![background image](http://html1.mh-extra.com/html/stihl/rma-443/rma-443_instruction-manual_1379471038.webp)
► Switch the lawn mower off, pull out the activa‐
tion key and remove the battery.
► Upend the lawn mower.
► Remove the blade.
► Sharpen the blade. Observe the sharpening
angle and cool the blade, 20.2.
Bluing of the blade during sharpening is not
permitted.
► Attach the blade.
► If anything is unclear: consult a STIHL special‐
ist dealer.
18 Repairing
18.1
Repairing the Lawn Mower
The user should not repair the lawn mower or
blade themselves.
► If the lawn mower or blade is damaged: do not
use the lawn mower or blade and consult a
STIHL specialist dealer.
► If warning signs are illegible or damaged: have
the warning signs replaced by a STIHL spe‐
cialist dealer.
19 Troubleshooting
19.1
Remedying Lawn Mower or Battery Faults
Fault
LEDs on the
battery
Cause
Remedy
The lawn mower
does not start
when switched
on.
1 LED flashes
green.
The battery charge
state is too low.
► Charge the battery.
1 LED illumina‐
tes red.
The battery is too
warm or too cold.
► Pull out the activation key.
► Remove the battery.
► Allow the battery to cool down or warm
up.
3 LEDs flash
red.
There is a fault in the
lawn mower.
► Pull out the activation key.
► Remove the battery.
► Clean the electric contacts in the battery
compartment.
► Fit the battery.
► Switch the lawn mower on.
► If 3 LEDs still flash red: do not use the
lawn mower and consult a STIHL spe‐
cialist dealer.
3 LEDs illumi‐
nate red.
The lawn mower is
too warm.
► Pull out the activation key.
► Remove the battery.
► Allow the lawn mower to cool down.
4 LEDs flash
red.
There is a fault in the
battery.
► Remove the battery and fit it again.
► Switch the lawn mower on.
► If 4 LEDs still flash red: do not use the
battery and consult a STIHL specialist
dealer.
The electrical connec‐
tion between the lawn
mower and battery
has been interrupted.
► Pull out the activation key.
► Remove the battery.
► Clean the electric contacts in the battery
compartment.
► Insert the activation key.
► Fit the battery.
The lawn mower or
battery are damp.
► Pull out the activation key.
► Remove the battery.
► Clean the lawn mower.
► Allow the lawn mower or battery to dry.
The resistance at the
blade is too great.
► Set a higher cutting height.
► Switch the lawn mower on in lower
grass.
The area around the
blade is blocked.
► Clean the lawn mower.
English
18 Repairing
38
0478-131-9960-C
Summary of Contents for RMA 443
Page 231: ...STIHL STIHL 4 4 EN 166 4 5 4 5 1 4 pycc 0478 131 9960 C 231...
Page 232: ...4 5 2 10 C 50 C 4 6 4 6 1 STIHL STIHL pycc 4 232 0478 131 9960 C...
Page 233: ...STIHL 4 6 2 20 2 20 2 STIHL STIHL 4 6 3 15 4 7 4 pycc 0478 131 9960 C 233...
Page 234: ...25 46 6 4 8 4 8 1 4 8 2 pycc 4 234 0478 131 9960 C...
Page 235: ...4 9 4 9 1 4 9 2 10 C 50 C 4 10 4 pycc 0478 131 9960 C 235...
Page 242: ...1 2 1 2 3 4 13 13 1 14 14 1 1 2 1 2 14 2 pycc 13 242 0478 131 9960 C...
Page 245: ...STIHL STIHL 19 19 1 1 1 3 3 STIHL 3 4 4 STIHL 19 pycc 0478 131 9960 C 245...
Page 246: ...3 1 pycc 19 246 0478 131 9960 C...
Page 255: ...STIHL STIHL 4 4 EN 166 4 5 4 5 1 4 0478 131 9960 C 255...
Page 256: ...4 5 2 10 C 50 C 4 6 4 6 1 STIHL STIHL STIHL 4 256 0478 131 9960 C...
Page 257: ...4 6 2 20 2 20 2 STIHL STIHL 4 6 3 15 4 7 25 46 6 4 0478 131 9960 C 257...
Page 258: ...4 8 4 8 1 4 8 2 4 258 0478 131 9960 C...
Page 259: ...4 9 4 9 1 4 9 2 10 C 50 C 4 10 4 0478 131 9960 C 259...
Page 261: ...7 7 1 1 2 3 4 5 2 4 6 3 7 8 3 8 5 5 2 8 5 6 9 10 5 6 10 11 7 2 7 2 1 1 2 7 0478 131 9960 C 261...
Page 262: ...1 1 2 2 1 2 7 2 2 1 2 1 7 3 7 3 1 1 2 3 4 1 7 3 2 1 2 3 4 5 1 2 7 3 3 7 262 0478 131 9960 C...
Page 263: ...8 8 1 1 2 3 2 4 1 8 2 1 2 3 3 1 9 9 1 1 2 3 1 9 2 10 10 1 10 1 1 1 8 0478 131 9960 C 263...
Page 266: ...1 2 1 2 3 4 13 13 1 14 14 1 1 2 1 2 14 2 13 266 0478 131 9960 C...
Page 270: ...LED 3 LED 19 270 0478 131 9960 C...
Page 274: ...j k l m n o p 24 5 a b c d e f g h 24 274 0478 131 9960 C...
Page 275: ...24 0478 131 9960 C 275...
Page 276: ...www stihl com 04781319960C 04781319960C 0478 131 9960 C 0478 131 9960 C...