alignment. To adjust roller chain tension on
grate system (on commercial units), loosen
grate motor mount bolts and slide grate
motor so as to aDect proper chain tension.
/is will be accomplished when there is
about ¼ inch of play in the roller chain.
•
/e fan shaE bearings on belt drive units
should be lubricated with a small amount of
high temperature service grease such as
Drydene Prypoplex EB 2, or the equivalent.
•
Several drops of oil should be placed on the
pitman shaE bearing blocks.
/e chimney connector and chimney should be
inspected at least monthly during the heating season
to determine if ash buildup has occurred. Pay close
a ention especially to horizontal runs If ash
accumulates on the walls of the stovepipe and
chimney, it restricts the @ow of air and reduces draE.
On units that have a direct drive fan, the motor
bearing may need to be replaced as oEen as every
two years. A high pitch whine on fan startup is an
early indicator for bearing failure, and replacement is
a good idea when this is observed. On belt drive fans,
the pillow block bearings and belt should be checked
every three months. AEer the initial burn of two to
six hours shut the boiler down and retighten the
pillow block bearing set screws. To tighten the fan
belt, loosen the four bolts that hold the motor to the
bracket. Slide the motor down and re-tighten, being
careful that the motor is properly aligned with the
fan shaE. Some models have a hinged motor mount
with adjusting screws. To check for proper
alignment of the pulleys, use a straight edge lying
across both pulleys.
AEer rea aching the fan motor assembly to the
boiler, turn the fan over by hand to ensure that it
does not bind. If a tight spot is evident, loosen the
locking pillow block collars on the shaE and move
the shaE in until the fan touches the boiler and mark
the shaE. /en pull the shaE out until the fan
touches the abrasion shield and mark the shaE.
Finally, position the shaE midway between the two
marks and re-tighten the collars. Be certain to
replace the belt guard if it was removed for
servicing.
Belt-Driven Fan Assembly Removed from Boiler and
Showing White Ceramic Heat Shield
FAN ASSEMBLY REMOVAL/REPAIR
/is guide may be used for removal of the fan
assembly and repair/removal of the fan impeller. /is
procedure is required when servicing the fan
assembly or heat exchanger area. We recommend
you contact Alternate Heating Systems for this
repair procedure.
1. Remove electric wires and conduit at fan
motor or junction box.
- 39 -
Disconnect power to boiler before
beginning this procedure.
Содержание COAL GUN S130
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Страница 37: ...Appendix B Wiring Diagrams 31 ...
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Страница 40: ...Appendix C Exploded Parts Drawing 34 ...
Страница 51: ...Appendix E Troubleshooting Guide 45 ...
Страница 54: ...Appendix F Table of Figures 48 ...
Страница 57: ...Appendix H Dump Zone Wiring Applications 51 ...
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Страница 63: ...Appendix I Boiler Piping Examples 57 ...