GEAR 7G8135 - Caterpillar

5. Lock or block the saw blade to prevent rotation.6. Engage saw circuit and set saw pump pressure compensator (2) to 24 800 kPa (3600 psi).7. Turn the begin of stroke adjusting screw on the saw motor out until the gauge on the "M" motor port reads 0 kPa (0 psi). Then slowly turn the adjusting screw in until the pressure gauge on the "M" port starts to rise. The pressure will continue to rise, even with no further adjustment of the screw.Make the setting when a rise in pressure is in the 3450 kPa (500 psi) to 5510 kPa (800 psi) range. Lock the jam nut on the adjusting screw.8. Adjust auxiliary pump pressure compensator (2) to 29 280 kPa (4250 psi).9. Adjust saw control valve main relief valve (3) to 28 940 kPa (4200 psi).10. Readjust auxiliary pump pressure compensator (2) back to 29 280 kPa (4250 psi).11. Remove the saw blade locking or blocking device to permit free saw blade rotation. Engage the saw circuit and bring the engine to high idle speed. Check saw blade RPM using a suitable tachometer. Set the saw speed by adjusting the motor minimum displacement stop. Consult the saw manufacturer to determine the correct saw speed specifications. Adjust the minimum displacement screw in for slower saw speeds and out for faster speeds.
Do not attempt to adjust minimum displacement screw while the saw blade is turning. Shut down saw to adjust between readings.
12. To confirm the correct motor pressure compensator settings, set engine to hi idle, have an assistant engage saw circuit and monitor the saw pump pressure reading with a gauge in the saw feed line. The gauge should read 27 560 kPa (4000 psi) (pump compensator setting) for approximately 10 seconds when the saw circuit is engaged. The pressure will then drop to 24 120 kPa (3500 psi) to 25 500 kPa (3700 psi) (motor begin of stroke point) for about 12-15 seconds. As the saw blade approaches full speed the pressure will drop lower.13. If the first pressure reading is not 27 560 kPa (4000 psi), adjust auxiliary pump compensator (2) as described in the procedure above.14. If the second pressure reading is between 24 120 kPa (3500 psi) and 25 500 kPa (3700 psi) no further adjustment is necessary.15. If the second pressure reading is below 24 120 kPa (3500 psi), turn the begin of stroke adjusting screw out slightly and redo procedure.16. If the second pressure reading is above 25 500 kPa (3700 psi), turn the begin of stroke adjusting screw in slightly and redo procedure.16. Check saw speed up time from engaging the saw circuit until saw feed pressure drops below 24 120 kPa (3500 psi) and compare to saw manufacturers recommendations. The approximate speed up time should be between 28 and 36 seconds.Adjustment Of Stroke Limiters (Side Tilt Operation)
Five valve bank
(1) Side tilt valve. (2) Stroke limiter. (3) Stroke limiter.Stroke limiters (2) and (3) permit adjustment of the speed for the side tilt