OPERATION & MAINTENANCE MANUAL STE35SR
1. Open the right hood, lock it with a brace;
2. Use compressed air to remove all sludge, dust and leaves attached to the fins of the water
radiator and hydraulic oil radiator (radiator inlet surface), and clean the air filter at the same
time.
3. Close the right hood and lock it.
NOTE
All fins must be cleaned every 250 hours.
The air filter on the side door should be cleaned as long as there is debris or too much dust.
Internal cooling system - cleaning/replacement
NOTE
The coolant is antifreeze and antirust. Check the antifreeze performance of the coolant every
500 hours.
It is recommended to replace the coolant every 2 years or 3000 hours, in advance according
to the use of coolant.
If the coolant is not replaced in time, the cooling system may be blocked and the engine may
be stuck to the cylinder.
The cooling system needs to be cleaned each time the coolant is changed.
Do not inject cold coolant into an engine that is running or has just finished but the body
temperature is still very high. This may cause cracks in the cylinder block and head.
Cooling system capacity is approximately 5 litres when filling.
When the plant starts, the cooling system has been filled with a mixture of coolant, water and
concentrated antifreeze, which can lower the freezing point of the coolant and increase its
boiling point.
The concentrated coolant contains an effective anti-rust additive to protect the engine and
radiator internal waterways, but the additive is of limited duration.
Do not mix the special coolant for mountain reconstructors with any antifreeze or additives
made by other manufacturers. The mixture may have negative effects.
The content of antifreeze should not be less than 40% in the coolant. The proportion of
antifreeze to 40% of the coolant can reduce the freezing point to -25℃. Antifreeze is 50% of
the coolant, which can lower the freezing point to -37℃.
When determining the coolant (antifreeze) to water mixing ratio, check the past minimum
temperature. In practice, when determining the mixing ratio, set it at a temperature 10°C
below the minimum temperature.
the replacement cycle.
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