Torque Converter System

[NOTICE]

◆ Using different brands of torque converter oil together can change the properties of the oil and may have an adverse effect on the system. If torque converter oil must be added, be sure to use the same brand of oil as that is already in the machine. If another brand of torque converter oil must be used, drain all the remaining torque converter oil before adding new oil.

Maintenance Table

The torque converter and transmission are very hot immediately after traveling. Let the torque converter and transmission cool down until you can touch them with your bare hand before starting maintenance work.

[NOTICE]

◆ An excessively low or high oil level can cause the transmission to fail or overheat. Make sure that the oil level is within the specified range.

◆ Dust, foreign material or water in the torque converter could cause a failure. Be especially careful when adding or replacing torque converter oil to prevent any foreign substances from entering the torque converter.

Checking Oil Level

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

2. Switch the PTO switch to OFF. Shift into Neutral and start the engine.

3. Idle the engine for a few minutes to raise the oil temperature to approximately 122°F (50°C).

4. After making sure that the level in the oil gauge on the transmission does not sink any more, check the oil level. If the oil level is in the middle of "H" and "L", the oil level is ok. If the oil level is low, add oil through the filler port of the torque converter.

Replacing Oil

◆ Clean the area around the plug before removing it to prevent dust and other foreign materials from entering the torque converter system.

◆ When replacing the oil, also clean the strainer and replace the oil filter.

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

2. Remove the drain plug at the lower part of the transmission to completely drain the oil.

3. Clean the drain plug. Install the drain plug and tighten it.

4. With the engine shut off, add oil through the torque converter filler port until the level reaches the "H" mark of the transmission oil level gauge.

5. Switch the PTO switch to OFF and shift into Neutral. Start the engine and let it idle.

6. The oil level drops gradually because the oil is passing through the torque converter, pipes, oil-cooler, filter, etc.

Add oil little by little to compensate for the drop in oil level. Keep the engine idling for approximately 5 minutes and continue to add oil until the indicator bar in the transmission oil level gauge remains in the specified range with the oil at a temperature of 122°F (50°C).

Strainer Cleaning

・・・Every 1,000 Hours or Once a Year

1. Drain oil first.

2. Remove the strainer from the lower part of the transmission.

3. Clean the bottom face of the transmission case through the strainer mounting hole.

4. Wash the strainer as follows:

(1)Wash the strainer on the surface with a soft nylon brush immersed in thinner or kerosine.

(2)Rinse the strainer with water.

(3)Pass 43 -57 psi (3 - 4 kg/cm2) compressed air from the inside of the strainer.

(4)Dry out the strainer.

Line Filter Element Replacement

・・・Every 1,000 Hours or Once a Year

◆ Mounting position: at front right side of transmission

Remove the case and replace the filter element.

T01928J

5. Clean the strainer. Remount it.

Remove the line filter case in the transmission and replace the filter element.

6. Refill the transmission with oil.

Fuel System

Warning

Fuel leakage could cause a fire. If an oil leak is discovered, immediately repair it. After replacing the filter element or bleeding air, wipe away all spilled fuel.

Using diesel fuel mixed with gasoline or alcohol is dangerous. This practice could cause a fire or explosion, resulting in serious injury or death, or damage to the machine. Use standard diesel fuel only. Do not mix diesel fuel with gasoline or alcohol.

Maintenance Table

◆ For fuel filter element replacement procedures, refer to the "Engine" operation manual.

[NOTICE]

◆ Use fuel that meets the standards shown below:

ASTM is an acronym for the American Society for Testing Materials which recommends fuel containing 0.5% or less sulfur content.

Note that a sulfur content exceeding 0.5% reduces time between engine oil changes by 50%.

Water Separator Water Level Check

Check the with the fuel gauge in the instrument panel.

◆ When the water level reaches the red line on the water separator, drain the water regardless of the check interval.

1. Loosen the drain plug to drain water.

2. After the water has drained, tighten the drain plug.

3. Check that there is no fuel leakage.

WARNING

Using different brands of brake fluid together can change the properties of the fluid and may have an adverse effect on the brake system. For brake fluid, use "TADANO Genuine Brake Fluid". If another recommended brand must be used, drain all of the remaining brake fluid before adding new fluid.

"TADANO Genuine Brake Fluid" and other recommended brake fluids are all glycol-based. If a silicon- or mineral-based brake fluid is used, it will permeate the packing causing the brakes to become ineffective. Therefore, always use glycol-based brake fluid.

Some low-grade glycol-based brake fluids have a low boiling point. Using a low-grade brake fluid is dangerous because it could result in vapor lock. Use only "TADANO Genuine Brake Fluid" or another recommended brand.

Over time, brake fluid gradually absorbs moisture from the air, which lowers its boiling point. This behavior could result in vapor lock. Be sure to replace the brake fluid regularly.

WARNING

If the brake fluid is leaking, the brakes will cease to function, an extremely dangerous condition. If the fluid level is low, check the brake system for leaks. If there are no leaks but the fluid level has lowered, the disc brake pads may be worn. Inspect the pads for excessive wear.

Make sure the fluid level is between H and L. If the level is low, remove the cap and add fluid.

◆ There are 2 brake fluid reservoirs located in the center right side of the carrier.

◆ Fasten the cap where the match marks meet on the cap and the tank.

Brake Fluid Replacement

Every 1,000 Hours or Once a Year

For brake fluid replacement, contact the nearest TADANO distributor or dealer.

Disc Brake Pad Wear Check

Every 250 Hours or Every 3 Months

Warning

Using the brakes when the pads are at or near their wear limit will not only damage the disc plates but also cause the brakes to quit working altogether, an extremely dangerous condition. If an inspection reveals that the pads are near their wear limit, have the nearest TADANO distributor or dealer replace the pads immediately.

Brake pads whose thickness is within working specifications can still be carbonized by heat build-up, worn unevenly or scratched. If scratching, abnormal wear or rust is discovered on the disc plates during inspection, the pads must be removed and inspected. If the condition is severe, the disc plates or pads may have to be replaced. Have the nearest TADANO distributor or dealer inspect them immediately.

[NOTICE]

◆ Pad wear inspection should be carried out for all wheels. If, as a result of inspection, even one pad is worn to near its wear limit, replace all pads, or pairs of pads together; the left and right front pads or the left and right rear pads.

3. If an inspection shows that there is no clearance between the caliper and the check gauge, the brake pad is at its wear limit.

1. Support the crane by fully extending the outriggers.

2. Check the wear of the pads by inserting the check gauge (included) into the caliper check holes.

◆ The check gauge cannot be inserted at some points, depending on the orientation of the tire. If so, turn the steering wheel as far as possible and then reinspect.

◆ There are three check holes for each front wheel and two for each rear wheel.