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56 VOLT LITHIUM-ION CORDLESS GRASS TRIMMER — ST1620E-T

16

TROUBLESHOOTING

PROBLEM

CAUSE

SOLUTION

Grass trimmer fails 
to start

 

The battery pack is not attached to the 
grass trimmer.

 

Attach the battery pack to the grass trimmer.

 

No electrical contact between the grass 
trimmer and battery.

 

Remove battery, check contacts and reinstall 
the battery pack.

 

The battery pack is depleted

 

Charge the battery pack.

 

The lock-off button is not depressed 
before pressing the trigger.

 

Press down the lock-off lever and hold it, then 
depress the trigger to turn on the tool.

 

The motor shaft or trimmer head is bound 
with grass.

 

Remove the grass from the motor shaft and 
trimmer head.

Grass trimmer 
stops while cutting.

 

The guard is not mounted on the trimmer, 
resulting in an overly long cutting line and 
motor overload.

 

Remove the battery pack and mount the guard 
on the trimmer.

 

Heavy cutting line is used.

 

Use recommended nylon cutting line with 
diameter 2.4 mm.

 

The battery pack or grass trimmer is too 
hot.

 

Cool the battery or grass trimmer.

 

The battery pack is disconnected from 
the tool.

 

Re-install the battery pack.

 

The battery pack is depleted.

 

Charge the battery pack.

Trimmer head will 
not advance line.

 

The motor shaft or trimmer head is bound 
with grass.

 

Stop the trimmer, remove the battery, and clean 
the motor shaft and trimmer head.

 

There is not enough line on the spool or 
the line breaks from the eyelet.

 

Remove the battery and replace the cutting 
line follow “

LINE REPLACEMENT

” section in 

this manual.

 

The line is tangled. 

 

Remove the battery; remove the line from the 
trimmer head and rewind following “

RELOAD 

THE CUTTING LINE

” section in this manual.

 

The line is too short.

 

Remove the battery and pull the lines manually 
while alternately pressing down and releasing 
the trimmer head.

 

Heavy cutting line is used.

 

Use recommended nylon cutting line with 
diameter 2.4 mm.

 

Trimmer head malfunction.

 

Replace the trimmer head immediately 
performed by a qualified service technician. 

Grass is wrapped 
around trimmer 
head and motor 
housing.

 

Cutting tall grass at ground level

 

Cut tall grass from the top down, removing no 
more than 8 inches in each pass to prevent 
wrapping.

The blade is not 
cutting the line.

 

The line-cutting blade on the edge of the 
guard has become dull.

 

Follow instructions to sharpen the line-cutting 
blade with a file or replace it with a new blade.

Cracks on the 
trimmer head

 

The trimmer head is worn out.

 

Replace the trimmer head immediately; follow 
the section "

TRIMMER HEAD REPLACEMENT

in this manual.

Summary of Contents for ST1620E-T

Page 1: ...ION CORDLESS GRASS TRIMMER MODEL NUMBER ST1620E T WARNING To reduce the risk of injury the user must read and understand the Operator s Manual before using this product Save these instructions for fut...

Page 2: ...Release Tab 14 Line cutting Blade 6 Guard 13 Cutting Line 10 Hex Wrench 19 Ejection Mechanism 17 Latch 18 Electric Contacts 16 Lock off Trigger 15 Variable Speed Trigger 1 Rear Handle 8 Height Lockin...

Page 3: ...D E G F Clamping Block Wing Nut Quick release Lever Front Handle H Clamping Block J Height Locking Clamp Mounting Zone Hinge I Quick release Lever Wing Nut K Height Locking Clamp...

Page 4: ...ap Loop I n s t a l l a t i o n Z o n e Hex Nut Screw Knob Battery mounting Slot Latch N Variable Speed Trigger Lock off Switch M2 Press to Release O 2 Speed Switch Speed Indicator P Dangerous Cutting...

Page 5: ...Q W R Eyelet Lower Cover Cutting Line T 7 18cm S Cutting Line U Lower Cover Assembly Release Tab V Slot Release Tab X Spool Assembly Lower Cover Bushing Nut...

Page 6: ...Z Y...

Page 7: ...epicts and describes safety symbols that may appear on this product Read understand and follow all instructions on the machine before attempting to assemble and operate it Safety Alert Precautions tha...

Page 8: ...outdoor use Use of a cord suitable for outdoor use reduces the risk of electric shock If operating a power tool in a damp location is unavoidable use a residual current device RCD protected supply Use...

Page 9: ...tery packs may create a risk of injury and fire When battery pack is not in use keep it away from other metal objects like paper clips coins keys nails screws or other small metal objects that can mak...

Page 10: ...ables better control of the machine in unexpected situations When cutting brush or saplings that are under tension be alert for spring back When the tension in the wood fibres is released the brush or...

Page 11: ...do not operate this product until the parts are replaced Use of this product with damaged or missing parts could result in serious personal injury WARNING Do not attempt to modify this product or crea...

Page 12: ...NOTICE The front handle may need to be repositioned after the trimmer height is changed ATTACHING SHOULDER STRAP MODEL NUMBER AP1500 For safe and better operation put the strap over one of your shoul...

Page 13: ...speed switch to change cutting speed between the low and high Fig O The speed indicator will display the active speed status one light for low speed and two lights for high speed The low speed range p...

Page 14: ...cutting line out from the spool Follow the section RELOAD THE CUTTING LINE in this manual to reload the line RELOAD THE CUTTING LINE NOTICE When the cutting line gets stuck in the trimmer head you wi...

Page 15: ...s pine and lemon and by solvents such as kerosene Moisture can also cause a shock hazard Wipe off any moisture with a soft dry cloth Use a small brush or the air discharge of a small vacuum cleaner br...

Page 16: ...ck Trimmer head will not advance line The motor shaft or trimmer head is bound with grass Stop the trimmer remove the battery and clean the motor shaft and trimmer head There is not enough line on the...

Page 17: ...clean it thoroughly Motor is overheated due to repeatedly operating the line winding system Let the grass trimmer work under no load for a few minutes to cool the motor then try to reload the line Lo...

Page 18: ...Ltd NZBN 9429049277616 Chervon warrants to the original domestic purchaser that this product will be free from defects in materials and workmanship for 5 years from date of purchase and any battery or...

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