Harman CW-30 Assembly instructions

CW-30 “Harman E” Repair Guide 1
Disassembling Instructions and Parts Identication
There are quite a few of the CW-30 stoves still in use out there.
This guide will help you to identify parts and pieces while also providing instruction for replacing
gaskets and/or other various components.
What better way to learn about a stove than to take it apart and put it back together?

CW-30 “Harman E” Repair Guide 2
To begin dismantling the stove, remove the Harman Logo plate from the center of the top.
This will expose a nut which secures the cast iron top to the stove.
Using a ½” socket or wrench, loosen and remove the nut. Then lift the top off of the stove.

CW-30 “Harman E” Repair Guide 3
The under side of the cast iron top is gasketed, mostly to prevent rattles of metal to metal
contact. This is ⅜” low density rope gasket (3-44-00888) attached with gasket cement.
Now you’ll see the inner top, which is held down with (6) ½” nuts and washers. Remove the
nuts and washers to lift the inner top.

CW-30 “Harman E” Repair Guide 4
Looking into the top of the rebox, you’ll see the wafe as shown below. Find a bolt or
screw to t the hole size (3/8” thread) and thread it into a hole near the center of the wafe.
This will provide a handle with which to manipulate the wafe. Lift up on the wafe and tilt
it back to drop it down and out.
Ceramic Fiber Wafe
Item # 3-40-00471

CW-30 “Harman E” Repair Guide 5
With the inner top removed, you’ll now see the damper (Damper Weldment # 1-10-00465)
and the combustion package. (Ceramic Fiber Combustion Package # 3-40-00472)
Pull forward and lift the combustion package out of the top of the stove. Use extra care
when handling the combustion package, as it does become brittle after burning.

CW-30 “Harman E” Repair Guide 6
This view shows the underside of the combustion package. Note the holes and the indents
for the damper frame bolts.
With the Package removed, you’ll see the top of the Pyrolite Ignitor Tunnel. You can also
now see the top of the damper and the damper frame ller plate.
Air Flow Holes, be
sure they are not
blocked.
Indents for damper
frame bolts.

CW-30 “Harman E” Repair Guide 7
Damper Frame Filler Plate
Damper Plate
Damper Frame Mounting Bolts
Front Of Stove
Damper open
Using a ½” wrench and socket, remove the (4) bolts which hold the damper frame up in the
top of the rebox. Be sure to secure the frame from below, as it will drop upon removal of
the last bolt.

CW-30 “Harman E” Repair Guide 8
This is the damper frame assembly (# 1-10-00641) and ller plate (# 1-10-00734) as it is
removed from the rebox.
Close up view of the
damper lift arm.
Front Of Stove
To remove the damper, loosen the two bolts and clips at the ends of the damper plate. The
damper lift arm can be removed by rst removing the external brass elbow. Then pull the
damper lift arm in through the stove wall. (Damper Arm Weldment # 1-10-00638)

CW-30 “Harman E” Repair Guide 9
Damper Frame Assembly Item # 1-10-00641
and Damper Filler Plate Item # 1-10-00734
Note how the ller plate lays in the damper
frame channel, with the end tabs inside.
3/8” Rope # 3-44-00888
1/4” rope # 3-44-108636

CW-30 “Harman E” Repair Guide 10
Remove the Arch Brick (cast iron or refractory) by lifting up slightly then pull the bottom
toward the front of the stove.
Next would be the side bricks. Note the insulation panel on the back side of the side bricks.
There are two side bricks on each side of the rebox.
Arch Brick Item
# 3-40-00615
Right Support Brick
Item # 3-40-00468-2
Left Support Brick
Item # 3-40-00468-1
Ramp Brick
Item # 3-40-
00470
Side Brick (4 total)
Item # 3-40-00469
and insulation backer

CW-30 “Harman E” Repair Guide 11
Once the side bricks are removed, the support bricks can be lifted up and out. To remove the
ramp brick, you need to lift it up then pull the bottom toward you, once it clears the retainer.
Along the front of the rebox, instead of bricks, there are three (3) cast iron Wear Plates.
They t behind tab retainers in front of the front shaker grate. Lift out for removal.
Looking downward thru front
door.
Wear Plate # 3-00-00611

CW-30 “Harman E” Repair Guide 12
The last refractory item remaining is the Pyrolite Ignitor Tunnel, Item # 3-40-00616. This is
the route which the exhaust takes, when woodburning, to the secondary combustion pack-
age. It is a snug t in the back of the rebox, if you lift from the top, it will be easily re-
moved.

CW-30 “Harman E” Repair Guide 13
Once all of the refractory items are removed, remove the grates by lifting up on the right
side until they are disengaged from the grate link and shaker mechanism. Then, lift out.
(Grate # 3-00-00453, Grate Link #2-00-00457)
Grate link
Shaker mechanism
Front Grate Rear Grate

CW-30 “Harman E” Repair Guide 14
To access the air-slide, remove the six(6) bolts holding the cover in place. Notice the notch
in the air slide slot. (must be on top) The air slide and channel can be lubricated with a dry
graphite only. Be sure to re-install the air slide with the square hole upward.
Notch

CW-30 “Harman E” Repair Guide 15
When re-installing the damper frame, start one of the rear bolts into the frame as shown
above. Hold the bolt from below and have a nut ready to start on it above. While positioning
the damper frame, guide the bolt up through the hole and start a nut onto it.
Guide the bolt up
through the hole and
start a nut on it.

CW-30 “Harman E” Repair Guide 16
After positioning the tunnel in the back of the stove, install the ramp brick by rst nosing
the ramp portion into the tunnel. Guide it upward until the bottom of the ramp brick is back
behind the channel. Allow the brick to fall behind the channel then push back on the ramp
portion to ensure proper position. Next install the support bricks so that they are against the
sides of the ramp brick. This may leave a gap in the corners but it is better there than in the
middle since the side bricks will t back against in the corners. Next, place the arch brick
(whether it is cast or brick) onto the shelves created by the support bricks. Be sure the insu-
lation is behind each side brick as you install them last.

CW-30 “Harman E” Repair Guide 17
Guide the combustion package into the top of the
stove. Be sure the tunnel ts between the legs
of the package and the package ts all the way
down. In the rebox top, install the wafe into
the opening on the bottom of the package. Again,
if you thread a bolt into one of the holes, it will
provide a handle for manipulating the wafe into
place. Be sure to remove the bolt once the wafe
is in place.The top picture shows one of the wafe
protectors. These two stainless steel rods simply
slide into the holes on the tabs on each side of the
wafe. (Wafe Protector #2-00-00617)
Wafe protectors
insert here
Wafe Protector
Insert the (3) coal bars into the slots on the
coal bar holders. These protect the glass from
logs or coal burning right against it. (Coal
Bar #2-00-00621 and Coal Bar Holder # 2-
00-03358)

CW-30 “Harman E” Repair Guide 18
Inspect the gasketing around the top of the stove. Repalce if necessary, with 1/4” rope with adhesive backing
item# 3-44-11862. Install the inner top using the washers and nuts removed earlier. One of the washers will be
ground off to t the bolt in the back. Tighten each of the six nuts securely. Re-install the cast iron top by guiding
the center bolt upward through the hole in the top. Secure with a single nut and lay in the Harman logo plate to
nish the job.
Ground off
washer ts here
Helpful Tips: If the Grates warp; Empty the ash pan more
frequently. Ashes against the bottom of the grates block air ow
around the grates and will cause them to warp.
If the damper frame warps or sags; Over-red. Check all gas-
kets and ensure doors are closed when burning. Close the damper
after a good wood re is established.