Gear Oil [NOTICE]

◆ Using different brands of gear oil together can change the properties of the gear oil and have an adverse effect on the machine. When gear oil is added, be sure to use the same brand that is in the machine. If a different brand of oil must be used, remove all the remaining gear oil before adding the new oil.

◆ Clean the area around the plugs before removing them to prevent dust and other foreign matter from entering.

◆ Clean the plugs and plug holes, and wrap sealing tape around the plugs before installing and tightening the plugs.

Maintenance Table

Winch Speed Reducer Oil Level

Check ・・・・・・・・Every 500 Hours or Every 6 Months

Winch Speed Reducer Oil

Replacement ・・・・・・Every 1,000 Hours or Once a Year

WARNING

The speed reducer is very hot immediately after operating. Let the speed reducer cool down until it can be touched with your bare hand before performing maintenance work on it.

Checking Oil Level

1. Set the crane on a level surface.

2. Remove the level plug and check the oil level. There is no need to add oil if the oil level comes to the bottom of the plug hole. If low, remove the filler plug and add oil through the filler plug hole.

4. After all of the oil has drained out, install and tighten the drain plug.

5. Pour fresh gear oil through the filler plug hole until it begins to come out of the level plug hole.

6. Install and tighten the filler and level plugs.

3. Install and tighten the level and filler plugs.

Replacing Oil

1. Set the crane on a level surface.

2. Place an oil pan under the drain plug to catch the oil.

3. Remove the drain, filler and level plugs, and drain the oil.

Swing Speed Reducer Oil Level

Check ・・・・・・・・Every 500 Hours or Every 6 Months

Swing Speed Reducer Oil

Replacement ・・・・・・Every 1,000 Hours or Once a Year

The speed reducer is very hot immediately after operating. Let the speed reducer cool down until it can be touched with your bare hand before performing maintenance work on it.

Checking Oil Level

1. Set the crane as follows:

(1)Support the crane on extended outriggers in a level position.

(2)Raise the boom to an angle where it does not hinder maintenance work.

2. Remove the level plug and check the oil level. There is no need to add oil if the oil comes to the bottom of the level plug hole. If low, remove the filler plug and add oil through the filler plug hole.

2. Remove the drain plug and attach a hose to the vent. Remove the filler and level plugs to drain the oil.

3. Install and tighten the level and filler plugs.

Replacing Oil

1. Set the crane as follows:

(1)Support the crane on extended outriggers in a level position.

(2)Raise the boom to an angle where it does not hinder the maintenance work.

3. After all of the oil has drained out, remove the hose. Install and tighten the drain plug.

4. Pour fresh gear oil through the filler plug hole until it begins to come out of the level plug hole.

5. Install and tighten the filler and level plugs.

Speed Reducer Oil Level Check

(For Hydraulic Pump)

Every 500 Hours or Every 6 Months

Speed Reducer Oil Replacement

(For Hydraulic Pump) ・・・・・・・・・・・Every 1,000 Hours or Once a Year

WARNING

The speed reducer is very hot immediately after operating. Let the speed reducer cool down until it can be touched with your bare hand before performing maintenance work on it.

Checking Oil Level

1. Support the crane on extended outriggers in a level position.

2. Check the oil level using the oil level check window. There is no need to add oil if the oil level comes to the center of the oil level check window. If low, remove the filler plug and add oil through the filler plug hole.

Replacing Oil

1. Set the crane on a level surface.

2. Place an oil pan under the drain plug to catch the oil.

3. Remove the drain and filler plugs, and drain the oil.

4. After all of the oil has drained out, install and tighten the drain plug.

5. Pour fresh gear oil through the filler plug hole until it comes to the center of the oil level check window.

6. Install and tighten the filler plug.

3. Install and tighten the filler plug.

Hydraulic System

Warning

The hydraulic oil and hydraulic equipment become very hot immediately after an operation. Let them cool down before starting maintenance work.

Even when the engine is not running, some hydraulic components remain under high pressure. Careless dismounting or disassembling will cause serious accidents to the human body. Do not attempt to dismount or disassemble hydraulic components, pipings and couplings.

◆ If the crane is operated for a long time with the hydraulic oil at a high temperature, the oil will rapidly deteriorate, shortening the life of the hydraulic components.

Take enough care of oil temperature.

◆ The hydraulic oil is more viscous when its temperature is low. If, in cold weather, the crane is operated with a heavy load at high speed without allowing it to warm up, the hydraulic components could be damaged. When the ambient temperature is low, do not start crane operation right away. Instead, let the crane warm up sufficiently; until the oil temperature rises to approximately 68°F (20°C).

◆ Using different brands of hydraulic oil together can change the properties of the oil and have an adverse effect on the machine. When hydraulic oil is added, be sure to use the brand that is in the machine. If a different brand of oil must be used, be sure to take out all the remaining hydraulic oil before adding the new oil.

Maintenance Table

◆ Be sure to handle the hydraulic pipes carefully. Handling these pipes incorrectly can cause oil leaks or the hydraulic components to malfunction. Whenever a pipe has to be removed, be sure to consult the nearest TADANO distributor or dealer.

◆ Dust, foreign matter, water, etc. in the hydraulic oil tank or pipes could cause a machine failure. Keep these parts free of dust when working on them.

◆ Contact the nearest TADANO distributor or dealer for the replacement of line filter from 7 to 8 in the list below.

Oil Level Check (Hydraulic Oil Tank)

Once a Day

Oil Replacement (Hydraulic Oil Tank)

Every 4,000 Hours or Every 4 Years

Every 2,000 Hours or Every 2 Years

[NOTICE]

◆ After the hydraulic oil has been replaced, the hydraulic pump must be bled since air may be present in the suction side of the pump. The hydraulic pump could experience failure if it is operated without first bleeding it. The hydraulic pump must not be operated after replacing the hydraulic oil unless it has been properly bled. For instructions on how to bleed the hydraulic pump, contact the nearest TADANO distributor or dealer.

◆ Replace the oil within 250 hours or 3 months after the machine has been delivered (whichever comes earlier):

• Replace it every 4,000 hours or 4 years after that.

(Applicable to TADANO Hydraulic Oil LL.)

• Replace it every 2,000 hours or 2 years after that.

(Applicable to other than TADANO Hydraulic Oil LL.)

◆ Replace the oil filters described in this chapter at designated intervals.

Checking Oil Level

1. Stow the crane in the traveling configuration on level ground.

2. Check the oil level with the oil level gauge. The oil level gauge is marked taking into account the effect of oil temperature. Check whether the oil level is between the 32°F (0°C) mark and the mark corresponding to the current oil temperature. If the oil is low, remove the cap on the hydraulic oil tank and add oil through the filler port.

- Example -

When the current oil temperature is 68°F (20°C), there is sufficient oil in the tank if the oil level is between the 32°F (0°C) and 68°F (20°C) marks.

◆ When the oil temperature is 32°F (0°C) or lower, regard the 32°F (0°C) mark as the proper level.

Replacing Oil

◆ When replacing the hydraulic oil, also replace the return filter.

1. Stow the crane in the traveling configuration on level ground.

2. Remove the cover from the filler port and use an oil pump to pump the hydraulic oil from the tank into an oil drum or other suitable container.

3. Remove the drain plugs at the bottom of the tank to release any remaining hydraulic oil.

4. Check the inside of the tank and clean if any dust or foreign matter is found.

5. Clean the drain plug and wrap sealing tape around it, then reinsert and tighten.

6. While watching the oil level on the level gauge, add new hydraulic oil into the tank.

7. Remount the cover on the hydraulic oil tank. ◆ Mount the cover with the stamped “F” facing to the front.

8. Bleed the hydraulic pump.

9. Check the oil level again. If low, add more hydraulic oil.

Oil Level Check (Oil Reservoir)

Checking Oil Level

Check the level of the oil in the oil reservoir (at the front of the cab). The oil level should be between the "H" and "L" marks. If low, remove the cap on the oil reservoir, and add oil.

Replacing Oil

◆ Replace oil at your nearest TADANO distributor or dealer.

Return Filter Replacement (Hydraulic Oil Tank) ・・・・・・Every 500 Hours or Every 6 Months

1. Remove the top cover on the hydraulic oil tank and take out the return filter.

Air Breather Replacement (Hydraulic Oil Tank) ・・・Every 500 Hours or Every 6 Months

Unlock the air breather cap to remove it. Remove the two bolts, then use a wrench (spanner) as shown in the figure to remove the element holder. Replace the element with a new one.

2. Remove the snap pin and then the nut from the return filter.

3. Replace the filter element with a new one and reassemble the return filter.

4. Install the return filter in the tank and remount the cover.

Return Filter Replacement (Drain Circuit)

・・・・・・・・・・・・・Every 1000 Hours or Once a Year

◆ Location: Bottom surface of the hydraulic oil tank

1. Remove the filter using a strap wrench.

◆ Place a waste beforehand to catch the hydraulic oil which may spill when the filter is removed.

2. Attach a new filter.

◆ Apply hydraulic oil thinly to the gasket beforehand.

◆ Tightening torque: 28.9 ft-lb {39 N m}

Line Filter Cleaning (Accumulator Circuit)

・・・・・・Every 1,000 Hours or Once a Year

◆ Location: rear side of the front right outrigger

1. Remove the case using a wrench {2.08 in.(24 mm)}.

◆ After removing the case, place an oil pan to catch the oil leaking from the pipe.

2. Remove the filter element. Wash its surface with a soft nylon brush in kerosene.

3. Apply compressed air of 3–4 bar {300

400 kPa} from the inside of the filter element and dry it.

4. Apply the hydraulic oil to the O-ring, install the filter element, and attach the casing.

◆ Tightening torque: 28.9–36.2 ft-lb {39–49 N m}

Line Filter Replacement (Winch Brake

Circuit) ・・・・・・Every 2,000 Hours or Every 2 Years