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Safety Instructions for  
Walk-Behind Mowers

GENERAL OPERATION

1. 

Read, understand, and follow all instructions on the 
machine and in the manual(s) before starting.

2. 

Do not put hands or feet near or under the machine. 
Always stay clear of the discharge opening.

3. 

Only allow responsible adults, who are familiar with the 
instructions, to operate this machine.

4. 

Clear the area of objects such as rocks, wire, toys, etc., 
which could be thrown by the blade. Stay behind the 
handle when the engine (motor) is running.

5. 

Be sure the area is clear of bystanders before 
operating. Stop machine if anyone enters the area. 

6. 

Do not operate machine barefooted or while wearing 
sandals. Always wear substantial footwear.

7. 

Do not pull machine backward unless absolutely 
necessary. Always look down and behind before and 
while moving backward.

8. 

Never directly discharged material toward anyone. 
Avoid discharging material against a wall or obstruction. 
Material may ricochet back toward the operator. Stop 
the blade when crossing gravel surfaces.

9. 

Do not operate machine without the entire grass 
catcher, discharge guard, rear guard, or other safety 
protective devices in place and working.

10. 

Never leave a running machine unattended.

11. 

Stop the engine (motor) and wait until the blade comes 
to a complete stop before cleaning the machine, 
removing grass catcher, or unclogging the discharge 
guard.

12. 

Operate machine only in daylight or good artificial light.

13. 

Do not operate machine while under the influence of 
alcohol or drugs.

14. 

Never operate mower in wet grass. Always be sure of 
your footing; walk; never run. 

15. 

Disengage the drive system, if so equipped, before 
starting the engine (motor).

16. 

If the machine should start to vibrate abnormally, 
stop the engine (motor) and check for the cause 
immediately. Vibration is generally a warning of trouble.

17. 

Always wear eye protection when operating machine.

18. 

See manufacturer’s instructions for proper operation 
and installation of accessories. Only use accessories 
approved by the manufacturer.

SLOPE OPERATION

Slopes are a major factor related to slip and fall accidents, 
which can result in severe injury. Operation on all slopes 
requires extra caution. If you feel uneasy on a slope, do not 
mow it.

1. 

Mow across the face of slopes; never up and down. 
Exercise extreme caution when changing direction on 
slope.

2. 

Watch for holes, ruts, bumps, rocks, or other hidden 
objects. These may cause an unexpected slip or fall.

3. 

Do not mow on wet grass or excessively steep slopes. 
Poor footing could cause a slip and fall accident.

4. 

Do not mow near drop offs, ditches, or embankments. 
You could lose your footing or balance.

CHILDREN

Tragic accidents can occur if the operator is not alert to the 
presence of children. Children are often attracted to the 
machine and the mowing activity. Never assume that children 
will remain where you last saw them. 

1. 

Keep children out of the mowing area and under the 
watchful care of a responsible adult other than the 
operator.

2. 

Be alert and turn mower off if a child enters the area.

3. 

Never allow children to operate the machine.

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 tight.

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 inspect the 
machine. Repair, if necessary, before starting.

5. 

Never make any adjustments or repairs with the engine 
(motor) running.

6. 

Check the grass catcher components and the 
discharge guard frequently and replace with 
manufacturer’s  recommended parts, when necessary.

7. 

Mower blades are sharp. Wrap the blade or wear 
gloves, and use extra caution when servicing them.

8. 

Maintain or replace safety and instruction decals, as 
necessary.

Summary of Contents for MJ420C

Page 1: ...arts mounting 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 injur...

Page 2: ...e protection when operating machine 18 See manufacturer s instructions for proper operation and installation of accessories Only use accessories approved by the manufacturer SLOPE OPERATION Slopes are a major factor related to slip and fall accidents which can result in severe injury Operation on all slopes requires extra caution If you feel uneasy on a slope do not mow it 1 Mow across the face of...

Page 3: ... full battery 25 to 90 minutes No load speed 1200 rpm 10 Cutting width 16 inches 40 cm Cutting height 0 75 1 02 1 46 1 69 inches Battery operating voltage 24V DC Charging period for fully discharged battery 16 hours Motor output power 54 W Battery charger output 28 6V 800mA Sound Power Level LWA 94 dB A Sound Pressure Level LPA 70 dB A Vibration 1 0 m s2 Weight 18 3 Kg including battery Dependant ...

Page 4: ...ach one Fig 4 3 Use 4 nuts and 4 long bolts to hold the upper and middle sections in place on the Lower Frame Insert the bolts from the outside and fit the nuts on the inside of the frame Fig 5 4 Once the frame is assembled connect the plug on the handle cable to the socket on the main unit Tighten the screw ring to secure the cable Fig 5 5 Secure the cable to the handle using the 3 cable clips le...

Page 5: ...es 16 hours to charge fully from flat 2 To refit the battery remove the charger lead and lower it into the cavity on the top of the product in the correct orientation If the battery does not fit correctly remove it and check there are no obstructions in the cavity Rotate the top handle to the front of the mower to lock into position Fig 9 To keep the battery in prime condition it is best to charge...

Page 6: ...Battery Level Warning This mower uses sealed Pb lead acid batteries which like all batteries can be damaged if they are over discharged The electronic circuit will warn of low battery level and RED LED will be on this indicates that the battery should be recharged at this point GREEN LED ON Normal operation RED LED ON Battery flat please charge to prevent over discharge damage Blade Adjustment SHA...

Page 7: ...d the mower to release the hooks 2 Lift up and clear of the mower Always empty clippings before storage 3 Replacing the grass collector is the reverse of the removal process Starting Stopping The handle is designed with a safety button to prevent accidental starting 1 Press and hold the safety button A located on the left of the upper handle then squeeze the operation lever B towards the upper han...

Page 8: ... damage from overload allow a few minutes for the mower to cool clear any debris and resume Press the reset button and hold the operation lever up to restart the mower Where should I keep my battery The battery should ideally be stored between 10ºC and 24ºC 50ºF and 75ºF so the best place would be inside your house or garage IMPORTANT Charge battery after each use My lawn is very hard to cut what ...

Page 9: ...r of the machine thoroughly using a soft brush or cloth Do not use water solvents or polish Store the lawn mower in a dry place and oil the blades Do not place other objects on top of the machine For storage in confined spaces the handles can be removed from the mower Disconnect the power cord and flex the lower handles to remove from the frame locating lugs Never Store the Mower With a Flat Batte...

Page 10: ...re not covered by this 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 and augers are not covered under warranty belts and augers wear out and can be purchased at the Snow Joe Center Snow Joe LLC m...

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