Instruction Manual

62
Caterpillar: Non-Confidential
Service brake performance
Ensure the machine’s parking brake
system operate normally before checking
the service brake performance in order to
apply the parking brake to stop the
machine in an emergency condition. The
machine travels at 20km/h at the flat,
straight and dry concrete road. Step on the
service brake pedal to brake fully. After the
machine stops, push the transmission
control knob to the neutral position. Pull the
lever of parking brake and then loosen the
service brake pedal. Check the machine
braking distance, which should not be
more than 9 m when the machine travels at
32km/h. Break the machine quickly and
ensure that the machine does not run off
track.
Replace Friction discs
3 longitudinal grooves on the friction disc of
brake caliper signify the grinding capacity.
Replace the new disc when the grooves
are worn down. Easiest way to replace the
new friction disc is the following steps.
External Friction Discs
Step 1: Loosen the retaining screw of
brake caliper pin.
Step 2: Take out the fixed pin of friction
disc.
Step 3: Lightly take off the friction disc.
Step 4: Replace it with a new friction disc.
Step 5: Punch the fixed pin lightly.
Step 6: Tighten the retaining screw of pin.
Internal Friction Discs
Step 1: Loosen the retaining screw of pin.
Step 2: Pull out the friction disc slowly after
taking out the pin.
Step 3: Replace it with a new friction disc