Maintenance Schedule - Ryobi APR04 Manuel D'utilisation

WARNING
Never climb into a tree to limb or prune. Do not stand
on ladders, platforms, a log or in any position which can
cause you to lose your balance or control of the unit.
MAINTENANCE
■ Never operate a unit that is damaged, improperly
adjusted, or is not completely and securely assembled.
Be sure that the saw chain stops moving when the
trigger is released. If the saw chain still moves at idling
speed, contact a Ryobi service dealer for adjustment
and discontinue use until the repair is made.
■ Always stop the engine and remove the spark plug
wire or disconnect from power supply before making
any adjustments or repairs.
■ Inspect unit before each use for loose fasteners, fuel
leaks and damaged parts. Replace any parts that are
cracked, chipped, or damaged in any way. Failure to
do so can cause serious injury.
■ Make sure all handles are properly and securely
attached.
■ Never modify the unit in any way. Do not use for any
purpose except that for which it is intended.
■ Keep all safety devices in place when using this
machine. Failure to do so can cause serious injury.

MAINTENANCE SCHEDULE

Chain tension
Chain sharpness
For damaged parts
For loose fasteners
For loose parts
Bar
WARNING
Use only the manufacturer's replacement parts. Failure
to do so may cause poor performance, possible injury
and may void your warranty.
■ Before storing the unit, allow the engine to cool. Always
place the sheath on the saw bar when transporting or
storing your pole pruner. The sheath is a snug fit and
must be attached very carefully due to the sharp teeth
on the saw chain. This is best done by grasping the
sheath at one end, in the center portion of the sheath,
English(Original instructions)
Before each use
Before each use
Before each use
Before each use
Before each use
Before each use
and carefully sliding it over the chain. Use caution to
avoid the sharp teeth of the chain. See Figure 11.
REPLACING THE BAR AND CHAIN
To avoid possible serious injury, stop engine before
replacing the bar, chain, or performing any maintenance
operation.
See Figures 12 to 17.
1. Remove the bar nut and drivecase cover, using the
combination wrench provided.
2. The bar contains a bar stud slot that fi ts over the bar
stud. The bar also contains a chain tensioning pin hole
which fi ts over the chain tensioning pin.
3. Place the bar onto the bar stud so that the chain
tensioning pin fi ts into the chain tensioning pin hole.
4. Fit the chain over the sprocket and into the bar groove.
The cutters on the top of the bar should face toward
the bar tip, in the direction of the chain rotation.
5. Replace the side case cover and install the bar nut.
Tighten the bar nut fi nger tight only, the bar must be
free to move for tension adjustment.
6. Remove all slack from chain by turning the chain
tensioning screw (29) clockwise, assuring that the
chain seats into the bar groove during tensioning. See
Figure 16.
7. Lift the tip of the bar up to check for sag. Release the tip
of the bar, and turn the chain tensioning screw 1/2 turn
clockwise. Repeat this process until sag does not exist.
8. Hold the tip of the bar up and tighten the bar nut
securely. See Figure 17.
9. Chain is correctly tensioned when there is no slack on
the underside of the bar, the chain is snug, but it can
be turned by hand without binding.
Note: If chain is too tight, it will not rotate. Loosen
the bar nut slightly and turn adjusting screw 1/4
turn counter- clockwise. Lift the tip of the bar up and
retighten bar nut.
Check the chain tension frequently when operating the
unit. Never touch or adjust the chain while the engine is
running. The chain is very sharp, always wear protective
gloves when performing maintenance to the chain.
18
WARNING
WARNING