Haas Automation CNC Horizontal Machining Center EC-300

• Replace air filter on control box every 2 years.

• EC-400 Replace the Rotary A-axis oil

1. Remove the fourteen (14) BHCS on the right Z-axis way cover at the receiver end and slide it toward the column.

2. Remove the left Z-axis way cover: Jog the Z-axis all the way toward the column and rotate the H-frame 45° counter clockwise. Remove the thirteen (13) BHCS that fasten the waycover to the receiver and remove it through the door at the control pendant.

3. Disconnect the reservoir at the rotary indexer end and plug the end of the hose.

4. Remove the drain plug on the opposite side of the rotary indexer. Replug the hole when the oil has drained.

5. Remove the air escape hole plug on the side of the platter.

6. Fill the rotary table until oil begins to escape from the air escape hole and plug it.

7. Replace the reservoir hose and the way covers. Command the receiver 180° to 0° repeatedly for fifteen minutes.

Check way lube lubrication tank level

Clean chips from way covers and bottom pan

Wipe spindle taper with a clean cloth rag and apply light oil

Sign off on the daily maintenance

Remove the sheet metal necessary to gain access to the transmission. View the sight glass on the side of the transmission box as shown. The oil level should be half way on the sight glass. Fill as needed.

1. Remove the sheet metal from the spindle head.

2. Remove the drain plug as shown. Inspect the magnetic drainplug for signs of metal particles.

3. Blow downward with an air hose in the vicinity of the fill hole to prevent dirt and metal particles from entering the gear case. Remove the fill plug.

4. Add Mobil DTE-25 gear oil until the oil level is half way up the sightglass.

5. Run a spindle warm-up and check for leaks.;

Drain the oil from the bottom of the gearbox

Remove inspection cover beneath spindle head

Add oil slowly from top until oil begins dripping from overflow tube at bottom of sump tank

For 50 taper spindles, add oil from the side of the transmission

Check oil filter and clean out residue at bottom of filter

Check SMTC oil level in sight glass

Warning: This maintenance check requires trained personnel with PPE!

Check the dirt indicator on the 100-micron mesh filter with the TSC system running and no tool in the spindle. Is it in the red zone?

If the dirt indicator is in the red zone, change the element.

Clean the pump intake filter when indicator is in the red zone. Is it clean now?

After changing or cleaning filter elements, run TSC system with no tool in spindle for at least one minute to prime system.

Warning: Use of coolants with extremely low lubricity can damage the TSC coolant tip and pump.

Warning: Increased maintenance schedules are absolutely required with abrasive swarf. The coolant must be changed more often and the tank thoroughly cleaned of sediment on the bottom. An auxiliary coolant filter is recommended.

Warning: When machining castings, sand from the casting process and the abrasive properties of cast aluminum and cast iron will shorten pump life unless a special filter is used in addition to the 100 mesh suction filter.