Maintenance - Scheppach HTH250/240P Original Anleitungen

• If you release the throttle trigger the cutting device
will afterrun for a short time (free wheeling effect).
• Start trimming with the cutting device moving.
• Never touch the cutting device with your hands during
operation.
• Never work
- with stretched arms
- on hardly accessible places
- too far bent forward
• Never work with the hedge trimmer above shoulder
height.
• Never get in contact with the running cutting device
with metallic fences or the ground.
• Stop the engine and pull the spark plug connector:
- when you notice changes in the device's behaviour,
- to remove jammed material,
- to check the cutting device after it had contact with
stones, nails or other hard objects,
- to eliminate faults,
- for work breaks,
- before leaving the hedge trimmer.
• Do not place a hot hedge trimmer in dry grass or onto
inflammable objects.
• Before starting your work make sure that:
- no other persons or animals stay within the working
area,
- you can always step back without any barriers,
- your standing area is free from foreign objects,
brushwood and branches,
- you have always a secure standing position.
If persons who have blood circulation problems are too
often exposed to vibrations damages to the nervous
system or to blood vessels may occur.
You can reduce vibrations
- by thick and warm working gloves,
- shorter working time (have longer breaks).
See a doctor if your fingers swell, you don't feel well or
your fingers become numb.
Working with the hedge trimmer
Hold the hedge trimmer with both hands on a safe
distance from the body.
• The maximal diameter to cut depends on the wood's
type, age, moisture and hardness.
• Therefore cut very thick branches using branch shears
to your desired length before trimming the hedge.
• Due to its double sided knives the hedge trimmer can
be guided forward and backward or by oscillating
movements from one to another side.
• At first cut the sides of the hedge and then the upper
edge.
• Cut the hedge from the bottom up.
• Cut the hedge in trapezium shape.
• Stretch a guide over the complete length of the hedge
when you want to shorten the upper edge of the
hedge evenly.
• Trim in several passes if you have to cut down a large
portion of the hedge.
Best time for hedge trimming:
• Leaved hedge: June and October
• Conifer hedge: April and August
• Quickly growing hedge: from May and then every 6
weeks
Pay attention to breeding birds in the hedge. If so, put
off hedge trimming or leave this area out.
At any case pay attention to all safety instructions.

10. Maintenance

Before each maintenance and cleaning work
- Stop the engine.
- Wait until the cutting device does not longer move.
- Stop the engine and pull off the spark plug connector
(with the exception of idle speed adjustment).
Do not carry out maintenance work close to open
flames. Risk of fire.
Maintenance and repair work other than those de-
scribed in this chapter is only allowed to be carried out
by service staff.
For maintaining and cleaning, removed security
devices must unconditionally be mounted properly
and proved again.
Use only original parts. Other parts can result in unex-
pected damages and injuries.
In order to aviod possible injuries wear gloves.
To guarantee a long and reliable usage of the hedge
trimmer carry out the following maintainance works
regularly.
Check the hedge trimmer for obvious defects such
as
- loose fastening elements
- worn or damaged components
- deformed, broken or damaged cutting device
- leaks from the fuel tank cap or fuel lines
Check the hedge trimmer after each application for
- wear and tear, in particular sliding play of the cutting
device
- correct assembly and faultless covers and protective
devices.
Necessary repair or maintainance operations have to
be carried out before the usage of the hedge trimmer.
Adjusting the cutting device
Readjust the sliding play if cut material is clamped be-
tween the blades or the play has increased due to nor-
mal wearing of the cutting device after a longer period
of use.
To obtain good cutting results the free motion between
the blades and the sword must be correctly adjusted.
For this proceed as follows:
1. Loosen the nuts (A) on the top surface of the cut-
ting device.
2. Slightly tighten the screws (B) on the underside (if
required loosen them previously).
3. Turn the screw back anticlockwisely by a quarter
up to a half turn.
4. Use a screwdriver to hold the screw and firmly
tighten the nuts.
The sliding play is correctly adjusted if the washer under
the screw head can just be freely moved back and forth
by hand.
GB 25