When a lubrication cycle is commanded, the solenoid applies air pressure to the grease reservoir for 3 seconds (specified in Parameter 2027), which forces the grease to move up the grease pick-up tube  and into the grease manifold. The grease flows through the lubrication lines to the lubrication points where it gets pushed through the restrictors into the components that require the lubrication (ballscrew, linear guides pads, etc). Once the cycle ends, the pressure from the grease reservoir is vented to the atmosphere, the check valve  traps the pressurized grease in the manifold and the grease will start to flow through the snubber and the check valve  back to the grease canister until the pressure in the manifold drops to 0 PSI.
During the lubrication cycle the control monitors the pressure in the lubrication manifold in order to detect a failure of the lubrication system.
When the solenoid is commanded to turn on, the control begins to monitor the status of the pressure switch . The switch is expected to close within 3 seconds (specified in Parameter 1374) from the moment that the solenoid was commanded ON. Once the pressure is detected it is expected to stay for at least 15 seconds (specified in Parameter 1375). If all of the above statements were satisfied during the cycle then the lubrication cycle is considered successful.
If pressure in the system was not detected within 3 seconds (specified in the Parameter 1374) the control will stop monitoring the pressure and display the “Low Lube” warning icon until the next lube cycle. If such a condition was detected for 5 consecutive lube cycles, then the control will generate the Alarm 2073 AXIS LUBRICATION PRESSURE NOT DETECTED. The alarm will not be generated during a program execution, it will only be generated after the program execution ends or after pressing a [RESET] button.
If the pressure in the system drops below 4 PSI before 15 seconds (specified in Parameter 1375), the control will display “Low Lube” warning icon until the next lube cycle. If such a condition is detected for the next 4 consecutive lube cycles (5 total cycles) the control will generate the Alarm 2075 AXIS LUBRICATION RESERVOIR IS EMPTY. The alarm will not be generated during a program execution. It will be generated after the program execution ends or after pressing a [RESET] button.
|Symptom||Possible Cause||Corrective Action|
|Alarm 2082 RESIDUAL PRESSURE DETECTED PRIOR TO AXIS LUBRICATION CYCLE||Clogged orifices, lube lines, or manifolds.||Inspect all orifices, lube lines, fittings, and manifolds for clogs/debris. Refer to Haas Liquid Grease - Purge Clogged Lines procedure.|
Alarm 2073 AXIS LUBRICATION PRESSURE NOT DETECTED
Alarm 2075 AXIS LUBRICATION RESERVOIR EMPTY
|The grease is low or empty.||Refill the grease. Refer to Axis Lubrication System - Grease Reservoir - Haas Liquid Grease - Refill procedure.
Always make sure you replace the grease with Haas Liquid Grease or an approved alternative. The emergency substitute can still generate alarms.
|There is no check valve on the vertical axis grease tube.||Make sure there is a check valve on the grease tube of the vertical axis if there was any air in the tube.|
|There is a problem with the grease manifold.||Inspect the grease manifold, lube lines, and fittings.|
|There is a problem with the pressure switch for the axis grease.||Inspect the pressure switch for the axis grease and check the software version.|
|There is a problem with the axis-lube air solenoid.||Inspect the axis-lube air solenoid.|
|Check Valve O-rings are not seated properly inside the grease manifold assembly.||Use the image in the Check Valve O-rings section to verify the o-rings are seated properly.|
|Grease canister is empty but no alarms are generated and the pressure gauge is holding pressure||Clogged orifices, lube lines, or manifolds.||Inspect all orifices, lube lines, fittings, and manifolds for clogs/debris. Blow out with air, flush with Syngear 1150, replace parts that cannot be unclogged as necessary. Upgrade the mesh filter in the pick-up tube from the previous 40 mesh filter to the new 80 mesh filter.|
|Machine does not appear to be using grease as much as expected|