Maintenance - Cab filtration

Intercooler

The intercooler cools the air between the turbocharger and the air inlet of the engine. This is to increase the density of the air so the engine has more oxygen for combustion. It is therefore important that both the air inlet grill on the side of the engine cover and the intercooler radiator are kept clear of dust and debris to maximise the airflow from the electric fan. The fine mesh grill on the outside of cooler assy can be removed for cleaning by removing two self tapping screws.

The intercooler radiator should be blown out from the rear or removed completely for cleaning if serious contamination is evident. Take care not to get any dust or dirt into the open ends of the hoses, air intake or turbocharger if it is removed.

Cab Filtration Unit

The Stealth cab is fitted with an integrated air conditioning and carbon filtration system. The air inlet filter will filter out dust and small particles and the carbon element of the filter will filter out chemical particles and vapours. The carbon in the filter will only remain effective for up to a maximum of 6 months, whether the machine is being used or not, as the carbon degenerates when in contact with the air. If the machine is being used continuously it is recommended that the filter be changed every 300 hrs. If the machine is not being used for a long period of time, its life can be extended by removing the filter and storing it in a plastic bag.

Lifting / lowering the roof
Remove the two safety pins, unlock the 2 roof securing catches and disconnect engine air intake.
Lift the roof and swing the roof prop upwards to locate in its support bracket.
When lowering the roof ensure that the rubber seal around the roof is in good condition and that it seals correctly - Failure to do so will cause unfiltered air to be pulled into the ventilation system. Refasten the overcentre clamps, fit safety pins and re-connect the engine air intake hose.

Filter replacement
Remove the rubber strap from over the top of the carbon filter and remove it from its frame. Place it in a plastic bag and dispose of properly. When fitting the replacement filter ensure that the rubber seal around the filter is located correctly to avoid contaminated air being pulled in past the filter.

Air conditioning

There are no user serviceable parts in the air conditioning system, the only regular maintenance being the servicing of the compressor drive belt - as described earlier in this manual.

It is recommended that the system is serviced annually by a qualified refrigeration engineer.
The refrigerant gas currently being used is a hydrocarbon gas - HR30. NB this gas is highly flammable and for this reason the system must not be interfered with. However It is perfectly safe under normal operating conditions with the system charge being relatively small at only 14 ozs.