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General
Rada products are precision-engineered and should give continued superior and
safe performance, provided:
1.
They are installed, commissioned, operated and maintained in accordance with
our recommendations.
2.
Periodic attention is given as necessary to maintain the product in good functional
order. Guidelines for frequency are given below.
Rada Service Engineers/Agents will call by prior arrangement, if required. Service
Contracts may be undertaken, subject to survey - details upon request.
Preventative/Precautionary Maintenance
The frequency and extent of attention required will vary according to prevailing site
and operational conditions.
Visual: check internal component condition. Inspect for debris, scale deposition,
deformation, damage, corrosion, etc. Maintain or renew as necessary. Lubricate
applicable components using silicone-only based lubricant.
Lubricants
Important: Use silicone-only based lubricants on this product. Do not use oil-
based or other lubricant types as these may cause rapid deterioration of seals.
Maintenance Procedures
1.
Locate and isolate water supply.
2.
Break the join between the actuator assembly and the timed flow valve assembly
by unscrewing the union nut.
3.
Loosen off the compression fittings on the valve and swivel the valve round to
enable servicing from the front. If necessary, the actuator assembly can be
withdrawn slightly through the wall by loosening the first locknut and the backnut.
4.
Remove the valve mounting adaptor and unscrew the headnut to the valve.
5.
Service the valve in accordance with the instructions given in the Installation
and Maintenance Guide for TF503/503B Timed Flow Controls (Publication
number P1186).
MAINTENANCE
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