Gardena Art. 4005, Art. 4010 manual Maintenance, service, storage

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After having aerated heavily	The aerator cylinder use is	The table below provides infor-
moss-covered areas, it is re-	optional depending on the needs	mation on the use of the aerator
commended to resow the lawn.	and condition of the lawn.	cylinder.

This will help the affected lawn to recover quickly.

Use of the aerator cylinder	Cutting height setting	Function of the aerator cylinder
Deep aeration of the soil	30 - 35 mm	The aerator springs penetrate up to 7 mm
		deep depending on the type of soil.
Aeration of the soil surface	35 - 40 mm	The aerator springs remove moss,
		matting, and weeds rooting near the
		surface.
Combing the lawn	40 - 45 mm	The aerator springs remove residues from
		the lawn.
Gathering grass clippings etc.	40 - 55 mm	The aerator springs remove even wet or
		trodden-in grass clippings etc. from the
		lawn.

Follow the manufacturer’s instructions when replacing the blades, blade bar and for aerator cylinder.

7.2How to replace the blades, blade bar and the aerator cylinder (Fig. K - M)

Please use only the Original GARDENA Spare Blades:

Triangular blades
(HB 40)	Art. No. 4098
Rectangular Blades
(MulchCut HB 40)	Art. No. 4099
Aerator cylinder	Art. No. 4097

You can order these spare parts from your GARDENA dealer or directly from the GARDENA customer service.

Never use spare parts or ac- cessories which have not been

4.Reverse the blades (30) or mount new blades (30) and secure tightly (torque 25 Nm). (During installation make sure that the ratchet toothed locking washers (31) are fitted under the nuts (28) and that the nuts (28) are on the top of the blade bar (32).)

Replacing the blade bar (Fig. L)

Damaged blade bars must be replaced to prevent imbalance.

1. Remove the spark plug in
	order to avoid risk of injury
	if the engine accidentally
	is started.
2.	Empty the tank or run
	Athe mower until the
	tank is empty! Make sure the
	tank lid is properly closed.
	Tilt the lawn mower to the

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tank lid is properly closed. Tilt the lawn mower to the tank-located side; keep spark plugs and sound absorber of the motor upwards.

3.Release screws (39) with an appropriate Phillips head screwdriver.

4.Remove the bearing sheet steel (40).

5.Remove aerator cylinder (38) together with end plate (41) of the drive shaft (42) (square) by tilting and pulling out.

6.Place new aerator cylinder (38) onto drive shaft (42) (square); stick on end plate (41) and tighten with the bearing sheet steel (40) in the casing.

7.3 Engine maintenance

Changing oil (Fig.E)

6.4Mowing with the grass catcher (Fig. I)

As soon as there are grass clip- pings left on the lawn during mowing and aerating, the grass catcher should be emptied.

To remove the grass catcher (18) lift the protective cover (27) on your petrol Hattrick lawn mower with one hand. With the other hand hold the grass catcher (18) by the carrying handle (17) and remove the grass catcher (18) upwards.

If the protective cover (27) is re- leased, it automatically shuts and covers the discharge opening.

If grass clippings stick in the dis- charge opening, the mower may

be difficult to start. Pull the petrol Hattrick lawn mower back about 1 m so that the grass clippings drop out easily.

Afterwards, the grass catcher should be emptied.

Note:

To ensure good collection, re- gularly clean the grass catcher inside and outside.

Attaching the grass catcher

Attach the grass catcher Aonly with the engine switched off and the cutting blade at a stand still.

Lift the protective cover (27) with one hand. With the other hand hold the grass catcher (18) by

the carrying handle (17) and in- sert into the the discharge open- ing from above.

Note:

If properly seated the protec- tive cover (27) fits snugly to the grass catcher (18).

Mowing without the grass catcher

The protective cover (27) is mounted in such a way that the petrol Hattrick lawn mower can be used without the grass catcher with the protective cover (27) closed. The clippings are ejected onto the lawn below the protec- tive cover (27).

designed by the manufacturer!

Replacing the blades (Fig. K)

Note:

The blade has two cutting edges. If one edge has become blunt the blade can be re- versed. Broken blades must be replaced immediately as it can cause an imbalance problem.

Do not regrind the blades, it will cause imbalance.

The blades must always be replaced or reversed in pairs.

When replacing the blades always use the new nuts and bolts supplied with the spare blades.

tank-located side; keep spark

plugs and sound absorber of

the motor upwards.

3. Release the hexagon head

bolt (33) with an appropriate

wrench (SW 13) and remove

the blade bar (32) from the

drive shaft.

4. Insert new blade bar and

tightly screw with the following

washers (in the same order):

a) fibre washer (34)

b) strain washer (35)

c) small steel washer (36)

and with the hexagon head bolt (33) (Torque: 40 Nm).

Be sure that strain washer (35) has been installed in the cor- rect position (see fig. L1).

Always change the oil when the engine is hot and the tank is empty and closed.

Carry out the first motor oil change after 5 hours of operation, then every 50 hours of operation or once a year at the end of the mowing season, depending on which comes first.

In order to do this, open oil seal- ing cap (21), tilt the mower so that the old oil can flow into an oil-trough. Dispose of waste oil according to local regulations.

Position the mower on a level surface again and fill it with motor oil (0.6 l SAE 30 or 10 W 30) (see 5.1).

Checking and cleaning

7. Maintenance, service, storage

1. Remove the spark plug in

order to avoid risk of injury

if the engine is accidentally

started.

Replacing the aerator cylinder (Fig. M)

The aerator cylinder is subject to natural wear and tear. If the

the spark plug

Clean a contaminated spark plug with a brass wire brush and rag. Check the electrode gap (setting:

7.1Maintenance Maintenance includes all jobs which keep your petrol Hattrick lawn mower in perfect working order. By regularly checking the unit (firm seating of screw con- nections, cracks, damage) and replacing defective or worn parts you can prevent accidents and failure.

Repairs may only be carried out by GARDENA service centres or dealers authorised by GARDENA.

Attention: Always detach Athe spark plug before working on your petrol Hattrick lawn mower (for checking and maintenance) to prevent risk of injury!

For security reasons, replace the tank lid if damaged.

Never clean your petrol Hattrick lawn mower with running water, in particular with water under high pressure.

Store your petrol Hattrick lawn mower in a dry place where it is protected from frost. The lawn mower should be stored out of the reach of children.

2.	Empty the tank or run
	Athe mower until the
	tank is empty! Make sure the
	tank lid is properly closed.
	Tilt the lawn mower to the
	tank-located side; keep spark
	plugs and sound absorber of
	the motor upwards.
3. Hold the locking nuts (28) at
	the back and unscrew the bolts
	(29), using the TORX ® -wrench
	provided.

springs (37) are worn it will not function correctly.

The aerator cylinder (38) must be replaced.

1.Remove the spark plug in order to avoid risk of injury if the engine is accidentally started.

2.Empty the tank or run Athe mower until the tank is empty! Make sure the

0.75mm gap). Replace a badly worn or damaged plug.

Cleaning the air filter (Fig. N)

Cleaning the air filter is ne- cessary every 3 months or after 25 hours of operation. In ex- treme dusty conditions do so more frequently.

Remove screw (43).

Fully remove air filter by pulling sideways and/or from the front.

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