Section 3
Table 3-1 Recommended Maintenance & Frequency
Equipment
Recommended Maintenance
Recommended
Interval
Loosen the belt shaft bearing mount bolts at one end of the furnace
(entrance or exit). While facing the end (entrance or exit) of the furnace, use
the following procedure. If the belt is tracking to your left, pull the left side of
the belt shaft forward and/or move the right side of the belt shaft rearward. If
the belt is tracking to your right, pull the right side of the belt shaft forward
and/or move the left side of the belt shaft rearward. Repeat this procedure
at the other end of the furnace. It is best to make these adjustments in small
increments. Adjustments that are too large will cause a belt tracking
problem in the other direction. At the exit end of the furnace, the transport
motion sensor will also have to be loosened and moved with the belt shaft to
maintain engagement with the gear on the belt shaft. Now run the belt at its
highest speed and observe how the belt is tracking. Repeat the adjustment
procedure until the belt tracking is centered.
Chamber
The chamber normally does not require maintenance. If a problem with the
chamber is suspected, the manufacturer should be consulted. Because the
process gas is inserted through the insulation, the gas flow away from the
insulation prevents contamination from building up on the chamber walls. To
help reduce flux residue buildup in the chamber, the zones can be set at
400°C and the furnace can be put into a self-cleaning cycle for about an hour
to burn out these organic residues.
Process
dependent
Cooling
Fans
Inspect all system cooling fans and flow switches, for freedom of movement
and proper operation.
6 months
Drip Trays
Remove and clean the drip trays, located under the process exhaust stacks.
Access to the trays is through the top removable section of the furnace
chamber, located above the trays, or at the furnace entrance, behind the
cosmetic entrance molding. For procedure on removal and cleaning of the
trays, consult the furnace Reference Manual, Section 7.5.1. Depending on
the process, if very little buildup is found, cleaning may not be necessary
more than once a year.
After the first
6 months of
operation,
Drive Chain
The chain drive system is contained in the
motor enclosure at the exit end of the
oven. Lubricate the drive chain with
FurnacePros #100523 chain lube or a
commercial quality non-dripping chain
lube.
Every 6
months of
operation
Drive Chain
Tensioner
The chain tensioner is equipped with a grease fitting for lubrication. The
chain tensioner should be lubricated every 6 months with a general
multipurpose bearing grease. Apply enough grease to the tensioner so that
excess grease can be visually seen squirting out along the shaft of the
device. Wipe off all excess grease that has squirted out to avoid dirt
accumulation.
6 months
Drive Motor
Mounts
The drive motor is contained in the enclosure at the exit end of the oven.
The motor mount bolts must be checked periodically and tightened if
necessary.
Annually, or
as required.
3-4
LA-309 Owner’s Manual
Содержание LA-309
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