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• Cat Grader 14h Manual Pdf
• Cat 14h Motor Grader Specs
• Caterpillar Manuals | Parts, Service, Repair And Owners Manuals
• Cat 14h Weight

Learn technical specifications of Caterpillar 14H - a complete catalog of specifications and quick search of necessary information of Grader. Motor grader Caterpillar 14G Service manual: CAT19-043: 14H: Motor grader Caterpillar 14H Spare parts catalog: CAT19-044: 14H: Motor grader Caterpillar 14H Operation and maintenance manual: CAT19-045: 14H: Motor grader Caterpillar 14H Service manual: CAT19-046: 14H NA.

Cat Grader 14h Manual Pdf

The fan drive pump is a variable displacement piston pump. There is no pressure relief valve in the fan drive system. The pressure and flow compensator valve on the pump controls the pump cutoff pressure. The pressure and flow compensator valve also controls the flow of hydraulic oil to the fan drive motor.

The Caterpillar Electronic Technician (ET) software must be used in order to override fan speed solenoid (5). Caterpillar ET will then provide the correct control pressure to the pump control. The fan speed solenoid is controlled by the engine ECM.

Cat 14h Motor Grader Specs

Note: Caterpillar ET is a software program that can be used on an IBM compatible personal computer.

Caterpillar Manuals | Parts, Service, Repair And Owners Manuals

Before proceeding to the test procedure that follows, complete the procedure: Testing and Adjusting, 'Machine Preparation for Troubleshooting'

The fan drive pump is located in the front of the pump compartment. The pump compartment is on the front frame under the operator compartment. The fan drive pump is in line with the hydraulic and steering pump.

Cat 14h Weight

1. Engage the parking brake.
2. Attach an unvalved nipple to a 0 to 16000 kPa(0 to 2321 psi) pressure gauge. Attach a section of hydraulic line to the unvalved nipple. Attach the hydraulic line to pressure tap (1).
3. Shift the transmission to neutral.
4. Start the engine. Run the engine at high idle.
5. Move the wheel lean cylinder to the end of the stroke. Stall the cylinder. At the same time, circle the moldboard. This will warm the hydraulic oil to normal operating temperature of approximately 60° ± 5°C(140° ± 9°F).
6. Connect Caterpillar ET to the data link connector. The data link connector is located on the front face of the shift console. Start Caterpillar ET.
7. Select the 'File' menu. From the 'File' menu, select the engine 'Electronic Control Module (ECM)' for your machine. Select 'Diagnostics'. Select 'Diagnostic Tests'. Select 'Override Parameters'. Select 'Engine Fan Bypass'.
8. Enter '0%' for the 'Engine Fan Bypass Override Parameter'. Press 'Enter' until all warning messages disappear. This will cause the fan to run at maximum speed when the engine is at high idle.
9. With the engine at high idle, use the 1U-6602 Photo-Tachometer in order to measure the fan speed. The pressure reading of the pressure gauge should be used as reference only. Use the following table in order to determine the correct fan speed and reference pressure.

   Table 2

   Fan Speeds
   Model	Fan Speed	Reference Pressure
   14H	1210 ± 25 RPM	8000 ± 500 kPa(1160 ± 73 psi)
   14H High Ambient	1350 ± 25 RPM	10000 ± 500 kPa(1450 ± 73 psi)
   16H	1350 ±25 RPM	10000 ± 500 kPa(1450 ± 73 psi)
   16 High Ambient	1470 ±25 RPM	11840 ± 500 kPa(1717± 73 psi)

10. If the pump cutoff pressure of the fan drive pump is not correct, the cutoff valve must be adjusted.
11. Stop the engine.
12. Loosen locknut (7).
13. Turn adjusting screw (6) clockwise in order to increase the pressure setting. Turn adjusting screw (6) counterclockwise in order to decrease the pressure setting.
14. Tighten locknut (7).
15. Start the engine.
16. Repeat Step 7 through Step 15 until the proper fan speed is obtained.
17. Use Caterpillar ET in order to reset the 'Engine Fan Bypass Override Parameter'.
18. Exit the Caterpillar ET program and disconnect ET from the machine.