Bijur - Mechanical, Minimum Lubrication - Main Air Regulator - Maintenance

Applies to machines built from: 
January, 1989

Main Air Regulator - Maintenance

If your air supply does not have a filtration system, moisture and debris can enter the main air regulator. This procedure tells you how to clean the main air regulator.

  1. air regulator for grease gun lubrication system
  2. air regulator for bijur mechanical oil pump
  3. adjustment knob
  4. threaded collar
  5. bowl assembly
  6. o-ring
  7. baffle
  8. filter element
  9. drain nut
  10. dump valve
note: Do not turn the adjustment knob [3] during the procedure.

Disconnect air hoses as necessary. Unscrew the threaded collar [4]. Remove the bowl assembly [5]. If installed, keep the o-ring [6], or replace it if it is damaged.

Turn the baffle [7] counterclockwise to remove the filter element [8].

Soak and clean the filter element [8], drain nut [9], the dump valve and the o-ring [10] in a solution of water and a small quantity of soap. Rinse and dry the parts.

Lightly lubricate the o-ring [6] with a mineral-type grease or oil.

Install the parts in the opposite order they were removed. Tighten the dump valve [10] and the collar [4] to prevent leaks, but not enough to damage the o-rings. Connect any hoses that you disconnected.

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.