MASSEY FERGUSON MF255 MF265 MF270 MF275 MF290 Shop Manual

Information and Instructions This shop manual contains several sections each covering a specific group of wheel type tractors. The Tab Index on the preceding page can be used to locate the section pertaining to each group of tractors. Each section contains the necessary specifications and the brief but terse procedural data needed by a mechanic when repairing a tractor on which he has had no previous actual experience. Within each section, the material is arranged in a systematic order beginning with an index, which is followed immediately by a Table of Condensed Service Specifications. These specifications include dimensions, fits, clearances and timing instructions. Next in order of arrangement is the procedures paragraphs. In the procedures paragraphs, the order of presentation starts with the front axle system and steering and proceeding toward the rear axle. The last paragraphs are devoted to the power take-off and power lift systems. Interspersed where needed are additional tabular specifications pertaining to wear limits, torqueing, etc. HOW TO USE THE INDEX Suppose you want to know the procedure for R&R (remove and reinstall) of the engine camshaft. Your first step is to look in the index under the main heading of ENGINE until you find the entry “Camshaft.” Now read to the right where under the column covering the tractor you are repairing, you will find a number that indicates the beginning paragraph pertaining to the camshaft. To locate this wanted paragraph in the manual, turn the pages until the running index appearing on the top outside corner of each page contains the number you are seeking. In this paragraph you will find the information concerning the removal of the camshaft.

SHOP MANUAL MASSEY-FERGUSON MODELS MF255 - MF265 - MF270 - MF275 - MF290 Tractor serial number Is stamped on a name plate attached to the Instrument console. Engine serial number Is stamped on the side of engine cylinder block. INDEX (By Starting Paragraph) MF255 MF265 MF210 MFZ75 MF290 MF255 MF265 I'IF21O MF275 MF290 BRAKES ENGI~ (CONT.) Adjustment .. ...... .. . 190 190 191 190 191 Engine Balancer . . . .... 34 34 Bleeding ......... .. .. 192 192 Oil Pump ...... .. .. . .. 40 40 Brake Discs . . . . . . . . . . . 193 193 193 193 193 Pistons, Sleeves & Rings 30 30 Master Cylinders .. ... . 195 195 Timing Gear ........ .. 19 19 Slave Cylinders ........ 196 196 FRONT AXLE ....... .. 1 1 1 1 1 CLUTCH (Engine) FUEL SYSTEM (Diesel) Adjustment ... ... .. ... 147 147 147 147 147 Fuel Filter & Bleeding . . ll4 ll4 ll4 ll4 ll4 Dual Clutch .. ......... 149 149 149 149 149 Fuel Lift Pump .. ...... ll6 ll6 ll6 ll6 ll6 Split Thrque Clutch .... 152 152 152 152 152 II\i ector Nozzles ....... ll7 ll7 117 ll7 ll7 Tractor Split ... . ...... 148 148 148 148 148 II\iection Pump ... ..... 125 125 125 125 125 COOLING SYSTEM FUEL SYSTEM (Gasoline) Radiator .............. 130 130 130 130 1 30 Carburetor ........... llO 110 Thermostat ........... 131 131 131 131 131 HYDRAULIC SYSTEM Water Pump . ......... 132 132 132 1 32 132 Auxiliary Hydraulic DIFFERENTIAL AND Pump ........ . ....... 230 230 230 230 230 BEVEL DRIVE GEARS Auxiliary Valve ........ 235 235 235 235 23 Bevel Drive Gears ..... 182 182 182 182 182 Checks & Adjustments .. 212 212 212 212 212 Differential ........... 177 177 177 177 177 Contol Quadrant ....... 217 217 217 217 217 Differential Lock .. ... . 1 80 180 180 180 180 Hydraulic Lift Pump ... 222 222 222 222 222 ENGINE (AD4.203 Diesel) Hydraulic 'Jesting .. . ... 240 240 240 240 240 Assembly, R&R ..... . .. 42 Lift Cover ......... ... 215 215 215 215 215 Camshaft ... ... . ...... 59 Reservoir & Filter ...... 210 210 210 210 210 Connecting Rods & Selector Valve ......... 220 220 Bearings ............ 63 Trouble-Shooting ...... 2ll 2ll 2ll 2ll 2ll Crankshaft & Bearings . 64 IGNITION AND Cylinder Head ... . .... 43 ELECfRICAL SYSTEM Oil Pump ............. 70 Alternator & Regulator . 137 137 137 137 137 Pistons, Sleeves & Rings 61 Distributor ........... 135 135 Timing Gears . .. .. .. . .. 52 Starting Motor ........ 144 144 144 144 144 ENGINE (A4.236 & Wiring Diagrams .. ..... 245 245 245 245 245 A4.248 Diesel) POWER STEERING Assembly, R&R ........ 75 75 75 75 75 Hydrostatic Hand Pump 8 8 8 8 8 Camshaft ............. 90 90 90 90 90 Lubrication & Bleeding . 3 3 3 3 3 Connecting Rods & Power Steering Pump .. 5 5 5 5 5 Bearings .. ........ .. 95 95 95 95 95 Steering Cylinder ...... 10 10 10 10 10 Crankshaft & Bearings . 96 96 96 96 96 POWER TAKE-OFF Cylinder Head . ... .. .. 76 76 76 76 76 (Independent) .. ...... 203 203 203 203 203 Engine Balancer ... . ... 99 99 99 99 99 POWER TAKE-OFF Oil Pump ...... . ...... 106 106 106 106 106 (Live) .... . ...... . .. . 200 200 200 200 200 Pistons, Sleeves & Rings 93 93 93 93 93 REAR AXLE AND Timing Gears .......... 83 83 83 83 83 FINAL DRIVE ENGINE (AG4.212 & Final Drive & Axle AG4.236 Gasoline) Housing ............ 188 188 188 188 188 Assembly, R&R .... . ... II 11 Wheel Axle & Planetary 185 185 185 185 185 Cams haft .' .......... .. 26 26 TRANSMISSION Connect Rods & Eight Speed .......... 159 159 159 159 159 Bearings ...... . ..... 32 32 Multi-Power ........... 167 167 167 167 167 Crankshaft & Bearings . 33 33 Removal .............. 157 157 157 157 157 Cylinder Head . .... .. . 12 12 Tractor Split .......... 156 156 156 156 156 2

DUAL DIMENSIONS TIllS service manual provides specifica ti ons in both Metric (81) and U.S. Customary systems of measurement . The first specific ation is given in the measuring system perceived by us LO be the preferred system when servicing a particular component, while the ~cond specifi cation (given in parenthesis) is the con- ve rt ed measurement. For instanc~, a specification of ··O.28mm (0. 011 inch )" would indicate that we feel t.he preferred measurement is the metri c syste m of meas urement and the U.S. Customary e<luivalenL of 0.28 mm is 0.0 11 inch. CONDENSED SERVICE DATA GENERAL Engine Make ....... . En gine Model. . Numbe r of Cylind ers l10re .... Stroke ....... . Displacement .......... •.. El cc lr i(: lIi System ....... , .. Forward Speeds ... . Reve~ Speeds TUNE -U P l- lri ng Order ......... . Va lve Clearance, Cold Intake Exhaust . Va lve Cleara nce, 1I 0t Intake ............... . Exhaust ... .. Va lve Face Angle . . ..... . Va lve Seat Angle ......... . Injection Timi ng, Stat ic Il\iector Opening Pressu re .. Ignition Timing, St atic .... . Breaker-lloinl Gap ........ . Dwe ll Angle ............. . Spark Plug Gap . .... . Governed Speeds - Engine npm Low Id le ......... .... . . IIigh Idle (no-load) ....... . Rated (rull load) ..... . 'lower Rating at Pto Shaft . . . ........ .. .... . SIZES-C LEARANCES Crankshaft M ain Jountal Diameter ............ . Hearing Clearance ..... MF265 Gaso li ne P erki ns AG4 .212 4 98.4 mm (3.875 in.) 114 .3 mm (4 .5 in .) 3.48 L (2 12 cu. in.) 1-3- 4 -2 0.30 mm (0 .012 in .) 0.38 mm (0 .0 15 in .) 46° 46° .. ,. 12° BTDC 0.56 mm (0.022 in .) 31 °· 34 ° 0.63 mm (0.025 in.) 725-775 2225·2275 2000 37 .3 kW (50 hpl 76.162-76. 175 mm (2 .9985·2.9990 in.) 0.064·0. 114 mm (0.0025-0.0045 in.) MF265 MF255 Diese l Diese l Perkins P erki ns , \D4 .203 M .236 4 4 9 1. 5 mm 98.4 mm (3.6 in.) (3.875 in.) 127 mm 127 mm (5.0 in .) (5.0 in.) 3. 33 L 3.87 L (203 cu. in .) (236 cu. in .) 12 Volt . Negat ive Grou nd 8 or 12 2 or 4 1-3-4 -2 0.30 mm (0.0 12 in .) 0.30 mm (0.012 in.) 0.25 mm (0.010 in.) 0.25 mm (0.010 in.) 46' 45 ' 26° BTOC 17235 kPa (2500 psi) 725-775 21 85 2000 37.3 kW (50 hll) 69.81-69.82 mm (2.7485·2.7490 in .) 0.076-0.127 mm (0.003-0.005 in.) 1 -3 -4-2 0.30 mill (0.012 in.) 0.30 mm (0.012 in .) 0.25 mm (0.010 in.) 0.25 mm (0.010 in.) 45° 45' 23° ErrDC 17235 kPa (2500 psi) 725-775 21 85 2000 38 .8 kW (52 hll) 76.162-76.175 mm (2.9985-2.9990 in.) 0.05-0.10 mm (0.002-0.004 in.) MF26, Gasoline Pe rkins AG4.236 4 98.4 mm (3.875 in) 127 mm (5.0 In) 3.87 L (236 cu. in .) 1-3-4-2 0. 30 mm (0.012 in.) 0.38 mm (0.015 in.) 46 ' 46' 1l 0 1JI1X; 0.56 mm (0.022 In.) 31°_34° 0.63 mm (0.025 in.) 726-776 2225-2276 2000 44 .7 kW (60 hp j 76.162-76. 175 mm (2.0985-2.9990 in .) O.064-0. 114 mm (0.0025-0.0045 in.) 3

CONDENSED SERVICE DATA (CONT.) MF255 MF'l55 MF2.' GasoUne Di ese l Dl etlel SIZES-CLEARANCES (CONT.) Crank s hafl Crank pi n Diameter ... .......... 63.475-63.487 mill 57. 112 -57.125 mm 63.475 -63.487 mm (2.4990-2.4995 in .) (2.2485-2.2490 in.) (2.4900-2 . 4995 in .) Bearing Cl earance ....... ... 0.038-0.076 mm 0.064 -0 .102 mm 0.038-0.076 mm (0.0015-0.0030 in .) .(0.0025-0.0040 in.) (0. 001 5-0.0030 in .) C nmkshaft End Play 0.05-0.38 mill (0.002-0.015 in.) Ca ms haft Journal Diameter Front .... 50 .71 -50.74 mm (I .9965-1.9975 in .) Center .. 50.46-50.48 mm ( 1. 9865- 1. 9875 ill .) H ea r . . . ............... 49 .95·49,97 mm ( 1. 9665-1.9675 in .) Camshaft Bearing C1 (!ard. n ce Front ......... ........... 0.064-0. 132 mill (0.0025-0.0052 in .) Ce nl er & Rear ........... 0.064-0.140 mOl (0,0025-0,0055 in.) Camshaft End Play 0. 1O-0 AO m ill (0.004-0.016 ill .) CA PACITiES Cooling System lOA L (II U.S. qts ,) Cr"mkcase Oil .. . 4.7 L' (5 U.S. qls. ) 'Add 0 .95 L {I U.S. (11.) with riller c hange. Transmission, Differentilll and lI ydraulic System With Dry Rrakes ...... . With Wei Br-.:tkes .. , .. ... . Hear Axle Plane t ary (Eac h) .... . ..... . ...... .. . Power Steering .... :)7 .8 L (10 U.S. gals.) 41.6 L (II U.S. gals. ) IA L (1.5 U.S. qts.) 0.95 L (J U.S. ql .) TIGHTENING TO RQUESt Cy linder Head, ..... . . . Main Bearing Caps . , .... Connect ing Hod Ca ps .. . flywhe el ................ _ .. . Crankshaft Pulley , . Rocker Shllft Su pports ..... In take Manifold .. Exhaust Manifold Ca mshafl Gear .... hile r Gear Hub 122- 12 9 N·m (90-95 ft.-Ibs.) 230-2 44 N·m (l70-ISO ft.-lbs.) 100-108 N-m (74-80 ft.-Ibs.) 380-406 N·m (2SO-3OO ft.-Ibs.) 38-43 N-m (2S-32 ft.-IllS.) 28 - 33 N·m (2 1-24 fl.-Ills.) 33-38 N·m (24- 28 ft.-Ibs.) 61-68 N'm (45- 50 ft .- Ibs.) 27-33 N·m (20-24 fl.-Its.) f1brque figures apply with Ulreads clean and light ly oiled. 4 0.05-0. 35 mm (0.002-0. 014 in .) 47.47-47.60 mill ( 1. 869-1.870 in.) 47 .22-47.24 mm ( 1. 859- 1. 860 in . ) 46.71 -46 .74 mm (1 .839-1.840 in .) 0.102-0.203 mm (0.004-0.008 in.) 0. 10·.2-0 .203 mill (0. OO4 -0.008 in.) lOA L (J I U.S . qLS. ) 6.6 I: (7 U.S. (lIS.) :]7.8 ]. (10 U.S. gals.) 41 .6 L (II U.S. gal s..) 1.4 L ( 1. 5 U.S. ti ts., 0.95 L (J. U.S. (II. ) 95-102 N·m (70-75 ft .- Ibs.) 150- 155 N·m (l1O-1l 5 fl.-I bs.) Refer lOO- IOS N·m (74-80 fl.-Ibs.) 136-149 N·m (100-110 fl. -Ibs. ) 2S-33 N·m (21-24 rt .- Ibs..) 8-12 N·m (6-9 rl.-Ibs.) 2S-33 N'm (21-24 ft.-lbs.) 26-28 N'm (19-2 1 f t. -Ibs.) 26-28 N· m (19-2 1 ft. -Ibs.) 0. 10-0.38 mm (0.004-0.015 in.) 50.71·50.74 mm ( 1. 9965-1.1)975 In .) 5OA6-50 .48 mm (1.9865· 1. 9875 in.) 49JJ5 - 49 .97 mm (1.9605- 1. 9675 in.) 0. 064 -0. 132 mm (0.0025-0.0052 in .) 0.064-0.140 mm (0.0025-0.0055 in.) O. lO-OAO mm (0.004-0.0 16 in .) iliA L (II U.S. qLS.) 6.6 L' (7 U.S. qts. ) : 17 .8 L ( 10 U.S. gals.) 41.6 L (II I1.S. gal s..) 1.4 L (1.5 U.S, (Its.) 0. 95 I. (l U.S. ql .) 135 N·m (lOU rl.·lbs.) 230-24'1 N·m (170-180 fl. -Ibs. ) to Text lOS N'm (SO fl. -Ibs. ) 392 N·m (290 fl.-Ibs.) 33 N·m (24 ft .· lbs. ) 33 N- m (24 fl.-Ibs.) 33 N·m (2 4 ft .- Ibs. ) 65 N· m (48 ft.-Ills.) 41 N·m (30 fl .- Ibs. ) MF26. Gasoline 63.475-63.487 mm (2.4990-2.4995 in .) 0.038-0.076 mm (0.0015-0.0030 in.) 0.05-0.38 rnm (0.002-0.015 in .) 50. 71 -50. 74 mm (1.9965-1.9976 In.) 6O A6-50.48 mm (1.9865-1.9876 Ill .) 411 .95-49.97 mm (1.9665-1.9675 In.) 0.064-0.132 mm (0.0025-0.0052 In.) 0.064-0. 14 0 mm (0.0025-0.0056 in .) 0 .10-0040 mm (0.004-0.016 in .) lOA L ( ll U.S. qts.) 6.6 L' (7 U.S. qtA) 37.8 L (10 U.S. gals.) 41.6 L (J I U.S. gals.) 1.4 L (1.5 U.S. qts.) 0.95 L (I U.S. ql .) 122- 1 29 N·m (90-95 ft.-Ibs.) 230-244 N·m (l70-ISO ft.JbIl.) 100- lOS N·m (74-80 (t .- Ibs.) 381HOO N·m (280-300 ft .- I bs..) 38-43 N-m (28-32 rt.-Ilwl) 28-33 N'm (2 1-2 4 ft ,- Ibs.) 33-38 N·m (24-28 (t .- II>8. ) 61-68 N-m (45-60 rt .- Ibs.) 26-28 N·nl (:l0-24 (t .- lbe.)

CONDENSED SERVICE DATA G ENE R AL Engine Make .............. • • .. Engine Model .. . ........ . Number of Cy lind ers ....... . Bore . .... .. ..... . Stroke .. Disp l acement .. .... .......... . MF265 Olese l Perkins A4 .236 4 98 .4 mm (3.875 in .) 127 mm (5.0 in.) 3.87 L (236 Cll . in.) MF270 Diese l Pe rkins A4 .236 4 MF275 Diese l Perki ns A4 .248 4 98 .4 mm IOJ mm (3.875 in.) (3.975 in .) 127 mm 127 mill (5.0 in .) (5.0 in.) 3.87 L 4.06 L (236 cu. in.) (248 cu. in.) MF290 Diesel Perki ns A4 .248 4 IOlmm (3.975 in ) 127 mm (5.0 in) 4.06 L (248 cu. in .) E I e<: lric a1 System ...... ..... .. .. ===========~ ' 2~V~ol~t , NegatiVe;~ro~un~d~========== Fo rwa rd Speed s. . . . . . . •• . . . . . 8 or 12 Reverse S) >eeds . . . . . . . . . . 2 or 4 T UNE·UP Firing Order . ......... . .. •.. Va lve Clearance, Co ld Intake and Exhaust .... Val ve Clearance, Hot Intake and Exhaust .. .. .. . . . . . Va lve Face Angle . ...... . Va lve Sea t Angle. . . . . . ... . bijection Timing, Stat ic ........ . lrijector Opening Pressure .... . Governed Speeds - Engine Hpm. Low Idl e. . ... . . . . . .. . High I dle (no-load) .. Rated (fu ll load) . .. . ..... . . . . Power Rating at Pto Shart . . . . . . . . . . . . . .. . . .. . . . ~IZES-CLEARANCES Crankshart Main Journal Diameter. Bearing Clearance Cranks hart Crankpin Diamete r. . . ........ . Bearing Clearance Crankshart End Play Cams hart Journal Diam e te r Front ....... ... ............ . Center . Rear . . Camshart Bearing Cle arance Front Ce nt er & Rear Cams haft End Play ...... . . . 1-3-'1-2 0. 30 mm (0.012 in.) 0.25 mm (0.0 10 in .) 45° 45 0 23° IJrDC 17235 kPa (2500 I >si) 725-775 2 185 2000 44.7 kW (60 hpj 76. 162·76.175 mm (2.9985·2.9990 in.) 0.05-0. 10 mm (0.002·0.004 in .) 63.475·63.487 mm (2 .4990·2.4995 in.) 0.038-0.076 mm (0.0015·0.0030 in .) 0.10-0.38 mm (0.004-0.015 in.) 50.71 ·50.74 mm (1.9965- 1. 9975 in.) 50.46-50.48 mm (1.9865- 1. 9875 in .) 49.95-49.97 mm (1.9665- 1. 9675 in.) 0.064-0. 132 mm (0.0025.0.0052 in .) 0.064-0. 14 0 mm (0.0025·0.0055 in.) 0. 10·0.40 mm (0.004-0.016 in .) 1-3·4-2 0.30 mm (0. 0I2 in .) 0.25 mm (0.010 In .) 45° 23 ° BTDC 17 235 kPa (2500 psi) 725-775 2 185 2000 41 .0 kW (55 hll) 76.162 -76. 17 5 mm (2.0085-2.9990 in.) 0.05·0. 10 mm (0.002.0.004 in .) 63.475·63.487 mm (2.4900-2.4995 in.) 0.038 ·0 .076 mm (0 .0015·0.0030 in.) 0.10-0.38 mm (0.004·0.015 in.) 50.71-50.74 mm (1.9965· 1. 9975 in .) 50.46-50.48 mm (1.9865- 1. 9875 in .) 49.05-49.97 mm (1.0fi65- J.9675 in .) 0.064·0. 114 mm (0.0025-0.0045 in.) 0.064-0.140 mm (0.0025-0.0055 in.) 0.10-0.40 mm (0.004-0.0 16 in .) 1-3-4-2 0.30 mm (0.012 in.) 0 .25 mm (0 .010 in.) 45° 45 0 24 ° IJroc 17235 kPa (2500 I>si) 725-775 2 185 2000 50.0 kW (67 hi» 76. 162-76. 17 5 mm (2.9985-2.9990 in .) 0.05-0. 10 mm (0.002-0.004 in.) 63.475-63.487 mm (2.4990-2.4995 in.) 0.038-0.076 mill (0.001 5-0.0030 in .) 0.10-0.:38 mm (0.004-0.015 in.) 50. 71 -50.74 mm ( 1. 9965- 1. 9975 in .) 50.46-50.48 mm (1.9865-1.9875 in .) 49.95-49.97 mm (}'9665-1.9675 in .) 0.64-0.132 mm (0.0025-0.0052 in .) 0.064-0. 14 0 mm (0.0025-0.0055 in.) 0. 10-0.40 mm (0.004-0.016 in .) 1 -3- 4-2 0.30 mm (0.012 in .) 0.25 mm (0.010 in .) <&0 45 0 24° BTDC 17235 kP'd. (2500 psI) 725-775 2380 2200 49.2 kW (66 hpj 76 . 162- 76.175 mOl (2 .9985-2.9990 in .) 0.05-0. 10 mOl (O.0()2.o.004 in.) 63.475-63.487 mm (2 .4990·2 .4 995 in.) 0.038-0.076 mm (0.0015-0.0030 in .) 0.10-0.38 mm (0.004-0 .015 in .) 50.71-50.74 mm (1.9960-1.9975 In .) 50.46-50.48 mm (1.9865-1.9875 in .) 49.95-49.97 mm ( 1. 9665- 1. 9675 in .) 0.064-0. 114 mm (O.0025-lXUX)45 in .) 0 .064 -0 .140 mOl (0.0025-0.0055 in.) 0. 10-0040 mm (0.004-0.016 in .) 5

Paragraphs '-2 MASSEY - FERGUSON CONDENSED SERVICE DATA (CONT_) ~IF265 MF270 Diese l Di eIJe l CAPACITIES Cooling System . . . . . . . . . . . . . . . . lOA L 14.2 L ( 11 U.S. qts.) (I6 U.S. qts.) Crankc ase Oil .. ........ ..... ... 6 .6 L" 6.6 L" (7 U. S. qts.) (7 U.S. qts.) ·Add 0.96 L (1 U.S. qt.) with filler change. Tnmsmission, Differential and HydrauliC System With Dry Brakes ............ 37 .8 L (10 U.S. _) With W et Brakes .. ........ . 41.6 L 41.6 L (11 U.S. gals.) (I I U.S. gals.) near Ax le Planetary (Each) .... . .. ... . ..... ...... 1.4 L 1.4 L (1.5 U.S. qts.) (1.5 U.S. qts.) Power Sleering ........ 0.95 L LlL (I U.S. qt.) (1.2 U.S. qt.) TIGHTENING roRQUES t Cylinder Head ................. 135 N'm 1 35 N'm (100 rt .-Ibs.) (100 rt .- Ibs.) Main Bearing Caps ... ..... 244 N'm 244 N-m (180 rt .- Ibs.) (180 ft .-Ibs. ) Co nnecting Rod Caps .. . Refer lO Flywheel 108 N-m 108 N'm (80 ft..-Ibs.) (80 ft.-Ihs.) Crankshaft Pulley . .. 392 N'm 392 N'm (290 ft.-Ibs.) (290 ft .- Ibs.) Rocker Shaft Supports .. 33 N-m 33 N'm (24 ft .- Ibs. ) (24 ft.-Ibs.) Intake Manifold ..... 33 N'm 33 N'm (24 ft.-lbs.) (24 rt .- Ibs.) Exhaust Manifold .. .......... .. 33 N'm 33 N'm (24 ft.-lbs. ) (24 rt .- Ibs.) Camsh art Gear .. 61 -68 N'm 55 N'm (45-50 ft.-Ibs.) (48 fl .-lbs.) Id ler Gear Hub 27-32 N'm 40 N'm (20-24 ft .-l bs.) (30 ft.-Ibs.) f!b rque figures apply with th reads clea n and lightly o il ed . AXLE ASSEMBLY All Model, 1. Refer to Fig. I for an exploded view of adjus table axle typical of unit used on all tractors. Recommended toe -in Is 3.2 mm (l /8 inch) and Is adjusted by tu rning right- hand tie rod end (El into or out of tube (n . Th remove the axle assemb ly, first remove hood , grille, side panels, battery, battery support, shield and grille frame. Remove s nap ring (6) and pull the center s teering s haft (Il) down ou t of arm (2) and s upport (I) . Be care ful not to lose shims (6) or damage seal (9). Su pport ax- 6 FRONT SYSTEM Ie and engine separately. Remove retain- Ing cli ps, then remove retaining pin (14). Use a puller to wit hdraw pivot pin (I6) o ut toward front. Fore and aft play of axle is adjusted by th ic kness of shims (15) and was h er (19). 1b remove axle support (1), fi rst remove radiat or and power stee ring cy linder . Remove mounting bolts. the n lower support housing from tractor. Inspect all parts for wear or damage and renew if necessary. Ream new bushings after installati on to provide des ired operati ng clearance. 1b reinstall axle s upport and axle asse mbl y, reverse the removal procedure. Tighten cap screws retaining axle support casti ng to 271 N- m (200 MF276 MF290 Di ese l Di esel 11 .3 L 14.2 L (12 U.S. q18.) (16 U.S. q18.) 6.6 L· 6.6 L· (7 U.S. qt.s.) (7 U.S. qts.) 37 .8 L (10 U.S._) 41.6 L 41.6 L (11 U.S. gals.) (II U.S._) 1.4 L 1.4 L (1.5 U.S. ql8.) (l.f) U.S. qts.) 0.95 L LlL (1 U. S. qt.) (1 .2 U.S. qt .) 135 N'm 1 36 N'm (100 ft.-Ibs.) ( 100 tt .- Ibs.) 244 N'm 244 N-m (180 ft .- Ibs.) (180 rt .-Ibs.. ) '!>xl 108 N-m lOS N'm (SO ft.-lbs.) (80 ft.-Ibs..) 392 N'm 392 N'm (290 ft.-Ibs.) (290 rt .-lbs.) 33 N'm 33 N'm (24 ft.-Ibs.) (24 fl .·lbo.) 33 N-m 33N ... (24 rt.-lbs.) (24 Ct.-Ibs.) 33 N'm 33 N'm (24 ft.-Ibs.) (24 ft. -Ibs.) 6 1-68 N'm 66 N'm (45-50 fl. -Ibs.) (48 n .- Ibs.) 27-32 N'm 40 N'm (20-24 fl.-Ibs.) (30 fl.·ll>o.) ft .- lbs.) to rque. Add shims (16) as necessary to limit f ore and aft play of axle to 0.08-0.26 mm (0.003-0.010 inch). Be sure shims are to the front and thrust. was h er (19) ill to t he rear. SPINDLES AND WHEEL HUBS All Model. 2. It is recommended that front wheel bearings be clea ned , inspected and repac ked with grease arter every 600 hours of ope rati on, or annually, wh icheve r comes first. A good quality multipurpose llthlum base grease is recommended ror repacking bearings. 1b remove spindle (22-F'\g. .1) , loosen

SHOP MANUAL spindle arm (13) clamp bolt and pull the ann from spindle shaft. I re-move key from spindle sh aft , then lower spindle from axle extension (25). Inspect t hru st bearing (27) and bushings (24 and 26) and renew if necessary. Spindle bushings must be reamed after installation to provide desired shaft to bushing clearance. Lubricate with multipurpose lithium base grease. Reinstall spindle and arm w it h a new dust sea l (23). Position ar m on s pindle so end play is Jess than 0. 10 mm (0.004 inch) , then lighten clamp bolt to 135 N'm (100 f t. - \bs. ) torque. 1b adjust wheel hub bearings, tight en wh eel retaining nut to 80 N- m (60 f t. - Jbs.) torque while rotating wh ee l hub. Back off castellated nul to align nearest slot with pin hole, then back off furth er to the next sl ot and install cotte r pin. Fig. I_Exp /od" vl.w of typic.' Idju. ttlbl. Iron' .xt. _mbIy lINd 0If .U mocHI .. A ~.r..rlng_and wf'l (H) I. uud on .am. ..... ,. I. fmnt ... ppon 2. Arm ' ......... 4. a"'MefitUnp t. . Snap ring II. SIIl m 7 n ... hlnp 8. "0" ring ... " 10. "0 " nn, II Steomng ...... " "".'1 12 n.. rod '3. Spindle.,... 14. ~pln It.. ShImI 18 Ad!: pi vot pin L 7 llIah.I"lI 18 . Hulhl ng Ig. Wuher 2<1. A" I/: 21 Wood ruff k~ U . Spindle " .. " Paragraphs 3·4 POWER STEERING SYSTEM WBRICATION AND BLEEDING All Models 3. TIle hydrostatic power steering fluid reservoir is attached to the rear or the power stee ring hydraulic pump (Fig. 2). Massey-Ferguson Permatran 1lI Oil is recommended ror use in stee ri ng system. On early models, an 011 strainer screen Is located on pump Inl et pipe ins id e the reservoir. On late models. a renewable oil rnter element is located within the reservoir. On a ll mod els, it is recommended that stee ring fluid be renewed and suction screen cleaned, or £ilter element replaced, after every 500 hours or operati on , or an nua ll y, whichever comes £irst. The st ee ring system Is selr bleeding, but steering should be cycled and reservoir rerilled as necessary u nt il level stops dropping. 1b £ill , stoll engine and remove filler plug (F- Fig. 2). If st eer- ing cy li nder has been disassembled or drained, fill reservoir then start and idle engine, adding fluid as level lowers un- t il s)'8tem is stabilized. Install £iller plug loosely, cycle the sys tem then recheck, adding fluid as ne<:essa ry to maintain rull reservoir. Tighten plug securely when fluid level ceases to drop. OPERATING PRESSURE All Models 4. 1b che<:k power steering relief valve pressure, fiJ~t start engine and actuate steering until oil temperature is approx- imately 50 0 C (120 0 F). Disconnect pressure line ( P-Flg. 2) and conne<:t a 0-20000 kPa (0·3000 psi) pressure gage in pump outlet port. Start engine and operate at 2000 rpm. Relief pressure should not exceed I L375 kPa (1650 psi). FIg. 2-TII. ~r ., Hrlng , .... ,-voIr I. fII!«I '"roug" hot. lor plug (F). Pump ",. .. U,.. /1M I. MIown lit (P). Relief valve pressure setting can be adjusted by turning relier valve ad· justing screw (Fig. 3, 4 or 5) clockwise to increase pressure or cou nt erclock· wise to reduce pressure. On early style pump (Fig. 3) reservoir (1 4) must be removed for access to relief valve. On late style pum ps (Ag. 4 or 6), relief valve is located on outs id e of pump body. Recommended press ure setting Is 10345-11030 kPa (1600- 1 600 psi). If specified reli er pressure can not be obtained, service relief valve and pump as outlined in ap llropriate paragraph 6, 6 or 7. POWER STEERING PUMP Three different types of power s teer· ing pumps have been used ; Parker· Hann ifin, Sundstrand and Aero-Qulp. See Figs. 3, 4 and 5 f or exploded view or each pump. The gear type stee ring pump is attached to rear of engine tlm- Fig. 3-uplad" vf_ of h~-tNNllfin ~ .~. In, pump. R.,., 10 ,..., It:N .... mblyno, ... L Ori~!: &e&r 2. Stoal 3. fmn. (O~~r 4. SOW I. Pumplna: "' ... e. Pump body 10. Rear (O~., II IIo:lIer ~~ 13 . Fliu-r ,, - I t. . " V" JoH.I 1II 0 .... e< 17 . Sh~ld II. WKr ""'f III. Thrust pIa.e 2fl. Ikn: .... .1~'fffly' ~q ~~~CG-- 7

Paragraphs 5-7 ing gear case, on eith er t he l erl-hand or right -hand side of engine (depe nding on tractor model ), and is driven by the timing gears. Pa rker·Hannlfln Pump 5. R&R. AND OVERH AUL . Be sure to thoroughly clean outside of p ump and hydra ulic lin es before removing p ump from engine. The pump mounting cap screws enter pump housing from the front and heads a re located on liming gear fronl cover. Before disassembling. scribe alignment marks across front cover (3-fig. 3), body (9), rear cover (10) and r eser· voir (14). Separate reservoir from rear cover. Remove drive gear (1) and key from pump shaft. Remove tie bol ts, then l ap end of pump dri ve shaft to separate rear cover from front cover. Place alignment ma rk s on t eet h of p um p geal'S SO original contact pattern of gear teeth can be maintained if original gears are reinstalled. Remove gear.i, thrust pla te (19) a nd wear plate (18) from pump body. Remove shield (1 7 ), gasket (16), "V" sea l (16) and drive shaft seal (2) from front cover. If relief valve (II) is to be dl sasse m· bled, count the number of turns reo quired to remove the adjus ting plug so plug can be reinstalled to its original set· ting. Ch eck relief pressure as out lined in l>aragraph 4 after pump is reinstalled and adjust if necessary. Inspect all pans for evidence of wear or damage. II pump body (9) is ex- cessively worn , pump assembly sh ou ld be rene wed . Renew all seals, gaskets. thrust plate, wea r plate and "0" rings. Th reassemb le, reverse the djsassem· bly procedure while not ing the fo ll ow - in g special ins tru ctions: Lip of o il sea l (2) should face inward in f ront cover. The "V" groove of seal (15) should be d ownward (facing away from gasket) in front cove r. The 1.5 mm (I116 inch) hole (H) in gasket (I6), shield (17) and wear p late (18) must be positioned upward ( toward pressu re side of pump) wit h bronze side of we ar plate toward gear faces. Notch ( N) on nat surface of pump body must be over holes (H). Bronze side of thrust I)late (\9) must be toward gears wit h large c ut·o ut section toward I nl et (botto m) side of pump. Make certain all assembly marks on pump gears and out· side of pump body are aligned, then tighten pump assembly cap screws evenly to 27 N-m (20 ft.·lhs.) torque. Tighten reservoir mounting bo lt to 11 .3 N'm (1 00 in .· lbs.) to rqu e. If pump is mou n ted on lef t side of engin e, count erbore on drive gear (I) should fa ce away from pump. If pump is mounted on righl side of engine, in· stall gea r with cou nterbore toward 8 pump. Reinstall pump a nd connect hydraulic lines. F'ill reservoir with oil, start engine and (:ycle steering from si de lo side several times to purge air from system. Chec k relief valve pressure sel- ling as outlined in paragrap h 4. Sundatrand Pump 6. R&R AND OVERHAUL. Thor- oughly clean exterio r of puml) a nd s ur· ro unding ar ea be fore re moving . Disconnect hydnlUlic Iin~ remove at · tachlng ca p screws and withdraw pump asse mbl y. Prior to disassembly, scribe alignment marks acfOS.'iI pump body, end plates and reservo ir. Remove rese rvoir (l5- F ig. 4) and filter element (14). Remove d ri ve gear an d key from pump drive shaft. Re mo ve tie boil S, then care full y separate end plates (3 and 12) from pump body (9). Remove puml) gears (7 and 8) and bearings (6). rt emo\'e seal rings (4 and 5) and shaft oil seal (2). Remove relief valve asse mbly ( II) . Inspect all pans for evide n ce of wear or damage and renew as necessary. Note t hat the pum p gears are load ed loward inl et side of pump body (9) due to hydraulic pressure withIn l)IIml), thus gears will nonnall y c ut a trac k on in lei side of pump body if p ump gear sha f ts and/or bearings are worn . If de plh of wear track exceeds 0. 10 mm (0.004 inch ), pump assemb ly should be renew' ed . Overall thickness or gesr.li a nd bear· i ngs s hould be 0. 10 -0.20 mm (0.004"'().008 inch) less thanlhi ck nessof pump body. Fig. 4- E$pkxHd ",,- 0' Su,,",~nd power ~ pump lINd on _ f1tO<HI .. I. S ... p "n, 2.01 1..,0.1 3. ,."", <"<>v~. 4. ·· 0·· rln. 6. Se.J ring 8. ~ •• In", 7. DrI~~ ... r S Dnv~n ... . I p.., ... pbody IO. ~ II 1It"lifl' nJve 0.00)' 12. II .... covet 13 . ",er .,Ioo .. .,n, 14 ··0 ·· nNI ". R-.vDl' ,ank 1 1 \ ~ MASSEY-FERGUSON Use new seal<! and "0" rings when reassembling. Be s ure that relieved side of bea rings (6) Is located on outle t side of pump. TIghten body retaining bolts even ly to 41 N-m (30 ft .- Ibs.) torq u e. Be su re scr Ibe ma r ks made prior to disassembly are a li gned. Rein.'ItaJl pump and tighten mou nting cap screws to 27 N'm (20 rt.-lbs.) torque. Connect hydmullc lines, refill reservoir and check relief valve press u re as oUllined in paragraph 4. Aero· Qu lp Pump 7. R&R AND OVERHAUL. 1b remove pump, first thoroughly clean exterior of pump and surrounding area. Oi~nnect hydraulic lines, re move au . ac hlng ca p screws and withdraw pu mp assembl y. Uefore dlSi\S8emhling pump, scribe alignmelll mark. 'I acr086 pump body, end plates and reservoir to ensure correct reassembly. Remove reservoir ( 17 -flg. 5) and filter el eme nt (16). Remove drive gear (2) and Woodruff key from pump drive shaft. Remove tie bolts, th en care fully !leparate end plates (5 and 14 ) from pump body (13). Remove pump gears (8) a.nd bearings (9). Remove relief valve assemb ly (19). Inspect a ll parts for evid ence of wear or damage and rene w If necessary. A seal repair kit Is available fo r renewal of all seals and ' '0·· rings. 1b reassemble, reverse. the disassembly procedure. Tighten body retaining bolts even ly while makifl8 certain that pump drive s haft tums freely. Reinstall pump and tighten mou nting

SHOP MANUAL ca p screws to 27 N-m (20 ft .· lbs). Con- nect hydraulic lines. refill reservoir and check re lief valve ] )res..o;u re as out lin ed in paragraph 4. HYDROSTATIC HAND PUMP Early Models 8. R&R AND OVERHAUL. Remove cover from l eft- hand si de of inSl mmcnt pane l. Disconnect the hydra uli c li nes from hydros tat ic hand pump and pl ug all ope nings to prevent e nl ry of dirt. Remove the fou r cap screws attaching hand pump to mounting bracket and stee ring column, then withdraw unit from splin ed end of stee ring sha ft (Fig. 7). Th di sasse mble, fi rs t thoroughly clean exterior of co nt rol uni t. Remove ca l) screws attach ing metering pump to bottom of housing. then remove end cap (22-F'ig. 6), rotor assembly (21 ), spacer plate (20) and d ri ve link (18) from va lve body. Remove screws retaining top cover (7) a nd lift off cover. Use a brass rod with one end be nt 90 0 to push ch ec k valve plug fro m valve body as shown in F'ig. 8. Remove check va lve seal using an Allen wrench , then re move check valve ball and s pring ( 1- 1g. 9). Carefully push control valve spool and sleeve assembly o ut bottom of housing as sh ow n in F'ig. 10. NOTE: Be ca .. fu l ..... lve uni t does not bind. PIIrtsa .. lit 10 extremely CiON tolenlrice and • twill Ing motion may be required lor wttlHtrawal. FIII .6-Ellplod.d vl.w of hydro" .IIc ,' .. rlnll h.nd pump .nd con l rol v .,v • • uembly uNd on ~ Hr' I)' model t,.;ton. \ 1 Snoop rinC 2. Snoop rInp 3 lIe.n,.. t. S<H11ns ... h,...1 shall 5. S<H11ng cullimn 6. OII ... al 7. End COY"'" 8 u",a • .,.. ""'hili!! 9 U ... hlns 10 . Thrust burln' .... y II "0" rI,.. 12. '·. hoe ....... 13 Valve oWve I( Driv-e pin , 16 Cenc"""'"""""- 16. C~k VJOl""_ 17 Valve body \8. !)rive Unk 15 19. !li te 20 8~u. pl. ce 21 Roc". uoy 2:2. t:nd cap Fig. 1-Len ekIe pen« tMIOWd "-'"II rwnoveI of hydtoer.tk tt.ttd pump. Fig. S-&pIodH1 view of MfOoOulp po,,"r " .. rlttg pump uNd on .om. model .. I Snail",.. 2 OrIve Ie'" 3. Snap rI"I "" ... 5 ",o,n .,.,..., r 8 ThnIIt""""r 7 "o·· .u., Il"ulllp~ . .... , .... 10 Cenc...u..; pin II . SeAl oiII!L 12 ··O·' rI.., 13. !' lImp body 14 IIev <:<tv"," 1&. "0" rinC 18. ntuo- ~"'~I 11 . ~"'oIrt.&l\k II . Bre.ther _yo 19 IWILft .... Iv-e_. 20. A~...u.., ICf"eW 2 1. Pon place Paragraph 8 I FIg • • _U ... bfae weldlrlfl twJ"lth. fNr 0Md In _ end /0 foro! • ,. .txHI1 • mm (SIt. Inch} IonfI /0 pull! ctt.et ~ plug I'rom *"- body .. ....... . FIg. f-V"" o'cMck"""'~~1"MIOWd from VII ..... body . 9

MASSEY FERGUSON MF255 MF265 MF270 MF275 MF290 Shop Manual

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