G6200
GB-14
WARNING
•This saw is equipped with one of the following low
kickback bar/chain combinations:
Zenoah Part Number
Bar Size Guide Bar Saw Chain
16 3670-52112 848CC3LG60 (73LGX)
18 3673-52113 848CC3LG66 (73LGX)
20 3674-52113 848CC3LG72 (73LGX)
WARNING
•Be sure to round off the front edge to reduce the
chance of kickback or tie-strap breakage.
Make sure every cutter has the same length and edge
angles as illustrated.
■ Guide Bar
•Reverse the bar occasionally to prevent partial wear.
•The bar rail should always be square. Check for wear
of the bar rail. Apply a ruler to the bar and the out-
side of a cutter. If a gap is observed between them,
the rail is normal. Otherwise, the bar rail is worn.
Such a bar needs to be corrected or replaced.
Cutter length
Filing angle
Side plate angle
Top plate cutting angle
Ruler
Gap
No gap
Chain tilts
8. Maintenance of Saw Chain and Guide Bar■ Saw Chain
WARNING
•It is very important for smooth and safe operation
to always keep the cutters sharp.
The cutters need to be sharpened when:
• Sawdust becomes powder-like.
•You need extra force to saw in.
•The cut path does not go straight.
•Vibration increases.
•Fuel consumption increases.
Cutter setting standards:
WARNING
•Be sure to wear safety gloves.
Before filing:
•Make sure the saw chain is held securely.
•Make sure the engine is stopped.
• Use a round file of proper size for the chain.
Chain type: 73LGX
File size: 7/32 in. (5.6 mm)
Place the file on the cutter and push straight forward.
Keep the file position as illustrated.
After each cutter has been filed, check the depth gauge
and file it to the proper level as illustrated.
Appropriate gauge checker
Depth gauge standard
73LGX: 0.3″ (0.75 mm)
Make the shoulder round