Maintenance
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 INFORMATION
Different tyre pressures on the front tyres will result in the blades cutting the grass at different heights.
Checking the engine’s cooling air intake
Clean the air intake grille in the engine cover behind the driver’s seat.
Open the engine cover.
Check that the cooling intake is free from leaves, grass and dirt.
Check the air duct, located on the inside of the engine cover, ensure it is clean and does not rub against the cooling air intake.
A blocked cooling intake will interfere with the cooling of the engine, which can damage the engine.
WARNING! The cooling air intake rotates
!when the engine is running. Mind your fingers.
Replacing the hydraulic pump’s drive belt R 422 Ts AWD
1Remove the transmission cover.
2Unhook the spring on the belt tensioner
3 Remove the belt guide for the centre belt.
4Pull off the centre belt from the engine's pulley and pull out the rear section.
5 Remove the cooling fan, it is held in place by a nut.
6Pull the belt off of the pump's pulley.
7Pull the belt off of the engine's pulley and move it under the engine belt pulleys.
8Pull out the belt through the opening under the pivot bearing and past the belt tensioner's disc.
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