General Recommendations; Maintenance Schedule; Maintenance Procedures - McCulloch CS 50S Operator's Manual

IMPORTANT POINTS
the saw. Maintain secure footing and balance.
Watch out for springpoles. Springpoles are small
size limbs which can catch the saw chain and
whip toward you or pull you off balance. Use
extreme caution when cutting small size limbs or
slender material.
Be alert for springback. Watch out for branches
that are bent or under pressure. Avoid being
struck by the branch or the saw when the tension
Keep a clear work area. Frequently clear
branches out of the way to avoid tripping over
them.
LIMBING
Always limb a tree after it is cut down. Only then can
limbing be done safely and properly.
Leave the larger limbs underneath the felled tree to
support the tree as you work.
Start at the base of the felled tree and work toward the
top, cutting branches and limbs. Remove small limbs
with one cut.
Keep the tree between you and the chain. Cut from
the side of the tree opposite the branch you are
cutting.
a 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
Remove larger, supporting branches with the cutting
techniques described in BUCKING WITHOUT A
SUPPORT.
Always use an overcut to cut small and freely hanging
limbs. Undercutting could cause limbs to fall and pinch
the saw.
PRUNING
a WARNING! Limit pruning to limbs shoulder
height or below. Do not cut if branches
are higher than your shoulder. Get a
professional to do the job.
1.
bottom of the limb.
2. Make the second cut all the way through the limb.
3. Make the third overcut leaving a 2.5 to 5
tree.
MAINTENANCE
Check for loose parts
Every 5 hours*
Inspect and clean chain brake
Inspect and clean guide bar
Every 25 hours*
Yearly
Replace spark plug
* 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.
ON/STOP Switch - Ensure ON/STOP switch
functions properly by moving the switch to the STOP
position. 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.
13