After telescoping to the correct height, went to raise jib to 0 degrees, and all the drives would shut off. It would go down, but wouldn’t come up. Tomas said on “SOME” T85’s and “SOME” generators (pre-emission), the jib reatining winch can trip the phase detector. Jumper the 2 red wires together in 1 slot (11 & 14), and bypass phase detector. Once operation is complete move wires back.
Crane will not move E1514 message – Liebherr 81K.1
Message E1514 indicates faulty display, however it could be that the CANbus system is open, and the display is the first component. Check the “T” which should be moved to the load pin . In this case the pins were bent on the Anemometer, and needed replaced.
Reeving Impossible / Assistance Mode on Processor display
Processor shows the following
Remote shows the following
Crane may think it is in “High Height” (H3) and 4 parts of line are selected (DM). In H3 (High Height) crane must be operated in 2 parts of line (SM), not enough line on hoist drum.
Make sure S917S is adjusted properly. It is the limit box on the end of the jib retaining motor.
If the switch is adjusted properly, and not activated (Normally Closed NC), check Fault Stack (3-4-1)
Most recent fault is that the CanOpen Module is not detected. Verify by checking Can Module Inputs on processor (3-9-1)
Check for RUN light on Can Module (U213X)
If the RUN light is not on check T131F (the +24VDC transformer) for power. If the DC OK light is not on, the transformer is not working.
Check Circuit Breaker Q133F to make sure transformer is being supplied 480 VAC. If breaker is tripped and cannot be reset, replace transformer.
If RUN light on, but flashing, it is not communicating with the processor. It will still show U213X as not detected. Disconnect H4 (hoist), H5 (slew), H6(Trolley) connectors on Can Hub (U237X)
These are the communication cables for the labeled drives and operate on the same CAN2 network. If the H3 disappears (may need to restart crane), plug each cable back in to determine which one (or more) may be the problem. The cable(s) may not be the only problem. It quit possibly could be the drive(s) as well.
**There was a similar scenario with a different cause** Operator complains that the display shows reeving impossible. Processor thinks its in H# position, but the CAN Module has the correct lights activated. Looking at processor, it has no input from Can Module (Menu 3-9-1) The CAN hub U237X has a green light, and appears to be working. The CAN module itself has contact between the “blocks”, slide the CAN Module blocks off and on again to “clean” contacts and processor and CAN Module begin communicating again.
AC not working in cab
Here is the condensed version of the expanded troubleshooting tree.
Issue
AC/Heat unit not working
Cause
The AC unit not working can be caused by multiple problems, follow the procedures in the resolution notes to find out what is wrong with the unit, or if it need replaced
Resolution
- Check the circuit breakers that control the AC and heat units
2. Check phase detector inside AC unit to be sure it has 2 lights
3. Replace AC controller to the left of seat
4. Check to see if the Condenser fan on the back of the cab runs when AC is selected, if not, check the fuses
5. Try using the “Defrost” setting and see if the AC turns on
6. Access AC unit and check to see if all the sensors are connected and working properly
7. If you cannot figure out why the AC unit is not running, order a new unit and replace it
TA23-450-C – Troubleshooting flow chart for the ultraview cab air conditioning system_EN
Checking hours of operation on Liebherr 81K.1
Open the side door to access the crane display
Turn the switch that looks like an open book to the right.
This should be the display
Press the F1 button, and the following should be displayed
Press the F2 button
Press the F4 button and crane hours are displayed
Press F2 again and hours for each motion are displayed
Adjusting Weathervane Cable and Yoke
**This is extremely difficult with crane folded up, should be done with crane erected**
You will need very skinny 8mm end wrench and mini bit ratchet.
Remove cable clip, weathervane arm (careful to keep the washers) and motor cover (4 phillips or hex head screws)
Raise rubber seal to brake coil
Tighten the 2 screws on the bottom of the yoke to remove excess freeplay. DO NOT REMOVE ALL FREEPLAY
Reinstall rubber seal in place. Before reinstalling motor cover, loosen the 3 bolts on the weathervane cable bracket.
The cable and bracket will need readjusted.
Reset Maintenance Light – Wacker Nueson
Press and hold the X button for 10 – 15 seconds. Warning light will disappear and interval will reset.
AMCS on Igo T85A will not trolley
The AMCS system did not record inner and outer limits for the trolley sensor.
Go to the sensor screen, and click on the “Gear” icon next to the trolley sensor
The top line of the should show the current position of the trolley.
Although you can set position 1 or 2 first, start with position 2 (the outer limit), so you can trolley back in and set the inner limit (position 1). Once you position the trolley at the outer limit, verify the distance and sensor value and click the checkmark box. Repeat for position 1 at the inner trolley limit
600 Series Anchors
On P62US (same as P62B) anchors, tapered pins (longer of the 2 pins, 60mm and 59mm) go through spigot and template (tower). These will be the bottom tower pins. Straight pins (59mm) go through anchor and spigot.
Measure the pins and fishplates )spigots) to be sure. Also check for which holes to use on the template.
Removing or Install Contactors to DIN rail
For Schneider Electric (Telemechanique) contactors, press down on the top of the contactor and pull the bottom off the rail, then lift up off the rail. For installation, slide the top over the rail, and press down to snap the bottom on and release.
Please see video: