Flowserve ATEX E - Manual (Page 6)

ATEX- E/F/D/N - 11-09
Page 6 of 20 flowserve.com
2.9 Maintenance to avoid the hazard
CORRECT MAINTENANCE IS REQUIRED TO
AVOID POTENTIAL HAZARDS WHICH GIVE A
RISK OF EXPLOSION
The responsibility for compliance with maintenance
instructions is with the plant operator.
To avoid potential explosion hazards during
maintenance, the tools, cleaning and painting
materials used must not give rise to sparking or
adversely affect the ambient conditions. Where there
is a risk from such tools or materials, maintenance
must be conducted in a safe area.
It is recommended that a maintenance plan and
schedule is adopted, in line with the User Instructions
provided, to include the following:
a) Any auxiliary systems installed must be monitored,
if necessary, to ensure they function correctly.
b) Gland packings must be adjusted correctly to give
visible leakage and concentric alignment of the
gland follower to prevent excessive temperature of
the packing or follower.
c) Check for any leaks from gaskets and seals. The
correct functioning of the shaft seal must be
checked regularly.
d) Check bearing lubricant level, and if the hours run
show a lubricant change is required.
e) Check that the duty condition is in the safe
operating range for the pump.
f) Check vibration, noise level and surface
temperature at the bearings to confirm satisfactory
operation.
g) Check dirt and dust is removed from areas around
close clearances, bearing housings and motors.
h) Check coupling alignment and re-align if
necessary.