Recently one of our customers was having some issues with an unstable PAT DS350 crane angle display on a Liebherr LTM1160. Our crane repair technicians provided him with some simple tests to narrow down what his problem may be:

PAT DS350KD Crane Angle Display Test:

1. Testing external wiring and angle sensor. Temporary wire replacement between DS350KD Central Unit (behind the seat) and angle sensor in PAT cable reel.

b. Make a note of each wire number or wire color that is connected in the green terminals X1/32, X1/33 and X1/35. You need to return those wires back to the correct terminal when done.

i. X1/32 = GND (Electronic Ground – not Crane Ground) for crane cable reel with crane angle sensor

iii. X1/35 = – 5V (that is minus 5V) power supply to cable reel with angle sensor

d. Remove the existing wires at the main board terminals X1/32, X1/33 and X1/35.

f. Make a note of the cable numbers or color code of each wire connected to the cable reel terminal 1, 3 and 4. You need to return those wires after testing to the correct terminals.

g. There should be a jumper from 1 to 5 and 2 to 6. Leave those jumpers in the terminals as they are. Ensure good condition and termination of those jumpers. A poor connected jumper can cause the angle problem as you described.

h. Remove the wires (coming from the central unit) from cable reel terminal 1,2 and 4. Ensure that the appropriated wires are disconnected at both ends, the central unit and the crane cable reel.

i. Make yourself three long jumpers with single wire, minimum wire gauge AWG16, that are long enough to reach from Central unit to the cable reel. Preferably different colors to avoid mix up.

ii. If unstable the problem is somewhere on the main board, the crane angle sensor, or radio interference near the crane.

l. After testing, switch crane power off and return wiring as you noted to their original conditions.

2. Testing Central Unit components, such as main board, AS110 components, etc. by simulating a fixed angle signal of 45 degree.

b. Obtain 2 Resistors 4.7kOhm (Radio Shack or other electronic store) ¼ Watt / 5 or 10% tolerance.

c. Install the resistors into the main board terminals X1 (central unit) as described below

i. First resistor between X1/32 (first leg) and X1/33 (second leg). Ensure that both sides (legs) of the resistor do not short out. Note there is no polarity on resistors – it doesn’t matter which way they are placed.

ii. Second resistor between X1/33 (first leg) and X1/35 (second leg). Ensure that both sides (legs) do not short out. Note that there is no polarity on resistors. Note that terminal X1/33 has two legs in the terminal the second leg of the first resistor and the first leg of the second resistor.

d. Switch crane power on and the console should indicate approximate 45 degree boom angle. Of course when you boom up or down this value will not change as it is a fixed signal produced by the resistor network that you created by installing this. It acts like a voltage divider.

e. If angle indication stays stable – main board and central unit components are good. If not stable – problem locate on central unit parts, such as main board, AS110 component, central unit internal wiring or A/D converter, etc. In this case professional services are definitely needed to continue. Please contact Bode Technical Services.

f. Note, that for both test (1 and 2) a long enough test period is required to obtain and observe the condition under different heat conditions. Also, swing is recommended to observe any pattern of boom direction. This is important to rule out any radio interference.

Crane Repair Terex PPM ATT 1300

Another successful crane repair by Bode Technical Services’ technicians for a customer in upstate New York. This time on a Terex PPM ATT 1300 that had been inoperable for over 2 years due to electronic failures. After successful completion of these crane repairs the Terex PPM 1300 was once again operable and has since been on several jobs. Needles to say our customer was very happy to have his crane back up and running.

Crane repairs completed on this job:

· Replaced and set up a new PDC analog output card to enable hydraulic pump #2 operation

· Repaired several wiring issues of the superstructure crane electrics and the in cab dash wiring.

· Tested all electronic control outputs and inputs and the computation in the PDC control system.

More Pictures:

Recent Liebherr Crane Repair & Service Job: Liebherr LTM 1160

One of our crane repair technicians successfully completed a job on a Liebherr LTM1160 for one of our customers in Texas.

The customer reported issues with the crane's main hoist speed, cane boom locking and unlocking, crane telescope percentage indications intermittent LMI (Load Moment Indicator) power loss and asked for a general tune up of the Liebherr Digi-Pal crane control system and the PAT DS350 LMI system. When we arrived the customer had the boom locking motors for telescope section 1 cached to keep the boom locking pins in unlocked position. This was needed to retract manually the telescope section in order to move the crane from a job site.

Liebherr Crane Repair and Troubleshooting items:

Terex Comedil and Peiner join forces on Cincinnati hospital project

Terex crane helps build hospital

A big hospital project is aided by Terex

US hire firm Maxim Crane Works is using Terex Cranes’ new Transfer Masts with two newly purchased SK575-32 hammerhead tower cranes for construction work on a hospital expansion project.

HD23-TS212, HD23-TS23, TS23-H20 and TS23-TS21 Transfer Mast sections are designed to allow components of Terex's Comedil luffers and Peiner hammerheads to be used together.

Through the $200m expansion project, 60 acres of land is being used to provide an additional facility that will give patients access to a new cancer centre, an orthopedics centre and can accommodate open-heart surgery procedures.

Work on the site required cranes with a minimum freestanding under-hook of 214ft, due to wind load rating requirements of 45mph in-service and 94mph out-of-service mandated in the city of Cincinnati.

Maxim’s tower crane division already owned 100 tower cranes, all of which are Terex cranes. With most of these being hammerhead tower cranes it has nearly 1,000 300tm–400tm hammerhead tower crane sections in its yard, along with 150 500tm hammerhead tower crane sections and 80 tower sections for its four existing luffing jib and flat-top tower cranes.

Tower operations manager for Maxim Crane Works, Matt Hyden, says that the ability to use the firm’s existing heavy-duty tower sections means greater flexibility for the firm’s fleet of hammerhead tower cranes in states with tough wind load requirements.

He said: “Before, we had to pass on these types of jobs, since we could only reach 100ft freestanding height in Florida with our hammerhead cranes.

“By gaining the extra height with the transfer masts and heavy duty tower sections, this has opened up markets that were previously closed to Maxim Crane. We can get an additional 80ft to sometimes 100ft of freestanding height by mixing tower sections with the transfer masts.”

The firm also benefitted from being able to save on the cost of tower sections for the two new SK575-32s by using the Transfer Masts to incorporate some of its existing, underutilised stock of tower sections.

Hyden explained that as jobs requiring a crane's maximum freestanding height are infrequent, the company often had a lot of unused tower sections for its luffing jib and flat-top tower cranes laying idle in its yard.

“We had excessive inventory for such a small number of cranes. We had 40 unused luffing jib tower segments. Purchasing the transfer masts allowed us to use those towers with the new cranes, so we could more efficiently use our inventory and save money on the crane purchase price.”

In this case Maxim saved the cost of an additional 10 tower sections, and Terex says the four new Transfer Mast types improve the flexibility of application not just for hammerhead tower cranes, but also for Terex flat-top and luffing jib cranes.

Explaining the rationale behind the Transfer Masts, sales director for Terex Cranes, Matthew Dobbs, said: “The luffing jib and flat-top cranes are Terex Comedil legacy brand designs, while the hammerhead crane line originated from our Terex Peiner legacy brand. Bringing the two designs together in order that any Terex crane could be used with any tower section was one of the final connections we had to make, so these designs would be true Terex tower cranes.”

*Article from Cranes Today Magazine*

Bode Technical Services specializes in crane repair on Terex Cranes, Demag Cranes, Link-Belt cranes, Grove Cranes , Liebherr Cranes , and Krupp cranes. Beyond crane repair, Bode Technical Services also utilizes a global network of crane parts suppliers including PAT-Hirschmann, Load Systems International,Terex-Demag, Grove, Liebherr Cranes, and Greer, Demag Cranes

Manitowoc develops productivity software for cranes

Manitowoc software

Positioning software for Manitowoc

Sunnyvale, CA, headquartered Trimble has developed wireless technologies and software for linking field and back office operations for clients in construction and government.

The system being developed for cranes on construction sites provides real time positioning data to the centimeter using non-contact sensors, and interconnects position and productivity data.

Crane operators can use the system to view the site, multiple working crane zones, forbidden zones, target locations and other site information on in-cab displays, Manitowoc said.

A local wireless network (WLAN) shares the crane position information with each operator and lift scheduler on the construction site, Manitowoc said.

By enabling an alarm or a halt in crane operation when sensors detect unplanned crane activity, managers can better monitor crane activity.

The system can receive constant updates of data from Building Information Modeling (BIM) tools and other site sensors to its intelligent environment database.

Manitowoc says that back offices can instantly check crane status against the BIM plan using the system’s wireless internet connectivity option.

The system is being designed to run on fat or thin client accessing software tools and capabilities, Manitowoc said.

Manitowoc said, “The Connected Community is a Web-based set of networking tools that allow contractors to build information portals, share information and collaborate between head office management, site office teams, field crews, subcontractors, suppliers, engineers and clients on a project.”

Bob Hund, executive vice president, crane care, Manitowoc Cranes, said, “Manitowoc is committed to providing the most advanced and comprehensive range of lifting solutions.”

“Working together with Trimble allows us to access market leading technology to collaborate to develop innovative tools to increase crane operator awareness on a construction site,” he said.

John Cameron, general manager of Trimble’s integrated technologies division, said, “Trimble is already using much the same technology to deliver significant productivity improvements to the construction machine control market.”

Cameron continued, “By partnering with Manitowoc Cranes, a lifting industry leader, we expect to co-develop solutions capable of lifting and delivering materials on the construction site similar to a contract manufacturer who uses a pick-and-place machine to build an electronic circuit board. Our goal is add crane productivity as another key component of the connected site.”

Hirschmann schools engineers in LMI troubleshooting

Hirschmann holds training for engineers

Hirschmann LMI training

Taught by Hirschmann’s Dean Bakner and John Featherston, the course focused on how to use and maintain Hirschmann’s iVISOR MK4E/2 and iVISOR maestro load moment indicators

Both instructors used a variety of methods in and outside of the classroom, including simulation software, to help attendees of the course understand the theory behind Hirschmann operator aids.

Content included learning how to correctly wire, calibrate and effectively troubleshoot a systemic problem caused any of the load moment indicator’s components.

As well as the classroom-based portion of the course, part of the training included handling the load moment indicator as part of a mobile crane’s operator assistance systems.

Recent Crane Repair & Service Job: Liebherr LTM1800

Bode Technical Services was proud to assist our customer in Panama with their 1000 Ton Liebherr LTM1800 crane repair issues, Liebherr Digi-Pal electronic system malfunctions and PAT Load Moment Indicator (LMI) issues. High humidity and moisture ingress had caused extensive corrosion of electronic components.

Crane Repair & Service Issues Adressed:

Hiap Tong takes delivery of a Grove GMK6300L

New possession of Grove GMK6300L

International rental firm Hiap Tong has bought a Grove GMK6300L all terrain crane for work within its headquarter country of Singapore.

The Grove GMK6300L all terrain, with 300t of lifting capacity, is one of two cranes in Manitowoc's new six axle all terrain class. It offers extended boom reach, compared to its higher capacity sister crane, the Grove GMK6400.

The new Grove GMK6300L is booked for replacing elevators in residential buildings owned by the Singapore government’s housing development board.

Hiap Tong’s executive chairman and CEO Ong Teck Meng said, “Since starting out in 1978, we’ve continuously focused our operations on providing creative solutions to complex lifting problems.”

“A key part of our ability to offer that to customers is having the best cranes in the business. In our opinion, the Grove GMK6300L is the best crane in this class,” he said.

Manitowoc’s executive vice president of Manitowoc Cranes in Greater Asia-Pacific, Gilles Martin, explained that the Grove GMK6300L is popular elsewhere in the region.

“We have sold other Grove GMK6300L cranes in New Zealand, Australia and China. The feedback is very positive and customers love the cranes,” he said.

The Grove GMK6300L’s 80m main boom gives it the ability to reach heights without having to fit a jib.

Martin said, “The standout feature is obviously the main boom, but we find customers also really like the strength the crane offers across the whole load chart.”

By saving assembly time, the long boom allows clients to meet tighter deadlines according to the manufacturer.

“For a company like Hiap Tong that has projects in general construction, refineries and industrial plants, this combination of features makes this compact and powerful crane an ideal lift solution for a wide range of projects,” said Martin.

Among the features included on the GMK6300L is Megatrak suspension for improved travel, and an Allison transmission carrier with a torque converter.

The crane includes CraneSTAR internet-based remote monitoring system, which assists with maintenance.

 Hiap Tong crane rental, based in Singapore, serves the marine, petrochemical and construction industriese, and works alongside its equipment trading division.

The company works in India, Indonesia, Malaysia and the Middle East and customer base of over 200 companies, includes SembCorp Industries, Keppel Corporation, Bachy Soletanche, and Dyna-mac Engineering Services.

*Article from Cranes Today Magazine*

Hüffermann Krandienst drives a Liebherr home

It is the fifth 100-tonner working for the crane service. The Liebherr LTM 1100-5.2 mobile crane was onsite at Hüffermann Krandienst’s north German Vechta depot by October after managing director Daniel Janssen collected the new crane directly from Liebherr’s plant in Ehingen, 700km away in the south of Germany.

Hüffermann Krandienst has its roots in a wagonsmith business formed in 1913 by William Hüffermann. The company began hiring cranes in 1965. Today it is managed by Daniel Janssen and Rolf Hüffermann, its third generation of managers.

Liebherr says the LTM1100-5.2, with a lifting capacity of 100t, is a cost-effective crane usable in multiple applications, that is extremely economical in operation.

Manitowoc provides a solid foundation for Mississippi bridge

Manitowoc aids in erection of bridge in Mississippi

Massman Construction uses Manitowoc 7000

Owned by Massman Construction, the lead contractor on the joint venture responsible for the bridge’s construction, the 350t crane has been adapted for use as a pedestal crane and fixed to a 93ft x 195ft river barge.

Massman Construction will use the crane to lift the rebar cages needed to form the foundations of the two 406ft pylons that will support the completed bridge.

During the project, the crane will position more than 70 of the preassembled rebar cages, which weigh between 22.5USt and 50USt, and is configured with 325ft of main boom along with a 60ft jib for the job.

Massman Construction project manager for the Mississippi River Bridge project, Dave Helmig, said: “The Manitowoc 7000 saves us time. There would be no way we could meet the schedule without preassembling these rebar cages.”

Evansville, Indiana-based contractors Traylor Brother and Alberici Constructors of St. Louis make up the other two firms in the joint venture, and together with some other Manitowoc cranes, the Manitowoc 7000 will assist in construction of the main bridge sections, lifting 50ft-long span sections weighing 100USt each.

For this task in the later stages of the project, the crane will be reconfigured with 400ft of main boom and a 60ft jib to achieve a tip height of 460ft.

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DS350 Crane Angle Display Test

PAT DS350KD Crane Angle Display Test:

Crane Repair Terex PPM ATT 1300

Crane repairs completed on this job:

More Pictures:

Recent Liebherr Crane Repair & Service Job: Liebherr LTM 1160

Terex Comedil and Peiner join forces on Cincinnati hospital project

Terex crane helps build hospital

A big hospital project is aided by Terex

Manitowoc develops productivity software for cranes

Manitowoc software

Positioning software for Manitowoc

Hirschmann schools engineers in LMI troubleshooting

Hirschmann holds training for engineers

Hirschmann LMI training

Recent Crane Repair & Service Job: Liebherr LTM1800

Crane Repair & Service Issues Adressed:

Hiap Tong takes delivery of a Grove GMK6300L

New possession of Grove GMK6300L

International rental firm Hiap Tong has bought a Grove GMK6300L all terrain crane for work within its headquarter country of Singapore.

Hüffermann Krandienst drives a Liebherr home

Crane Service company selects 100 ton Liebherr LTM1100

Liebherr is chosen crane

Manitowoc provides a solid foundation for Mississippi bridge

Manitowoc aids in erection of bridge in Mississippi

Massman Construction uses Manitowoc 7000

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