INSTALLATION, OPERATION and MAINTENANCE MANUAL | 57
Figure 44: Precaution for removal of plates
During maintenance, secure the follower to the end support to prevent
accidental rolling.
Separate the plate pack carefully to avoid damaging the gaskets or the plates. Remove
the plates by sliding the bottom portion of each plate backwards and then sideways off
the top bar and then removing from the frame (Figure 44).
12.2. Inspection
Check the front and back of every plate for cleanliness and freedom from debris.
Product build-up and scale will reduce the performance of the heat exchanger and
cleaning is required - See Section 12.3.
Check each plate for cracks or holes. Some cracks may not be readily visible and will
require dye penetrant inspection to locate them.
Gaskets must be thoroughly checked for cuts, flattening, cracks, brittleness, breakage,
and correct fit in the gasket groove. The gasket groove in the plate must be free of
distortion or kinks.
The entire gasket and sealing surfaces of the plates must be totally free of any debris
since any foreign material will cause leakage and may damage the gasket. When
installing clip in gaskets, careful inspection is required to be sure there is no debris or
glue from previous gaskets under the installed gasket, which will cause leakage.
To Next Page
Loading...