MF30B Tractor, Loader & Backhoe

Massey Harris Massey Ferguson Service Manual MF30B Tractor, Loader & Backhoe Service Manual THIS IS A MANUAL PRODUCED BY JENSALES INC. WITHOUT THE AUTHORIZATION OF MASSEY HARRIS MASSEY FERGUSON OR IT S SUCCESSORS. MASSEY HARRIS MASSEY FERGUSON 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. MH-S-MF30B TLB

MF 308 TRACTOR/LOADER/BACKHOE PART 1 - Important Procedures And Data PART 2 - Front Axle And Steering PART 3 - Diesel Engine PART 4 - Gasoline Engine PART 5 - Clutch PART 6 - Transmission PART 7 - Drive Axle And Brakes PART 8- PTO PART 9 - Internal Hydraulics PART 10 - Electrical System PART 11 - Loader PART 12 - Backhoe Form No. 1448 790 M1 Printed in U.S.A.

IMPORTANT PROCEDURES AND DATA SAFETY PRECAUTIONS 2 ROLL OVER PROTECTIVE STRUCTURES (ROPS) and/or SAFETY FRAMES............................ 3 SERVICE PROCEDURE RECOMMENDATIONS...................................................... 4 SPECIAL TOOLS................................................................................. 5 TIGHTENING TORQUE RECOMMENDATIONS (GENERAL GUIDE)... 5 PRODUCT CROSS REFERENCE FOR SEALANTS AND METHOD OF APPLYING........................ 6 Liquid Locking Metal Sealants................................................................... 6 CONVERTING UNITS OF WEIGHTS AND MEASURES............................................... 1 O Definition of Terms and Selection of Units... 1 O "Rounding-Off" Converted Units................................................................ 14 Conversions Between Units..................................................................... 15 CONVERSION TABLES... 18 How to Use Conversion Tables.................................................................. 18 Table 1 - Inches and Millimetres, Celsius and Fahrenheit... 19 Table 2 - Tightening Torques (ft.lbs to kg.m) - NOT "SI"... 20 Table 3 - Tightening Torques (kg.m to ft.lbs) - NOT "SI"... 20 Table 4 - Area (Square Inches to Square Centimetres)... 20 Table 5 - Area (Square Feet to Square Metres)... 21 Table 6 - Bending Moment or Torque (Inch Pounds to Newton Metres)... 21 Table 7 - Bending Moment or Torque (Foot Pounds to Newton Metres)... 21 Table 8 - Bending Moment or Torque (Kilogram-force-metre to Newton Metre)... 22 Table 9 - Force (Pounds-force to Newtons)... 22 Table 10 - Length (Microinches to Micrometres)... 22 Table 11 - Length (Hundredths of an Inch to Millimetre)... 23 Table 12 - Length (Inches to Millimetres)... 23 Table 13 - Mass (Pounds to Kilograms)... 23 Table 14 - Power (Horsepower to Kilowatts)... 24 Table 15 - Pressure or Stress (Pounds Per Square Inch to Kilopascals)... 24 Table 16 - Volume or Capacity (Cubic Inches to Cubic Centimetres)... 24 Table 17 - Volume or Capacity (Cubic Inches to Litres)... 25 Table 18 - Volume or Capacity (Cubic Feet to Cubic Metres)... 25 Table 19 - Volume or Capacity (Cubic Yards to Cubic Metres)... 25 Table 20 - Volume or Capacity (U.S. Fluid Ounces to Cubic Centimetres)... 26 Table 21 - Volume or Capacity (U.S. Liquid Pints to Litres)... 26 Table 22 - Volume or Capacity (U.S. Liquid Quarts to Litres)... 26 Table 23 - Volume or Capacity (U.S. Liquid Gallons to Litres)... 27-1- IMPORTANT PROCEDURES AND DATA

SERVICE PROCEDURE RECOMMENDATIONS The service repair procedures recommended within the various parts in this Manual are usually written assuming that the assembly to be repaired has been removed from Tractor. However, much of the servicing can be performed without complete removal of assembly... it will require judgment of serviceman to determine necessity of removal, while taking into consideration, degree and extent of servicing required. Following important points should be remembered and practiced. TROUBLE-SHOOT AND CLEAN TRACTOR BEFORE DISASSEMBLY. If possible, make a complete diagnosis to determine extent of repair which should be performed. Take all precautions as necessary to prevent dirt or other foreign material from entering. hydraulic, fuel and air system. DO NOT MIX PARTS. Be alert during disassembly to detect presence of special parts which should not be interchanged. INSPECT PARTS DURING DISASSEMBLY AND CLEAN THOROUGHLY. LABEL PARTS AND PROTECT PRECISION OR MACHINED SURFACES. DO NOT SUBSTITUTE PARTS. THE USE OF NON RECOMMENDED SUBSTITUTE REPLACEMENT PARTS MAY BE A SOURCE OF ADDED TROUBLE. Do not assume that if parts look alike, they are the same. The majority of parts have special properties known only by the manufacturer. They are the result of particular requirements established by extensive research and testing of complete Tractor through combined efforts of MF's engineering research and MF's service department field experience. There is a continual program to further improve existing parts. Many of these improvements cannot be detected by visual examination between old anci new items. Th!jlrefore, it is extremely important that only genuine MF replacement parts be used to repair an MF Tractor. -4-

PART 2 FRONT AXLE AND STEERING Testing and Trouble-Shooting...................................................................... 2 Checking Pump Pressure... 2 Symptom Chart.................................................................................. 3 Filling and Removing Air from System........................................................... 3 Engine-Driven Steering Pump...................................................................... 4 Pump Servicing (Gas Engine)... Refer to CS-55 Pump Servicing (Diesel Engine)... Refer to CS-48 Steering Control Unit (Hydrostatic Hand Pump)..................................................... 4 Removal/Installation............................................................................. 4 Servicing... Refer to CS-34 Steering Cylinders................................................................................. 6 Disassembly/Reassembly......................................................................... 6 Wheel Bearings and Seal........................................................................... 7 Spindle Bushings and Spindle...................................................................... 9 Toe-In Adjustment............................................................................... 9 Steering Axle and Support Casting... 10 Removal... 10 Installation... 10 Front Axle Beam... 11 Removal/Installation... 11 Pivot Pin Bushings... 12 CS-34 Steering Control Assembly CS-48 Steering Pump-Sames (Horizontal reservoir) CS-55 Steering Pump-Barnes (Vertical reservoir) This Part contains four separate sections, each beginning with Page 1 and Figure 1. A CAUTION: To avoid personal injury, use positive acting jacks, hoists and secure blocking when raising, lowering or supporting Tractor, Loader, Backhoe and components. -1- MF 20C and MF 308 FRONT AXLE and STEERING

-TESTING AND TROUBLE-SHOOTING FIG. 1 FIG. 3 CHECKING PUMP PRESSURE 1. Set parkin,g brake, then lower loader and backhoe to ground (or use supports and lock pins). 2. Connect a 2000 psi (minimum range) gauge into pump pressure line. Use "T" fitting ND-135-6.1, 1, adapter D31, 2, and hose assembly D19 HP, 3. Test fittings are from ND-112 kit. Fig. 1 shows connection for pump on gasoline engine models and Fig. 2 shows connection for pump on diesel engine models. NOTE: Be sure line is not contacting fan belt on diesel engine models. 3. Check oil level in reservoir, be sure it is filled to proper level with Permatran Lubricant. Start engine, turn wheels left to right without blowing relief valve to clear air from lines. Stop engine and recheck fluid level. 4. Start engine, turn wheels against stop to blow relief valve. Allow oil to reach 150 F and take reading. Pressure should be 1100-1200 psi at 2000 engine rpm. Stop engine and remove gauge. Reconnect lines and remove air from system or remove pump for repair. 5. Both pumps have an adjustable relief valve. On gasoline engine models, relief valve can be reached after removing cover and oil filter from pump. Fig. 3 shows relief valve adjusting screw location, 1. On diesel engine models, remove pump cover, loosen locknut, 1, and turn adjusting screw, 2, Fig. 4. Tighten lock nut and recheck pressure. Pump removal may be required to successfully install filter and spring. FIG. 2 FIG. 4-2-

PART 3 - DIESEL ENGINE INTRODUCTION............................. 2 General Information........................ 2 Engine Serial Number...................... 2 SPECIFICATIONS............................ 3 General Specifications..................... 3 Tightening Torques........................ 3 Engine Overhaul Specifications............. 3 Lubrication System Specifications.......... 6 Fuel System Specifications................. 6 Cooling System Specifications.............. 7 ENGINE REMOVAL AND INSTALLATION...ir,,... 8 Removing Engine.......................... 8 Installing Engine........................... 9 CYLINDER HEAD............................. 1 O Removing Cylinder Head................... 1 O Disassembling Cylinder Head... 11 Cylinder Head Inspection and Servicing.............................. 11 Valve Guides.............................. 11 Valves and Valve Seats..................... 12 Valve Springs.............................. 12 Tappets... 13 Rocker Arm Shaft Assembly................ 13 Disassemblfng and Inspecting Rocker Arm Shaft Assembly..................... 13 Reassembling Rocker Arm Shaft Assembly.......................... 13 Reassembling Cylinder Head............... 14 Installing Cylinder Head.................... 14 Retorquing Cylinder Head.................. 14 Adjusting Valve Lash....................... 15 TIMING CASE AND DRIVE... 16 Timing Gear Case.......................... 16 Removing Timing Gear Cover............ 16 Replacing Front Crankshaft Oil Seal....... 16 Installing Timing Gear Cover............. 16 Removing Timing Gear Housing.......... 17 Replacing Bottom Housing Cover......... 17 Installing Timing Gear Housing........... 17 Timing Gears.............................. 18 Timing Gear Backlash and End-Play....... 18 Removing Timing Gears.................. 18 Installing Timing Gears and Retiming Engine..................... 19 Camshaft.................................. 19 Removing Camshaft... 20 Installing Camshaft...................... 20 Tachometer Drive........................ 20 Checking Valve Timing... 20 PISTONS AND CONNECTING RODS... 21 Removing Piston/Connecting Rod Assembly... 21 Separating Piston from Connecting Rod... 21 Connecting Rods... 21 Connecting Rod Alignment... 21 Connecting Rod Bushing Replacement.... 22 Pistons and Rings.......................... 22 Piston... 22 Piston Rings... _ 22 Rejoining Piston to Connecting Rod............................ 23 Installing Piston/Connecting Rod Assembly............................. 24 CYLINDER BLOCK AND LINERS... 25 Inspecting and Servicing Cylinder Block and Liners........................... 25 Replacing Cylinder Liner................... 26 CRANKSHAFT AND MAIN BEARINGS... 27 Crankshaft End-Play........................ 27 Checking Crankshaft End-Play... :.. 27 Replacing Thrust Washers................ 27 Removing Crankshaft...................... 28 Inspecting Crankshaft... 28 Regrinding Crankshaft...................... 29 Installing Crankshaft....................... 30 Replacing Rear Crankshaft Oil Seal.......... 30 FLYWHEEL... 31 Replacing Ring Gear '.... 31 Installing Flywheel... 32 LUBRICATION SYSTEM... 33 Oil Pan... 33 Removing Oil Pan........................ 33 Installing Oil Pan... -................... 33 Oil Pump... 33 Oil Pump Idler Gear Backlash and End-Play................... 33 Removing Oil Pump...................... 34 Disassembling Oil Pump................. 34 Inspecting Oil Pump..................... 34 Reassembling Oil Pump.................. 35 Installing Oil Pump... 35 Replacing Oil Filter and Crankcase Oil....... 35 FUEL AND AIR SYSTEM...................... 36 Fuel Lift Pump............................. 36 Removing and Disassembling Fuel Lift Pump............................ 36 Reassembling and Installing Fuel Lift Pump........................... 36-1- MF 308 - DIESEL ENGINE

Replacing Fuel Filter Element...,... 36 High Pressure Injection Lines... 46 Fuel Injection Pump... 37 Air-Bleeding Fuel System... 46 Removing Injection Pump... 37 Air Cleaner... 47 Installing Injection Pump... 37 Servicing Outer Filter Element... 47 Checking and Adjusting Injection Servicing Inner Filter Element... 47 Pump Timing... 37 Adjusting Fuel Shut-Off Control... 38 COOLING SYSTEM... 48 Adjusting Engine Speed... 39 Water Pump... 48 Adjusting Throttle Linkage... 40 Removing Water Pump... 48 Fuel Injectors... 42 Disassembling Water Pump... 48 Removing Injectors... 42 Reasssembling Water Pump... 48 Installing Injectors... 42 Installing Water Pump... 49 Testing Injectors... 42 Thermostat................................ 49 Disassembling Injectors... 43 Replacing Thermostat... 49 Cleaning and Inspecting Injectors... 43 Testing Thermostat... 50 Reassembling Injectors... 45 Fan Belt... 50 Fuel Lines and Connections... 46 Low Pressure Fuel Lines... 46 TROUBLE-SHOOTING... 51 INTRODUCTION GENERAL INFORMATION This Part contains service information for PERKINS AD3.152 Direct Injection Diesel Engine. Throughly clean and inspect all components during servicing. Always plug open fuel and oil lines and fittings to prevent entry of dirt. Right and left-hand sides mentioned within text refers to engine as viewed from rear of flywheel. Direction of engine crankshaft rotation is viewed from crankshaft pulley end. SERIAL NUMBER WHEN ORDERING REPLACEMENT PARTS. ENGINE SERIAL NUMBER Engine Serial Number for AD3.152 Diesel Engine is located on right side of cylinder block near fuel lift pump, Fig. 1. ALWAYS GIVE COMPLETE ENGINE Fig. 1-Engine Serial Number-Right Side of Engine -2-

PART 4 - GASOLINE ENGINE INTRODUCTION.............................. 2 General Information......................... 2 Engine Serial Number....................... 2 SPECIFICATIONS............................. 3 General Specifications...................... 3 Tightening Torques......................... 3 Engine Overhaul Specifications.............. 4 Lubrication System Specifications........... 6 Fuel System Specifications.................. 7 Ignition System Specifications............... 7 Cooling System Specifications............... 8 ENGINE REMOVAL AND INSTALLATION.......................... 9 Removing Engine........................... 9 Installing Engine... 10 CYLINDER HEAD... 11 Removing Cylinder Head... 11 Disassembling Cylinder Head... 12 Cylinder Head Inspection and Servicing... 12 Valve Guides... 12 Valves and Valve Seats... 13 Servicing Valves and Valve Seats... 13 Replacing Exhaust Valve Seat Inserts... 14 Valve Springs, Seals, and Rotocaps... 14 Rocker Arm Shaft Assembly... 14 Disassembling and Inspecting Rocker Arm Shaft Assembly... 14 Reassembling Rocker Arm Shaft Assembly... 15 Reassembling Cylinder Head... 15 Installing Cylinder Head... 15 Retorquing Cylinder Head... 16 Adjusting Valve Lash... 16 TIMING COVER AND DRIVE... 17 Timing Gear Cover... 17 Removing Timing Gear Cover... 17 Replacing Front Crankshaft Oil Seal... 17 Servicing Governor Lever Assembly... 17 Installing Timing Gear Cover... 19 Timing Gears and Governor Assembly... 19 Timing Gear Backlash... 19 Removing Timing Gears and Governor Assembly... 20 Installing Timing Gears and Governor Assembly... 20 Camshaft... 21 Camshaft End-Play... 21 Removing Camshaft and Tappets... 21 Inspecting Camshaft and Tappets... 21 Installing Camshaft and Tappets... 22 Checking Valve Timing...,. 22 PISTONS AND CONNECTING RODS... 23 Removing Piston/Connecting Rod Assembly... 23 Separating Piston from Connecting Rod... 23 Connecting Rods... 23 Connecting Rod Alignment... 24 Piston Pin and Piston Pin Bushing... 24 Piston and Rings... 24 Pistons... 24 Piston Rings... 25 Rejoining Piston to Connecting Rod... 26 Installing Piston/Connecting Rod Assembly... 26 CYLINDER BLOCK AND SLEEVES... 27 Inspecting and Servicing Cylinder Block and Sleeves... 27 Replacing Cylinder Sleeve... 27 CRANKSHAFT AND MAIN BEARINGS... 29 Crankshaft End-Play... 29 Removing Crankshaft... 29 Inspecting Crankshaft... 29 Regrinding Crankshaft... 30 Installing Crankshaft... 30 Rear Crankshaft Oil Seal... 32 Removing Rear Oil Seal... 32 Installing Rear Oil Seal... 32 FLYWHEEL... 33 Replacing Ring Gear... 33 Installing Flywheel... 33 LUBRICATION SYSTEM... 34 Oil Pan... 34 Removing Oil Pan... 34 Installing Oil Pan... 34 Oil Pump... 34 Oil Pump Drive Gear Backlash... 34 Removing Oil Pump... 34 Disassembling Oil Pump... 35 Inspecting Oil Pump... 35 Reassembling Oil Pump... 36 Installing Oil Pump... 36-1- MF 308 - GASOLINE ENGINE

Replacing Oil Filter... 37 Positive Crankcase Ventilation System... 37 FUEL AND AIR SYSTEM... 37 Air Cleaner... 37 Servicing Outer Filter Element... 37 Servicing Inner Filter Element... 38 Carburetor... 38 Removing Carburetor... 38 Disassembling Carburetor... 38 Servicing Carburetor... 41 Reassembling Carburetor... 41 Installing Carburetor... 42 Adjusting Choke Cable... 42 Adjusting Carburetor and Governor Control Linkage.................. 42 Adjusting Throttle Linkage.................. 43 IGNITION SYSTEM........................... 45 Distributor................................. 45 Removing Distributor.................... 45 Disassembling Distributor... 46 Reassembling Distributor... 48 Tachometer Drive Assembly... 49 Servicing Condenser and Breaker Point Assembly... 49 Installing Distributor and Setting Ignition Timing... 49 Ignition Coil...,... 50 Spark Plugs... 51 COOLING SYSTEM... 51 Water Pump... 51 Removing Water Pump... 51 Disassembling Water Pump... 5~ Reassembling Water Pump... 53 Installing Water Pump... 54 Thermostat... 54 Replacing Thermostat... 54 Testing Thermostat... 55 Fan Belt Tension... 55 TROUBLE-SHOOTING... 56 INTRODUCTION GENERAL INFORMATION This Part contains service information for CONTI NENTAL Z145 Gasoline Engine. Thoroughly clean and inspect all components during servicing. Always plug open fuel and oil lines and fittings to prevent entry of dirt. Right and left-hand sides mentioned within text refers to engine as viewed from rear of flywheel. Direction of engine crankshaft rotation is viewed from crankshaft pulley end. Cylinders are numbered (1-2-3-4) from crankshaft pulley end t9ward flywheel end of engine. Engine Serial Number for Z145 Gasoline Engine is located on left side of cylinder block just above distributor, Fig. 1. ALWAYS GIVE COMPLETE ENGINE SERIAL NUMBER WHEN ORDERING REPLACEMENT PARTS. ENGINE SERIAL NUMBER Fig. 1 - Engine Serial Number Location -2-

SERVICING CLUTCH ASSEMBLY Fig. 8 - Removing/Installing "T" Bolts REMOVING CLUTCH 1. Punch mark clutch cover and flywheel, so marks can be aligned on installation to maintain original balance. 2. Install special "T" bolts with nuts and flatwashers through holes in clutch cover, Fig. 8. NOTE: Each "T" bolt can be made from a piece of 114 inch "ready bolt" approximately six inches long with a three inch piece of 1 /4 inch rod welded to one end. 3. Tighten "T" bolt nuts evenly to depress release levers. 4. Alternately loosen capscrews, and remove clutch cover assembly, primary friction disc and air ring from flywheel, Fig. 9. DISASSEMBLING CLUTCH 1. Punch mark clutch cover, secondary pressure plate, false flywheel plate and primary pressure plate, Fig. 9 - Removing/Installing Dual Clutch Fig. 10 - Dual Clutch - Parts Sequence 1. Torsion Spring (3) 2. Retainer Pin (3) 3. Fulcrum Pin (3) 4. Release Lever, Adjusting Screw and Lock Nut (3) 5. Clutch Cover 6. Belleville Spring 7. Secondary Pressure Plate 8. Secondary Friction Disc - 9" 9. False Flywheel Plate 10. Release Lever Links (6) 11. Upper Pivot Pin and Cotter Pin (3) 12. Spacer (3) 13. Lower Pivot Pin (3) 14. Secondary Clutch Adjusting Screw and Lock Nut (3) 15. Coil Spring (12) 16. Insulating Washer (12) 17. Primary Pressure Plate 18. Primary Friction Disc - 11" 19. Air Ring 20. Clutch Mounting Capscrew and Lockwasher (6) Fig. 10, so marks can be aligned on reassembly to maintain original balance. 2. With "T" bolts compressing clutch, unhook release lever torsion springs, Fig. 11. 3. Back off "T'' bolt nuts evenly until it is possible to drive release lever fulcrum pin retainer pins down, Fig. 12, sufficiently to remove release lever fulcrum pin. NOTE: Do not attempt to drive retainer pin completely out of cover assembly. Pins can be removed very easily once cover has been removed from clutch assembly. 4. Remove release lever fulcrum pins, Fig. 13, and torsion springs. 5. Loosen nuts on "T" bolts evenly until coil springs are fully extended and cover is free. -5- MF 308 - CLUTCH

PART 6 - TRANSMISSIONS SERVICE INFORMATION......................................................................... 2 TESTING AND ADJUSTING INSTANT REVERSE TRANSMISSION (HYDRAULIC SHUTTLE)........... 4 REMOVING/INSTALLING TRANSMISSION ASSEMBLY............................................. 6 Separating/Connecting Engine and Transmission................................................ 6 Separating/Connecting Transmission and Center Housing....................................... 9 REMOVING/INSTALLING TORQUE CONVERTER... 12 SERVICING MANUAL SHUTTLE TRANSMISSION - WITH PTO...*Refer to Separate Publication CS-22 SERVICING MANUAL SHUTTLE TRANSMISSION - WITHOUT PTO INPUT SHAFT...*Refer to Separate Publication CS-45 SERVICING INSTANT REVERSE (HYDRAULIC SHUTTLE) AND TORQUE CONVERTER...*Refer to Separate Publication CS-44 TROUBLE,SYMPTOMS OF INSTANT REVERSE (HYDRAULIC SHUTTLE) *Refer to Separate Publication CS-44 *IMPORT ANT: This reference is a separate component service publication which contains disassembly, inspection and reassembly instructions after transmission has been removed. These instructions are filed under this divider... and are identified by their CS number printed in the lower right-hand corner on each odd numbered page (beginning with a Page 1 ). -1- MF 308 - TRANSMISSION

PART 7 - DRIVE AXLE AND BRAKES SPECIFICATIONS.................................................................................. 2 DRIVE AXLE IDENTIFICATION... 2 REAR WHEELS.................................................................................... 3 ROPS (ROLL-OVER PROTECTIVE STRUCTURE)....................................................... 3 AXLE HOUSING................................................................................... 4 Differential Lock Adjustment.................................................................... 5 Brake Adjustment.............................................................................. 5 Brake Disc Access............................................................................... 5 Axle Planetary... Refer to CS-47 Differential Lock... Refer to CS-47 Brakes... Refer to CS-47 DRIVE PINION REMOVAL... 6 DRIVE PINION INSTALLATION...................................................................... 7 Servicing... Refer to CS-53 DIFFERENTIAL ASSEMBLY - REMOVAL OR INSTALLATION... 8 Service and Bearing Pre-Load... Refer to CS-53 CENTER HOUSING...... 8 CS-47... Axle Planetary, Differential Lock and Brakes - Oil Immersed CS-53... Drive Pinion, Differential and Bearing Pre-Load NOTE: This Part Contains 3 sections of material, all beginning with Page 1 and Figure 1. A CAUTION: To avoid personal injury, use positive acting jacks, hoists and secure blocking when raising, lowering or supporting Tractor, Loader Backhoe and components. Refer to Loader and Bakhoe Parts in this manual for additional precautions. -1- MF 308 - DRIVE AXLE AND BRAKES

PART 9 - INTERNAL HYDRAULICS (3-POINT LINKAGE) SERVICE INFORMATION.... Special Tools and Test Fittings.... 3-Point Linkage.... Hydraulic Lift Cover.... 3-Point Linkage Controls.... Ferguson Hydraulic Pump.... TROUBLE-SHOOTING.... "Quick" Service Checks.... Trouble Symptoms.... 2 2 2 2 2 3 4 4 7 ADJUSTMENTS... 8 Lift Cover Adjustments - Prior to Installation... *Refer to Publication CS-41 Master Control Spring........................................................................... 8 "Final" Adjustments - Lift Covers WITHOUT Mounted Dashpot... 8 HYDRAULIC LIFT COVER... 11 Removal/Installation............................................................................ 11 Servicing Lift Cover WITHOUT Mounted Dashpot... *Refer to Publication CS-41 FERGUSON HYDRAULIC PUMP.................................................................... 12 Removal/Installation............................................................................ 12 Servicing Ferguson Pump WITH Mounted Servo-Valve... *Refer to Publication CS-43 *IMPORTANT This Part contains separate Component Service Publications (referred to as CS-_) with instructions that pertain to bench servicing of assemblies... AFTER they have been removed. These publications may be found under this same divider tab... immediately following this Part and are identified by the reference publication number printed in the lower right-hand corner of each odd numbered page. Instructions within this Part pertain to removal, reinstallation, trouble-shooting and "final" adjustments of assemblies related to the 3-point linkage system only. To obtain instructions for other systems (i.e.: steering, etc.) refer to the appropriate part of this Manual pertaining to system. -1- MF 308 - INTERNAL HYDRAULICS (3-POINT LINKAGE)

PART 10 - ELECTRICAL SYSTEM SPECIFICATIONS...,.. 2 BATIERY... 3 Conventional Battery........................ 3 Activating Dry Battery..................... 3 Servicing Battery......................... 3 Charging and Cleaning.................. 3 Checking State of Charge................ 4 Testing Battery........................... 4 Specific Gravity Cell Comparison Test........................ 4 Load Test.............................. 4 Full Charge Hydrometer Test............ 5 Maintenance-Free Battery.................... 5 Testing Maintenance:-Free Battery.......... 5 Charging Maintenance-Free Battery........ 6 Jump Starting with Auxiliary (Booster) Battery.......................... 6 ALTERNATOR... 7 Service Information.......................... 7 Alternator Precautions.................... 7 Alternator Operation...................... 7 Alternator Trouble-Shooting................. 7 Undercharged Battery..................... 7 Overcharged Battery...................... 10 Alternator Overhaul... 11 Alternator Disassembly.................... 11 Bearing Replacement and Lubrication... 12 Alternator Reassembly... 12 Alternator Component Testing and Servicing... 13 Rotor Checks............................ 13 Slip Ring Servicing....................... 14 Stator Checks............................ 14 Brush Holder and Regulator Check........ 14 Diode Trio Check........................ 15 Rectifier Bridge Check.................... 15 STARTER MOTOR... 16 Trouble-Shooting Starter Circuit... 16 Starter Circuit Inspection................. 16 Starter Motor No-Load Test... 16 Starter Motor Overhaul..................... 19 Starter Motor Disassembly............... 19 Field Frame Assembly.................... 20 Solenoid Assembly...................... 21 Starter Motor Cleaning and Lubrication... 22 Starter Motor Reassembly................ 22 Starter Motor Component Testing and Servicing................................ 23 Brushes and Brush Holders Inspection.... 23 Armature Checks and Servicing........... 23 Field Coil Checks......................... 23 Solenoid Checks......................... 24 Pinion Clearance......................... 24 WIRING DIAGRAMS............... 26-1- MF 308 - ELECTRICAL SYSTEM

A CAUTION: See "Safety Precautions" preceeding Loader Section, before attempting any repairs. BACKHOES HYDRAULIC SYSTEM INFORMATION - MF 52A and MF 54A BACKHOES............................. 2 System Flow..................................................................................... 2 Component Operating Characteristics............................................................. 2 TROUBLE-SHOOTING.............................................................................. 7 Trouble Symptoms... -......................................................................... 7 TESTS AND ADJUSTMENTS... 10 Operational Check of Backhoe... :........................................... 10 Operational Check of Swing...................................................................... 10 Checking and Adjusting Swing Cushioning (MF 54A)............................................... 12 Checking System Main Pressure.................................................................. 12 Testing Circuit Reliefs............................................................................ 12 Adjusting Circuit Reliefs.......................................................................... 13 Testing "Load Checks"............................................................................ 15 Testing for Valve Spool Leakage and Checking Spool Travel......................................... 15 Testing for Internal Leakage of Double-Acting Cylinders............................................. 15 CONTROL VALVES - SERVICING... 17 Service Information.............................................................................. 17 Disassembly..................................................................................... 17 Inspection....................................................................................... 17 Reassembly..................................................................................... 17 SWING CYLINDER REMOVAL AND INSTALLATION................................................... 23 Removing Rotary Cylinder........................................................................ 23 Installing Rotary Cylinder......................................................................... 25 ROTARY CYLINDER - MF PART NO. 729 829 M91.................................................. 26 Operation of Cushioning Mechanism.............................................................. 26 Servicing Rotary Cylinders in Place................................................................ 27 Complete Servicing of Rotary Cylinders............................................................ 29 ROTARY CYLINDER - MF PART NO. 708 714 M92... 37 Servicing Rotary Cylinder in Place... 37 Complete Servicing of Rotary Cylinder............................................................. 39 DOUBLE-ACTING CYLINDERS....................................................................... 45 Service Information.............................................................................. 45 Cylinders with Wire Retaining Ring... 46 Cylinders without Wire Retaining Ring... 50 EXTENDABLE DIPPERSTICK........................................................................ 53 Dipperstick Assembly............................................................................. 53 Cylinder Assembly............................................................................... 53 Form No. 1448 976 M3 PRINTED IN U.S.A. -1- MF-BACKHOE

MF LOADERS AND BACKHOES. SAFETY PRECAUTIONS 2 SERVICE INFORMATION....................................................................... 2 LOADERS HYDRAULIC SYSTEM INFORMATION - MF 32A, MF 34A AND MF 300A LOADERS................. 3 System Flow..................................................................................... 4 Component Location and Operating Characteristics................................................. 5 TROUBLE-SHOOTING.............................................................................. 13 Trouble Symptoms............................................................................... 1 3 TESTS AND ADJUSTMENTS........................................................................ 16. Checking and Adjusting System Main Pressure.................................................... 16 Testing and Adjusting Circuit Reliefs (Within Valve)... 17 Testing for Valve Spool Leakage and Checking Spool Travel......................................... 18 Testing "Load Checks"........................................................................ 18 Testing for Internal Cylinder Leakage.............................................................. 19 Checking Pump Efficiency (GPM).................................................................. 19 HYDRAULIC PUMP SERVICING... 21 Information..._... 21 Disassembly..................................................................................... 21 Inspection... 22 Reassembly..................................................................................... 22 "Breaking-In" New or Rebuilt Pump............................................................... 22 CONTROL VALVE SERVICING... 23 Information... 23 Disassembly..................................................................................... 25 Inspection...,.... 26.Reassembly..................................................................................... 28 DOUBLE-ACTING CYLINDERS... 29 Service Information.............................................................................. 29 Service Procedures... 29 OIL FILTERS... 37 Suction Filter - MF 32A and MF 34A Loaders..................................................... 37 Suction Filter - MF 300A Loader... 37 Return Filter...................................... 39 BACKHOES (See "Contents" page for Backhoes following Loader section) Form No. 1448 976 M3 Printed In U.S.A. -1- MF- LOADERS