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- Find Caterpillar 14H ES Motor Grader for Sale. 2006 CAT 14H VHP Motor Grader. 30098 CHILLIWACK, BC. 2003 CATERPILLAR 14H Motor Grader. 12803 SACRAMENTO, CA. 2007 CATERPILLAR 14H Motor Grader. 30473 DUBAI, ARE. 2007 (unverified) Cat 14H Motor Grader, Motor Grader- MONTANA, USA.
- “We have 800 miles of gravel roads,” Faust explains, and his stable of 10 graders – a Cat 135H, 8 John Deere 670 Bs, and a Fiat F675 – does the bulk of the work keeping roads in shape. North Dakota engineer Jon Mill sys, “Roadway maintenance is a large part of our assignment, and the motor grader addresses many maintenance functions.
- Caterpillar 14H Motor Grader Compressor Clutch with Coil - New Caterpillar 14H Air Conditioning(Replacement Clutch For Compressor 883E1906)5.35', 1 Groove, 24 Volt.
The drive shaft rotates between the torque converter and the transmission whenever the engine is running. Contact with the rotating shaft can result in personal injury or death. The rotating shaft is located under the implement and steering pumps. Do not allow personnel into the pump bay area behind the cab when the engine is running. |
Sudden movement or accidental starting of the machine can cause personal injury or death to persons on or near the machine. To prevent personal injury or death, perform the following: Park the machine on a smooth, level surface. Lower the work tool to the ground and engage the parking brake. Stop the engine and remove the key. Block the wheels and install the steering frame lock. |
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.
Note: Caterpillar ET is a software program that can be used on an IBM compatible personal computer.
| Required Tools | ||
| Part Number | Description | Quantity |
| 8T-0860 | Pressure Gauge | 1 |
| 6V-3989 | Unvalved Nipple | 1 |
| 1U-6602 | Photo-Tachometer | 1 |
Before proceeding to the test procedure that follows, complete the procedure: Testing and Adjusting, 'Machine Preparation for Troubleshooting'
| Illustration 1 | g01062907 |
| View of the components under the cab (1) Pressure tap for output pressure of the fan drive (2) Margin pressure adjusting screw (3) Locknut for margin pressure adjusting screw (4) Pump control valve (5) Fan speed solenoid (6) Cutoff pressure adjusting screw (7) Locknut for Cutoff pressure adjusting screw (8) Fan drive pump | |
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.
- Engage the parking brake.
- 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). - Shift the transmission to neutral.
- Start the engine. Run the engine at high idle.
- 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) . - 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.
- 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'.
- 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.
- 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) - If the pump cutoff pressure of the fan drive pump is not correct, the cutoff valve must be adjusted.
- Stop the engine.
- Loosen locknut (7).
- Turn adjusting screw (6) clockwise in order to increase the pressure setting. Turn adjusting screw (6) counterclockwise in order to decrease the pressure setting.
- Tighten locknut (7).
- Start the engine.
- Repeat Step 7 through Step 15 until the proper fan speed is obtained.
- Use Caterpillar ET in order to reset the 'Engine Fan Bypass Override Parameter'.
- Exit the Caterpillar ET program and disconnect ET from the machine.
Usage:
120H124| Illustration 1 | g00789816 |
Alert Indicators For 143H And 163H (1) Hydraulic Oil Temperature (2) Parking Brake Status (3) Charging System Status (4) All Wheel Drive Status (5) Check Engine Status (6) Engine Coolant Temperature (7) Steering System Status (8) Engine Oil Pressure (9) Brake Air Pressure (10) Transmission System Status | |
| Illustration 2 | g00923072 |
Alert Indicators For 140H, 160H, 12H, 120H And 135H (1) Hydraulic Oil Temperature (2) Parking Brake Status (3) Charging System Status (4) Unused (5) Check Engine Status (6) Engine Coolant Temperature (7) Steering System Status (8) Engine Oil Pressure (9) Brake Air Pressure (10) Transmission System Status | |
Cat 14h Specifications
| Illustration 3 | g00923075 |
Alert Indicators For 14H And 16H (1) Hydraulic Oil Temperature (2) Parking Brake Status (3) Charging System Status (4) Unused (5) Check Engine Status (6) Engine Coolant Temperature (7) Steering System Status (8) Engine Oil Pressure (9) Brake Air Pressure (10) Unused | |
| Hydraulic Oil Temperature - This light will indicate that the hydraulic oil temperature is greater than 100 °C for the 14H, 140H and the 160H. This light indicates that the hydraulic oil temperature is greater than 88 °C for the 143H and the 163H. The temperature is received from the hydraulic oil temperature sensor. |
| Parking Brake Engaged - The light indicates that the parking brake is engaged. Parking brake status is received over the data link. The information is used to modify the warning level of this indicator. If the machine is in neutral, only the indicator lights. However, if the machine is in a forward gear or a reverse gear, the action lamp and the action alarm also activates. |
| Charging System Status - The light indicates that battery voltage is outside the range of 24.8 to 29.5 DCV. While the engine is running, the light also turns on when the alternator frequency is below 90 Hz. In addition to the lighting of the indicator, the action lamp and the action alarm will also activate when the battery voltage rises above 32 DCV. |
| Check The Engine - This application is used with HEUI engines. The light indicates that the engine system requires service. The status is received from the engine ECM via the CAT data link. |
| Steering System Status - The light indicates that the primary steering pressure is low. The pressure is received via the CAT data link. |
| Low Engine Oil Pressure - This light indicates that the engine oil pressure is low. This signal is received by the Caterpillar Monitoring System from the engine ECM via the CAT data link. The indicator lights when the switch voltage is high or the switch voltage is floating. |
14h Cat Grader Specs
Cat 14h Specalog
| Transmission System Status - The light indicates that the transmission conditions are not working properly. The information is received from the power train ECM via the CAT data link. |