NOTE: Links in Sealed and Lubricated
Track should generally experience
reduced pin and bushing bore enlarge-
ment and subsequent retention loss. This is
due to the absence of internal wear, which
in Sealed Track increases flexing of pins
and bushings in their bores.
There should be less flexing of Sealed and
Lubricated pins and bushings because the
bushing is held more rigidly between the
link counterbores over its entire life and
the pin is held more rigidly within the
bushing during its life.
Split Master Link
The two piece split master link allows
each joint to be factory or dealer sealed in
the shop.
Measuring and interpreting master link rail
and other wear patterns is the same for the
split master link as for regular link. Split
master link rebuildability is determined by
the same criteria plus the condition of the
connecting teeth and the bolt hole threads.
Split master link structural problems are
usually related to improper assembly
and bolt torquing. Split master links are
even more susceptible to detrimental
effects of wide shoes.
Assembling and Torquing
Procedure
The importance of proper assembly
sequence and torquing cannot be over-
stressed. Follow these steps for both new
and used split master links.
1. Before installing the track, the point of
connection for the master link must be
clean and not have damage. Remove all
paint from points of connection.
2. Put 2P2506 Thread Lubricant or
5P3931 Antiseize Compound on
threads of master bolts.
3. Put master links together and check
alignment of holes for master bolts.
Install one master bolt in each link. The
bolts must turn easily in the threads,
when turned by hand.
4. Remove the bolts. Install the master
track shoe and all four master bolts.
Turn the master bolts by hand.
5. Tighten the master bolts to initial torque,
plus 1/2 or 1/3 turn. The actual Torque
specifications can be found in the “Man-
agement” section of each machine type.
33
General Information
LINKS