ITW Dynatec DM55 DynaDrum - Page 124

ITW Dynatec
Chapter 7
Maintenance and Repair Notes
Page 124 DM55 DynaDrum PP V6, Manual No.21-18, Rev.2.19
4. To Install a T-Wiper Seal:
a. Pull the t-wiper over the platen
assembly. Roll the wiper ring
down to the top ring groove.
b. Install the first upper clamp over
the wiper ring, placing it in the top
groove of the wiper.
c. Secure the top clamp using the
screw in the clamp. Tighten the
clamp just until it no longer slides
along the seal against the force of
the screwdriver tightening it.
Note: To avoid damaging the
wiper ring and/or clamp, do not
over-tighten the screw in the
clamp.
d. Install the second upper clamp
onto the bottom of the wiper ring
on the top groove of the wiper.
e. Secure the bottom clamp using
the screw in the clamp.
To Install a Steam Hose Seal:
a. Separate the steam hose (black) seal at its butt-joint. Bend back the strapping
covering the clamp. Loosen the clamp by unscrewing the worm gear. Remove the
seal.
b. Thread the strapping through the new seal. Install the new seal on the platen. Position
the two seals so that their butt--joints are 180 degrees apart. Insert the end of the
strap through the clamp and tighten by screwing the worm gear.
c. Beginning in the middle of the seal, stretch and tap the wiper around each side of the
platen with a rubber mallet until the ends of the wiper are butted tightly together.
CAUTION
Make sure the seals/ wipers are lubricated. Without lubrication, they will not seat
properly and will tear.
5. Conduct a test for leaks prior to putting the machine back into operation. At operating
temperature and pressure, lower the platen into a barrel of adhesive for five to ten
minutes. Inspect the edges of the platen for adhesive leakage.