Use and Care Manual

OPERATION CS-7310P
38 X7503340000
© 10/20 ECHO Incorporated
Bucking
Bucking is the sawing of a log or
fallen tree into smaller pieces. There
are a few basic rules which apply to
all bucking operations.
• Keep both hands on the handles
at all times.
• Support logs if possible.
• When cutting on a slope or
hillside, always stand uphill.
Keep in mind that the wood is heavy and that it will bend and pinch the saw
if improperly supported. The trunk will weaken at the point where you make
the cut unless the tree is lying on perfectly flat ground or supported as
shown. If you make the cut with the tree on the ground, don’t let the saw’s
chain dig into the earth; it is harmful for the saw, and you stand a good
chance of being struck by flying debris.
To cut the trunk, use the bucking and two-cut sequence shown. The first cut
should be no deeper than one-third the trunk diameter.
Chain And Guide Bar Combination
The following combinations are recommended for model CS-7310P.
Guide Bar Saw Chain
Length mm
(in.)
ECHO Part No. Pitch mm (in.) Type Links
0.050 Gauge
508 (20) 20H0PS3872 3/8” 72LPX72CQ 72
610 (24) 24H0PS3884 3/8” 72LPX84CQ 84
711 (28) 28H0PS3893 3/8” 72LPX93CQ 93
813(32) 32H0PS3805 3/8” 72LPX105CQ 105
0.058 Gauge
508 (20) 20H8PS3872 3/8” 73LPX72CQ 72
610 (24) 24H8PS3884 3/8” 73LPX84CQ 84
Support
Finish cut
Uphill Position
First cut