Howe Rapid Freeze, Service Manual

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15 Service & Adjustment
55
REPLACEMENT & ADJUSTMENT OF ICE DEFLECTOR SCRAPER.
2000 - 6000 pound models only!
The ice deflector scraper is mounted on one of the three bottom ribs using two
3
-20 stainless bolts
and nuts. The scraper's primary purpose is to clear any buildup of ice on the ice deflector as the
deflector passes by the scraper. When properly positioned, the scraper will be approximately
c
above the deflector blade. When replacing the scraper, it may be necessary to cut the angled edge
down to the proper size. This may be cut with either aviation snips or a razor knife.
ICE DEFLECTOR SCRAPER ADJUSTMENT
(EXHIBIT 39)
REPLACEMENT & ADJUSTMENT of the SQUEEGEE & SQUEEGEE WRAPPER
Shut off ice flaker and allow machine to "pump down" (de-ice). Once the machine is clear of ice,
disconnect the main power to the ice flaker and LOCK THE DISCONNECT SWITCH IN THE OFF
POSITION (to prevent accidental start up).
Remove the service access cover on the top casting.
Remove 2 or 3 water distribution tubes for easier access.
Reaching down into the freezing chamber, loosen and remove the two 5/16" bolts holding the
existing squeegee & squeegee wrapper in place.
Remove the squeegee & wrapper assembly through the service opening. If the squeegee wrapper is
not bent out of shape or pitted with rust, then you can remove the rubber squeegee from the wrapper
and install a new squeegee in your existing wrapper.
Reinstall the squeegee & wrapper assembly onto the mounting bracket in the freezing chamber,
hand tighten the nuts with the squeegee touching the evaporator surface, then move the squeegee
assembly approximately 1/16" to 1/8" closer to put a little pressure on the squeegee causing it to
bend slightly so that it will drag on the evaporator surface.
Do not install the squeegee assembly so close to the evaporator so that the squeegee bends
excessively. (This may cause premature squeegee wear and increase load on the gearbox and drive
motor).
Tighten down the nuts and bolts only until the lock washers lock. Do not over tighten bolts, as this may
cause distortion of the squeegee wrapper and possibly cause premature squeegee wear.