If you notice your mini excavator/ digger isn't performing as normal or a problem occurs, these are the common issues and the necessary measures that should be taken.
Engine
Trouble
Cause
How to Resolve
Starting Difficulties
Fuel is too viscous
Check the fuel tank and filter
Remove any impurities and water
If required, change the filter
Air or Water is in the fuel system
Remove any water from the fuel tank
Check the fuel pipe joint nuts and bolts for looseness
Purging of the fuel system
The oil viscosity is too high so the engine runs sluggishly in the winter
Pour hot water over the radiator
Battery is almost dead; insufficient compression
Recharge the battery
Insufficient engine power
Low fuel level
Check fuel and add if required
Clogged air filter element
Clean the air filter element
Engine suddenly stops
Low fuel level
Check fuel and add if necessary
Purge the fuel system
Abnormal exhaust
Poor Fuel
Use a high quality fuel
Too much engine oil
Drain the engine oil to the prescribed level
The water temperature warning lamp ON (Temperature too high, so overheating)
Torn or worn fan belt
Adjust or replace
Coolent level is too low
Fill to the prescribed level
Radiator grill or fins are clogged
Ensure its clean
Coolant is contaminated with rust from the cylinder head or crank case
Replace coolant fluid and add anti-rust
Defective radiator cap (evaporation)
Replace
Corroded coolant pipes
Clean
Continuous operation under full load
Reduce the load
Engine oil level too low
Fill to the prescribed level
Use of poor fuel
Use prescribed fuel
Hydraulic System
Trouble
Cause
How to Resolve
Boom, arm, bucket, drive, swing and dozer power is too low
