John Deere MODEL: 301 & 401 Tractor & Loader THIS IS A MANUAL PRODUCED BY JENSALES INC. WITHOUT THE AUTHORIZATION OF JOHN DEERE OR IT'S SUCCESSORS. JOHN DEERE 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. JD-S-TM1034
301-401 Tractors and Loaders TECHNICAL MANUAL 301-401 Tractors and Loaders TM 1034 (01 AUG? 4) English John Deere Dubuque Works TM1034 (01 AUG74) LITHO IN U.S.A. ENGLISH
JD301-JD401 Tractors and Loaders TECHNICAL MANUAL TM-1034 (Feb-74) 1 CONTENTS Section 10 - GENERAL Group 5 - Specifications Group 10 - Predel ivery, Delivery, and After-Sales Services Group 15 - Tune-Up Group 20 - Lubrication Group 25 - Tractor Separation Section 20 - ENGINE Group 5 - Diagnosis Group 10 - Basic Engine Group 15 - Lubrication System. Group 20 - Governor and Speed Control Linkage Group 25 - Cooling System. Gro'up 30 - Specifications and Special Tools Section 30 - FUEL SYSTEM Group 5 - Diagnosis Group 10 - Fuel Tank, Transfer Pump, and Filters Group 15 - Air Intake System Group 20 - Carburetor Group 2.5 - Fuel Injection Pump (Fuel Injection Nozzlesrefer to SM-2045). Section 40 - ELECTRICAL SYSTEM Group 5 - Wiring Diagrams Group 10 - Charging System Group 15 - Starting Motor Group 20 - Ignition System Group 25- Gauges and Switches The specifications and design information contained in this manual were correct at the time it was printed. It is John Deere's policy to continually improve and update our machines. Therefore, the specifications and design information are subject to change without notice. Wherever applicable, specifications and design information are in accordance with SAE and IEMe standards. Section 50 - POWER TRAI N Group 5 - Diagnosis Group 10 - Clutch Assembly Group 15 - Transmission Group 20 - Reverser Group 25 - Hi-Lo Shift Unit Group 30 - Continuous Running and Transmission -Driven PTO Systems Group 35 - Independent PTO Group 40 - Differential Group 45 - Final Drives Section 60 - STEERI NG AND BRAKES Group 5 - Hydraulic Brakes Group 10 - Manual Steering System Group 15 - Power Steering System Section 70 - HYDRAULIC SYSTEM Group 5 - General Information, Testing, and Diagnosis Group 10 - Hydraulic Pump Group 15 - Hydraulic Components Group 20 - Rockshaft System Group 25 - Selective Control Valve Group 30-7310 Loader Control Valve Group 35 - JD401-A Loader Control Valve Group 40 - Backhoe Control Valve Group 45 - Hydraulic Cylinders Section 80 - MISCELLANEOUS COMPONENTS Group 5 - Front End Support and Axle Assembly Group 10-7310 Loader Frame, Boom and Bucket Group 15 - Drott4-in-1 Bucket Group 16 - Backhoe Frame, Boom and Bucket (JD401-A only) Group 20 - Specifications and Special Tools Index
TM-1034 (Jul-73) General 10 Specifications 5-1 Section 10 GENERAL CONTENTS OF THIS SECTION Page Group 5 - SPECIFICATIONS Machine Specifications... 5-1 Dimensions............................ 5-2 Group 10 - PREDELIVERY, DELIVERY, AND AFTER-SALES SERVICES Predelivery... 1 0-1 Delivery.............................. 10-3 After-Sales Services... 10-4 Group 15 - TUNE-UP Preliminary Engine Testing... 15-1 Engine Tune-Up... 15-1 Final Engine Testing.................... 15-3 Unit Tune-Up... -... 15-3 Page Group 20 - LUBRICATION Lubrication Chart... _............. 20-1 Engine Lubricating Oils... _. _.. _ 20-2 Transmission-Hydraulic Oil.. _. _... 20-2 Greases... _... _.. _.. 20-2 Storing Lubricants... _. _... 20-2 Group 25 - TRACTOR SEPARATION Removing and Installing Front End Assembly... _.......... 25-1 Removing and Installing Engine... 25-2 Removing and Installing Clutch Housing... 25-3 Removing and Installing Axle Assemblies.. _ 25-5 Removing and Installing 7310 Loader... 25-6 Removing and Installing JD401-A Loader... 25-7 Removing and Installing 9250 Backhoe... 25-8 Specifications.. _... _..... 25-9
10 General 25-8 Separation TM-1034 (Aug-72J REMOVING AND INSTALLING 9250 BACKHOE (JD401-A) 1-Main Frame (Tipped Slightly Forward) 2-Crowd Cylinder (Retracted) Fig. 14-Backhoe in Separation Position 3-Bucket Cylinder (Retracted) 4-5tabilizer Cylinders (Extended) By using the backhoe hydraulic system, the backhoe can be easily detached to free the loader for other jobs. Lower the stabilizers until they are supporting the weight of the backhoe. Retract the bucket and dipperstick and extend boom cylinder until backhoe is fully extended and bucket is resting on the ground. Install swing locking pin in place to prevent any tipping action. Remove the cotter pins and mounting pins which hold the tie bars to the loader side frames. Remove the cotter pins and mounting pins which hold the main frame to the loader side frames. After the tie bar pins and the main frame pins are removed, retract the stabilizers until the main frame is resting on the ground tilted slightly forward (Fig. 14). A CAUTION: Relieve pressure in the closed.. center hydraulic system before disconnecting hoses. With the engine shut off, operate the backhoe or steering controls to relieve pressure in the system. Disconnect the pressure and return hoses from the backhoe main frame. Remove the plugs from the dead-end block and connect the pressure and return hoses to the block. This must be done before the tractor is moved. Use the plugs removed from the dead-end block to plug the fittings in the backhoe main frame. Carefully drive the tractor from the backhoe, taking care that the tie bars clear the fenders. Installation I MPORTANT: Relieve pressure in the closedcenter hydraulic system before removing hoses from the dead-end block. With engine shut off, operate the steering controls to relieve pressure in the system. Attach the pressure and return hoses to the backhoe main frame. Carefully raise the backhoe main frame with the hydraulic system by extending the stabilizers. Carefully back the tractor to align the tractor attaching points with the main frame. Secure each side of main frame to tractor with pins and cotter pins. Position tie bars on loader side frames, and secure each with pins and cotter pins.
TM-1034 (Jul-73) GENERAL INFORMATION Oil Filter Engine 20 Lubrication System 15-1 Group 15 LUBRICATION SYSTEM The oil filter is mounted on the right side of the cylinder block. It is a full-flow type with a spin-on type replaceable element. If the filter clogs, a bypass valve in the element opens to keep a full flow of oil to vital engine parts. DIAGNOSING LUBRICATION SYSTEM MALFUNCTIONS Checking Engine Oil Pressure If oil pressure indicator continues to show low oil pressure -(glows red) after engine has been running for 10 seconds, the engine should be stopped and cause of low oil pressure determined. (See below and Group 10 for further lubrication system diagnosis.) If indicator shows low oil pressure at any time while engine is being operated, the same procedure should be followed immediately. T22084 A-Pump B-Pressure Regulating Valve Oil Pump Fig. 1-Engine Lubrication System C-Oil Filter Oil enters the pump from the rear through the pump intake tube, and is discharged at the oil outlet hole into an oil tube leading to the oil filter and engine oil gallery. An externally adjustable pressure regulating valve is located at fan end of cylinder block in the oil gallery. It regulates oil before it enters the oil filter and maintains a constant oil pressure in the engine oil gallery. The valve assembly consists of a valve body held against a seat by a spring and plug. Pressure may be adjusted by changing the number of shims behind the valve plug. When oil pressure is greater than the valve setting, oil is bypassed to the crankcase and desired pressure is maintained. Fig. 2-Checking Oil Pressure with Master Gauge Check Oil Pressure as Follows: I nstall master gauge (Fig. 2). With engine warmed up and running at 2500 rpm, oil pressure reading should be 45 to 65 psi at 180 0 to 220 F. If pressure does not register within acceptable range, adjust oil pressure (see "Adjusting Oil Pressure," page 15-4).
20 20-4 Engine Governor and Speed Control Linkage REPAIR SPEED CONTROL LINKAGE TM-1034 (Sep-71 ) For speed control linkage diagnosis, see "Diagnosing Malfunctions" in this group. Refer to Figs. 5, 6, 7, 8 and 9 for relative position of speed control linkage parts. Inspect linkage parts for broken or cracked rods and arms. Check for binding, looseness, or any condition that might cause poor engine performance. When installing speed control arm (22, Fig. 5), check that spring pin (10) protudes approximately 1/16-inch on each side. @ t 16 1-Knob 2-Lever 3-Bushing (2 used) 4-Speed Control Lever Disk (2 used) S-Groove Pin (2 used) 6-Facing (2 used) 7-Washer 8-Stop 9-Speed Control Shaft Arm 10-Spring Pin 11-Nut 12-Cap Screw 13-Spring 14-Speed Control Rod 1S-Speed Control Shaft 16-Washer (2 used) Fig. 5-Hand Speed Control Linkage 17-Cotter Pin (2 used) 18-Clevis Pin 19-5pring Pin 20-Locking Cap 21-Bushing (2 used) 22-Speed Control Arm 23-Speed Control Rod
TM-1034 (Jan-71) Electrical System 40 Ignition System 20-1 Group 20 IGNITION SYSTEM GENERAL INFORMATION The distributor is mounted in a well on the right side of the engine 'and is driven by the camshaft at onehalf engine speed. DIAGNOSING MALFUNCTIONS Contact Points Burned Check for high voltage, presence of oil or other foreign material, defective condenser, or improper paint. adjustment. Oil or crankcase vapor working up into the distributor can be caused by a clogged breather pipe (indicated by a smudgy line under the contact points). Overoiling also causes burned points. DISTRIBUTOR High Voltage Causing Excessively High Current Flow Check for faulty voltage regulator or shorted bypass resistor. Engine Misfires Contact point opening too small (cam angle too large). causing excessive arcing and point burning. Defective spark plugs or spark plug leads. Loss of Engine Power Worn contact points or worn rubbing blocks. Engine Misfires At Idle or Under Load High voltage leakage to ground. Check distributor cap for cracks, chips, and carbonized paths. Check for loose leads in cap towers which can result in heat and arcing, causing towers to erode and provide a path for leakage. Check for damaged rotor. DISTRIBUTOR TESTS Check for proper cam angle by using a dwell meter. Follow manufacturer's instructions. See "Specifications." Check for proper distributor timing. 1-Reference Mark 2-Clamp Fig. 1-Distributor Reference Mark Place a reference mark on distributor and cylinder block to facilitate installation (Fig. 1). Set engine on "top dead center." See Group 10 of Section 20. Remove distributor cap to note position of rotor. Remove distributor. Mount the distributor on a synchrograph and follow the manufacturer's instructions to make the following tests: Contact point test - rotate chuck until contact points are closed. If reading on cam angle meter is not near the "SET" line, clean or replace the point assembly. Poor insulation or leakage test - revolve chuck by hand until points are open. Cam angle meter reading should be zero. If not, a leak or partial ground exists. Common causes are poor primary terminal insulation, shorted condenser, poor insulation on breaker arm, or short between breaker arm and breaker plate. Breaker spring tension test - drive distributor shaft clockwise (viewed from drive end). Operate distributor at 1200 rpm. A faint flash of light preceding the regular flash indicates spring tension is weak or breaker arm is binding. See "Specifications."
TM-1034 (Sep-71) Power Train 50 Diagnosis 5-1 CONTENTS OF THIS SECTION Section 50 POWER TRAIN Page GROUP 5 - DIAGNOSIS f'ower Train Components................. 5-2 Diagnosing System Malfunctions... 5-3 GROUP 10 - CLUTCH ASSEMBLY Single Stage Clutch......... 1 0-1 Diagnosing Malfunctions... 10-2 Repair............................. 1 0-3 Adjustment......................... 10-5 Dual Stage Clutch...................... 1 0-6 Diagnosing Malfunctions... 10-2 Repair............................. 1 0-7 Adjustment..., 10-9 Clutch Housing and Controls... 1 0-1 0 Repair... 10-10 Adjustment... 10-12 Specifications........................ 1 0-14 Tools... '" 10-14 GROUP 15 - TRANSMISSION General Information..................... 15-1 Diagnosing Malfunctions... 15-2 Shi fter Mechanism......... 15-3 Shafts and Gears... 15-6 Tr~nsmission Oil Pump... 15-10 Specifications........................ 1 5-11 Special Tools... 15-12 GROUP 20 - REVERSER General Information... 20-1 Testing... 20-7 Diagnosing Malfunctions... 20-9 Removal... 20-10 Repair.............................. 20-11 Adjustment... 20-15 Specifications........................ 20-16 Tools........................ 20-16 Page GROUP 25 - HI-LO SHIFT UNIT General Information.................... 25-1 Testing and Diagnosis... 25-3 Repair............................... 25-5 Specifications........................ 25-10 GROUP 30 - CONTINUOUS RUNNING AND TRANSMISSION-DRIVEN PTe SYSTEMS General Information... 30-1 Diagnosing Malfunctions... 30-2 Removal... 30-3 Repair............................... 30-6 Specifications......................... 30-6 GROUP 35 - INDEPENDENT PTO General Information.................... 35-1 Testing... 35-3 Diagnosing Malfunctions... 35-3 Repair............................... 35-4 Specifications...,.......... 35-6 GROUP40 - DIFFERENTIAL General Information.................... 40-1 Diagnosing Malfunctions... 40-1 Repair... '......... 40-2 Assembly and Adjustment... 40-3 Specifications......................... 40-4 GROUP 45 - FINAL DRIVES General Information... 45-1 Diagnosing Malfunctions... 45-1 Repair............................ 45-1 Specifications......................... 45-2
50 Power Train 5-2 Diagnosis TM-1034 (Sep-71) Group 5 DIAGNOSIS 1-Reverse Brake Assembly 2-Forward Clutch Assembly 3-Clutch Shaft 4-PTO Drive Gears 5-Reverser Assembly 6-RearPTO 7-Differential Assembly 8-Transmission Assembly 9-PTO Drive Gears 10-Clutch Shaft Fig. 1-Power Train Components 11-Engine Flywheel and Clutch Assembly 12-MidPTO 13-PTO Driven Gears 14-Axie Assemblies 15-Hi-Lo Assembly 16-Clutch Shaft 17 -Hi-Clutch Assembly 18-Lo-Brake Assembly 19-PTO Drive Gears