Market Forge Industries M24G100A-4SP ユーザーズマニュアル

21

Clean rust, scale and lime deposits from the inside of the  boiler with a wire brush.  

After removing all debris, flush out with clean water  through the hand-hole and drain .
Clean the hand-hole cover with a wire brush and wash.  Be sure the areas that contact the gasket and dy-

naseal are clean and smooth.

To protect against further scale and corrosion remove the old cathodic descaler.  Install a New Market Forge 

Cathodic Descaler. See fig. 2 or 3, page 43.
Without the use of gasket compound, re-install the handhole cover using a new gasket   and dynaseal 

washer.  A torque of approximately 50 in. lbs. is required to reset the hex nut. Reinstall the pressure switch 

box. Bring the boiler to operating pressure. If a leak appears, at the handhole cover, relieve the pressure in 

the boiler and retighten the hex nut. 
Clean the water gauge glass as follows:

Move the heat and power switch to their off positions. This will allow the boiler to empty.
Unscrew the  fittings from both valves and slide them toward the center of the guage glass. Push  the 

water gauge glass downward  compressing the  rubber   washer in the lower  valve  allowing  the  glass 

to be removed.
Remove and discard the two rubber and brass washers. Slip off the two valve fittings and  clean the wa-

ter  gauge glass.  
Reassemble  by reversing the above steps with new rubber and brass washers . (see fig. 4)

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