Echo DCS-2500T Operator's Manual page 35

Sprocket
* Worn out: 0.5 mm
Automatic oiler
1. Oil adjusting screw
2. Decrease
Cooling system
1. Air outlet
1. Air filter
Replacement guide bar and chain
IMPORTANT
 Only use replacement bars and chains specified by the manufacture or the equivalent. Otherwise, there may be a risk of ac-
cidents and damage to the machine.
Length cm
20
25
1.Brake drum
3. Increase
2. Air inlet
Guide bar
C20HA4-52CL- ED
C25HA4-60CL- ED
C25S91-40SL- ET
Maintenance and care
1. The damaged sprocket will cause premature damage or
wear of saw chain. - When the sprocket has worn out 0.5 mm
or more, replace it.
2. Check sprocket when you install new chain. Replace it if
worn.
3. Check brake drum, if it not rotates by hand, ask your dealer
for repair.
1. The discharge volume of the automatic oiler is adjusted to 7
mL/min approximately at 7000 r/min, prior to shipment from
factory.
2. To increase the delivery volume, turn the adjusting screw an-
ticlockwise.
3. When the adjusting screw touches stopper and stops, this
position indicates maximum discharge volume. (13 mL/min
at 7000 r/min).
4. Do not turn the adjusting screw beyond the maximum or min-
imum limit of volume adjustment.
1. Check periodically.
2. Remove dirt and dust of various sorts blocking the air inlet
and the air outlet.
IMPORTANT
 Clean the unit with the air filter attached to it in order to
prevent trash from entering inside.
Air filter
1. Make sure battery is removed.
2. Remove the air filter.
3. Remove the remaining chips with compressed air.
4. Brush dirt from air filter or wash it in a suitable cleaner. If filter
is excessive dirty or no longer fits properly, replace it.
5. Completely dry the air filter.
6. Reinstall the air filter.
Chain
A4S-52E
A4S-60E
91PX-40E
33
Sprocket (Part number)
(A556-001910)
(A556-001920)