Check The Safety System; Replacing The Light Bulbs; Main Fuse; Checking The Tyre Pressure - Husqvarna R 422Ts AWD Operator's Manual

Check the safety system

The machine is equipped with a safety system that prevents
starting or driving under the following conditions.
The engine must only be possible to start when the following
conditions are met:
• The cutting unit is in raised position.
• The parking brake is applied.
The engine must stop under any of the following conditions:
• The cutting deck is lowered and the driver rises from the
seat.
• The cutting deck is in its raised position, the parking brake
is not applied and the driver rises from the seat.
Check daily to ensure that the safety system works by
attempting to start the engine when one of the conditions
above is not met. Change the conditions and try again.

Replacing the light bulbs

For information about the bulb type, see Technical Data.
1 Unscrew the two screws holding the cover on the power
servo housing.
2 Lift up the cover and turn it around the steering shaft.
3 Unscrew the two screws holding the lamp insert.
4 Lift out the lamp insert.
5 Disconnect the cables from the bulbs.
6 Lift out the bulbs from the insert.
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Maintenance
7 Insert the new bulbs. Make sure you use your thumb to
support the front.
8 Refit the cables, lamp insert and the cover on the power
servo housing.

Main fuse

The main fuse is placed in a detachable holder under the
battery case's cover, in front of the battery. Type: Flat pin, 15
A.
The fuse for the power outlet is placed under the ignition
switch, behind the side plate on the control panel. Type: Flat
pin, 7,5 A.
Do not use any other type of fuse when replacing.
A blown fuse is indicated by a burnt connector. Pull the fuse
from the holder when replacing.
The fuse is there to protect the electrical system. If it blows
again shortly after replacement, it is due to a short circuit,
which must be fixed before the machine can be put into
operation again.

Checking the tyre pressure

The tyre pressure should be 60 kPa (0.6 bar / 9 PSI) all round.
To improve driving the pressure on the rear tyres can be
reduced to 40 kPa (0.4 bar/5.6 PSI). The maximum tyre
pressure is 100 kPa (1,0 bar/14 PSI).
IMPORTANT! Different tyre pressures on the front tyres will
result in the blades cutting the grass at different heights.