Release bail handle 5 to turn mower off and remove battery and safety key. Wipe all exposed parts with a damp cloth.
| PROBLEM | SOLUTION |
| Mower doesn’t run when bail handle is activated | Check to make sure safety key has been installed and is fully seated and that button on switch housing is being completely depressed before pulling bailhandle. Release bail handle to turn mower off. Remove safety key and battery pack, turn mower over and check that blade is free to turn. Check that the battery cavity is free of debris and is connectedproperly. Has battery been fully charged? Press state of chargebutton. |
| Motor stops while mowing | Release bail handle to turn mower off. Remove safety key and battery pack. Turn mower over and check that blade is free to turn. Raise cutting height of wheels to highest position and start mower Check that the battery cavity is free of debris and is connectedproperly. Has battery been fully charged? Press state of chargebutton. Avoid overloading the mower. Slow down the cutting pace, or raise the cutheight. |
| Mower runs but cutting performance is unsatisfactory, or does not cut entire lawn | Has battery been fully charged? Press state of chargebutton. Release bail handle to turn mower off. Remove safety key and battery pack. Turn mower over and check: • Blade for sharpness - Keep blade sharp. • Deck and discharge chute for clogging Wheel height adjustment may be set too low for grass condition. Raise cuttingheight. |
| Mower is too hard topush | Release bail handle to turn mower off. Remove safety key and battery pack. Raise cutting height to reduce deck drag on grass. Check each wheel for free rotation. |
| Mower is abnormally noisy andvibrates | Release bail handle to turn mower off. Remove safety key and battery pack. Turn mower on side and check blade to ensure it has not been bent or damaged. If blade is damaged, replace with a CRAFTSMAN replacement blade. If the underside of the deck is damaged, return mower to a CRAFTSMAN Authorized service center. If there is no visible damage to the blade and the mower still vibrates: Release bail handle to turn mower off. Remove safety key and battery pack. Disassemble entire blade assembly as described in the Removing and Installing Blade section. Remove any debris and clean each piece. Replace each piece as described in the Removing and Installing Blade section. If mower still vibrates, return the mower to an authorized CRAFTSMAN authorized service center. |
| Mower not picking up clippings withbag | Chute clogged. Release bail handle to turn mower off. Remove safety key and battery pack. Clear chute of grass clippings. Raise cutting height of wheels to shorten length of the cut. Bag full. Empty bag more often. |
Reference file: Craftsman CMCMW260P1 Max 21-in Push Cordless Electric Lawn Mower 5 Ah
Additionally, the document applies to other Craftsman models: CMCMW260