Maintenance Instructions - Nakayama PRO EM4020 Manual

EN
CAUTION: Do not rapidly switch off and on.
Adjusting the cutting height
Make sure your machine is switched off and the blade has come to a complete stillness before adjusting the cutting height.
ATTENTION: The blades continue to rotate for a few seconds after the machine is switched off, a rotating blade can cause injury.
Your lawnmower is equipped with a central height adjustment system, offering 11 height settings: 25mm, 30mm, 35mm, 40mm, 45mm, 50mm, 55mm,
60mm, 68mm, 76mm and 85mm.
Select the cutting height by locking the lever in the desired position (move lever outward, slide to correct position, move inward to lock it again) (Fig 2-10).
From rear to front, the adjustable height is from 25mm to 85mm.
Remark : For the first cut of the season,a high cutting position should be selected.
Adjusting the handle angle (Fig.15)
You can easily adapt the height of the handle.
Release the clamping levers (15) at both sides of the lower handle part, select the desired height position of the handle by moving it upwards (or down-
wards), then re-lock the clamping levers.
This enables you to adapt the handle upright height from 900mm to 1050mm in 3 different positions.
Mowing / Cutting the grass (Fig.16)
Select a cutting height to suit the actual height of the grass. If necessary, mow the same section several times so that no more than 4cm is removed at a go.
Place the lawnmower on the edge of the lawn, close to the power supply. Work away from that point.
Alter the position of the cable at each turn, move it to the already cut side.
When mowing,do not make the motor labour to hard. Otherwise the rotating speed drops to much, (you will hear that the motor sound changes).
When this occurs stop mowing and adapt the mowing height to a higher position to avoid damage to your mower.
NOTE: The motor is protected by a safety overload switch
Emptying the grass box
To prevent the ejector opening / blade becoming clogged and unnecessary overloading of the motor , empty the grass box once it is full (Fitting / removing :
see above described).
Hours of operation
Observe your national and regional regulations for the protection against noise which specify hours during which a lawn mower may be operated.

Maintenance Instructions

IMPORTANT - Routine and accurate maintenance is essential for maintaining original machine safety and performance levels.
Always stop the motor and unplug from the mains power before doing any repairs or maintenance.
Only use original spare parts: The use of non-original and/or incorrectly fitted parts will jeopardize the safety of the machine, may cause accidents or injuries
for which the Manufacturer is under no circumstance liable or responsible.
1. Wear strong protective gloves before cleaning, maintaining or making adjustments to the machine.
2. You must remove grass and mud from the chassis to prevent it from drying. This will cause problems the next time the lawn mower is used.
3. Paint on internal chassis parts may start to flake over time due to abrasive action of cut grass. If this happens, you should touch-up with rust-proof paint to
prevent rusting that could corrode the metal. You can also use alight oil or silicone spray to prevent rust.
4. Lubricate the wheel bearings with a suitable lubricant.
CAUTION - DO NOT use a hose pipe or pressure washer to clean the motor. Water will damage the motor.
Blade Maintenance
Check the blade, in order to obtain a good cut, the blade should always be sharp and well balanced. At regular intervals, check the tightness of all nuts, bolts
and screws.
If the blade hits an obstacle check for damage and if the machine vibrates badly stop the lawnmower and take it to a service dealer.
It is best if all interventions on the blade are done at a specialised centre that has the special tools and equipment.
Only original blades must be used on this machine. Given product evolution, the blades may be replaced in time with others having similar interchangeable
and operating safety features.
• You MUST always wear gloves to protect your hands from being cut when working with the blade.
• The blade is made of pressed steel, in order to obtain a precise cut, sharpen the blade frequently, typically around every 28 hours of work.
• Following blade sharpening you must make sure that the blade is always well balanced.
• To remove the blade, unscrew the bolt, check the blade carrier and all components, replace if they are worn or damaged.
• Using a silicone spray grease, lightly coat the lawn mower blade to prevent possible rusting during storage.
Storage
Always unplug the machine from the mains for storage.
To save space during storage, fold down the upper bar.
Store the machine in a dry condition and out of reach of children and unauthorized persons
Repairs
Repair work may only be carried out by Service Centres and authorized specialist work- shops.
To prevent loss of balance, cutting tools and fastening bolts must be exchanged together.
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