Hinges - Stainless Steel“Loosening of hinges is usually caused by poor alignment or by incorrect choice of screws. Loose screws should be tightened, and if possible the problem should be eliminated by re-aligning the hinges or by replacing the screws with a more suitable type.
Hinges are usually supplied dry by manufacturers because there are objections to oily hinges by fitters who find it difficult to avoid transferring oily marks to doors and windows. In the great majority of cases oiling immediately after installation and from time to time during service significantly reduces wear. The exceptions are special situations, such as very dusty locations in which a mixture of oil and grit can act as a grinding paste which accelerates wear, or public toilet rooms which may be regularly hosed down or washed with detergent solutions which remove the oil. For such locations specialist dry film lubricants may be used. Whilst squeaking of hinges is a sign of lack of lubrication, if it occurs frequently misalignment should be suspected.” Extract from BS 7532 - 1990
MINOVA external door sets are usually fitted with stainless steel hinges equipped with pre-lubricated low maintenance bearings. This note applies to all types of stainless hinges within our usual supply.
Brush any accumulated dirt away from the butt of the hinge using lint free cloth and check hinge fixing screws for tightness using a screwdriver. Lubricate with a little 3-in-1 or similar light machine oil. Open doors every three months, even if maintenance is delayed. This will help ensure that the door will operate correctly if used for emergency escape.
Overhead Door Closers Inspect each closer for oil leakage. Repair of door closers is a specialist task and should be referred to Style metal for the first year and to specialist personnel or the manufacturer thereafter. The door should close without undue slamming, but firmly enough to engage latches where fitted. Adjust closing force (final 130 of swing) as necessary to achieve this if the closer has the facility. Check the tightness of all fixings using an appropriate screwdriver. Grease the lever arm pivots if necessary using a proprietary product such as Castrol grease.
Locks and Latches
Inspect all locks and latches for proper operation. If necessary, adjust the strike plates to ensure the smooth closing of the door and correct action of the latch bolt. Lubrication of the latch bolt, using light machine oil, sparingly applied will help ensure this. After establishing the reason for the incorrect position, correct any misalignment of latch bolts and the strike plate by filing if necessary, treating any exposed edges with a rust inhibitor. If in doubt, refer to the manufacturer, as repair of locks generally requires specialist attention.
Oval and Euro Profile Cylinders
Cylinders must NOT be lubricated using a spray lubricant like WD40. Such fluids can attract dust that may hinder smooth operation. Maintain cylinders with a periodic application of powdered graphite into the key way and around the turn. This is available from most quality locksmiths. Repair of locks is a specialist task, and should be referred to MINOVA during the first year and to a locksmith thereafter.
Check all lever handle fixings for tightness. Loose handle furniture can cause interference with the operation of the lock and, at the same time, damage the bearing surface of the furniture. Rose covers must be removed with great care to avoid distortion of the rose cap.
Pull handles should be inspected to ensure that the fixings are positive with grub screws, where used, firmly in position. All looseness of the handle will damage the door face and cause the handle to become unstable and fail in service.
Emergency Exit Devices
It is essential to check that emergency exit devices operate correctly. These are usually fitted to final exit external doors. In many instances it is the door that needs adjustment to ensure the correct function of the device. Check functioning of unit as part of periodic fire safety test procedures. At quarterly intervals, lubricate all pivot points and shoots where guides retain them. Check all fixing screws are tight and shoots engage properly into keep plates etc.
Lever action and knob slide flush bolts should be checked for smooth operation as they are often subject to abuse. Damage may be caused to the item itself, to its fixings or to the door leaf. Any damage sustained should be rectified immediately to avoid further problems, and to ensure compliance with any fire prevention requirements when fitted to fire doors. Due to exposure of the lower bolt to higher levels of dust and debris, regular cleaning and lubrication will be required. The floor socket must be kept clear of accumulated dirt and debris at all times to prevent damage to the bolt mechanism.
These should be checked to ensure that they are correctly fixed and do not interfere with the correct operation of other ironmongery or the door leaf, frame or adjacent structure.