3-1
OPERATING THE ENGINE
Inspect Machine Daily Before Starting
Perform the required daily check before starting the engine.
ï‚— Refer to "Maintenance" chapter for detailed information.
Check Points Check Points
Engine
1. Level and contamination of engine oil and coolant
Undercarriage
1. Sag, wear and break of crawler
2. Starting easiness, exhaust gas color, and noise 2. Oil leaks and wear on upper/lower rollers and front
idlers
3. Oil and water leaks, damage to hoses and pipe
lines
3. Oil leaks from travel devices
4. Clogging and damage to radiator, oil cooler and
intercooler
4. Looseness and missing of mounting bolts and nuts
Working Device
1. Check cylinders, pipe lines and hoses for oil leaks and
damages.
2. Wear and damage of the bucket
5. Looseness and missing of mounting bolts and nuts 3. Check bucket teeth for looseness, wear and missing
Upperstructure
1. Fuel level, leaks and contamination of fuel in tank 4. Lubrication state of the working device
2. Hydraulic oil level, leaks and contamination of
hydraulic oil tank
5. Check for pin anti-extraction pins, stoppers, rings and
bolts for damage
3. Movement, play and operating force of all control
levers
4. Operation of all hydraulic components, oil leaks
and damage to pipe lines and hoses
6. Looseness and missing of mounting bolts and nuts
5. Deformation, break and abnormal noise of upper
structure
6. Looseness and missing of mounting bolts and nuts
7. Washer Fluid
Others
1. Operation of instruments, switches, lights and buzzer/
horn
2. Function of parking brake
3. Deformation and break of head guard
4. Abnormal outside appearance of machine
5. Wear and damage of the seat belt
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