Harman Coal Stoker VF3000 - Manual (Page 19)

19
3-90-70741R13_05/13
Maintenance
ash removal
With each hopper of coal
that is burned, approximately one
ash pan full of ashes must be removed. Failure to remove
ashes will result in a blocked grate and the fire will not burn
properly. Remember, the ash pan will be hot, so always wear
protective gloves.
Ashes should be placed in a metal container with a tight
fitting lid. The closed container of ashes should be placed
on a non-combustible floor or on the ground, well away
from all combustible materials, pending final disposal. If the
ashes are disposed of by burial in soil, or otherwise locally
dispersed, they should be retained in the closed container
until all cinders have thoroughly cooled.
weekly:
The small tray in the side of the stoker should be removed
and emptied.
The spring handle located at the center of the unit should
be cycled in and out several times. This action cleans the
interior of the heat exchanger and causes the dust to fall
into the ashpan.
every 3 months:
The grate “clean-out” slide should be opened and reclosed
as shown in drawings below.
In the “closed” position, be sure the “grate clean-out” plate
slide is straight across as shown.
The easiest way to handle this slide is through the ash door
with a poker inserted into the hole at the end. The purpose
of this operation is to let any ash build-up, under the grate,
fall into the ash tub.
This operation can be performed while the unit is burning.
However, you should first lower the thermostat to lower the
stove temperature and be sure you are wearing protective
gloves.
The operation can also be performed when the unit is not
burning by lifting the grate inserts out and removing the ash
with a vacuum cleaner.
Remove baffle slide as shown and remove fly ash.
Baffle slide
Spring
handle
Slide open
Slide closed