1987 Maxima-5 speed is difficult to grt in to gear--How to adjust clutch and check clutch hydraulic fluid?

TO ADJUST PEDAL HEIGHT ADJUST WITH A STOPPER LIMITING THE UPWARD TRAVEL OF THE PEDAL.PEDAL FREE PLAY IS ADJUSTED AT THE MASTERCYLINDER PUSH ROD.IF PUSH ROD IS NON ADJUSTABLE FREE PLAY IS ADJUSTED BY PLACING SHIMS BETWEEN THE MASTERCYLINDER AND THE FIREWALL.ON A FEW MODELS PEDAL FREE PLAY CAN ALSO BE ADJUSTED AT THE OPERATING SLAVE CYLINDER PUSHROD.PUSHRODS ARE AVAILABLE IN THREE LENGTHS FOR THE 310.PEDAL HEIGHT ABOVE FLOOR IS 6.73 - 7.13 INCH PEDAL FREE PLAY IS 0.04 - 0.12 INCH.YOU HAVE CLUTCH FLUID LONG AS YOU SEE BRAKE FLUID IN MASTERCYLINDER.IF MASTERCYLINDER LOW YOU HAVE TO BLEED THE THE CLUTCH MASTERCYLINDER BY LOCATING BLEED SCREW ON SLAVE CYLINDER. REMOVE THE BLEED SCREW DUST CAP.ATTACH A CLEAR TUBE TO THE BLEED SCREW.PUT OTHER END OF CLEAR TUBE IN A CLEAN CONTAINER OF BRAKE FLUID.FILL THE MASTERCYLINDER WITH BRAKE FLUID.OPEN BLEED SCREW 3/4 A TURN.DEPRESS CLUTCH PEDAL QUICKLY.HOLD IT DOWN.HAVE A HELPER TIGHTEN THE BLEED SCREW.ALLOW PEDAL TO RETURN SLOWLY.BLEEDER SCREW TORQUE IS 5 - 6 FT LBS.IF YOU SEE AIR BUBBLES CLEAR BLEED TUBE.REPEAT THE BLEED PROCESS UNTIL YOU SEE NO AIR BUBBLES.DONT LET CLUTCH MASTERCYLINDER GO DRY WHILE BLEEDING.IF SO YOU GOT START BLEEDING PROCESS ALL OVER.HOPE THIS HELP.