72LGX, 73LGX, and 75LGX
SUPER GUARD® CHAINS
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OREGON 72LGX, 73LGX, and 75LGX (3/8"-pitch Super Guard ) chains
feature cutters that have an advanced grind geometry that is "work ready". This
series saw chain is only for professionals who demand saw chain that delivers
high performance, resists stretch, simple to maintain, provides long life, and is con-
sistent from loop to loop.
CHAIN PITCH AND GAUGE
PITCH
3/8"
GAUGE
72LGX .050"
73LGX .058"
75LGX .063"
KICKBACK – ANSI CLASSIFICATION
Features
Benefits
72LGX, 73LGX, and 75LGX are
yellow-label chains. Though these
chains have ramped depth gauges
which reduce kickback energies,
these are NOT low-kickback chains.
These chains should be used ONLY
by individuals with experience and
specialized training for dealing with
kickback.
Advanced grind geometry
•
•
•
Significantly enhanced out-of-box grind
No out-of-box maintenance needed
Superior cutting efficiency, less force-feed
required
•
Improved fuel economy
Blued cutters
Tumbled parts
•
•
•
•
Superior corrosion resistance
Base-cutter hardness consistency
Pro-look
RECOMMENDED TYPES OF USE
Improved strength
•
•
Smooth finish
Improved joint articulation, combats
tight joints
Commercial
Professional
Offset ramp-shaped depth
gauges
•
•
Offset reduces roughness, helps prevent
cutter from diving into the sidewall of the cut
The ramped shape reduces kickback ener-
gies without affecting performance
RECOMMENDED SAW SIZES
Clean ground gullets
•
•
Increases chip flow, less chain clogging
No out-of-the box filing needed
Use with gasoline-powered saws
3.0 to 6.0 cu. in. (50 to 100 cc)
Long, high-strength cutter
top plate
•
•
Resists breakage
Longer cutter life
Top-plate-angle witness
mark
•
Sharpening is easy and consistent, every
time and serves as end-of-life indicator
RECOMMENDED BAR LENGTHS
Lubrilink™ tie straps
* patent pending
•
More oil stays where it's needed: on the chain
12 in. to 36 in. (30 to 91 cm)
KICKBACK-REDUCING FEATURES
Ramp-shaped
depth gauges
on each cutter
CUTTER SEQUENCE
Standard sequence: 72LGX, 73LGX, 75LGX
Skip sequence: 72JGX, 73JGX, 75JGX
72LGX F&B
A107022
AG
1108
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A
B
C
D
TOp pLaTe aNGLe
DOWN aNGLe
DepTh GaUGe SeTTING
FINISheD CUTTeR
FINISheD CUTTeR
FILING
INSTRUCTIONS
(without file guide)
*
.025"
(.6 mm)
25º
10º
VISe ROTaTe aNGLe
VISe TILT aNGLe
heaD TILT aNGLe
DepTh GaUGe SeTTING
10º
GRINDING
INSTRUCTIONS
.025"
(.6 mm)
55º
25º
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When using an OREGON file guide, ALWAYS
hold it level, 0°, flat on the Top Plate.
*
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OREGON 72LGX/JGX, 73LGX/JGX, and 75LGX/JGX Super
Failure to follow filing instructions can
increase the level of kickback which
can result in severe injury to the saw operator or bystanders.
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Guard chains may be capable of kickback that could result in
serious injury to the saw operator or bystanders.
Although these chains have features designed to reduce kickback energies, these
are NOT low-kickback chains. Do not use OREGON 72LGX/JGX, 73LGX/JGX, or
75LGX/JGX Super Guard chains unless you have experience and specialized training
for dealing with kickback. Saw chain with lower kickback potential is available.
Do not exceed the depth-gauge setting shown above
*
*
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Always file depth gauges back to their original rounded
or ramped shape after lowering
Maintenance Tools
File Size
Assembled File Round Files
Guide
Depth Gauge
Tool, .025"
Flat File
Bench Grinder Mini Grinder
Wheel 5 3/4"
Wheel, 4 1/4"
7/32" (5.6mm)
31686 (EA.)
70502 (12-PK.)
40458 (2-PK.)
31941 (10-PK.)
12211 (12-PK.)
OR534-316
(3/16" Thick)
OR4125-316
(3/16" Thick)
Chain Replacement Parts
Chain Type
72LGX/JGX
73LGX/JGX
75LGX/JGX
Left-hand Cutter
Right-hand Cutter Tie Strap
Preset Tie Strap
P23910 (25-PK.)
P23910 (25-PK.)
P23921 (25-PK.)
Drive Link
P26197 (25-PK.)
P26197 (25-PK.)
P26197 (25-PK.)
P26198 (25-PK.)
P26198 (25-PK.)
P26198 (25-PK.)
P23837 (25-PK.)
P23837 (25-PK.)
P23837 (25-PK.)
P65715 (25-PK.)
P68183 (25-PK.)
P30927 (25-PK.)
Which cutter sequence is best, standard or skip?
What type of cutting do you do?
The cutter sequence to use:
I cut "non-fibrous" woods of average size, with guide bars up to 24"
I cut fibrous woods, such as cedar or hemlock
Standard sequence (72LGX, 73LGX, 75LGX)
Skip sequence (72JGX, 73JGX, 75JGX)
Skip sequence (72JGX, 73JGX, 75JGX)
I cut large wood using very long bars, approximately 28" or longer
Do you cut wood in dirty or abrasive conditions?
If you cut abrasive woods such as railroad ties, skidded wood, fire damaged areas, par-
Standard
Chain Part No.
Multicut
Part No.
tially logged areas after a skidder, or any place where wood is dirty, we recommend you
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use the MultiCut™ versions of OREGON chains. MultiCut™ chains have extra-heavy-
72LGX
73LGX
75LGX
M72LPX
M73LPX
M75LPX
duty chrome plating applied with an advanced plating process to withstand these kinds of
tough, dirty conditions. It also allows you to maintain your saw chain without the need of
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any special tools. Contact OREGON or your authorized OREGON distributor for further
information on MultiCut™ chains.
(LGX not available in Multicut)
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For more information on these and other OREGON products, contact your authorized OREGON distributor, or:
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OREGON | BLOUNT, INC. PO Box 22127 · Portland, OR, U.S.A. 97269-2127
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IN CANADA: OREGON DISTRIBUTION LTD. 505 Edinburgh Rd. N., Guelph, Ontario, Canada N1H 6L4
Phone: 519-822-6870 Fax: 519-822-4999
Printed in USA 72LGX F&B A107022 AG 1108
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