Operating Environment; General; Operating In Low Temperatures; Operating In High Temperatures - jcb JS300 Service Manual

General

In low and high temperature conditions, take the following precautions. They will make it easier to start and
prevent possible damage to your machine.

Operating in Low Temperatures

NOTICE Do not connect two batteries in series to give 24V for starting as this can cause damage to the
electrical circuits.
1. Use the correct viscosity engine lubricating oil.
Refer to: Technical Data > Fluids, Lubricants and Capacities (Page 262).
2. If available, use a low temperature diesel fuel.
3. Use the correct coolant mixture.
4. Keep the battery at full charge.
5. Fill the fuel tank at the end of each work period, this will help to prevent condensation forming on the tank
walls.
6. Protect the machine when its not in use. Park the machine inside a building or cover it with a tarpaulin.
7. Install a cold weather starting aid. In very low temperatures (less than the value shown) additional starting
aids may be needed. Examples are fuel, oil and coolant heaters. Ask your JCB dealer for advice.
Temperature: -20°C (-4.0°F)
8. Before the engine is started, remove any snow from the engine compartment or snow could get into the
air filter.
Operating in Extremely Low Temperatures
In extremely low temperatures (below 0°C (32.0°F)) special care must be taken. Extend the warm up time and
cover the front faces of the radiator and oil cooler. After warm up, remove the covers.
1. Until the machine is thoroughly warmed up never try to slew quickly or operate the travel system, or damage
can occur.
2. Before the machine is operated after a warm up, make sure that the boom, dipper bucket, slew and travel
services all operate correctly. A time lag may occur when selecting these services if the hydraulic oil is
not sufficiently warm.
3. If the machine will be left outside for more than one day without being used, remove the battery and take
it indoors.
4. Drain the water collected in the fuel system to prevent it freezing.
5. Clean the machine after use and put it on wooden blocks. Keep the rams as fully retracted as possible.
Remove any water from the exposed portion of the piston rods.
6. Additional low temperature fuel and lubricants and batteries may be required. Contact your local JCB dealer
for advice.

Operating in High Temperatures

1. Use the correct viscosity engine lubricating oil.
2. Use the correct coolant mixture.
3. Check the coolant system regularly, keep the coolant at the correct level. Make sure there are no leaks.
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Operating Environment

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Operation
Operating Environment
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