Standard Coolant - Oil/Coolant Separator - Maintenance

Applies to machines built from: 
June, 2007 to June, 2011

Oil/Coolant Separator - Maintenance

Debris in the oil/coolant separator can cause it to clog. This makes coolant overflow from the rear of the casting. This procedure tells you how to clean the parts inside the oil/coolant separator.

  1. Rear view
  2. Front view
  3. (2) Socket head capscrews (SHCS)
  4. Coolant return hose
  5. Coolant drain hose
  6. (13) Phillips pan head screws
  7. Oil separator tray
  8. Oil separator
  9. Gasket
  10. Input pipe
  11. Coolant drain pipe
  12. Fittings
  13. Mounting bracket
  14. Bubble indicator
note: The gasket [9] remains attached to the oil separator tray [7].

Push EMERGENCY STOP when you do maintenance on the machine.
Disconnect the coolant return hose [4] and coolant drain hose [5]. Remove the oil separator [8] from the oil separator tray [7]. Remove the (13) screws [6]. Remove the oil separator [8] from the oil separator tray [7].

Clean and remove all chips from the removed parts. Clean the input pipe [10] and coolant drain pipe [11].

Install the parts in the opposite order they were removed. Before you connect the coolant drain hose [5] or the return hose [4], pour coolant into the fitting for the coolant return hose [4] to prime the oil/coolant separator. Continue to install the parts in the opposite order they were removed.

Use the bubble indicator [14] to make sure the oil/coolant separator is level. If it is not level, loosen the (2) SHCS [3] and adjust the oil/coolant separator position until it is level. Tighten the (2) SHCS [3].

Be aware: Many service and repair procedures should be done only by authorized personnel. The service technicians at your Haas Factory Outlet (HFO) have the training, experience, and are certified to do these tasks safely and correctly. You should not do machine repair or service procedures unless you are qualified and knowledgeable about the processes.

Danger: Some service procedures can be dangerous or life-threatening. DO NOT attempt a procedure that you do not completely understand. Contact your Haas Factory Outlet (HFO) and schedule a service technician visit if you have any doubts about doing a procedure.