The hardware fitted to aluminium products do not need ‘calendar’ servicing but they should be maintained on an ‘as necessary’ basis. Items such as door locks, friction hinges, and reversible window gear which have been lubricated in manufacture and/or installation should be treated with the appropriate lubricant when they show signs of stiffening up in use or they have been left unused for a considerable time.
A list of appropriate lubricants is included below:
|Hinge pivots, Handles, Locks||Light Machine Oil|
|Cylinder Locks||Graphite or PTFE based Lubricant|
|Vertical Sliding Window Balances (VSW)||Torso Castrol RustiloDWF Others Multipurpose grease|
When cleaning the products it is a wise precaution to check that all hardware fixing screws are tight, connections between VSW balances and sashes remain correct, safety stops/catches/latches are in place, and that all parts are free from damage.
At the same time, and at least annually, make sure that drainage paths are not blocked by airborne debris or other ‘foreign’ bodies.
Ali Systems Ltd, Unit 2, Barford Industrial Estate, Watton Road, Barford, Norwich, NR9 4BG