IVT GHT-25, Owner'S Manual

Page: 11 / 64

11
EN
Instruction manual
UNPACKING
When unpacking, check to make sure that all
components are included. Refer to the drawings on this
manual. If any parts are missing or broken, please call
an IVT assistance center.
PRE-OPERATION CHECKS
WARNING! Prior to any mounting,
adjusting, maintenance procedures
the machine must be turned off. Also
pull the spark plug cap out.
CAUTION! Protective gloves must be
worn when handling the cutting blade
(18).
Checking the handle guard (2) [F1]
The handle guard (2) prevents hands from coming into
contact with the cutting blade (18), for example, if the
operator loses grip on the front handle (1).
CAUTION! Check that the handle
guard (2) is fitted correctly and
undamaged.
Checking the cutting blade (18) and the blade guard
(19) [F2]
∙ Check the condition of the cutting blade (18) and
the blade guard (19) regularly.
∙ Replace the cutting blade (18) and the blade guard
(19) if they are bent or damaged.
If needed, sharpen each cutting edge and make sure
the bottom corner is rounded. If damaged or cracked,
replace it.
To ensure good results it is important that the contact
pressure between the cutting blades (18) is correct.
The contact pressure is adjusted by turning the screws
on the underside of the bar clockwise.
When the cutting blades (18) are correctly adjusted the
play between the cutting blades (18) should be 0.2-0.4
mm, measured at the screws.
ATTENTION! Do not cool cutting blade (18) with water,
in case of using grinder, because it may cause cracks
on the cutting blade (18).
PRIOR TO OPERATION
WARNING! Perform the following procedures, with
the engine cooled down.
Fuel recommendations
The machine is equipped with a two-stroke engine and
must always been operated using a mixture of petrol
and two-stroke oil. It is important to accurately measure
the amount of oil to be mixed to ensure that the correct
mixture is obtained.
∙ Pour the correct quantities of regular gasoline
(leaded or unleaded, alcohol free) and 2-stroke oil into a
mixing bottle (a clean container intended for fuel), then
shake the container well.
RECOMMENDED MIXING RATIO
GASOLINE : OIL > 40 : 1
ATTENTION! Never use oil intended for four-stroke
engines, nor oil intended for water cooled 2-cycle
engines.
Refueling
1. Always shut off the engine and let it cool for a few
minutes, before refueling.
2. Rest the machine on the ground with the fuel tank
plug (5) facing up.
3. Open the fuel tank plug (5) slowly so that any
excess pressure is released gently.
4. Clean the area around the fuel tank plug (5):
contamination in the fuel tank (4) can cause operating
problems.
5. Ensure that the fuel is well mixed by shaking the
mixing container before filling the fuel tank (4).
6. Fill the fuel tank (4) with correct gasoline-oil
mixture. Do not overfill.
7. Tighten the fuel tank plug (5) securely.
ATTENTION! If the machine is not used for fairly long
time (more than 4 weeks), the fuel tank (4) should be
emptied and cleaned.
CAUTION! Wipe up all spills and
always move the machine away from
the refueling area (min. 3 meters)
before starting.
STARTING / STOPPING THE ENGINE
[F3]
Starting the engine
1. Set the machine down on a hard, level surface.
2. Move the on/off switch (6) to the “start” “I” position.