New Holland RG140 RG170 RG200 RG170 AWD RG200 AWD Road Graders Operator's Manual - PDF DOWNLOAD

Page 96

MAINTENANCE Connect the two green band terminals (2) with the corresponding one green band terminal, and after that, connect it (4) with the one yellow band terminal. Close the console's cover and start the engine (it is possible only if the parking brake is actuated). After releasing parking brake releasing, select on the "Come-home" switch, placed on the side console, the required direction. If it set to forward position, the transmission 2nd forward speed will be engaged and it set to rearward position, the 1st rearward speed will be engaged. After the machine repair is concluded, reconnect the terminals in the original positions, that means, one green band terminal with another one green band terminal and one yellow band terminal with another one yellow band terminal. 5- COMPUTER AIDED DIAGNOSIS There is a computer aided diagnosis terminal connection, identified by a gray band.

6- CALIBRATION A new calibration must be made in case of: E.C.U.(Electronic Control Unit) replacement, solenoid valves, after any repair in the clutches. Calibration should also be done after 5000 hours of operation.

RG140, RG170, RG200

f) Move the shift handle to the Forward position. g) During the first few seconds of the calibration process, the display will show "---" while testing the cylinder speed and response. h) At this time the clutch calibration process starts. - Directional and speed clutch holds. The display will show C1H, C2H, C3H, CAH, CBH, CCH and CDH while acquiring the respective "hold" time of each clutch. - Directional and speed clutch fills. The display will show C1F, C2F, C3F, CAF, CBF, CCF and CDF while acquiring the respective "fill" time of each clutch. i) The display will show END when the routine is finished. At that time move the shift handle back to the Neutral position. j) Shut the vehicle's ignition OFF, which will power down the TCU. k) Remove the jumper plug from the calibration plug (S16). The calibration is complete.

CALIBRATION PROCEDURE a) Bring the transmission oil temperature up to 1400 to 1600 F (600 to 710 C) for optimum calibration. b) With the vehicle ignition off, apply the park brake. c) Plug a jumper plug (which connects pin A to pin B) in the calibration plug (s16) on the vehicle harness. NOTE: Any errors that appears during calibration will cause the procedure to terminate, and you will have to start the calibration over from the beginning. d) Power up the TCU by turning on the vehicle ignition. The display should show "CAL". e) Start and hold the engine speed at 1600 +/- 50 RPM.

DESCONNECT THE MASTER SWITCH AND CONNECTORS J1, J2, J3 FROM E.C.U. AND T7 FROM T.V.P. BEFORE WELDING ON MACHINE.

Study SAFETY RULES in the front of this manual thoroughly for the protection of machine and safety of personnel. 95


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