ADJUSTMENT - BRAKES
The Parking/Emergency Brake provides a
force approximately equal to the strength of the
Crawler’s drive system and is used in a number of
ways. One way, is as a Parking Brake. In this
capacity, it holds the Crawler in position when the
Engine and drive system is shut off.
In addition, it provides a
safe start mode
, as
the Brake must be engaged before starting the
Engine. If the operator inadvertently touches the
Track Drive Controls during Engine starting, the
Brake will severely load the drive system and
potentially kill the Engine (unless the Track Drive
Controls are released immediately).
The Brake’s other use is that of an Emergency
Brake. If you should ever lose Engine or drive
system power, the Brake can be activated
instantly to hold the Crawler safely in position.
DISK BRAKE ADJUSTMENT
CAUTION
: Read the following Disk Brake
and Disk Puck instructions in their entirety
before attempting any Disk Brake adjustments!
Release Parking Brake. Unscrew a few turns
the #225C Jam Nut on #225R & #225L Right &
Left Disk Brakes to release each Jam Nut’s
respective #225D Threaded Adjuster Pin.
Rotate the Adjuster Pin on each Disk Brake
in
(clockwise when viewing
face
of Brake) until it
stops...don’t overtighten, just tighten to the point
where it stops and the
pucks
(brake linings) are
tight on the Brake Disk.
Now counter-rotate (counter-clockwise) the
Adjuster Pin of each Disk Brake exactly 180°. The
pucks should have lost their grip on their
respective Disks and both Brake assemblies
should be free to move.
Push forward on the Parking Brake and watch
as each Disk Brakes’ #2485 Pull Rod begins to
rotate forward, and tighten the pucks of each
Brake on their respective Disk.
If the left & right #2485 Pull Rods do not pull
equally on each #225 Brake assembly adjust their
length by loosening the jam nut adjacent to the
#217A Clevis. Remove the #910 Lynch Pin and
#2501 Pin securing the #217A Clevis. Rotate the
2485
2491
440
441
225R
217A
225D
225C
225B
217A
910
2501
2500
910
