Manual Al-ko 546 127130 (page 34 of 76) (English, German, French, Spanish)

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Maintenance and care

8.2 Wheel axles and wheel hubs

Wheel axles and wheel hubs are to be lubricated

occasionally (at least once a year). Remove wheel

cap, release screw and remove wheel. During

disassembly observe the sequence for the

reassembly of the parts.

Maintenance of the rear wheel-self-propelled drive

roller:

• After removing wheel caps and loosening

fastening screws, remove drive wheels.

• Remove grass debris and dirt from all drive

wheel areas.

Attention: Do not remove neutral gear pinions

from the gear shaft; however, check if they turn

slightly counter-clockwise to the drive direction.

• Lightly lubricate the two pinions (free wheel and

plastic pinion) with water-repellent grease which

is compatible with plastic.

• Fill the space inside the drive wheel between

both taper bearings with the same or a

compatible grease.

• Also lubricate the wheel axles with grease.

• When refitting the drive wheel, ensure that both

pinions engage with each other; slightly turn the

wheel on its axle, if required.

8.3 Drive belt

Tensioning the drive belt

Remove the lid from the battery/gearbox chamber

(15) after releasing both screws. Undo the fixing

screw (C) of the tensioning lever. Tension the drive

belt by moving the tensioning lever (in the direction

of the arrow).

Note: Check the belt tension every 20 hours or at

least once per mowing season.

The belt is correctly tensioned of the centre can be

deflected by approx. its own thickness.

Changing the drive belt

• Position the lawn mower on its handle and

discharge deflector (Fig. 7). First pull the spark

plug cap and ensure that the fuel tank is empty.

• First remove the blade and impeller, then the

old drive belt.

• Position the new drive belt from below onto belt

pulley A and insert to the rear into the mower

chassis.

• Reposition the mower on its wheels.

• Position the drive belt onto pulley B on the

gearbox side.

• Tighten V-belt as described above.

• Screw on cap tightly.

• Assemble blower wheel and blade. Observe

sequence of assembly parts and observe the

blade‘s torque. (Fig. 12).

8.4 Oil level check

Attention: The engine oil affects the lawn mower‘s

efficiency and life span. Never operate the engine

without oil or with little oil. Major engine damage

can occur. The optimum viscosity depends on

where the lawn mower is used (air temperature

and altitude) and can be found in the engine

owners manual.

Fig. 8

Fig. 9

Fig. 10

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Al-ko 546 127130 Manual

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