Checks before starting

The items in this section must be checked ev-ery day before starting the engine.

4.1.2.1 Fuel tank - check/drain

1. Remove lower cover plate of fuel tank.

2. Place a vessel under drain valve (1) to contain drained fuel.

3. Turn drain valve (2) to OPEN position (O) to drain sediment, water and fuel from tank.

4. When clean fuel is seen, turn the drain valve (2) to CLOSE position (S).

5. Reinstall the lower cover plate.

4.1.2.2 Water separator - check/drain

1. Open the pump compartment door on the right side of the machine.

Water separator is integrated with fuel pre-filter (1).

2. Through transparent cover (2) you can observe water level and volume of sedi-ment. In case of water or sediment built up at bottom, place a vessel under drain hose (4) to receive drainage.

3. Open drain valve (3) to discharge water.

4. Immediately close drain valve (3) when fuel is seen coming out of drain hose (4).

Remark:

● Clean transparent cover (2) when

replac-SY115C9、SY135C8/C9、SY155H

Fig. 4-1

Fig. 4-2

SY135C8(M)

Fig. 4-3

ing the additional fuel filter (1) if the trans-parent cover (2) is dirty or it is hard to see the interior through it.

● When drain valve (3) has been removed during cleaning, its O-ring must be greased and the valve must be tightened till it con-tacts the bottom.

4.1.2.3 Drain valve - regulate

If the drain valve (3) does not work smoothly, the part with O-ring shall be greased to make it move smoothly.

1. Place a vessel under the additional fuel filter cartridge (1).

2. Open the drain valve (3) and drain all water and sediment behind the transparent cover (2), and drain the fuel accumulated in cartridge (1).

3. Remove the drain valve (3) after confirming that nothing is coming out of the drain hose (4).

4. Apply suitable amount of grease to the O-ring (5). Pay attention to not greasing the drain valve outlet (6) or its threads (7).

5. Tighten drain valve (3) with hand till it contacts bottom of transparent cover (2).

6. Remove the fuel vessel.

SY115C9、SY135C8/C9、SY155H

SY135C8(M)

Fig. 4-4

Fig. 4-5

4.1.2.4 Hydraulic oil - check/refill

1. Adjust the work equipment to the attitude shown by the right illustration. Check oil level. Add oil if necessary.

For the type of hydraulic oil used on the machine see “Recommended Fluids”

on page 5-17.

2. If the work equipment is not in the illus-trated position, start the engine and run it at low speed. Properly retract the arm and bucket cylinders, lower the boom to rest the arm front end on the ground, and stop the engine.

3. Within 15 seconds after stoppage, operate work equipment joystick controls and travel control levers in all directions in order to release internal pressure.

4. Open the pump chamber door on the right in order to check the oil level gauge (G).

Oil level should be maintained between H and L marks.

Note:

Never add oil to a level above the H mark, which may ruin hydraulic devices and cause oil to squirt. If the oil level is above the H mark, stop the engine and wait for the oil to cool down. Place a container under the drain plug (P) beneath the hydraulic tank and discharge excessive oil from the tank via the drain plug.

5. If the oil level is below the L mark, add oil through filler opening (F) on top of the tank.

● Components and oil art still hot and can cause burns after the engine has been just shut down. Wait for them to cool down before working on them.

● When removing the cap for oil injection, turn it slowly to release internal pressure be-fore removing it.

Fig. 4-7

Fig. 4-8 WARNING

Fig. 4-9

Remark:

The oil level may change as the oil tempera-ture varies. (Refer to the following ranges.)

● Before operation: L+12.5~L+32.5 (Oil temperature: 10 - 30°C (50 - 86°F))

● During operation: higher than the mid-mark.

(Oil temperature: 50 - 80°C (122 -176°F)) 4.1.2.5 Coolant - check/refill

The coolant is hot and the radiator is under high pressure upon shutdown of the engine. It is possible to be burned if you remove the radiator cap (1) to check coolant level at the moment. In this case, before removing the cap (1), you have to wait for the temperature to cool down, and then slowly turn the cap to release internal pressure.

WARNING

Fig. 4-10

Fig. 4-11 1. The level of coolant must remain between

the upper and lower limits marked on the tank when the engine is running. If water level is below the lower limit, it is neces-sary to add coolant to radiator and coolant to auxiliary tank.

2. Open the rear door to the left side of machine and check the coolant in auxiliary tank (2) to see whether its level is between the marks of FULL and LOW. If the coolant level is low, refill coolant to FULL position through the injection opening of auxiliary tank (2).

3. Tighten the cap after refilling the coolant.

after inspection. If no problem is found, check coolant level in radiator. Add coolant to auxiliary tank (2) if its level is low.

5. If auxiliary tank (2) is dirty inside and the level cannot be seen clearly, clean the tank by following the steps specified in “Cooling system - clean” on page 5-37.

4.1.2.6 Oil in engine oil pan - check/refill

1. Open the engine's hood.

2. Take out oil dipstick (G) and wipe the oil off the dipstick with cloth.

3. Insert the dipstick (G) to bottom and then pull it out.

4. Oil level should be between the H and L marks on dipstick (G). Add oil through opening (F) if oil level is below the L mark.

After shutting off the engine, the compo-nents and oil are still hot, which can lead to severe burns. Wait for the oil to cool down before operation.

WARNING

SY115C9、SY135C8/C9、SY155H

SY135C8(M)

Fig. 4-12

Fig. 4-13

Fig. 4-14

5. If oil level is above H mark, the drain valve (P) on the bottom of oil pan is to be opened to discharge extra oil. Check oil level again.

6. Tighten the filler cap and properly close the engine hood if oil level is normal.

Remark:

If you need to check oil level after operation of the engine, shut off the engine and wait at least for 15 minutes before checking.

If your machine is on a slope, move it to a level ground before inspection.

For the type of engine oil used on the machine see “Recommended Fluids” on page 5-17.

4.1.2.7 Electric wires - check

Check whether the fuse is damaged; whether the fuse with proper capacity is used; whether any wire connection is off; whether wire sheath is broken.

Check for loose terminals. Fix it if any.

Moreover, pay special attention to electric wires when checking battery, engine, start motor and alternator. Make sure to check for

● If any fuse burns frequently or any wire shows the sign of short circuit, contact your Sany distributor to find the cause and eliminate the trouble.

● Keep battery surface clean and check the vent on battery cover. Flush the cover to clean the vent if the vent is plugged by dirt or dust.

NOTICE

Fig. 4-15