U.S. Boiler Company MegaSteam MST288, Installation, Operating And Service Instructions

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Figure 5A: Partial Front View - Burner Swing Door Mounted to Boiler - Fully Closed and Secured
D. JACKET FRONT PANEL INSTALLATION.
In order to install front jacket panel Burner Swing
Door and door mounting bracket need to be
removed. As shipped, the door would open to the
left side.
1. To open/remove Burner Swing Door (mounted
on Cast Iron Section/Burner Swing Door/Smoke
Box Assembly) and door mounting bracket for
front jacket panel installation:
a. Loosen but not remove door left side
latching hardware (3/8”-16 x 1-3/4” tap
bolt).
b. Loosen and remove door right side latching
hardware (3/8”-16 x 1-3/4” tap bolt and
5/16” washer) and set aside.
c. Remove door left side latching hardware
(3/8”-16 x 1-3/4” tap bolt and 5/16” washer)
and set aside.
d. Lift the door off mounting bracket and set
aside.
e. Remove two 5/16”-18 – ¾” hex head cap
screws securing door mounting bracket to
front section and set aside.
f. Remove door mounting bracket and set
aside.
g. Note/mark cap screw bosses on front
section left side; locate/mark similar two
bosses directly opposite on front section
right side. These four front section bosses
are front jacket panel and door mounting
bracket attachment points.
See also Figure 7 “Purpose of Tappings &
Bosses”.
2. Open Jacket Carton and locate jacket front
panel (has factory attached 1” fiberglass
insulation). See also “Repair Parts” Section,
“Jacket Assembly” illustration for part
identification.
3. Open Part Carton, locate Hardware Bag,
remove two 5/16”-18 x ½” Phillips pan head
machine screws.
4. Place front jacket panel over front section
attachment bosses and align jacket holes with
front section boss holes.
5. Firstly, install two 5/16”-18 x ½” Phillips pan
head machine screws hand tight to secure
front jacket panel right side to casting
6. Secondly, insert 5/16”-18 – ¾” hex head cap
screw thru door mounting bracket upper hole
and upper hole on left side of front jacket panel
simultaneously, and, fasten the bracket and
panel to casting hand tight.
7. Thirdly, insert 5/16”-18 – ¾” hex head cap
screw thru door mounting bracket lower hole
and lower hole on left side of front jacket panel
simultaneously, and, fasten the bracket and
panel to casting hand tight.
8. Finally, tighten both sets of hardware to secure
the bracket and front jacket panel.
9. Inspect fiberglass rope located on the swing
door. The rope must be evenly distributed
around the perimeter of the door groove and
cannot bunch or overhang. Repair or replace,
Section II: Unit-Pak Boiler Assembly (continued)