John Deere 850, 900 HC, 950, 1050 Tractors OEM Service & Repair Manual

Section 10 - GENERAL Section 20- ENGINE REPAIR Section 30- FUEL AND AIR REPAIR Section 40- ELECTRICAL REPAIR Section 50- POWER TRAIN REPAIR Section 60- STEERING/BRAKES REPAIR Section 70- HYDRAULIC REPAIR Section 80- MISCELLANEOUS REPAIR Section 90- Operator Station Repair Section 220- ENGINE OPERATION AND TESTS

- o =o 850, 900HC, = 950 and 1 050 Tractors JOHNDEERE TECHNICAL MANUAL 850, 900HC, 950 and 1050 Tractors TM1192 (01AUG86) English John Deere Lawn & Grounds Care Division TM1192 (01AUG86) LITHO IN U.S.A. ENGLISH

1 850, 900HC, 950 AND 1050 TRACTORS Technical Manual TM-1192 (Aug-86) SECTION AND GROUP CONTENTS SECTION 10 - GENERAL Group 00 - Specifications and Special Tools Group 05 - Predelivery, Delivery, and After-Sale Services—850 and 950 Tractors Group 06 - Predelivery, Delivery, and After-Sale Services—1050 Tractor Group 10 - Tune-Up Group 15 - Lubrication Group 20 - Separation SECTION 20 - ENGINE REPAIR Group 00 - Specifications and Special Tools Group 05 - Cylinder Head, Valves, and Cam¬ shaft — 850 and 950 Tractors Group 06 - Cylinder Head, Valves, and Cam¬ shaft — 1050 Tractor Group 1 0 - Cylinder Block, Liners, Pistons and Rods Group 15 - Crankshaft, Main Bearings, and Fly¬ wheel Group 20 - Lubrication System Group 25 - Cooling System— 850 and 950 Trac¬ tors* Group 26 - Cooling System — 850, 950, and 1050 Tractors** SECTION 30 - FUEL AND AIR REPAIR Group 00 - Specifications and Special Tools Group 05 - 850 and 950 Air Intake System Group 06 - 1 050 Air Intake System Group 1 0 - Diesel Fuel System Group 1 5 - 850 and 950 Control Linkage* Group 16 - 850, 950, and 1050 Control Linkage** SECTION 40 - ELECTRICAL REPAIR Group 00 - Specifications and Special Tools Group 05 - General Information Group 10 - Charging System Group 15 - Starting Circuit Group 20 - Lighting and Accessory Circuits SECTION 50 - POWER TRAIN REPAIR Group 00 - Specifications and Special Tools Group 05 - Engine and Clutch Linkage — 850 ( -16000) and 950 ( -20000) Tractors * 850 ( - 009000 % 950 ( -012000) "850 ( 009001 - ), 950 (012001- ) SECTION 50—POWER TRAIN REPAIR—Continued Group 06 - Engine and Clutch Linkage 850 (16001- ), 950 (20001- ) and 1050 Tractor Group 10 - Sliding Gear Transmission 850 { - 1 6000) and 950 ( -20000) Tractors Group 11 - Sliding Gear Transmission 850 (16001- ), 95Q (20001- ) and 1050 Tractor Group 15 - PTO 850 ( -16000) and 950 ( - 20000) T ractors Group 16 - PTO 850 (16001 ), 950(20001- ) and 1050 Tractor Group 20 - Differential 850 ( -16000) and 950 ( - 20000) Tractors Group 21 - Differential 850 (16001- ), 950 (20001- ) and 1050 Tractor Group 25 - Final Drive—850-950 Tractors Group 26 - Final Drive—1050 Tractor Group 27 - Drop Housings and Final Drives — 900HC Tractor Group 30 - Mechanical Front-Wheel Drive SECTION 60 - STEERING/BRAKES REPAIR Group 00 - Specifications and Special Toois Group 05 - Steering Group 10 - Power Steering Group 15 - Brakes SECTION 70 - HYDRAULIC REPAIR Group 00 - Specifications and Special Tools Group 05 - Hydraulic Pump and Oil Filters Group 10 - 850/950 Rockshaft and Implement Hitches Group 15 - 1050 Rockshaft and Implement Hitches Group 20 - Selective Control Valve SECTION 80 - MISCELLANEOUS REPAIR Group 00 - Specifications and Special Tools Group 05 - Front Axle Assembly Group 10 - Wheels COPYRIGHT© 1986 DEERE & COMPANY Molme, Illinois All rights reserved Previous Edition Copyright © 1984 Copyright© 1980 Copyright © 1979 Copyright© 1978 Copyright © 1977 DEERE & COMPANY TM-1192 (Aug-86) LtTHO IN U.S.A. Tractors - 850, 900HC, 950 and 1050

2 SECTION AND GROUP CONTENTS—Continued SECTION 90 - OPERATOR STATION REPAIR Group 00 - Specifications and Special Tools Group 05 - ROLL-GARD® Group 10 - Canopy SECTION 220 - ENGINE OPERATION AND TESTS Group 00 - Specifications and Special Tools Group 05 - System Operation Group 10 - System Tests and Diagnosis SECTION 230 - FUEL/AIR OPERATION AND TESTS Group 00 - Specifications and Special Tools Group 05 - 850 and 950 Air Intake System Group 06 - 1050 Air Intake System Group 10 - Diesel Fuel System Group 1 5 - Speed Control Linkage — 850 and 950 Tractors" Group 16 - Speed Control Linkage—850, 950, and 1050 Tractors** SECTION 240 - ELECTRICAL OPERATION AND TESTS Group 00 - Specifications and Special Tools Group 05 - General Information and Diagrams Group 10 - Charging System Diagnosis Group 15 - Starting Circuit Diagnosis Group 20 - Lighting and Accessory Circuits SECTION 250 - POWER TRAIN OPERATION AND TESTS Group 00 - Specifications and Special Tools Group 05 - Clutch and Transmission Operation— 850 ( -16000) and 950 ( -20000) Tractors Group 06 - Clutch and Transmission Operation— 850 (16001- ), 950 (20001- ) and 1050 Tractor Group 10 - Trouble Shooting the Clutch, Trans¬ mission and PTO — 850 ( -16000) and 950 ( -20000) Tractors Group 11 - Trouble Shooting the Clutch, Trans¬ mission and PTO—850 (16001- ), 950 (20001- ) and 1050 Tractor Group 1 5 - Differential and Final Drive — 850 ( - 1 6000) and 950 ( -20000) Tractors Group 16 - Differential and Final Drive—850 (16001- ), 950 (20001- ) and 1050 Tractor Group 20 - Mechanical Front-Wheel Drive *850 ( -009000), 950 ( -012000) **850 (009001- ), 950 (012001- ) SECTION 260 - STEERING/BRAKES OPERATION AND TESTS Specifications and Special Tools Steering Power Steering Brakes - HYDRAULIC OPERATION AND TESTS Specifications and Special Tools Hydraulic System Operation Hydraulic System Tests and Diagnosis Hydraulic Pump 850/950 Rockshaft and Implement Hitches 1050 Rockshaft and Implement Hitches Selective Control Valve Group 00 - Group 05 - Group 10 - Group 15 - SECTION 270 Group 00 - Group 05 - Group 10 - Group 15 - Group 20 - Group 25 - Group 30 - METRIC I s This tractor is of metric design. All hard¬ ware is therefore metric. Make sure you use the specified metric hardware when re¬ placement becomes necessary. For your convenience most specifications are given in customary U.S. measurement with met¬ ric measurement following. Some specifications cannot be converted. Those appear in metric only. All information, illustrations and specifica¬ tions contained in this technical manual are based on the latest information available at the time of publication. The right is reserved to make changes at any time without no¬ tice. TM-1192 (Aug-86) LITHO IN U.S.A. Tractors - 850, 900HC, 950 and 1050

General Specifications and Special Tools 10-00-1 Section 10 GENERAL CONTENTS OF THIS SECTION Page GROUP 00 - SPECIFICATIONS General Tractor Specifications 850 and 950 Tractors ..... . 00-1 1050 Tractors 00-3 Predelivery 00-4 Tune-Up 00-6 Lubrication ......... ....... ... 00-6 Separation .... ...... . ...... 00-7 Special Tools . . . . ..... ...... . ...... ..... 00-8 GROUP 05 - PREDELIVERY, DELIVERY, AND AFTER-SALE SERVICES 850 AND 950 TRACTORS Before Starting Tractor 05-1 Predelivery Services 05-4 Delivery Services _ _____ _ _ ________ ______ _ » . . 05-13 After -Sale Services 05-14 GROUP 06 - PREDELIVERY, DELIVERY, AND AFTER-SALE SERVICES 1050 TRACTOR Before Starting Tractor 06-1 Predelivery Services ....... 06-5 Delivery Services 06-11 After-Sale Services ....... . , . ..... ...... 06-12 Page Group 10 - TUNE-UP Preliminary Engine Testing 10-1 Tune-Up 10-1 Operation 10-5 General ........ . 10-5 GROUP 15 - LUBRICATION Lubricants . ÿ .... . - 15-1 Engine 15-2 Transmission-Hydraulic System 15-3 Front Wheel Bearings 15-5 Grease Fittings ..... . 15-7 GROUP 20 - SEPARATION Removing Front End (850-950) 20-1 (1050) 20-6 Separating Front End from Clutch Housing (850-950) 20-2 (1050) 20-8 Engine Removal (850-950) 20-4 (1050) 20-10 Separating Clutch Housing from Transmission 20-12 Removing Rear Axle Housing . 20-14 Group 00 SPECIFICATIONS AND SPECIAL TOOLS GENERAL TRACTOR SPECIFICATIONS (850-950) 850 TRACTOR 950 TRACTOR HORSEPOWER (Official PTO horsepower) ENGINE; Type Slow idle speed Working speed range Bore and stroke Displacement Compression ratio Firing order (No. 1 in rear) Valve clearance Intake Exhaust 16.61 kW (22.27 hp) at 2600 rpm 3-cyfinder, in-line, valve-in-head, diesel 800 rpm 1900 to 2600 rpm 80 x 85 mm (3.15 x 3.35 in.) 1.3 L (78 cu-in) 21 to 1 1-3-2 0.20 mm (0.008 in.) 0.20 mm (0.008 in.) 20.40 kW (27.36 hp) at 2400 rpm 3-cylinder, in-line, in-line, valve-iri-head, diesel 800 rpm 1700 to 2400 rpm 90 x 90 mm (3.54 x 3.54 in,) 1.7 L (105 cu-in) 20 to 1 1-3-2 0.15 mm (0.006 in.) 0.15 mm (0.006 in.) TM-1192 (JuI-84) LiTHO IN U.S.A. Tractors - 850, 950 and 1050

10-00-2 Specifications and Special Tools General SPECIFICATIONS (850 and 950)—Continued Injection pump timing Lubrication system FUEL SYSTEM: Type Injection pump type Air cleaner COOLING SYSTEM: Type Temperature control CAPACITIES Fuel tank Cooling system Crankcase (with filter change) Transmission-hydraulic system 850 ( -16000) and 950 ( -20000) 850(16001- ), 950 (20001- ) 2WD 850 (16001- ), 950 (20001- ) MFWD MFWD Axle TRANSMISSION: Type Gear selections Clutch 850 ( -16000) and 950 ( -20000) 850(16001- ) and 950 (20001- ) POWER TAKE-OFF: Type 850 ( -16000) and 950 ( -20000) 850 (1 6001- ) and 950 (20001- ) Speed (2260 engine rpm) Size Clutch 850 ( -16000) and 950 ( -20000) 850 (16001- ) and 950 (2000 1 - ) HYDRAULIC SYSTEM: Type Working pressure Pump BRAKES Type ELECTRICAL SYSTEM: Type Battery- Alternator TIRES AND TREADS: 850 26° BTDC force-feed, pressurized with full-flow filter precombustion chamber plunger dry type pressurized with centrifugal pump heavy duty thermostat 32 L (8.5 U.S. gal.) 5.5 L (6 U.S. qt.) 4.5 L (5 U.S. qt.) 18 L {19 U.S. qt.) 20 L (21 U.S. qt.) 22 L (23 U.S. qt.) 6.5 L (6.9 U.S. qt.) 2-speed range selector and 4-speed gear selector 8 forward and 2 reverse single-disk, dry two-stage transmission clutch transmission driven, with overrunning clutch continuous running clutch 540 rpm 35 mm (1-3/8 in.) 950 25° BTDC force-feed, pressurized with full-flow filter precombustion chamber plunger dry type pressurized with centrifugal pump heavy duty thermostat 32 L (8.5 U.S. gal.) 6 L (6.5 U.S. qt.) 6.4 L (7 U.S. qt.) 18 L (19 U.S. qt.) 20 L (21 U.S. qt.) 22 L (23 U.S. qt.) 8.5 L (9 U.S. qt.) 2-speed range selector and 4-speed gear selector 8 forward and 2 reverse single-disk, dry two-stage transmission clutch transmission driven, with overrunning clutch continuous running clutch 540 rpm 35 mm (1-3/8 in.) uses transmission clutch uses transmission clutch two-stage transmission clutch two-stage transmission clutch open center, constant flow open center, constant flow 13 790 kPa (138 bar) (2000 psi) 13 790 kPa (138 bar) (2000 psi) gear pump, driven by engine gear pump, driven by engine mechanical dry, internal expanding shoe 1 2-volt, negative ground one, 1 2-volt, BCI group 30H, 475 amps cold cranking, 160 minutes reserve capacity 25-amp mechanical, dry, internal expanding shoe 1 2-volt, negative ground one, 1 2-volt, BCI group 30H, 475 amps cold cranking, 160 minutes reserve capacity 25-amp See pages 05-6 and 05-7 in this See pages 05-6 and 05-7 in this section. section. TM~1 192 (Aug-86) LITHO IN U.S.A. Tractors - 850 , 900HC, 950 and 1050

General Specifications and Special Tools 1 0-00-3 DIMENSIONS: Wheelbase Overall length Height to muffler cover* Height to top of ROLL-GARD® Canopy* Overall width (minimum tread) Turning radius SHIPPING WEIGHT** 850 850 ( -16000) 1.63 m (64 in.) 850 (16001- ) 1.7 m (6T.5 in.) 850 ( -16000) 2.29 m (118 in.) 850 (16001- ) 3.07 m (121 in.) 2.18 m (85.8 in.) 2.06 m (81.1 in.) 1.35 m (53 in.) 2.80 m (110 in.) 1065 kg (2350 lbs.) 950 1.75 m (69 in.) 3.10 m (122 in.) 2.28 m (89.6 in.) 2.13 m (84.0 in.) 2.48 m (58 in.) 2.99 m (118 in.) 1200 kg (2650 lbs. *850 Tractor equipped with 1 1.2-24 rear tires and 5.00-15 front tires. 950 Tractor equipped with 12.4-28 rear tires and 5.50-16 front tires. * Equipped for average field service, without fuel and ballast. TRAVEL SPEEDS: 850 Tractor 950 Tractor Rated Engine Speed Standard PTO Speed Rated Engine Speed Standard PTO Speed Gear (2600 rpm) (2260 rpm) (2400 rpm) (2260 rpm) 1 1.3 km/h 0.8 mph 1.1 km/h 0.7 mph 1.3 km/h 0.8 mph 1.2 Km/h 0.8 mph 2 1.8 km/h 1.1 mph 1.6 km/h 1.0 mph 1.9 km/h 1,2 mph 1.8 km/h 1.1 mph 3 2.7 km/h 1.7 mph 2.4 km/h 1.5 mph 2.8 km/h 1.7 mph 2.6 km/h 1.6 mph 4 4.0 km/h 2.5 mph 3.5 km/h 2.2 mph 4.1 km/h 2.6 mph 3.9 km/h 2.4 mph 5 6.0 km/h 3.8 mph 5.2 km/h 3.3 mph 6.2 km/h 3.9 mph 5.9 km/h 3.7 mph 6 8.6 km/h 5.4 mph 7.5 km/h 4.7 mph 8.9 km/h 5.5 mph 8.4 km/h 5.2 mph 7 12.7 km/h 8.0 mph 11.1 km/h 6.9 mph 13.1 km/h 8.2 mph 12.3 km/h 7.7 mph 8 18.7 km/h 11.7 mph 16.3 km/h 10.2 mph 19.3 km/h 12.1 mph 18.2 km/h 11.4 mph 1R 1.8 km/h 1.1 mph 1.6 km/h 1 .0 mph 1.9 km/h 1.2 mph 1.8 km/h 1.1 mph 2R 8.6 km/h 5.4 mph 7.5 km/h 4.7 mph 8.9 km/h 5.5 mph 8.4 Km/h 5.2 mph *850 I ractor equipped with 1 1.2-24 rear tires. 950 Tractor equipped with 12.4-28 rear tires. GENERAL TRACTOR SPECIFICATIONS (1050) HORSEPOWER (Factory observed PTO horsepower) 24.6 kW (33 hp) at 2400 rpm ENGINE: Type Slow idle speed Working speed range Bore and stroke Displacement Compression ratio Firing order (No. 1 in rear) Valve clearance Intake Exhaust Injection pump timing Lubrication system 3-cylinder, in-line, valve-in-head, turbocharged diesel 800 rpm 1700 to 2400 rpm 90 x 90 mm (3.54 x 3.54 in.) 1717 cm3 (105 cu-in) 21 to 1 1-3-2 0.15 mm (0.006 in.) 0.15 mm (0.006 in.) 25" BTDC force-feed, pressurized with full-flow filter TM-1192 (Jul-84) LITHO IN U.S.A. Tractors - 850, 950 and 1050

10-00-4 Specifications and Special Tools General SPECIFICATIONS (1050)—Continued FUEL SYSTEM: Type Injection pump type Air cleaner precombustion chamber plunger dry type with secondary element COOLING SYSTEM: Type Temperature control CAPACITIES: Fuel tank Cooling system Crankcase (with filter change) Transmission-hydraulic system Front axle housing pressurized with centrifugal pump heavy duty thermostat 42 L (11 U.S. gallons) 6.7 L (7.6 U.S. quarts) 6.4 L (7 U.S. quarts) 26 L (7 U.S. gallons) 8.5 L (9 U.S. quarts) TRANSMISSION: Type Gear selections Clutch 2-speed range selector and 4-speed gear selector 8 forward and 2 reverse two-stage, dry POWER TAKE-OFF: Type Speed (2260 engine rpm) Size Clutch continuous running 540 rpm 35 mm (1-3/8 in.) uses two-stage transmission clutch HYDRAULIC SYSTEM: Type Working pressure Pump open center, constant flow 13800 kPa (138 bar) (2000 psi) gear pump, driven by engine BRAKES: Type mechanical, dry, internal expanding shoe ELECTRICAL SYSTEM: Type Battery Alternator TIRES AND TREADS: 12-volt, negative ground one, 12-volt, BCI group 30H, 475 amps cold cranking, 160 minutes reserve capacity 25-amp See pages 06-6 and 06-7 in this section. TM-1192 (Mar-80) Litho in U.S.A. Tractors - 850, 950 and 1050

John Deere 850, 900 HC, 950, 1050 Tractors OEM Service & Repair Manual

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