Maintenance Of The Blade; Sharpening And Balancing The Blade (Illustration Q ); Replacing The Blade; Servicing The Front Wheels - Sabo 53-PRO M VARIO Manual Del Operador

Only the marked points on the transport vehicle may be used to secure the
equipment.
– Park the means of transport on level ground so that the equipment cannot roll
away before it is secured.
– Transport the unit upright on all 4 wheels to avoid fuel loss, damage to the
equipment and personal injury.
– Secure the equipment with approved load-securing devices (e.g. tie-down straps
with clamping elements) on or inside the vehicle. Tie-down straps are belt bands
made of synthetic fibres. Every tie-down strap is marked with a label. The label
contains important details for application. The information on this label must be
heeded when using the tie-down strap.
– For loaded goods that can roll, we recommend using direct strapping with four
lashing straps. For this purpose, the belts are fastened directly on the fastening
points on the equipment (see illustration N4 ) and in the tie-down strapping points
on the loading surface and slightly pre-tensioned.
NOTE
Do not tighten the belts too firmly. Fixing the equipment too firmly can cause
damage.

Maintenance of the blade

A sharp blade guarantees optimum cutting performance. Before you start mowing,
always check the condition and firm attachment of the cutting blade. The blade
attachment screw must always be tightened by an authorised workshop. If the blade
screw is too tight or too loose, the blade coupling and cutter bar can become damaged
or loose which can lead to serious injuries. A worn or damaged blade must always be
replaced.

Sharpening and balancing the blade (Illustration Q )

WARNING
The sharpening and balancing of the blade should be carried out only by an
authorized specialist workshop. An improperly sharpened or unbalanced blade
can cause severe vibrations, and damage the lawnmower.
The cutting edges of the cutting blade may be grinded only until the respective value
(see illustration Q ) or the marking (1) on the cutting blade (ring) has been reached.
Attention! Observe the grinding angle of 30°.
Your professional workshop can check this value - (grinding limit) for you!
WARNING
A blade by which the wear limit (marking) has been exceeded can break off and
spin away; this can cause severe injuries.

Replacing the blade

WARNING
The cutting blade bar must always be replaced by an authorised workshop. A
wrongly assembled cutting blade coupling or a blade screw that is tightened too
tightly or too loosely can allow the cutting blade bar to become loose and cause
severe injuries.
– Only use genuine cutter bars for replacement. Non-equivalent spare parts can
damage the machine and are a safety hazard.
– Replacement cutting tool must be marked permanently with the name and/or
company logo of the manufacturer or supplier and the part number.

Servicing the front wheels

The wheels are equipped with maintenance-free bearings. Maintenance is not required.

Servicing the rear wheel drive (Illustration R )

Lubricate the wheel bearings every 50 operating hours.
– Pull the drive wheels off after loosening the nuts and removing the dust cap from
the wheel axle.
– Remove the wheel cover, pay attention to the thrust washer.
– Remove any soiling from the wheel cover, the free-wheeling pinion on the gear
shaft and the gear rim on the inside of the wheel.
NOTE
Do not remove the free wheel pinion from the gear shaft!
– Lubricate the wheel axle using the roller bearing grease "KAJO-Longlife grease
LZR 2". Do not lubricate the free-wheeling pinion and gear rim in the wheel!
– Set the wheel cover in place and push the start-up disc onto the wheel axle. When
putting the drive wheel in place make sure the pinion and gear rim interlock, turn
the wheel on the axle slightly to achieve this if necessary.
– Set the dust cap in place, fix using the hexagon nut and tighten to such an extent
that the wheels can just about turn easily but without play.

Servicing the drive

– It is absolutely essential that the Bowden cable runs easily for switching on and off,
so that the control drive works perfectly.

Changing the drive V-belt

The drive V-belt must be replaced by a specialist workshop.

17 SERVICING THE ENGINE

WARNING
Avoid injury! Engine exhaust fumes contain carbon monoxide and can cause
serious illness or death.
Do not run an engine in an enclosed area, such as a garage, even with doors and
windows open.
Move the machine to an outside area before starting the engine.
IMPORTANT
During cleaning and maintenance work, close the fuel tap A (SA322020), tilt the
mower forwards O (spark plug facing upwards). If it should become necessary
to place the mower on its side, then place it on the exhaust side, never on the
carburettor side, as otherwise start-up problems could occur. Secure the mower
in its raised position!
ATTENTION
When tilting or placing the mower on its side, ensure that no oil or fuel comes out
of the machine. Fire hazard!
The regular implementation of the prescribed maintenance and care work are the
prerequisite for a permanent and fault-free functionality of the motor and also the basic
requirement for any guarantee claims.
The motor should be kept clean, particularly on the outside, and the silencer and
cylinder area must always be kept free from foreign bodies (e.g. grass residue). The
exhaust and motor reach very high temperatures when in use. Flammable foreign
bodies such as foliage, grass etc. may catch fire.
Perfect cooling can also only ensured when cylinder ribs are always clean.
IMPORTANT
Never use a pressure cleaner or ordinary water jet to clean the motor. Damages
or expensive repairs can be the consequence of such action.

Oil change

NOTE
For environmental reasons, we recommend that the oil change is performed by
an authorised workshop.
SA322020
The first oil change in a new engine is required after approx. 20 operating hours. Later,
it should be done every 50 operating hours or at least once per mowing season.
– Before the engine or the equipment is tilted to drain oil, empty the petrol tank and
let the engine to run until it stops due to lack of fuel.
– Stop the engine and remove the spark plug connector.
– Renew the oil so long as the engine is warm.
– To replace the oil, remove the dipstick from the oil filler neck and set the mower on
its side so that the used oil can drain into a container.
Do not drain used oil into the sewage system or soil; dispose of it according
to the local regulations.
– Position the mower straight and fill brand-name oil into the spout (for quantity and
quality, see technical data). Insert the dipstick but do not screw it tight, check the
oil level (see chapter Filling oil, illustration Y1 )! If the oil level is correct, insert the
dipstick again and tighten it.
SA322120
The first oil change in a new engine is required after approx. 5 operating hours. Later, it
should be done every 50 operating hours or at least once per mowing season.
– Before the engine or the equipment is tilted to drain oil, empty the petrol tank and
let the engine to run until it stops due to lack of fuel.
– Stop the engine and remove the spark plug connector.
– Renew the oil as long as the engine is warm.
– To replace the oil, remove the dipstick from the oil filler neck and set the mower on
its side so that the used oil can drain into a container.
Do not drain used oil into the sewage system or soil; dispose of it according
to the local regulations.
– Position the mower straight and fill brand-name oil into the spout (for quantity and
quality, see technical data). Screw the dipstick in and check the oil level (see the
chapter Filling oil, illustration Y1 )! If the oil level is correct, insert the dipstick and
tighten it.
10
Safety instruction!
See table for explanation of symbols
page 2