5050
let hydraulic oil in all system. Check for leaks.let hydraulic oil in all system. Check for leaks.
（（
1111
））
Close the engine, retract all mast cylinder rods,Close the engine, retract all mast cylinder rods,
check the oil level of hydraulic oil box. Add oil at fillcheck the oil level of hydraulic oil box. Add oil at fill
mark.mark.
5. Change Hydraulic 5. Change Hydraulic TransmissiTransmission Oilon Oil
Refer to ‗Change hydraulic transmission oil‘ fromRefer to ‗Change hydraulic transmission oil‘ from
‗Maintain monthly‘.‗Maintain monthly‘.
6. Check, clean, change fuel filter (Diesel)6. Check, clean, change fuel filter (Diesel)
In the dust and dirty work condition, clean fuelIn the dust and dirty work condition, clean fuel
filters per one month and replace every six months.filters per one month and replace every six months.
（（
11
））
Remove out the fuel filter.Remove out the fuel filter.
（（
22
））
Remove transducer.Remove transducer.
（（
33
））
Before installing new one, install transducerBefore installing new one, install transducer
existing, put a little fuel on the filter airproof.existing, put a little fuel on the filter airproof.
!! CCaauuttiioonn
Before installation, do not add fuel toBefore installation, do not add fuel to
filter, as this may accelerate the wear of filter, as this may accelerate the wear of fuelfuel
system parts.system parts.
（（
44
））
Install new filter.Install new filter.
（（
55
））
Turn the new filter till the airproof mat adheres toTurn the new filter till the airproof mat adheres to
surface.surface.
（（
66
））
Screw down 2/3 turns.Screw down 2/3 turns.
5.5 Annual Maintenance (2000 hours)5.5 Annual Maintenance (2000 hours)
Perform the following maintenance in addition toPerform the following maintenance in addition to
the semi-annual maintenance.the semi-annual maintenance.
1. Replace the engine cooling fluid1. Replace the engine cooling fluid
（（
11
））
Open the radiator cover and loosen the drainOpen the radiator cover and loosen the drain
cover, let the coolant flow out, then wash the coolingcover, let the coolant flow out, then wash the cooling
system.system.
（（
22
））
Screw down the drain cover.Screw down the drain cover.
（（
33
））
Add cooling fluid to radiator up to the top.Add cooling fluid to radiator up to the top.
（（
44
））
Let the engine rLet the engine run fully.un fully.
（（
55
））
Stop the engine, after cool down fully, still addStop the engine, after cool down fully, still add
cooling fluid to radiator up to the top, and add coolingcooling fluid to radiator up to the top, and add cooling
fluid to coolant reservoir ―MAX‖ position.fluid to coolant reservoir ―MAX‖ position.
（（
66
））
Check the Check the drain cover drain cover for for leaks.leaks.
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