
114 31200243
Maintenance Section
Illustration 202 g00836172
Stabilizer and rollover protection structure
Lower stabilizers (2) until the stabilizer pads are
touching the ground. Inspect each stabilizer fully.
Inspect the beams, stabilizer pads, mounting
hardware, cylinders and the pivot pins.
If equipped, inspect Rollover Protection Structure
(ROPS) (3) or inspect Falling Objects Protection
Structure (FOPS) (3). Inspect the ROPS or the FOPS
carefully. Do not attempt to straighten the structure. Do
not attempt to repair the structure by welding. Consult
your Caterpillar dealer if damage is found to the ROPS
or to the FOPS.
Illustration 203 g00836174
Boom and quick coupler
Inspect all sections of boom (4). Inspect the boom after
the boom is extended fully and the work tool is on the
ground.
Completely inspect quick coupler (5). Also, inspect the
work tool.
Illustration 204 g00836174
Pivot pins and anchor points
Inspect all pivot pins and inspect all anchor points for
wear.
Braking System - Test
Service Brake
Check the area around the machine. Make sure that the
area is clear of personnel and obstacles.
Check the brakes on a dry, level surface. Fasten the
seat belt before you check the brakes.
The following procedure is used in order to determine if
the service brake is functional. This procedure is not
intended to measure the maximum brake
performance. The brake holding torque that is required
to sustain an engine torque at a specific engine rpm
varies depending on the machine configuration. The
variations are the differences in the engine setting, in
the power train efficiency, and in the brake holding
ability, etc.
Test Procedure
1. Remove the work tool and park the machine in the
travel position.
2. Start the engine and disengage the parking brake.
Place the transmission in FIRST GEAR
FORWARD.
3. Apply the service brake and fully depress the
accelerator pedal in order to increase the engine
speed.
4. The machine should remain stationary during this
test.
5. Switch off the engine and engage the parking
brake.