31
Defiant
®
1975 Non-Catalytic / Catalytic Woodburning Stove
30005220
adjust the Damper as Needed
The tension on the Defiant’s damper is adjustable to
compensate for compression of the gasket that seals
the damper to the upper fireback. To adjust the damper:
1. Remove the griddle. Loosen the lock nut at the cen-
ter of the damper. (Fig. 43)
2. Turn the pressure screw approximately one half turn
clockwise with an Allen wrench provided with your
stove.
3. Tighten the lock nut. Prevent the pressure screw
from turning as you tighten the nut. Re-test the
damper.
Tighten the Damper handle as Needed
A handle on the left side of the stove controls the
damper. The handle attaches to the damper rod with a
set screw. Periodically check the set screw and tighten
as necessary.
how to adjust the Door latches
The front door of the stove should close securely to
prevent accidental opening and should close tightly to
prevent air from leaking into the fire chamber. The door
handle will be positioned vertically when the door is
closed.
Over a period of time, the gasket around the door will
compress and the latch may need adjustment. To ad-
just the handle, follow this procedure:
1. Remove and retain the lock nut with a 9/16” wrench.
(Fig. 44)
2. Loosen the set screw with a 1/8” Allen wrench.
3. Rotate the pawl 180°. Replace the lock nut. Tighten
the set screw.
4. Additional adjustment can be made by removing the
flat washer. Or any combination of washer removal
and/or pawl rotation.
Test the door seal. Close the door on a dollar bill and
attempt to pull it free. If the bill is freed with little re-
sistance, the gasket isn’t snug enough at that spot.
Continue to make small adjustments until the setting is
right.
If additional adjusting of the latch does not enable the
door to seal sufficiently in one area, try “adjusting” the
gasket in that area. Pack more cement or a smaller
diameter gasket into the channel beneath the gasket so
the main gasket is raised and makes contact with the
door frame. If this procedure doesn’t solve the problem,
replace the gasket. Instructions for gasket replacement
are given later in this section.
Replace the Stove gaskets as Needed
Your Defiant uses fiberglass rope gaskets to make
a tight seal between some parts. With use, particu-
larly on moving parts, gaskets can become brittle and
compressed and can begin to lose their effectiveness.
These will need periodic replacement.
The sizes of replaceable gasket are listed below, along
with their applications.
gasket Diameter... ...and the parts it Seals
5/16” The griddle to the stove top
(wire reinforced gasket)
5/16” The damper to the upper fireback
7/16
the front doors to the stove front; and
the doors to each other.
3/8”
The ash door to the front of the bottom
panel
3/16”
The outer glass panes to the door
If you need to change a gasket, first obtain an appropri-
ate replacement from your Vermont Castings’ Autho-
rized Dealer.
Wait until the fire is out and the stove has cooled. Be
sure to follow the standard safety procedure for working
with dusty materials: wear safety goggles and a dust
mask.
The procedure for replacing gaskets is the same, re-
gardless of the gasket location. Follow these steps:
ST554
Damper adjustment
11/00
Pressure Ad-
justing Screw
Allen
Wrench
Lock Nut
Damper
ST554
Fig. 43
Adjust the damper with the Allen wrench.
ST1154
door pawl
Roller
Lock Nut
Set Screw
Shoulder Screw
Handle Stub
ST1154
Fig. 44
Rotate pawl and/or remove flat washer to adjust
latch.
Flat Washer
