Alamo BUSH HOG RMB 1660 Operator's Manual page 105

Preparation for Sealant Installation
• The best way to clean the frames is to use
90% or higher isopropyl alcohol with a lint
free towel. Simply wipe the frames and
immediately wipe dry with a dry lint free
towel. Stubborn stains may require some
rubbing to remove. Make sure frames are
dry prior to installing sealant.
• Mask area to be caulked. Using a good
grade of painter's masking tape, mask
around the entire perimeter of the filmed
glass and the frame. Masking tape should be
a minimum of 1 to 1 ½" in width to provide
adequate protection. For best protection,
you should mask the film a minimum of 1/2"
away from the frame and 1/2" away from
glass.
Application of Sealant
• Dry the filmed glass and framing members: Using a dry towel, make certain that all the surfaces where
you need to apply sealant are dry to the touch. Any residual water will negatively affect the sealant's ability
to bond to the surfaces.
• Preparing the caulking gun: The tip of the caulking gun should be cut to allow the correct amount of
sealant to be discharged from the gun. If you are sealing with a ½" coverage on the film and the frame, the
opening should be ¾" to 1" in diameter. If you are sealing with a ¼" coverage on the film and the frame, the
opening should ½" to ¾" in diameter. Make certain to use drop cloths in any areas where the sealant could
possibly drip
• Applying the sealant: Place the tip of the caulking gun in the center of the channel formed by the masking
tape and apply the sealant. Do this in as continuous a manner as possible avoiding stops and starts and go
around the entire perimeter of the window. Make certain that sealant is completely filling the cavity
between the frame and the glass.
• "Tooling" the sealant: Smooth or 'tool' the
sealant bead with a flat plastic putty knife or
spatula to create a flat triangular bead when
finished (see illustration Asm-B-0275).
This should be done immediately after
application of the sealant. The tool should be
wide enough to cover the width of the bead
but not so wide as to bridge it.
Once the entire perimeter is tooled, the masking
tape can be removed. This should be done as
soon as tooling is completed so the excess
sealant will come away cleanly. Use every
precaution when removing the tape since the
excess sealant might come into contact with
surroundings. Any residual sealant can be wiped
away with a dry towel if done quickly. If not, then
Xylene can be used to clean away the sealant
that the towel could not remove.
RMB 1660 01/22
© 2022 Alamo Group Inc.
ASSEMBLY
Assembly Section 3-5