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2. 

While wearing leather padded gloves, wedge a block 
of wood between the blade and the mower deck in 
order to prevent the blade from turning when the nut 
is being removed.

3. 

Using a 15-mm wrench or socket, loosen the blade 
nut (1) “COUNTERCLOCKWISE” to loosen it and 
“CLOCKWISE” to tighten it.

4. 

Remove the blade nut (1), the square washer (2), and 
the blade (3).

5.  

To re-install the blade, position the blade with the 
cutting edges toward the ground and align the blade 
on the alignment tabs (one round and one semi-round). 

NOTE: 

The blade can only be placed one way for a 

proper and correct fit. Assemble the blade, the square 
washer and the blade nut as shown in the following. 
Using a 15-mm wrench or socket, turn the blade nut 
“CLOCKWISE” to secure the blade.

NOTE:

 Be sure to replace the parts in the exact order in which 

they were removed. When installing the cutting blade, verify 
that it is installed with the curved ends pointing toward the 
mower deck.

Cleaning the Mower 

m

 WARNING:

 

To reduce the risk of electric shock, do not 

expose the mower to water.
The underside of mower deck should be cleaned after each 
use as grass clippings, leaves, dirt and other debris will 
accumulate causing rust and corrosion.
Remove any buildup of grass and leaves on or around the 
motor cover (do not use water). Wipe the mower clean with a
dry cloth occasionally.

• If debris build up on the underside of the unit while using, 

stop the motor and disconnect it from the power supply. 
Tilt the mower forward, or on its side, and scrape it clean 
with an appropriate tool.

Storage

The following steps should be taken to prepare the lawn 
mower for storage.

• Make certain the power cord is disconnected.
• Clean mower as instructed in previous section.
• Inspect and replace or sharpen blade. Refer to the 

Maintenance section.

• Store mower in a dry, clean area. Do not store next to 

corrosive materials, such as fertilizer or rock salt.

• Store mower indoors, in a cool, dry place, out of reach 

of children. Do not cover lawn mower with a solid plastic 
sheet. Plastic coverings trap moisture around the mower 
causing corrosion.

• The handle may be folded away completely for storage.
• Loosen the handle knobs on the sides of the handles, and 

fold the upper handle down.

• Loosen the handle knobs, pull outwards on each side of 

the lower handle, and lift the sides of the lower handle 
past the edges of the handle mounting brackets. Fold the 
lower handle forward. Make sure not to bend or kink the 
power cord.

 

9

Tighten 

Loosen 

Fig. 11

Fig. 10

3

Alignment 
tabs

2

1

Summary of Contents for SUNJOE MJ409C

Page 1: ...g and any other condition that may affect its operation A guard or other part that is damaged should be properly repaired or replaced by an authorized service center unless indicated elsewhere in this manual 13 Keep guards in place and in working condition 14 Keep blades sharp 15 Keep hands and feet away from cutting area 16 Objects struck by the lawn mower blade can cause severe injuries to peopl...

Page 2: ...rd Do not service the mower with the charger connected or with the safety key inserted Do not use a damaged charger Replace the charger cords or the charger immediately Keep the mower and the charger away from water heat sources radiators heaters stoves etc flames and chemicals Do not dispose of this product in fire batteries inside this product may explode or leak IMPORTANT Safety Instructions fo...

Page 3: ...achine 4 Use extra care when approaching blind corners shrubs trees or other objects that may block your view of a child SERVICE GENERAL SERVICE 1 Keep all nuts and bolts tightly fastened 2 Never tamper with safety devices Regularly check to ensure they are in place and working properly 3 Keep the mower free from grass leaves or other debris buildup 4 If you strike a foreign object stop and inspec...

Page 4: ...tting Width 19 483 mm 5 Cutting Height 1 75 3 50 45 mm 89 mm 6 Grass Catcher Capacity 15 06 gallons 57 ltrs 7 Wheels Size 7 front 8 rear 8 Weight 97 lbs 44 kg w battery 64 lbs 29 kg w out battery 1 Switch 2 Safety Key 3 Hand Grip 4 Power Button 5 Self Propelled Lever 6 Upper Handle 7 Lower Handle 8 Handle Knob 9 Cable Clip 10 Battery 11 Motor Housing 12 Grass Catcher Bag 13 Grass Catcher Hook 14 B...

Page 5: ...ng the Grass Catcher Bag Fig 3 1 UNPLUG THE POWER CORD AND WAIT FOR BLADE TO COME TO A COMPLETE STOP 2 Lift the chute cover 3 While holding up the cover place the grass catcher bag hanger hooks into the opening on the chute cover to allow the hanger hooks to attach to the rod which secures the chute cover NOTE For optimal performance empty grass bag often during use A full grass bag will inhibit p...

Page 6: ... release first to the left so you can access control lever Hold the switch control lever for operation 2 To stop the lawn mower release the switch control lever 3 If your lawn mower is not going to be used for a while pull out the safety key The machine will not operate without the safety key inserted Self Propelled Lever Fig 8 1 After starting the mower and to have it self propelled just pull up ...

Page 7: ...tment 1 1 3 4 in 5 3 in 2 2 in 6 3 1 4 in 3 2 1 4 in 7 3 1 2 in 4 2 1 2 in Charging Procedure NOTE The battery can be charged in or out of the mower The charger that is supplied with this mower is a specially designed 2 stage charger Step 1 The red light will light up during the recharge cycle Step 2 The green light will light up when the battery is fully charged 1 Remove the jack cover 2 Plug the...

Page 8: ...n the fall Mulching Tips NOTE INSPECT THE AREA WHERE THE MOWER IS TO BE USED AND REMOVE ALL STONES STICKS WIRE AND OTHER DEBRIS THAT MIGHT BE THROWN BY THE ROTATING BLADE 1 Release the switch to turn the mower OFF when crossing any graveled area stones can be thrown by the blade 2 Set mower to the highest cutting height when mowing on uneven ground or in tall weeds 3 For effective mulching do not ...

Page 9: ...ebris will accumulate causing rust and corrosion Remove any buildup of grass and leaves on or around the motor cover do not use water Wipe the mower clean with a dry cloth occasionally If debris build up on the underside of the unit while using stop the motor and disconnect it from the power supply Tilt the mower forward or on its side and scrape it clean with an appropriate tool Storage The follo...

Page 10: ...o prevent accidental start ups remove the safety key when the mower is not in use Remove the battery when making any adjustments or when any of the four wheels must be lifted off the ground 3 Keep the handles dry clean and free of oil and grease 4 In order to reduce the risk of fire keep the motor free of grass leaves and debris build up 5 Frequently check the blade and motor mounting bolts for pr...

Page 11: ...NOTES 11 ...

Page 12: ...his warranty Parts used that are not genuine Snow Joe parts are not covered by this warranty Damages resulting from misuse alteration improper assembly improper adjustment neglect or accident which requires repair is not covered under this warranty Belts augers and tines are not covered under warranty belts augers and tines wear out and can be purchased at www snowjoe com or by calling 1 866 766 9...

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