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Black & Decker GK1940T - Troubleshooting; Maintenance

Black & Decker GK1940T
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11
ENGLISH
(Original instructions)
When supported at both ends:
u First, cut one third down to avoid splintering and second,
cut again to meet the first cut.
When supported at one end:
u First cut one third up to avoid splintering and second, cut
down to prevent splintering.
When on a slope (g. N):
u Always stand on the uphill side.
When attempting to cut a log on the ground (g. M):
u Secure the workpiece using chocks or wedges. The user
or a bystander should not steady the log by sitting or
standing on it. Make sure that the saw chain does not
contact the ground.
When using a saw horse (g. O):
This is strongly recommended whenever possible.
u Position the log in a stable position. Always cut on the
outside of the saw horse arms. Use clamps or straps to
secure the workpiece.
Troubleshooting
Problem Possible cause Possible
solution
Tool will not start Lock button not
pressed.
Press the lock
button.
Front guard in the
brake position
Reset front guard
Blown fuse Replace fuse
Tripped RCD Check RCD
Mains lead not
connected
Check mains
supply
Chain does not
stop instantly
when the tool is
switched off
Chain tension is
too slack
Check chain
tension
Problem Possible cause Possible
solution
Bar/chain appear
hot/smoking
Oil tank empty Check oil tank
level
Oil hole blocked
on chain bar
Clean oil hole
Chain tension is
too tight
Check chain
tension
Guide bar
sprocket
nose needs
greasing
Oil the guide bar
sprocket nose
Chainsaw does
not cut well
Chain on
backwards
Check/modify
chain direction
Sharpen
Chainsaw not
using oil
Debris in tank Empty oil from
tank and replace
Oil hole in cap
blocked
Remove debris
from hole
Debris in chain
bar
Remove debris
and clean the
chain bar
Debris in oil outlet remove debris
Maintenance
Regular maintenance ensures a long effective life for the
tool. We recommend you make the following checks on a
regular basis.
Warning! Before performing any maintenance on power tools:
u Switch off and disconnect the tool from the mains supply.
Oil level
The level in the reservoir should not be allowed to fall below
a quarter full.
Saw chain and guide bar (g. I)
u After every few hours of use and before storage, remove
the guide bar (7) and the saw chain (6) and clean them
thoroughly.
u Make sure that the guard is clean and free from debris.
u On reassembling, turn the guide bar (7) through 180°,
remove the slider tensioner (13) with an allen key and re
attach to the opposite side of the guide bar (7). Important
do not over tighten.

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