Milnor 7272TG1L, Installation And Service

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Felt Seal Inspection and Maintenance
PELLERIN MILNOR CORPORATION
3.
How To Close a Front Seal Gap
[Document BIPD6M04]
This instruction applies to Milnor dryer models 50040xxx, 6458xxxx and 7272xxxx.
The gap between the two felt seals at the front of the basket must not exceed 1/4" (6 mm). These
seals help to retain heat and prevent goods from squeezing between the basket and shell front. If
this gap widens (due to wear or a change in basket position), it can be closed by gluing additional
felt to the rearmost felt seal, as shown in
Figure 8 . It is not necessary to replace the existing seals
unless they are deteriorated (see document BIPD6M03 “Felt Seal Inspection and Maintenance”).
Table 1: Materials Available from Milnor for Closing Seal Gap
P/N Description -- sizes in inch" and (mm) Purpose
20C044 3M Rubber and Gasket Adhesive #1300 - pint Glue seals
27A688 Felt, 1/8" (3) thick x 3/4" (19) * Add to rearmost seal, if needed
27A689 Felt, 1/4" (6) thick x 3/4" (19) * Add to rearmost seal, if needed
27A687 Felt, 1/2" (13) s 1 1/2" (38) * Longer front-most seal, if needed
* Sold by the foot. Felt must fit around basket circumference. 50040 models = 14' (427 cm);
6458 models = 18' (549 cm); 7272 models = 20' (610 cm).
Figure 8: Adding Felt to Existing Seal
Section View Detail A Legend
.
1. Basket
2. Existing gap. Must be
between zero (no gap)
and 1/4" (6 mm).
3. Flap seal
4. Front-most felt seal
5. Rearmost felt seal
6. Glue additional felt to
rearmost seal
1. Prepare the dryer for safe entry including lockout/tagout.
2. Once all appropriate precautions are observed, enter the basket.
3. Lift the flap seal and measure the felt seal gap. If the gap is greater than 1/4" (6 mm), add
thickness (see Table 1 ) to the rearmost felt seal as follows:
a. Cut length to fit around the circumference of the basket.
b. Apply adhesive (see Table 1 ) to one side and edge of felt and let dry.
c. Apply adhesive to a small section of the mating surfaces on the dryer.
d. Press the new material against the existing seal and basket. Hold for about 30 seconds.
e. Continue in small sections until the seal material is completely installed. Cut off excess
material and butt the ends together.
— End of BIPD6M03 —
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