MAINTENANCE MANUAL - Meritor

Chemical joint
Description
The CHEMICAL JOINT is a material with pasty
consistency, which is cured at ambient temperature,
forming a resistant joint.
The joints used by MERITOR are:
174 and 574 (LOCTITE) and NEUTRAL SI-LI-
CONE (DOW CORNING 780, LOCTITE 5699,
TREE BOND 1216, RHODIA 567 or 666).
Cleaning
CAUTIONly clean both the junction surfaces,
eliminating the residue of the previous joint,
dirt, oil, grease or humidity. This residue should
be removed using a spatula or sandpaper,
followed by cleaning with a solvent free of oil as
xylol, or toluene or methylethylketone.
Avoid causing grooves in these surfaces, as
they can lead to later leakage.
Procedure For Application
A - Apply a continuous fillet of approximately 3
mm in diameter when the joint is NEUTRAL
SILICONE or apply with a brush when it is
FAG-3 , all over one of the coupling surfaces
and all the fastening holes, to en-sure a
total Seal which avoids leakage;
FILLET APPROX.
3 mm IN DIAMETER
Drying
Before application, ensure that the junction surfaces
are perfectly dry.
Figure 42
CAUTION:
Excessive application causes the
joint mass to migrate inside the
unit, and also leads to difficulties
in future disassembly. Failures in
applying the joint Cord may cause
future leakage.
B - After the application, join the two surfaces
immediately, so that the joint cord spreads
in a uniform manner;
C - Then, tighten the fastening components
with the values specified in the TIGHTE-
NING TORQUES section.
20 MAINTENANCE MANUAL