McCulloch CS 42S, Operator'S Manual

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MAINTENANCE
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WARNING: Disconnect the spark plug
before performing maintenance except for
carburettor adjustments.
We recommend all service and adjustments
not listed in this manual be performed by an
authorized or Master Service Dealer.
GENERAL RECOMMENDATIONS
The warranty on this unit does not cover items that
have been subjected to operator abuse or negligence.
To receive full value from the warranty, the operator
must maintain the unit as instructed in this manual.
Various adjustments will need to be made periodically
to properly maintain your unit.
IMPORTANT: Have all repairs other than the
recommended maintenance described in the
instruction manual performed by an authorized
service dealer.
If any dealer other than an authorized service
dealer performs work on the product, the company
may not pay for repairs under warranty. It is your
responsibility to maintain and perform general
maintenance.
MAINTENANCE SCHEDULE
Before each use
‡
Check fuel mixture level
‡
Check bar lubrication
‡
Check chain tension
‡
Check chain sharpness
‡
Check for damaged parts
‡
Check for loose caps
‡
Check for loose fasteners
‡
Check for loose parts
Every 5 hours*
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‡
Inspect and clean chain brake
‡
Inspect and clean guide bar
Every 25 hours*
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Yearly
‡
Replace spark plug
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* Each hour of operation is approximately 2 tanks of
fuel.
MAINTENANCE PROCEDURES
CHECK FOR DAMAGED OR WORN PARTS
Contact an authorized service dealer for replacement
of damaged or worn parts.
NOTE: It is normal for a small amount of oil to
appear under the saw after engine stops. Do not
confuse this with a leaking oil tank.
‡
N/STOP Switch - Ensure ON/STOP switch functions
properly by pushing the switch down. Make sure
engine stops; then restart engine and continue.
‡
Fuel Tank - Do not use saw if fuel tank shows signs
of damage or leaks.
‡
Oil Tank - Do not use saw if oil tank shows signs of
damage or leaks.
CHECK FOR LOOSE FASTENERS AND
PARTS
‡
Bar Nuts
‡
Chain
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‡
Cylinder Shield
‡
Air Filter
‡
Handle Screws
‡
Vibration Mounts
‡
Starter Housing
‡
Front Hand Guard
CHECK CHAIN SHARPNESS
A sharp chain makes wood chips. A dull chain makes
a sawdust powder and cuts slowly. See CHAIN
SHARPENING.
GUIDE BAR
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‡
Saw cuts to one side or at an angle.
‡
Saw has to be forced through the cut.
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Check the condition of guide bar each time chain is
sharpened. A worn guide bar will damage the chain
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After each use, push the ON/STOP switch down until
the engine stops, then clean all sawdust from the
guide bar and sprocket hole.
To maintain guide bar:
1. Loosen and remove bar nuts and clutch cover.
Remove bar and chain from saw.
2.
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3. Burring of guide bar rails is a normal process of rail
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4.
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Replace guide bar when the groove is worn, the guide
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