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Install CECO Hydraulic Pushrods on Waukesha engines

7042 - 5790 - 3521 - 9390 - 2895 - 5108

Filling and Bleeding Instructions:

  1. Be sure the lifter units and barrels do not contain any foreign matter.
  2. Clamp the lifter upright in a vise below the outer tube on the bottom 2" of the pushrod. Slip the inner barrel out.
  3. Fill the reservoir with IOW-40 weight oil or equivalent. Other oils are used in special cases. (Check with a CECO sales representative.)
  4. Insert the inner barrel into the pushrod and work it down to make sure the lifter unit is seated. (NOTE: The lifter should be spongy at this point.)
  5. Insert a bleed wire (supplied) through the hole in center of the driver and make contact with lifter unit ball check valve.
  6. With the wire holding the check valve open, push down on the driver until the lifter is bottomed out. Release and repeat 3 or 4 times, with the wire holding the check valve open. On the last stroke, hold the driver all the way down and lift the wire out. Let the driver return to its relaxed position. The lifter should act solid almost instantly when any downward pressure is applied to the driver. Repeat 2 or 3 times or until there is no downward movement or sponginess.
  7. If the lifter is to be stored for any length of time, it is necessary to seal the upper and lower barrels with tape and plug the hole in driver cup. If possible, store in an upright position.
  8. CECO Magnum Hydraulic Pushrods should be inspected once a year. If the oil is contaminated, wash out the pushrod with a clean solvent. Replace with clean oil. Magnum units must be kept clean.

Installation:

  1. Remove the Waukesha pushrods and check rocker arm bearings for correct clearance. Replace with CECO Magnum pushrods.
  2. Follow the Waukesha valve adjusting setting procedures, except set the pushrod adjusting screws at 1 1/4 to 1 1/2 turns rather than 1/2 turn as stated in the Waukesha manual.