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Figure 4 Handling split blocks
Part Number 550-142-303/1120
9
EG
/
PEG sEriEs 6
•
EGH sEriEs 5 Gas-firEd boilErs — boilEr manual
Placing the boiler
Block assembly is extremely heavy. Handle with
caution to avoid personal injury.
EGH boilers only —
When an EGH block assembly is taken apart for handling:
1. Put a support under center of block. Support must be
within ½ inch of block bottom.
2. Detach seal replacement kit from the draw rod. Remove
short center draw rods.
3. Tip half blocks on end as shown in Figure 4. Save elas-
tomer sealing ring between sections.
4. Remove the exposed silicone from the socket areas
located in the bottom-front and top-rear corners of the
casting. See Figure 4a. Do not remove the rope seal.
5. After moving half-blocks into desired location,
clean port surfaces with clean, dry rag. Do not use
petroleum-based solvents. Place sealing rings in
recessed ports. Place new silicone in the socket area as
seen in Figure 4b. It is critical to place enough silicone
in this area to reseal the castings.
Do not use petroleum-based cleaning or
sealing compounds in boiler system. Severe
damage to system components can result,
causing substantial property damage.
6. Re-assemble block in reverse order. When drawing sec-
tions together, use 45 ( ± 5 ) ft-lbs torque.
1
Place enough silicone in the socket to
make a seal with the mating surface on the
adjacent casting when assembled.
Prepare the boiler
Figure 4a Corner after exposed silicone has been
removed.
Figure 4b Placing of new silicone in the sockets.
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