Service Manual Service Manual 1320, 1520 and 1720 THIS IS A MANUAL PRODUCED BY JENSALES INC. WITHOUT THE AUTHORIZATION OF NEW HOLLAND OR IT S SUCCESSORS. NEW HOLLAND AND IT S SUCCESSORS ARE NOT RESPONSIBLE FOR THE QUALITY OR ACCURACY OF THIS MANUAL. TRADE MARKS AND TRADE NAMES CONTAINED AND USED HEREIN ARE THOSE OF OTHERS, AND ARE USED HERE IN A DESCRIPTIVE SENSE TO REFER TO THE PRODUCTS OF OTHERS. NH-S-1320+
FORD 1320-1520 AN 1720 TRACT S Repair Manual 40132030 SE 4602 FORD NEW HOLLAND, INC. NEW HOLLAND, PENNSYLVANIA
PART 1 ENGINE SYSTEMS MODELS 1320-1520-1720 ENGINE AND LUBRICATION SYSTEM A. DESCRIPTION AND OPERATION... 1 B. ENGINE OVERHAUL.............................................. 2 Chapter 2 COOLING SYSTEM A. DESCRIPTION AND OPERATION... 33 B. OVERHAUL...................................................... 34 Chapter 3 TROUBLE SHOOTING, SPECIFICATIONS AND SPECIAL TOOLS A. TROUBLE SHOOTING........................................... 41 B. SPECIFICATIONS................................................ 45 C. SPECIAL TOOLS................................................. 52 D. COMPRESSION TEST AND TOOLS................................ 53
------------PART 1 - ENGINE SYSTEMS------------ Figure 81 Valve Tappet Removal Model 1720 1. Tappets S 22391 Figure 83 Engine Front Plate Removal 1. Front Plate 2. Gasket Figure 82 Camshaft Removal - Model 1720 1. Tachometer Drive 4. Camshaft 2. Plate 5. Camshaft Gear 3. Governor Flyweight Assembly S 17988 NOTE: If the camshaft rear bearing is to be removed, separate the engine from the transmission clutch housing and remove the clutch, flywheel and engine rear plate. See "Separating the Tractor," Part 12. INSPECTION AND REPAIR 30 1. Place the camshaft in a set of V-blocks and check the runout using a dial indicator, Figure 84. Figure 84 Camshaft Runout Check 1. Dial Indicator Replace or straighten the camshaft if the runout is greater than.004 (0.1 mm). 2. Using a micrometer, measure the height of the camshaft lobes, Figure 85. Replace the camshaft if any of the cam lobes are worn to less than the following dimensions: Valve lobe... 1.326 in. (33.7 mm) Injection pump lobe.. 1.646 in. (41.8 mm)
--------------------------------CHAPTER2-------------------------------- Figure 99 Drive Belt Adjustment 1. Belt Deflection - 0.200 in. (5 mm) 5 22402 Figure 101 Thermostat Removal 1. Thermostat Housing 3. Thermostat 2. Spring 4. Gasket INSTALLATION Clean the gasket surfaces and install new gaskets as required. Installation of the thermostat generally follows the removal procedure in reverse. Figure 102 Checking Thermostat Operation 1. Thermometer 3. Thermostat 2. Feeler Gauge 5 16120 NOTE: Adjust the alternator belt adjustment to obtain.200 in. (5 mm) deflection with a force of 2.21bs (1 kg), Figure 99. Figure 100 Thermostat Housing Removal 1. Upper Radiator Hose 3. By-Pass Hose 2. Thermostat Housing Fill the radiator to the proper level with the correct grade and quantity of antifreeze mixture. Start the engine and run for several minutes and check for coolant leaks. 39
PART 2 FUEL SYSTE INJECTION PUMP A. DESCRIPTION AND OPERATION... 1 B. REMOVAL AND INSTALLATION................................... 3 C. TIMING AND GOVERNOR ADJUSTMENTS......................... 5 Chapter 2 INJECTORS A. DESCRIPTION AND OPERATION... 11 B. REMOVAL AND INSTALLATION................................... 12 C. OVERHAUL...................................................... 12 Chapter 3 TROUBLE SHOOTING, SPECIFICATIONS AND SPECIAL TOOLS A. TROUBLE SHOOTING............................................ 15 B. SPECIFICATIONS................................................ 18 C. SPECIAL TOOLS................................................. 19 D. FUEL INJECTION PUMP SPECIFICATIONS......................... 19
PART 3 ELECTRICAL SYSTEM WIRING, SWITCHES, GLOW PLUGS AND INSTRUMENTATION A. DESCRIPTION AND OPERATION... 1 B. OVERHAUL...................................................... 7 Chapter 2 BATTERY A. DESCRIPTION AND OPERATION... 11 B. MAINTENANCE AND TESTS...,.......................... 12 Chapter 3 STARTING SYSTEMS A. STARTING SYSTEM - DESCRIPTION AND OPERATION...,..... 19 B. STARTING MOTOR - OVERHAUL................................ 21 C. NEUTRAL START SWITCH - DESCRIPTION AND OPERATION...... 30 D. NEUTRAL START SWITCH - OVERHAUL... 31 E. KEY START SWITCH - DESCRIPTION AND OPERATION........... 35 F. KEY START SWITCH - OVERHAUL... 35
Chapter 4 CHARGING SYSTEM A. DESCRIPTION AND OPERATION... 39 B. PRELIMINARY CHECKS AND ELECTRICAL TESTS.................. 41 C. OVERHAUL...................................................... 42 Chapter 5 ENGINE FUEL STOP SOLENOID A. DESCRIPTION AND OPERATION.................................. 51 B. OVERHAUL...................................................... 52 Chapter 6 TROUBLE SHOOTING AND SPECIFICATIONS A. TROUBLE SHOOTING... 53 B. SPECIFICATIONS................................................ 54 ii
PART 4 CLUTCHES SINGLE CLUTCH A. DESCRIPTION AND OPERATION... 1 B. ADJUSTMENT................................................... 2 C. OVERHAUL...................................................... 2 Chapter 2 DOUBLE CLUTCH 1320-1520 A. DESCRIPTION AND OPERATION... 7 B. ADJUSTMENT... 7 C. OVERHAUL... 8 Chapter 3 DOUBLE CLUTCH 1720 A. DESCRIPTION AND OPERATION... 11 B. ADJUSTMENT................................................... 12 C. OVERHAUL...................................................... 12
Chapter 4 SERVICING CLUTCH RELATED COMPONENTS A. CLUTCH PILOT BEARING - DESCRIPTION AND OVERHAUL........ 15 B. CLUTCH RELEASE BEARING - DESCRIPTION AND OVERHAUL..... 15 C. CLUTCH LINKAGE COMPONENTS - OVERHAUL................... 16 Chapter 5 TROUBLE SHOOTING AND SPECIFICATIONS A. TROUBLE SHOOTING............................................ 19 B. SPECIFICATIONS................................................ 20 ii
--------------------------------CHAPTER2-------------------------------- 6. Inspect the hub spline for excess wear. 7. Inspect the cushioning springs for signs of wear or damage. If any damage to the disc is apparent, replace the clutch disc assembly. 10. Position the clutch pressure plate assembly on the flywheel and install the six mounting bolts, Figure 13. 11. Use alignment arbor FNH 00077 to align clutch disc with flywheel, Figure 13. 12. Tighten the six mounting bolts evenly to 25 Ibs. ft. (34 Nm). Figure 11 Double Clutch Assembly 1. Release Levers ASSEMBLY Reference - Figure 12 Assemble the clutch assembly in the following order: 1. Install one diaphragm spring (dome side away from flywheel) in clutch housing. 2. Install PTO pressure plate in clutch housing. 3. Install PTO clutch disc with long side of hub away from flywheel. 4. Install bottom half of clutch housing. 5. Install one diaphragm spring (dome side away from flywheel) in clutch housing. 6. Install transmission pressure plate in clutch housing. 7. Install release lever link and pin assemblies. 8. Install the three PTO clutch release bolts into the transmission pressure plate (finger tight only). 9. Install transmission clutch disc between the flywheel and pressure plate, long side of hub away from flywheel. MODEL 1320-1520 5 24172 Figure 12 Double Clutch Assembly 1. Clutch Disc Assy. 7. Diaphragm Spring (Trans. 1320-1520), (PTO 1320-1520), (PTO 1720) (Trans. 1720) 2. Pressure Plate 8. Clutch Cover - (Trans. 1320-1520), Outer (PTO 1720) 3. Diaphragm Spring (Trans. 1320-1520), (PTO 1720) 4. Clutch Cover - Inner 5. Clutch Disc Assy. (PTO 1320-1520) (Trans. 1720) 6. Pressure Plate (PTO 9. 10. 11. 12. 13. 14. 15. 16. Dowel Pin Dowel Pin Pin Release Lever Adjusting 80lt Link Adjusting 80lt Pin (1320-1520) 1320-1520) (Trans. 1720)
PART 5 TRANSMISSION SYSTEMS 9 x 3 GEAR TRANSMISSION MODEL 1320-1520 A. DESCRIPTION AND OPERATION... 1 B. OVERHAUL...................................................... 4 C. SHIFT LEVERS................................................... 12 Chapter 2 HYDROSTATIC TRANSMISSION MODEL 1320-1520 A. DESCRIPTION AND OPERATION... 15 B. OVERHAUL...................................................... 18 C. TROUBLE SHOOTING AND ADJUSTMENTS........................ 32 Chapter 3 HYDROSTATIC TRANSMISSION GEARBOX - MODEL 1320-1520 A. DESCRIPTION AND OPERATION.................................. 35 B. OVERHAUL...................................................... 36
Chapter 4 HYDROSTATIC TRANSMISSION CONTROL LINKAGE - MODEL 1320-1520 A. OVERHAUL AND ADJUSTMENTS................................. 43 Chapter 5 NON-SYNCHROMESH 12 x 4 GEAR TRANSMISSION - MODEL 1720 A. DESCRIPTION AND OPERATION.................................. 47 B. OVERHAUL...................................................... 47 C. SHIFT LEVER.................................................... 58 Chapter 6 SYNCHROMESH 12 x 12 SHUTTLE TRANSMISSION - MODEL 1720 A. DESCRIPTION AND OPERATION... 61 B. OVERHAUL...................................................... 62 C. SHIFT LINKAGE................................................. 76 Chapter 7 CREEPER GEAR OPTION MODEL 1720 A. DESCRIPTION AND OPERATION... 81 B. OVERHAUL...................................................... 83 ii
Chapter 8 TROUBLE SHOOTING AND SPECIFICATIONS A. TROUBLE SHOOTING... 85 B. SPECiFiCATIONS... 86 iii
PART 5 TRANSMISSION SYSTEMS 9 x 3 GEAR TRANSMISSION MODEL 1320-1520 A. DESCRIPTION AND OPERATION.... B. OVERHAUL.... 4 C. SHIFT LEVERS...,.... 1 12 A. DESCRIPTION AND OPERATION The standard 9 x 3 gear transmission is a three range gearbox with each range having three forward and one reverse speed, for a total of nine forward and three reverse speeds, Figure 1. Two gearshift levers control the operation of the transmission, Figure 2. The range selector lever (1), Figure 2, controls operation of the range transmission. Figure 2 Shift Levers 1. Range Shift Lever 2. Main Shift Lever The main shift lever (2), Figure 2, controls the three forward and one reverse speeds of the main transmission. Figure 1 9 x 3 Gear Transmission - Model 1320-1520 1. Main Transmission 2. Range Gearbox Gearbox The transmission housing is a part of a common oil reservoir which provides gear lubricant for the differential and transmission and hydraulic system. The oil used is Ford 134B or equivalent. The oil fill plug (1), Figure 3, is located on the rear of the hydraulic lift cover. The oil level check dipstick (2) is located on the transmission cover. 1
PART 6 POWER TAKE-OFF SYSTEMS POWER TAKE-OFF SYSTEMS MODEL 1320-1520 A. TRANSMISSION DRIVE POWER TAKE-OFF - DESCRIPTION AND OPERATION.... B. LIVE POWER TAKE-OFF - DESCRIPTION AND OPERATION... 2 C. POWER TAKE-OFF DRIVE - HYDROSTATIC TRANSMISSION - DESCRIPTION AND OPERATION... 2 D. POWER TAKE-OFF - OVERHAUL... 3 Chapter 2 MID-MOUNT POWER TAKE-OFF MODEL 1320-1520 A. DESCRIPTION AND OPERATION... ".... 7 B. OVERHAUL... 7 Chapter 3 POWER TAKE-OFF SYSTEMS MODEL 1720 A. TRANSMISSION DRIVE POWER TAKE-OFF - DESCRIPTION AND OPERATION... 11 B. LIVE POWER TAKE-OFF - DESCRIPTION AND OPERATION.................................. 12 C. POWER TAKE-OFF SYSTEM - OVERHAUL... 13
Chapter 4 SPECIFICATIONS A. SPECIFICATIONS................................................ 17 ii
PART 7 DIFFERENTIAL, REAR AXLE AND BRAKES DIFFERENTIAL, REAR AXLE AND BRAKES A. DESCRIPTION AND OPERATION... 1 B. OVERHAUL...................................................... 7 Chapter 2 SPECIFICATIONS A. SPECIFICATIONS........................................... 19
P RT 8 YDR ULIC SYSTE H DRAULI SYSTEM A. DESCRIPTION AND OPERATION.... B. OVERHAUL...................................................... 10 C. ADJUSTMENTS................................................. 21 LI apter 2 FI A. DESCRIPTION AND OPERATION... 25 B. OVERHAUL...................................................... 25 Chapter 3 REMOT VALVE A. DESCRIPTION AND OPERATION.................................. 29 B. OVERHAUL...................................................... 34 PRINTED IN U.S.A_
Chapter 4 TROUBLE SHOOTING, PRESSURE TESTING, SPECIFICATIONS AND SPECIAL TOOLS A. TROUBLE SHOOTING............................................ 39 B. PRESSURE TESTING............................................. 40 C. SPECIFICATIONS................................................ 43 D. SPECIAL TOOLS................................................. 43 ii
P STEERIN RT 9 SYSTEMS POWER STEERING SYSTEM A. DESCRIPTION AND OPERATION... 1 B. OVERHAUL... 5 Chapter 2 TROUBLE SHOOTING, TESTING AND SPECIFICATIONS A. TROUBLE SHOOTING............................................ 17 B. TESTING........................................................ 18 C. SPECIFICATIONS................................................ 20 D. SPECIAL TOOLS................................................. 21
PART 10 FRONT AXLE AND RELATED PARTS FRONT AXLE AND RELATED PARTS - TWO WHEEL DRIVE A. DESCRIPTION AND OPERATION... 1 B. OVERHAUL...................................................... 2 Chapter 2 FRONT AXLE AND RELATED PARTS - FOUR WHEEL DRIVE A. DESCRIPTION AND OPERATION... 7 B. OVERHAUL...................................................... 8 Chapter 3 TROUBLE SHOOTING AND DESCRIPTION A. TROUBLE SHOOTING... 21 B. SPECiFiCATIONS... 22
------------------~-----------CHAPTER2------------------------------- 5 22586 Figure 14 Front Axle - FWD (1320/1520) 1. Drain Plug Figure 16 Front Wheel Drive Axle - 1320/1520 Shown 1. Steering Arm and 2. Steering Arm and Cover - Right Cover - Left 7. Remove the bevel gear case and the drive pinion and shaft as an assembly, Figure 15. 8. Remove the final pinion gear cover (5), and remove the drive pinion gear and bearing as an assembly, Figure 15. 9. Remove the pinion shaft (6), Figure 15. 10. Remove the seal (3), and taper bearing (2), from the gear case, Figure 17. Figure 15 Gear Reduction Drop Box Disassembly - 1320/1520 Shown 1. Case Cover Bolts 5. Pinion, Bearing and 2. Case Cover Cover Assembly 3. Wheel Hub 6. Pinion Shaft 4. Wheel Hub, Cover 7. Bevel Gear Case and Bevel Gear Assembly WARNING: The bevel gear case assembly (7), Figure 15, is free to disengage and fall away from the idler gear case when the cover bolts are removed. Use care to avoid accidental disengagement of the components. Uncontrolled dropping of the components may cause personal injury. 11. Remove the wheel hub shaft inner bearing (1) from the shaft and remove the bevel gear (2), Figure 18. 12. Remove the split ring (3), and gently drive the hub and shaft assembly out of the cover, Figure 18. 13. Remove the bearing (4) and oil seal (6) from the cover, Figure 18. 14. Remove the four idler gear case retaining bolts and remove the case and idler pinion from the axle housing, Figure 19. 15. Remove the axle drive pinion gear and O-Ring seal from the front axle housing. 16. Remove the bearing (6), king-pin (4), with the D ring (5), snap ring (3) and idler pinion gear (8) from the top of the idler case, Figure 19. 9
PART 11 WHEELS AND TIRES WHEELS AND TIRES A. TREAD SETTING................................................. 1 B. WEIGHT LIMITATIONS... 6 C. LUG NUT TORQUE............................................... 9
PART 12 SEPARATING THE TRACTOR SEPARATING THE TRACTOR A. FRONT AXLE REMOVAL.......................................... 1 B. SEPARATING THE TRACTOR BETWEEN THE FRONT AXLE SUPPORT AND ENGINE............................. 2 C. SEPARATING THE TRACTOR BETWEEN THE ENGINE AND TRANSMISSION CLUTCH HOUSING.................. 4 D. TRANSMISSION REMOVAL AND INSTALLATION... 6 E. REAR AXLE AND CENTER HOUSING REMOVAL AND INSTALLATION............................................. 12 F. REAR AXLE HOUSING REMOVAL AND INSTALLATION... 14 Chapter 2 SPECIFICATIONS A. SPECIFICATIONS................................................ 15