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105020
ELECTRIC CHAIN SAW
®
For more information, visit www.desatech.com
EXTENSION CORDS
Use proper extension cord with this chain
saw. Use only extension cords marked for
outdoor use. Use an extension cord no less
than 1.5 mm
2
(14SWG) at distances up to
30 meters (100 feet). The cord must be
marked with suffix W following the cord
type marking.
Example:
SJTW
Use an extension cord heavy enough to carry
the current your saw will draw. An under-
sized cord will cause a voltage drop at the
saw, loss of power, and overheating.
Keep cord away from cutting area. Make
sure cord does not catch on branches or logs
during cutting. Inspect cords often. Replace
damaged cords.
The extension cord may come undone from the
power cord during use. To avoid this, make a
knot with the two cords as shown in Figure 7.
Extension
Cord
Chain Saw
Power Cord
Figure 7 - Tying Extension Cord and Power
Cord in Knot
Figure 5 - Turning Adjusting Screw
Figure 6 - Saw Chain Adjustment
SAW CHAIN
TENSION
ADJUSTMENT
WARNING: Unplug chain saw
from power source before adjust-
ing saw chain tension.
WARNING: Cutting edges on
chain are sharp. Use protective
gloves when handling chain.
Note:
For pre assembled models, the saw
chain tension is properly set at factory. A
new chain will stretch. Check new chain
after first few minutes of operation. Allow
chain to cool down. Follow steps below to
readjust saw chain tension.
1. Before adjusting chain, make sure guide
bar nuts are only finger tight (see Figure
3, page 7). Also make sure adjusting
block is in oval adjusting hole on guide
bar (see Figures 3 and 4, page 7).
2. Turn adjusting screw clockwise until all
slack is out of chain (see Figure 5).
Note:
There should be no gap between
side links of chain and bottom of guide
bar (see Figure 6)
3. Wearing protective gloves, move chain
around guide bar. Chain should move
freely. If chain does not move freely,
loosen chain by turning adjusting screw
counterclockwise.
WARNING: Maintain proper
chain tension always. A loose
chain will increase the risk of
kickback. A loose chain may jump
out of guide bar groove. This may
injure operator and damage
chain. A loose chain will cause
chain, guide bar, and sprocket to
wear rapidly.
4. After chain tension is correct, tighten
guide bar nuts firmly. If not, guide bar
will move and loosen chain tension.
This will increase the risk of kickback.
This can also damage saw.
Note:
A new
chain will stretch. Check new chain
after first few minutes of operation.
Allow chain to cool down. Readjust
chain tension.
OPERATING CHAIN
SAW
WARNING: Read and under-
stand this owner’s manual before
operating this saw. Make certain
you read and understand all
Safety
Warnings.
Improper use of this
chain saw can cause severe in-
jury or death from fire, electrical
shock, or body contact with mov-
ing chain, or falling wood.
Guide Bar
Correct
Tension
Guide Bar
Gap
Incorrect
Tension
Guide Bar Nuts