14
MAINTENANCE
____________________________________________________________________________
Remove the access cover as follows: With a socket ratchet type wrench turn the 1 / 4 - 20
hex nut counterclockwise. Remove the access cover taking care while handling with the
heating elements attached.
Clean rust, scale and lime deposits from the inside of the generator with a wire brush.
DO NOT DAMAGE COPPER HEATING ELEMENTS - BRUSH LIGHTLY. WORK DEPOSITS
TO REAR CORNER AND REMOVE WITH PUTTY KNIFE.
When satisfied that the cleaning of the inside of the generator has been accomplished, flush
out with water. Introduce the water through the access cover and allow it to drain through the
open boiler drain valve.
Clean the access cover with the wire brush and wash. Make sure the areas that will contact
the gasket surface is well cleaned.
Remove old descaler. Install a new Market Forge Cathodic Descaler. (
If old descaler cannot
be removed, see the following instructions a - f
)
Select a place on the front of the access cover where the zinc anode may be installed without
interference, and should have atleast 1 / 2” of water over the top.
Drill and tap a 3 / 4” NPT (
see Figure 1
)
Clean the acccess cover area where the zinc anode will be in contact with the plate CLEAN
TO BARE METAL!
Install new 3 / 4” NPT Brass fitting and zinc anode. (
see Figure 1
)
The zinc anode must be completely covered with water to a minimum depth of 1 / 2”.
Remove metal chips from generator after drilling and tapping.
Re - install the access cover using a new gasket and staggered tightening measures until
boiler is pressurized, then make your final tightening.
Figure 1.
Figure 2.
Clean the water gauge glass as follows:
Unscrew the two valve fittings from both valves until they will be free to slide up and down the
gauge glass. Grasp the water gauge glass and push downward toward the lower valve. This
action will compress the rubber washer at the lower valve and allow the water glass ample
clearance to be drawn free at the upper valve.
Slide off and discard the two rubber and brass washers and slip off the two valve fittings.
Clean the water gauge glass (
A small bottle brush is ideal for this purpose
).
Reinstall by reversing the above steps. Install new rubber and brass washers for best re
-
sults.
Inspect probes for cleanliness (
located at the top of the shell
). If there is any build up on the
probes, you may experience false readings. To clean the probes you may use some steel
wool to remove deposits. After assuring that the probe assembly is clean, you may fasten the
plate back into position. Your boiler is now ready for use!
3.
4.
5.
6.
7.
a.
b.
c.
d.
e.
f.
8.
9.
a.
b.
c.
10.
Содержание M24E24A
Страница 31: ......