5
RAPTOR CARBIDE CHAIN CARE
While carbide chains are extremely durable, improper use and
poor saw maintenance can cause chain damage and failure.
During operation, the chain will heat up and loosen on the bar.
is is normal. A er cooling, the chain will return to its original
size. Chain stretch will continue throughout the chain’s life. To
ensure optimum chain life and performance, always ensure proper
chain tension is set prior to use. To set the chain’s tension, see the
directions under Operating Procedures, Pre-Operation.
NEW CHAIN BREAK-IN
When breaking in a new chain, run at low speed for two (2)
minutes. Ensure that there is adequate oil lubrication to the bar
and chain. Stop the engine and check chain tension again. If the
chain has loosened, tighten it to the correct tension. Check a er a
few easy cuts and readjust if nececssary. To set the chain’s tension,
see the appropriate directions under Operating Procedures, Pre-
Operation.
NOTE: e drive sprocket should be changed every time a
new chain is put on a saw.
SHARPENING
• e Raptor carbide chain is ground at an angle of 29 degrees
with 15 degrees on the vertical.
• Depth gauge settings: 25 to 30 thousandths of an inch. When
the depth gauge is led more than 30 thousandths of an inch,
it increases the possibility for the carbide tip to break o .
• As a general rule, the depth gauges should be led with each
sharpening of the chain using a at le and depth gauge tool.
• Carbide chain sharpening requires the use of specialized
diamond-abrasive tools. “Flat facing” is done using a 1FF1
style diamond wheel. “Round facing” is done using an EZE-
Lap diamond or a contoured diamond wheel.
CHAIN REPAIR
Inspect chain a er each use. When a chain has more than ve
cutters missing or heavily damaged, it is recommended the
chain be taken out of service for repair. If two or more cutters in
succession are missing or are damaged, the chain should be taken
out of service for repair. Considerable damage could occur to the
remaining cutters if chain is used.
Cutter replacement depends on overall condition of the rest of the
cutters to determine if the chain should be repaired or replaced.
As a general rule, if ve or more cutters are missing or damaged it
is more cost e ective to replace the chain.
e drive sprocket should be changed every time a new chain is
put on a saw. e cutting performance is diminished when a worn
drive sprocket has a loose t, causing “play” as the drive links of a
new chain are pulled through. is can put premature wear on a
new chain, causing product failure.
Tempest o ers complimentary chain evaluation and optional chain
repair/sharpening. Contact customer service at 800.346.2143 with
questions regarding chain repair service.
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