Section 21 Chapter 7 TRANSMISSION CONTROL VALVES AND INCHING VALVE NH

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1 Section Chapter 7 TRANSMISSION CONTROL VALVES AND INCHING VALVE 6-750NH

2 SECTION - TRANSMISSION CONTROL VALVES AND INCHING VALVE - CHAPTER 7 TABLE OF CONTENTS SPECIAL TORQUES... - POWERSHIFT TRANSMISSION CONTROL VALVES... - TRANSMISSION CONTROL VALVE CONFIGURATION Figure - Transmission Control Valve with Four Solenoids Figure - Transmission Control Valve with Four Solenoids Figure - Transmission Control Valve with Three Solenoids and Plug Figure 4 - Transmission Control Valve with Three Solenoids and Plug Figure 5 - Transmission Control Valve with Two Solenoids, Check Valve and Plug Figure 6 - Transmission Control Valve with Three Solenoids and Check Valve Valve Removal... - Disassembly... - Assembly... - Valve Installation INCHING VALVE Removal Disassembly Assembly Installation Inching Valve Cross Section

3 SECTION - TRANSMISSION CONTROL VALVES AND INCHING VALVE - CHAPTER 7 SPECIAL TORQUES Transmission Control Valves Plug, M to 5 Nm (4 to 8 lb ft) Plug, M to 54 Nm (5 to 40 lb ft) Pressure Sensor... 9 to 5 Nm (4 to 8 lb ft) Solenoid Cartridge... 9 to 5 Nm (4 to 8 lb ft) Solenoid Nut to 8 Nm (4 to 6 lb ft) Inching Valve Hex Head Mounting Bolt to 60 Nm (7 to 4 lb ft) Plugs... 4 to 54 Nm (5 to 40 lb ft) Solenoid Cartridge... to 8 Nm (9 to lb ft) Solenoid Nut... 5 to 8 Nm (4 to 6 lb ft) POWERSHIFT TRANSMISSION CONTROL VALVES There is one basic transmission control valve that can be configured for three different applications: Speed Transmission Control Valve (), Odd-Even Transmission Control Valve (), and Range Transmission Control Valve (). The function of this basic valves is determined by its location on the transmission, how it is connected hydraulically and number of solenoids. The odd even and range valve can be removed after raising the cab See Cab Raise/Removal and Installation information for procedure. The speed valve can be removed without removing the fuel tank, but if equipped with the large tank, removing the fuel tank will make access easier. See Fuel Tank information for procedure.. SPEED TRANSMISSION CONTROL VALVE. RANGE TRANSMISSION CONTROL VALVE. ODD-EVEN TRANSMISSION CONTROL VALVE RD98D00 -

4 SECTION - TRANSMISSION CONTROL VALVES AND INCHING VALVE - CHAPTER 7 TRANSMISSION CONTROL VALVE CONFIGURATION This chart matches transmission valve configuration with tractor options controlled by those valves (Figures through 6). TRANSMISSION OPTIONS SPEED TRANSMISSION CONTROL VALVE ODD-EVEN TRANSMISSION CONTROL VALVE RANGE TRANSMISSION CONTROL VALVE NAO WITHOUT MFD/WITHOUT CREEP FIGURE FIGURE 4 FIGURE NAO WITHOUT MFD/WITH CREEP FIGURE FIGURE FIGURE NAO WITH MFD/WITHOUT CREEP FIGURE FIGURE 4 FIGURE NAO WITH MFD/WITH CREEP FIGURE FIGURE FIGURE EURO WITH MFD/WITHOUT CREEP FIGURE FIGURE 5 FIGURE EURO WITH MFD/WITH CREEP FIGURE FIGURE 6 FIGURE NOTE: Before removing any components, thoroughly clean the valve body and the area on the transmission housing adjacent to the valve body to eliminate any contamination. -4

5 SECTION - TRANSMISSION CONTROL VALVES AND INCHING VALVE - CHAPTER 7 Figure - Transmission Control Valve with Four Solenoids This type of control valve is used with these transmission configurations Speed control valve for all tractor configurations VALVE BODY 5. COVER PLATE. PWM SOLENOID 6. PLUG. O_RINGS 7. MOUNTING BOLT 4. GASKET 8. PRESSURE SENSOR (SPEED VALVE ONLY) RI0E00-5

6 SECTION - TRANSMISSION CONTROL VALVES AND INCHING VALVE - CHAPTER 7 Figure - Transmission Control Valve with Four Solenoids This type of control valve is used with these transmission configurations: Range control valve with MFD. Odd - Even control valve with NA park and creep VALVE BODY 6. PLUG. PWM SOLENOID 7. MOUNTING BOLT. O-RINGS 8. SOLENOID 4. GASKET 9. SOLENOID CARTRIDGE 5. COVER PLATE RI0E099-6

7 SECTION - TRANSMISSION CONTROL VALVES AND INCHING VALVE - CHAPTER 7 Figure - Transmission Control Valve with Three Solenoids and Plug This type of control valve is used with these transmission configurations: Range control valve without MFD VALVE BODY 5. COVER PLATE. PWM SOLENOID 6. PLUG. O-RINGS 7. MOUNTING BOLT 4. GASKET RI0E096-7

8 SECTION - TRANSMISSION CONTROL VALVES AND INCHING VALVE - CHAPTER 7 Figure 4 - Transmission Control Valve with Three Solenoids and Plug This type of control valve is used with these transmission configurations: Odd-even control valve with NA park without creep VALVE BODY 6. PLUG. PWM SOLENOID 7. MOUNTING BOLT. O-RINGS 8. SOLENOID 4. GASKET 9. SOLENOID CARTRIDG 5. COVER PLATE RI0E097-8

9 SECTION - TRANSMISSION CONTROL VALVES AND INCHING VALVE - CHAPTER 7 Figure 5 - Transmission Control Valve with Two Solenoids, Check Valve and Plug This type of control valve is used with this transmission configuration: Odd-even control valve with Euro park without creep VALVE BODY 6. PLUG. PWM SOLENOID 7. MOUNTING BOLT. O-RINGS 8. CHECK VALVE 4. GASKET 9. BALL 5. COVER PLATE RI0E095-9

10 SECTION - TRANSMISSION CONTROL VALVES AND INCHING VALVE - CHAPTER 7 Figure 6 - Transmission Control Valve with Three Solenoids and Check Valve This type of control valve is used with this transmission configuration: Odd-even control valve with Euro park with creep VALVE BODY 6. PLUG. PWM SOLENOID 7. MOUNTING BOLT. O-RINGS 8. CHECK VALVE 4. GASKET 9. BALL 5. COVER PLATE RI0E098-0

Valve Removal SECTION - TRANSMISSION CONTROL VALVES AND INCHING VALVE - CHAPTER 7 NOTE: Before removing any components, thoroughly clean the valve body and the area on the transmission housing

RANGE TRANSMISSION CONTROL VALVE To gain access to the speed transmission control valve, remove the fuel tank. See Fuel Tank information for procedure.

11 Valve Removal SECTION - TRANSMISSION CONTROL VALVES AND INCHING VALVE - CHAPTER 7 NOTE: Before removing any components, thoroughly clean the valve body and the area on the transmission housing adjacent to the valve body to eliminate any contamination. STEP STEP 4 RI0E088. SPEED TRANSMISSION CONTROL VALVE. ODD-EVEN TRANSMISSION CONTROL VALVE. RANGE TRANSMISSION CONTROL VALVE To gain access to the speed transmission control valve, remove the fuel tank. See Fuel Tank information for procedure. For access to the oddeven and range transmission control valves, raise or remove the cab. See Cab Raise/Removal and Installation information for procedure. RD0E75 Remove the odd-even transmission control valve as follows:. Tag and disconnect the park lock and if equipped, the MFD tubes (). Tag and disconnect the regulated pressure tubes ().. Tag and disconnect the solenoid wires ().. Remove the mounting bolts (4) and remove the valve and gasket. Discard the gasket. STEP 4 STEP RD0E74 Remove the range transmission control valve as follows:. Tag and remove the regulated supply tube (). RD0E76 Remove speed transmission control valve as follows:. Tag the wire harness connectors to the solenoids and pressure sensor () and disconnect.. Tag and disconnect the wire harness from the solenoid ().. Remove the mounting bolts (4), valve body, and gasket. Discard the gasket.. Remove the valve supply tube ().. Remove the valve retaining bolts, valve body, and gasket. Discard the gasket. -

Disassembly SECTION - TRANSMISSION CONTROL VALVES AND INCHING VALVE - CHAPTER 7 NOTE: Disassembly of range valve shown. Other valves are similar.

12 Disassembly SECTION - TRANSMISSION CONTROL VALVES AND INCHING VALVE - CHAPTER 7 NOTE: Disassembly of range valve shown. Other valves are similar. STEP 7 NOTE: Only the speed control valve is equipped with a pressure sensor. STEP 5 RD0E Remove the solenoid cover plate. Remove the solenoid assembly and discard the O-rings. Place the valve on a clean surface. RD0E STEP 8 Repeat for the remaining solenoids. STEP 6 RD0E Remove the park lock solenoid nut and coil and cartridge. Remove and discard the O-rings. -

SECTION - TRANSMISSION CONTROL VALVES AND INCHING VALVE - CHAPTER 7 Assembly STEP 0 NOTE: Assembly of the range control valve shown. Other valves are similar.

STEP 9 RD0E Install new O-rings on the cartridge. Install the cartridge into the valve body. Tighten to a torque of 9 to 5 Nm (4 to 8 lb ft).

13 SECTION - TRANSMISSION CONTROL VALVES AND INCHING VALVE - CHAPTER 7 Assembly STEP 0 NOTE: Assembly of the range control valve shown. Other valves are similar. NOTE: Only the speed control valve is equipped with a pressure sensor. See Figure - Transmission Control Valve with Four Solenoids for pressure sensor location. STEP 9 RD0E Install new O-rings on the cartridge. Install the cartridge into the valve body. Tighten to a torque of 9 to 5 Nm (4 to 8 lb ft). Install new O-rings on the coil and install the coil onto the cartridge. Tighten the retaining nut to a torque of 6 to 8 Nm (4 to 6 lb ft). Install a new O-ring on the plug. Install the plug to a torque of 4 to 54 Nm (5 to 40 lb ft). RD0E Install new O-rings on the solenoid/ Install the solenoid into the valve body. Repeat for the remaining solenoids. Install the cover plate and retaining bolts. Tighten the bolts to a torque of 6 to 8 Nm (4 to 6 lb ft). -

SECTION - TRANSMISSION CONTROL VALVES AND INCHING VALVE - CHAPTER 7 Valve Installation STEP STEP RD0E74 Install the range transmission control valve as follows:.

4. Connect the regulated supply tube (). RD0E76 Install the speed transmission valve as follows:. Install a new gasket and the valve.

STEP 4 RD0E75 Install the odd-even transmission control valve as follows:. Install a new gasket and the valve.

14 SECTION - TRANSMISSION CONTROL VALVES AND INCHING VALVE - CHAPTER 7 Valve Installation STEP STEP RD0E74 Install the range transmission control valve as follows:. Install a new gasket and the valve.. Tighten the M8 socket head mounting bolt () to a torque of 7 to Nm (0 to 4 lb ft).. Connect the wire harness to the solenoids (). 4. Connect the regulated supply tube (). RD0E76 Install the speed transmission valve as follows:. Install a new gasket and the valve.. Tighten the M8 socket head mounting bolts to a torque of 7 to Nm (0 to 4 lb ft).. Connect the wiring harness to the pressure sensor and solenoids (). 4. Connect the supply tube (). STEP 4 RD0E75 Install the odd-even transmission control valve as follows:. Install a new gasket and the valve.. Tighten the M8 socket head mounting bolts (4) to a torque of 7 to Nm (0 to 4 lb ft).. Connect the wire harness to the solenoids (). 4. Connect the regulated pressure tube (). Connect the park lock and if equipped, the MFD tubes (). -4

Removal SECTION - TRANSMISSION CONTROL VALVES AND INCHING VALVE - CHAPTER 7 INCHING VALVE STEP 4 STEP 5 RI0E086 The inching valve () is located under the range transmission valve ().

15 Removal SECTION - TRANSMISSION CONTROL VALVES AND INCHING VALVE - CHAPTER 7 INCHING VALVE STEP 4 STEP 5 RI0E086 The inching valve () is located under the range transmission valve (). Raise or remove the cab for access to the valves See Cab Raise/Removal and Installation information for procedure. RD0E74 Remove the inching valve as follows:. Tag and remove the regulated supply tube ().. Tag and disconnect the wire harness from the range valve solenoids().. Remove the mounting bolts (), range valve, and gasket. Discard the gasket. 4. Tag and remove the hydraulic tubes from the inching valve. 5. Disconnect the wire harness from the inching valve solenoid. 6. Remove four attaching bolts for the inching valve. 7. Remove the inching valve and mounting gasket. Discard the gasket. -5

SECTION - TRANSMISSION CONTROL VALVES AND INCHING VALVE - CHAPTER 7 Disassembly STEP 6 STEP 8 56-4 57-0 Place the inching valve on a clean work surface. Remove plug.

16 SECTION - TRANSMISSION CONTROL VALVES AND INCHING VALVE - CHAPTER 7 Disassembly STEP 6 STEP Place the inching valve on a clean work surface. Remove plug. Remove solenoid cartridge. NOTE: The solenoid cartridge is not designed to be disassembled. STEP 7 STEP Remove nut, two O-rings and coil from the solenoid assembly. 57- Remove plug. -6

17 SECTION - TRANSMISSION CONTROL VALVES AND INCHING VALVE - CHAPTER 7 STEP 0 STEP Remove the plug Remove the plug, spring and modulator spool assembly. NOTE: Parts of the modulator spool assembly are not serviced separately. -7

18 SECTION - TRANSMISSION CONTROL VALVES AND INCHING VALVE - CHAPTER 7 Assembly VALVE BODY 9. O-RING 4. SLEEVE. M8 PLUG. O-RING 5. BALL. O-RING. O-RING 6. SPRING 4. M7 PLUG. O-RING 7. SPRING 5. O-RING 0. M4 PLUG 8. M4 PLUG 6. CARTRIDGE. O-RING 9. O-RING 7. COIL. SPOOL 5. GASKET 8. NUT. MODULATOR PISTON 6. SOCKET BOLT RT98C00-8

and spring. Install a new O-ring on plug.

to 40 lb ft). STEP STEP 6 57-5 57-6 Install a new O-ring on plug.

Tighten the plug to a torque of 4 to 54 Nm (5 to 40 lb ft).

STEP 4 STEP 7 56-4 57-8 Install a new O-ring on the plug.

19 SECTION - TRANSMISSION CONTROL VALVES AND INCHING VALVE - CHAPTER 7 STEP STEP Install the inching modulator spool assembly and spring. Install a new O-ring on plug. Install plug in valve body and tighten to a torque of 4 to 54 Nm (5 to 40 lb ft). STEP STEP Install a new O-ring on plug. Install plug. Tighten the plug to a torque of 4 to 54 Nm (5 to 40 lb ft). Install a new O-ring on plug. Install plug in valve body and tighten to a torque of 4 to 54 Nm (5 to 40 lb ft). STEP 4 STEP Install a new O-ring on the plug. Install plug. Tighten the plug to a torque of 4 to 54 Nm (5 to 40 lb ft). Install new O-rings on the solenoid cartridge. -9

SECTION - TRANSMISSION CONTROL VALVES AND INCHING VALVE - CHAPTER 7 Installation STEP 8 STEP 57-0 Install the solenoid cartridge and tighten to a torque to to 8 Nm (9 to lb ft).

20 SECTION - TRANSMISSION CONTROL VALVES AND INCHING VALVE - CHAPTER 7 Installation STEP 8 STEP 57-0 Install the solenoid cartridge and tighten to a torque to to 8 Nm (9 to lb ft). RD0E74 Install the inching valve and range transmission control valve as follows: STEP 9. Install a new inching valve gasket on top of the range transmission. Install the inching valve and four retaining bolts. Tighten the bolts to a torque of 50 to 60 Nm (7 to 44 lb ft).. Install a new gasket on top of the inching valve and install the range transmission control valve. Install the M8 socket head bolts () and tighten to a torque of 7 to Nm (0 to 4 lb ft).. Connect the Hydraulic tubes to the inching valve. 4. Connect the wire harness to the inching valve solenoid Connect the wire harness to the range valve solenoids (). Instal new O-rings on both ends of coil. Install over the solenoid cartridge. Make sure the connector on the coil is facing outward. 6. Connect the regulated supply tube () to the range valve. STEP 0 STEP Install or lower the cab as shown in the Cab Raise/ Removal and Installation procedure Install the nut and tighten to a torque to 5 to 8 Nm (4 to 6 lb ft). -0

21 SECTION - TRANSMISSION CONTROL VALVES AND INCHING VALVE - CHAPTER 7 Inching Valve Cross Section VALVE BODY 7. SPRING. PLUG 8. SPRING. SOLENOID 9. PLUG 4. INCHING SPOOL 0. INCHING MODULATOR SPOOL ASSEMBLY 5. BALL. MODULATOR ASSEMBLY PISTON 6. RETAINING SLEEVE. PLUG 07AA.WMF -

Section 35 Chapter 3 PTO AND DIFFERENTIAL LOCK VALVE NH

Section 35 Chapter 3 PTO AND DIFFERENTIAL LOCK VALVE NH Section 5 Chapter PTO AND DIFFERENTIAL LOCK VALVE 6-1740NH TABLE OF CONTENTS SPECIAL TORQUES... 5-2 SPECIFICATIONS... 5-2 PTO AND DIFFERENTIAL LOCK VALVE... 5- Troubleshooting... 5- Removal... 5-4 Disassembly...