to all the nuts on the wheel in a criss-cross pattern . Repeat the process for each wheel .
If any nuts required tightening , take the van to a tyre shop or mechanic to ensure the wheel nuts are tightened to the correct torque setting .
HOW OFTEN SHOULD I DO IT ?
Many people recommend you do this before each journey ; however , that may not be practical . At a minimum , they should be checked no less than once every 5000km .
2 . SERVICE THE WATER PRESSURE VALVE
TOOLS REQUIRED
• Two large shifting spanners or vice grips ;
• Long-nosed pliers ;
• A tube of plumber ’ s grease or a jar of Vaseline ; and
• A clean rag and white vinegar .
WHAT TO DO
Disconnect the van from mains water , turn off any water pumps and turn on a tap to relieve any pressure remaining in the system .
If your water pressure has dropped , this will be the likely culprit .
These mini grease guns are ideal for storing in your tow vehicle .
Remove the brass pressurereducing valve from the van . Split the valve apart by unscrewing the two halves . This will be tight if you ’ ve never done it before and will require some strength .
Once apart , remove the steel spring and piston using the pliers . Some slight force may be required to remove the piston .
Clean the internal barrel of the valve and the piston with the rag soaked in vinegar . Now smear a generous amount of the grease or Vaseline inside the valve and over the piston seals . Do not stretch or compress the spring .
Reassemble the valve taking care not to dislodge the seals from the piston . Put the valve back into the van and connect it to mains water and test all water outlets . Water pressure should now be restored .
HOW OFTEN SHOULD I DO IT ?
After the van has been stored for a long period or when the water pressure drops to a level that it is unsatisfactory .
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