OKADA TOP Series Owners And Operators Instruction Manual & Parts List page 36

(5) Insert the side rods into the cylinder from above the cylinder, and install them
in place.
(6) Pass the side rods through the back cap and install the back cap in the
cylinder.
● Do not fail to install the back cap O-ring.
● Pour 200 cc (7 FL. OZ) of hydraulic oil into the back cap before passing the
side rods through it.
(7) Tighten the back nuts to the specified torque. When tightening, strictly follow
the torquing sequence of A → D → B → C (alternate diagonal lines) in several
passes.
(8) Charge nitrogen gas in the cushion chamber. For charging procedure, refer
to the section "Procedure for Inspecting the Cushion Chamber Gas Pressure".
(9) Force grease in several times using a grease gun through the grease nipple
located on the lower side of the front cap.
PROCEDURE FOR INSPECTING CUSHION CHAMBER GAS PRESSURE
The OKADA breakers have been shipped from the factory with nitrogen gas charged in the back cap at the
predetermined pressure. The nitrogen gas pressure, however, will decrease over time and use, resulting in
reduced blowing force. When the blowing force is reduced, check the pressure of nitrogen gas in the back
cap.
Proper N gas pressure at 20°C (68°F)- - - - - - - - - - - - - - 0.3 - 0.4 MPa (43 - 57 psi)
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