CompAir 5280D.1.IAC Operator's Handbook Manual page 14

5. OPERATION PRECAUTIONS (Cont.)
• If there is any indication that the compressor is
overheating it must be shut-down. (A high air or
gas temperature switch is fitted as standard to
guard against operating with excessive
temperature). Beware of burns from hot oil and
water when working on a unit recently shut-down.
• Do not operate the unit when guards provided for
protection for all rotating and reciprocating parts
have been removed for essential maintenance.
Secure guards following any servicing or repair.
• Local noise regulations must be observed. Ear
defenders are suggested by Noise at Work
Regulations 1989 when the level is greater than
85 dB A at one meter. Be aware high noise levels
can interfere with communication.
6. MAINTENANCE & REPAIR PRECAUTIONS
• Maintenance repair and modifications must be
carried out by competent persons under qualified
supervisor.
• The compressor will have a preserving oil applied
to interior surfaces (Oil lubricated models). Oil
free models will have desiccant bags in valve
covers and distance pieces.
• Handling components such as seals, gaskets and
diaphragms should not present a personnel
hazard. Preservation oils again should not
present a personnel hazard if handled under
normal handling practices.
• Whilst compressors are asbestos free, treat all
damaged gaskets as asbestos - when the
Asbestos at work regulations apply.
• Viton 'O' seals under normal operating conditions
are safe.
• However, should there be a fire within the
compressor or these seals are likely to exceed a
temperature of 300°C the material will
decompose.
• Degraded Viton gives off Hydrogen Fluoride
fumes and if in contact with the skin an acid
formed causes severe burns.
• If Viton seals appear charred or gummy do not
touch with unprotected hands: use neoprene or
PVC gloves.
• Wash the area with lime water and avoid
breathing any fumes. If contamination of the skin
occurs was with lime water and seek medical
advice.
Pre-Maintenance Operation
CompAir UK Ltd.
5280D Compressor Publication 98407.1440
• 1. Isolate the compressor from the main electrical
supply. Lock the isolator in the OFF position and
remove fuses.
• 2. Attach a label " WORK IN PROGRESS - DO
NOT APPLY VOLTAGE".
• 3. Close the isolating valve between the
compression unit and user's pipework. Close the
isolating valve in the cooling water inlet pipe.
Attach a label "WORK IN PROGRESS - DO NOT
OPEN".
• 4. Check that all pressurised gas trapped in the
system is released to atmosphere or safely to gas
storage. Check that all pressure gauges register
zero.
• 5. Ensure that the cooling water system has been
drained.
• 6. Check that the drain valve on the delivery
manifold is clear and gas pressure has been
released.
• 7. Check that all interstage drains are open to
ensure any gas trapped between stages has
been released.
• Stand clear of all valve covers when removing the
securing screws.
• When removing valve covers for valve
replacement, ensure a minimum of two threads
are left engaged on the valve cover securing
screws. Lever the valve cover until the 'O' seal is
disengaged from the port in the cylinder head.
Remove the securing screws and take out valve
cover.
• Use only lubricating oils and greases
approved by CompAir UK Ltd to avoid
potential hazards especially the risk of
explosion or fire and the possibility of
decomposition or generation of hazardous
gases.
• Always clean oil spills from the surrounding floor
before and after maintenance work.
Page 11
1440.doc