John Deere

MODEL: 2020 Serial Number 0-117,500 Volume 1 of 2

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-SM2072

.JOHN DEERE 2020 SERIES

TRACTORS

CONTENTS Description and Specifications Tractor Separation. . . . . Periodic Lubric~tion . . . . Engine Tune- Up and Tractor Adjustment Basic Engine .•........ Engine Lubrication System . . . . Governor and Speed Control Linkage Engine Cooling System Fuel Systems . . . . . . . . . Electrical System . . • . . . . Engine Clutches and PTO Clutches Transmission and Differential Hi-Lo Shift Unit .... Reverser .......• Continuous- Running PTO . Transmission-Driven PTO Independent PTO. . • Belt Pulley . . . . Final Drive System. . Hydraulic Brakes Manual Steering . . Power Steering (Open Center Type). Power Steering (Closed Center Type) . Power Steering (Grove Tractors). . . Front Axles, Front End. Support, and Steering Linkage Seats . .! • • •

Hydraulic System ..••• Hydraulic Pumps ..•.. Rockshaft and 3- Point Hitch i. •

Selective Control Valve . . • Selective Control Valve . . • Hose Couplers and Remote Cylinders. Drawbars . . • . . . . . . Wheels, Tires, and Weights. Trouble Shooting. . . Special Service Tools. . . .

SM-2072 (Jul-69) Litho in U. S. A.

SERVICE MANUAL

. . .' .

Section

10 20 30 40 50 60 70 80 90

100 110 120 125 126 130 140 145 150 160 170 180 190 195 196 200 210 220 230 240 250 255 260 270 280 290 300

10-5-1 Section 10

DESCRIPTION AND SPECIFICATIONS

Group S DESCRIPTION

Fig. 10-S-I-Right Side View 0£2020 HU Tractor

John Deere 2020 Tractors are utility-type wheel tractors available in three basic styles: 2020 RU, 2020 HU, and 2020 LU.

The 2020 Series Tractors are full four-plow units designed for general purpose farming. They are low-built for extra stability.

A 2020 Grove Tractor is also available. This tractor is_ fully shielded for work in groves, orchards, and vineyards.

These tractors are available with either gaso­line or diesel engines. Other components of the various models are very similar.

The main features of the tractors are de­scribed in the paragraphs which follow. Full de­scriptions of components are given in other sec­tions throughout this manual.

SM-2072 (Nov-66) Litho in U.S.A.

SERIAL NUMBERS

The engine serial number is stamped on a plate at the right side of the engine cylinder block.

The tractor serial number is located at the right side of the transmission case. NOTE: When ordering tractor and engine parts, record all the digits on the serial number pad. An explana­tion of the serial number digits is given on the next page.

Specifications

Tractor

RU Models

HU Models

LU Models

Tractors, 2020 Series­Description and Specifications

REAR WHEEL TREADS

Axle Type Wheel Type

Flanged Demountable Rim Flanged Steel Disk Flanged Cast Rack and Pinion Cast Flanged Power Adjusted

Flanged Cast

Rack and Pinion Cast

Flanged Power Adjusted

Flanged Demountable Rim Flanged Steel Disk

10-10-3

Possible Tread Range*

48 inches to 76 inches 60 inches or 64 inches 50 inches to 78 inches 48 inches to 96 inches 48 inches to 80 inches

50 inches to 78 inches 54 inches to 78 inches (13.6-38 and 15.5-38) 50 inches to 96 inches 54 inches to 96 inches (13.6-38 and 15.5-38) 56 inches to 80 inches

40 inches to 64 inches 47 inches or 52 inches

* Due to fender interference, minimum tread width on R U Tractors is 50 inches for 13.6 x 28 tires and 52 inches for 16.9 x 24 tires. On HU Tractors (with rack and pinion axle) minimum tread is 50 inches for 12.4 x 36 tires and 52 inches for 13.9 x 36 tires. On LUTractors, minimum tread widths are 40 inches for 11.2 x 24 tires and 12.4 x 24 tires, and 48 inches for 14.9 x 26 tires.

FRONT WHEE L TREADS

Axle Type Tire Size Wheel Treads (inches)*

Swept-back 6.00 x 16 48 to 72-9/16 - 77-11/16 (RU) max. with wheels reversed.

7.50 x 15 49-5/8 to 74-3/16 - 77-5/16 7.50 x 16 max. with wheels reversed. 9.00 x 10 52 to 69 inches with wheels

dished in. Straight 6.00 x 16 48 to 74 - 79-1/8 max. with

(RU and wheels reversed. HU) 7.50 x 15 49-5/8 to 75-5/8 - 80-11/16

7.50 x 16 max. with wheels reversed. Swept-back All (LU) 44 to 61 - 66 max. with wheels

(Short Knee) 7.50 x 16 (RU) reversed. Extra Wide 6.00 x 16 58-3/8 to 86-3/8 - 91-1/2 Straight max. with wheels reversed. (HU) 7.50x15 60 to 88 - 93 m ax. with

wheels reversed. Extra Wide 6.00 x 16 58 to 86 - 91 max. with wheels Straight reversed. (RU) 6.50 x 16 59 to 87 - 92-1/2 max. with

7.50 x 15 wheels reversed. 7.50 x 16

* Wheel treads are changed in two-inch steps.

SM-2072 (Mar-68) Litho in U.S.A.

Separating Rockshaft From Transmission

Tractors, 2020 Series­Tractor Separation 20-25-1

Group 25 SEPARATING ROCKSHAFT FROM TRANSMISSION

IMPORTANT: Use care and cleanliness when working on any hydraulic system. The smallest amount of dirt or;Joreign matter, scratch, nick or burr can make a hydraulic sys tem inoperative.

Check for evidence of leakage in hydraulic system before removal.

Disconnect battery ground straps for safety.

Remove transmission case top shield.

Disconnect leads from starter safety switch.

Remove seat assembly from rocks haft hous­ing (Section 210).

Disconnect hitch lift links from rockshaft arms.

Disconnect coupler lines (if equipped) from rear of selective control valve.

Remove oil return hose between selective con­trol valve and rocks haft housing.

Fig. 20-25-1-Rockshaft Attaching Points

SM-2072 (10-65) Litho in U.S.A;

Fig. ;20-25-2-Removing Rockshaft Housing

Place the load selector lever in the "L" po­sition so that the load selector link with roller will guide over the cam follower during removal (Fig. 20-25-2).

Attach one JD-244 engine adapter to top of rocks haft housing as shown in Fig. 20-25-2.

Remove attaching cap screws from rockshaft housing (arrows, Fig. 20-25-1).

Using chain hoist, lift rockshaft housing from transmission as shown in Fig. 20-25-2.

NOTE: Cover rockshaft opening in top of transmission to keep out dirt or foreign matter.

Oil Pump and Oil Filter

Tractors, 2020 Series­Engine Lubrication System 60-5-5

PUMP

T 9783

Fig, 60-5-7 -Measuring Clearance Between Pump Gears and Body

T 9784

Fig_ 60-5-8-Measuring Clearance Height of Pump Gears

Place a straightedge across top of housing (to represent cover) and measure clearance be­tween gears and straightedge (See "Specifica­tions"). Replace gears and (or) housing if nec­essary.

OIL PRESSURE REGULATING VALVE AND SEAT

Check pressure regulating valve for damage and replace if necessary.

Inspect regulating valve seat in front of cyl­inder block for damage (especially at raised rim of bushing).

If regulating valve bushing must be replaced, remove radiator and engine timing cover for ac­cess. (See Section 80, Group 10 and Section 50, Group 30 for details.)

SM-2072 (Jul-69) Litho in U. S. A.

Fig. 60-5-9-lnstalling Oil Pressure Regulating Valve Bushing

Remove damaged bushing and press new bush­ing into block using JD-248 tool (Fig. 60-5-9). Press in bushing until outer recessed edge of bushing is flush with bottom of counterbore in block.

IMPORTANT: Do not press on raised inner rim of bushing. This rim is the regulating valve seat.

Check oil pressure regulating spring for rusty or fractured coils. If spring is damaged in any way, replace it.

Check threads on pressure regulating valve plug for damage. Replace if necessary.

OIL FILTER

Unscrew filter element from engine and dis­card it. Inspect oil passages at mounting point on cylinder block or obstructions. If filter base nipple in block is damaged, refer to Section 50, Group 15 for replacement details.

ASSEMBLY

NOTE: Refer to Figure 60-5-5 for correct relationship of parts.

Press idler shaft (12) into pump housing until flush with outer surface of housing.

Using JD-253 Tool or other suitable tool, press bushing (13) into shaft bore of housing until flush with surface inside housing.

Place gear and shaft in housing. Install pump idler gear on idler shaft in housing. Check to see that both gears rotate freely in housing.

Install new O-ring (17) in oil outlet opening in oil pump cover.

140-10-2 Tractors, 2020 Series­

Transmission Driven PTO Shafts and Controls

NOTE: To service the PTa disconnect, re­move counters haft and low and high range shift­er shafts from transmission as instructed in Section 120, Groups 10 and 15.

Fig. 140.10.3-R~moving PTO Dis(:onnect

Holding shifter collar, remove PTO drive shaft from transmission (if not removed). Re­move shifter collar.

Remove lock wire around set screw and re­move screw securing shifter to shaft.

Rem.ove snap rings and washers from end of shifter shaft. Slide shaft out front of transmission case and remove shifter from transmission case.

Rem.ove roll pin securing shifter arm to shift­er lever and remove lever and arm from trans­mission case.

INSPECTION AND REPAIR

PTO POWERSHAFT

Inspect powers haft for wear or damage. In­spect bearing in powers haft quill for damage.

SM-2072 (10-65) Litho in U.S.A.

Fig. 140·10.4-Pressing Powershaft from Quill

To replace powershaft or bearing, remove snap rings and press off old bearing (Fig. 140-10-4). Press on new bearing until snap rings fit in grooves.

Fig. 140-10-5-Powershaft Qui II Oil Seal

Inspect powershaft quill for damage. Check for evidence of leakage around oil seal (Fig. 140-10-5). If necessary, remove old seal and press in new seal (with lips of seal facing driver) to bot­tom of bore in quill.

Steering Valve

Tractors, 2020 Series­Power Steering (Grove Tractors) 196-10-3

Fig. 196-10-S-Removing Rotor Retaining Ring

Remove rotor retaining ring (Fig. 196-10-5) with pair of snap ring pliers and a small screw­driver.

Pull out both rmg dowel pins.

Fig. 196-10-6-Rotor and Ring Assembly

Remove rotor and ring assembly (Fig. 196-10-6) by pulling upward on the ring with a slight rocking motion.

SM-2072 (Nov-66) Litho in U.S.A.

BEARING SUPPORT, BEARING, VALVE SPOOL, AND SHAFT

Fig. 196-10-7-Bearing Support and Shaft

Tap end of shaft with mallet until bearing sup­port (Fig. 196-10-7) rises out of housing.

Remove bearing support.

Fig. 196-10-8-Valve Spool and Shaft Assembly

Pull on valve spool shaft (Fig. 196-10-8) until the whole assembly slides freely out of the hous­ing. Do not use force. Spool and bore tolerances are very small and forcing could cause the spool to jam and damage parts.

If the spool binds or jams, push the assembly back into bore and attempt removal again.

INDEX

A

Air cleaners . . . . . . . . . . . . . . .. Alternator (Motorola) . . . . . . . . . . Alternator belt adjustment. . . . ... . Alternator testing (Motorola) .... . Antifreeze ................. . Auxiliary hydraulic reservoir. . . . . Axles, front. . . . . . . . . . ',' . . . .. Axle housings .............. .

B

Page

90-20-1 110-15-1 40-10-8

100-15-1 80-5-2

220-5-1 200-10-1 160-5-1

Balancer, engine . . . . . . . . . . . .. 50-25-1 Ballast. . . . . . . . . . . . . . . . . . .. 280-15-1 Basic engine. . . . . . . . . . . . . . . . 50-5-1 Batteries . . . . . . . . . . . . . . . . .. 100-35-1 Bearings, engine main. . . . . . . . .. 50-20-1 Belt, alternator, adjustment. . . . .. 40-10-8 Belt pulley ... . . . . . . . . . . . . . .. 150-5-1 Bleeding diesel fuel system. . . . .. 40-10-12 Bleeding the brakes . . . .. 40-15-4, 170-10-1 Bleeding remote cylind~rs. . . . . .. 260-15-1 Block, cylinder, engine. . . . . . . .. 50-15-1 Brake cylinder. . . . . . . . . . . . . .. 170-15-1 Brake disks. . . . . . . . . . . . . . . .. 170-15-1 Brake operating valve. . . . . . . . .. 170-10-1 Brakes, hydraulic. . . . . . . . . . . .. 170-5-1 Brake pressure plate ......... , 170-15-1 Brake pressure ring. . . . . . . . . .. 170-15-1 Brake valve ............... " 170-10-1 Breakaway coupler. . . . . . . . . . .. 260-5-1

c Cam dwell, distributor . . . . . . . . . Camshaft, engine . . . . . . . . . . . . . Capacities, tractor. . . . . . . .... . Carburetor (Marvel-Schebler) ... . Carburetor adjustment . . . . . . . . . Carrier, planet pinion ......... . Centrifugal advance, distributor .. . Choke, carburetor . . . . . . . . . . .. Cleaning cooling system . . ..... .

SM-2072 (Nov-56) Litho in U.S.A.

100-25-1 50-25-1 10-10-1 90-25-1

40-10-10 160-10-1 100-25-1

90-25-1 80-5-1

Cleaning fuel tank. . . . . . . . . . . . . Clutch adjustment, engine and contin-

uous running PTO . . .. . . ..... Clutch controls, engine and PTO. . . Clutch, engine . . . . . . . . . . .... . Clutch pedal free travel. ....... . Clutch, PTO . . . . . . . . . . . . . . . . Clutch shafts, engine .......... . Clutch shafts, engine and continuous

running PTO. . . . . . . . . . . . . . . Coil, ignition ............... . Compression test, engine. . . . . . . . Connecting rods, piston ........ . Control valve, rockshaft ....... . Control valve, selective ........ . Controls, brake . . . . . . . . . . . . .. Controls, continuous running PTO .. Controls, rockshaft. . . . . . . . . . . . Controls, transmission driven PTO. Cooler, hydraulic oil .......... . Cooling system, engine . . . . .... . Countershaft ............... . Couplers, breakaway .......... . Couplers, disconnect. . . . . . .... . Crankshaft, engine ........... . Cylinder, block ............. . Cylinder, head .............. . Cylinder, remote ............ . Cylinder sleeves . . . . . . . ..... . Cylinder, steering (Grove tractor) ..

o

Demountable rim wheels . . . . . .. . Description, general. . . . . ..... . Diesel fuel inj ection pumps (Roosa-

1

Page

90-10-1

40-15-2 110-15-1 110-5-1 40-15-2 110-5-1

110-10-1

110-15-1 100-25-1 40-10-6 50-15-1

240-10-1 250-5-1

170-10-1 130-10-1

240-5-1 140-10-1 220-10-1

80-5-1 120-15-1

260-5-1 260-10-1 50-20-1 50-15-1 50-10-1

260-10-1 50-15-1

196-15-1

280-10-1 10-5-1

Master). . . . . . . . . . . . . . . . .. 90-30-1 Diesel fuel specifications. . . . . . . . 90-5-2 Diesel fuel system. . . . . .. 40-10-11, 90-5-1 Diesel fuel system, bleeding of. . .. 40-10-12 Differential. . . . . . . . . . . . . . . .. 120-20-1 Differential lock. . . . . . . . . . . . .. 120-20-1

2 Tractors, 2020 Series­

Index

Page

Difficulties, index of. . . . . . . . . .. 290-5-1 Dimensions, tractor. . . . . . . . . .. 10-10-1 Disk, brake. . . . . . . . . . . . . . . .. 170.15-1 Distributor. . . . . . . . . .. 40-10-7, 100-25-1 Distributor point gap. . . . . . . . . .. 40-10-7 Distributor points. . . . . .. 40-10-7,100-25-1 Distributor timing. . . . .. 40-10-7,100-25-1 Drawbar. . . . . . . . . . . . . . . . . .. 270-5-1 Dry-charged batteries. . . . . . . . .. 100-35-1 Dust cup unloader valve. . . . . . . .. 90-20-1 Dynamometer tests. . . . . . . . . . .. 40-10-14

E

Electrical system. . . . . . . . . . . .. 100-5-1 Electrical system specifications. .. 100-45-1 Electrical tests on tractor. . . . . .. 100-10-1 Electrolyte level, battery. . . . . . .. 100-35-1 Elements, diesel fuel filter . . . . .. 90-15-4 Engine bal~cer. . . . . . . . . . . . .. 50-25-1 Engine balancer drive gear. . . . .. 50-25-1 Engine, basic. . . . . . . . . . . . . . . . 50-5-1 Engine cap screw torques. . . . . .. 40-10-5 Engine clutch ............... , 110-5-1 Engine clutch adjustment. . . . . . .. 40-15-2 Engine installation. . . . . . . . . . .. 20-15-1 Engine lubrication system. . . . . . . 60-5-1 Engine oil filter. . . . . . . . . . . . . . 60-5-1 Engine oil pressure . . . . . . . . . . . 60-5-1 Engine oils. . . . . . . . . . . . . . . . . 30-5-1 Engin.e removal. . . . . . . . . . . . .. 20-10-1 Engine speeds (diesel). . . . . . . . .. 40-10-13 Engine speeds (gasoline) . . . . . . .. 40-10-11 Engine specifications . . . . . . . . .. 50-35-1 Engine timing. . ...... .. 40-10-8, 40-10-12 Engine tune-up. . . . . . . . . . . . . .. 40-10-1

F

Fan assembly, radiator ........ . Fan belt adjustment . . . . . . . . . . . Filter, engine oil ............ . Filter, fuel, diesel ........... . Filter, hydraulic oil .......... . Final drive system. . . . ....... . Flywheel. ................. . Foot throttle ............... . Front axles. . . . . ........... . Front mounted main hydraulic pump Front tires . . . . . . . . . . . . . . . . .

SM-2072 (Nov-66) Litho in U.S.A.

80-10-1 40-10-8

60-5-1 90-15-4

220-10-1 110-5-1 50-20-1 70-10-1

200-10-1 230-5-1 280-5-1

Page

Fuel filter, diesel. . . . . . . . . . . .. 90-15-4 Fuel injection pumps, diesel {Roosa-

Master}. . . . . . . . . . . . . . . . .. 90-30-1 Fuel injection nozzles {Roosa-Mas-

ter} ................... " 90-35-1 Fuel system, diesel . . . .. 40-10-11, 90-5-1 Fuel system, gasoline. . . .. 40-10-9, 90-5-1 Fuel tanks. . . . . . . . . . . . . . . . .. 90-10-1 Fuel transfer pumps. . . . . . . . . .. 90-15-1

G

Gasoline carburetors . . . . . . . . .. 90-25-1 Gasoline fuel system. . . . . .. 40-10-9, 90-5-1 Gasoline fuel specifications. . . . . . 90-5-2 Gears, transmission. . . . . . . . . .. 120-15-1 Governor, gasoline. . . . . . . . . . . . 70-5-1 Ground speeds ........ ; . . . . .. 10-10-2 Guides, valve. . . . . . . . . . . . . . .. 50-10-1

H

Hand throttle. . . . . . . . . . . . . . . . Hi-Lo shift unit .............. . Hitch, 3-point .............. . Horsepower ................ . Hydraulic pump shut-off . . . . . . .. Hydraulic pump specifications . . .. Hydraulic pumps:

Main hydraulic pump . . . . . . . . . Power steering pump. . . . . . . . . Transmission pump ......... .

Hydraulic oil cooler . . . . . . . . . .. Hydraulic reservoir . . . . . . . . . . . Hydraulic system. . . . . . . . . . . . . Hydrulic system tests. . . . . . . .. . Hydraulic valves ............ .

Ignition coil . . . . . . . . . . . . . . . . Inflation chart, tire. . . . . . . . . ... Injection nOZZles (Roosa-Master) .. Injection pumps, diesel (Roosa-Mas-

ter) .................... . Injection pump, timing of ....... . Inserts, connecting rod . . . . . . . . .

70-10-1 125-5-1

240-20-1 10-10-1 230-5-1

230-15-1

230-5-1 190-15-1 230-10-1 220-10-1 220-10-1

220-5-1 220-15-1 220-10-1

100-25-1 280-15-1

90-35-1

90.30-1 40-10-12

50-15-1

Tractors, 2020 Series­Index

L

Liners, cylinder ............. . Load control mechanism . . . . . . . . Lock, differential ............ . Lubrication system, engine . . . . . . Lubrication timetable . . . . . .

M

Main bearings . . . . . . . . . . . . . .. Main hydraulic pump. . . . . . . . . . . Manual steering assembly . . . . . . . Marvel-Schebler carburetor. . . . . .

N

Page

50-15-1 240-15-1 120-20-1

60-5-1 30-5-1

50-20-1 230-5-1 180-5-1 90-25-1

Nozzles, injection (Roosa-Master).. 90-35-1

o

Oil cooler ................. . Oil filter, engine ............ . Oil filter, hydraulic .......... . Oil filter, relief valve ......... . Oil pressure adjustment, engine . . . Oil pump, engine . . . . . . . . . .

p

220-10-1 60-5-1

220-10-1 220-10-1

60-5-1 60-5-1

Periodic lubrication timetable 30-5-1 Piston pins. . . . . . . . . . . . . . . .. 50-15-1 Piston rings . . . . . . . . . . . . . . .. 50-15-1 Pistons. . . . . . . . . . . . . . . . . . .. 50-15-1 Planetary, final drive ......... , 160-5-1 Plugs, spark. . . . . . . . .. 40-10-7,100-25-1 Points, distributor. . . . .. 40-10-7,100-25-1 Power steering (open center) .... , 190-5-1 Power steering (closed center). . .. 195-5-1 Power steering (Grove tractors) . .. 196-5-1 Power steering pump (open center). 190-15-1 Pulley, belt. . . . . . . . . . . . . . . .. 150-5-1 Pumps, diesel fuel injection. . . . .. 90-30-1 Pump, engine oil . . . . . . . . . . . . . 60-5-1 Pumps, fuel. . . . . . . . . . . . . . . .. 90-15-1 Pump, water. . . . . . . . . . . . . . .. 80-15-1 Pump, hydraulic:

Main hydraulic pump . . . . . . . . . Power steering pump. . . . . . . . . Transmission pump ......... .

R

Radiator .................. . Radiator cap . . . . . . . . . . . . . . . . Regulator, voltage ........... .

SM-2072 (Nov-66) Litho in U.S.A.

230-5-1 190-15-1 230-10-1

80-10-1 80-10-1

100-15-1

Remote cylinder selective control valve ................... .

Remove cylinders. . . . . . . . . . . . . Repairing fuel tank ........... . Reservoir, hydraulic oil . . . . . . . . Rings, piston. . . . . . . . . . . . . . . . Rockshaft ................. . Rockshaft control lever. . . . . . .. . Rockshaft cylinder and valve housing Rockshaft flow control valve ..... .

Page

250-5-1 260-15-1 90-10-1

220-10-1 50-15-1 240-5-1 240-5-1

240-10-1 240-10-1

Seat, deluxe. . . . . . . . . . . . . . . .. 210-5-1 Seat, regular. . . . . . . . . . . . . . .. 210-10-1 Selective control valve . . . . . . . .. 250-5-1 Separating the tractor. . . . . . . . . . 20-5-1 Shafts, transmission. . . . . . . . . .. 120-15-1 Shift unit, Hi-Lo. . . . . . . . . . . . .. 125-5-1 Shifter controls, transmission. . .. 120-10-1 Sleeves, cylinder. . . . . . . . . . . .. 50-15-1 Spark plug specifications. . . . . . .. 100-45-1 Spark plugs. . . . . . . . . .. 40-10-7, 100-25-1 Special tools. . . . . . . . . . . . . . .. 300-5-1 Specific gravity, battery . . . . . . .. 100-35-1 Specifications

Fuels .................. . Electrical system .......... . Engine .................. . Hydraulic pumps. . . . . . . . . . . . Power steering (open center) ... . Transmission and differential .. .

Speed control adjustment, diesel .. . Speed control adjustment, gasoline . Speed control linkage . . . . . . . . . . Speeds, tractor ............. . Starting motors (Delco-Remy) ... . Steering, manual . . . . . . . . . . . . . Steering, power (open center). . . . . Steering, power (closed center) ... . Steering, power (Grove tractor) .. .

T

90-5-2 100-45-1 50-35-1

230-15-1 190-20-1 120-25-1 40-10-12 40-10-13

70-10-2 10-10-1

100-30-1 180-5-1 190-5-1 195-5-1 196-5-1

Tanks, fuel. . . . . . . . . . . . . . . .. 90-10-1 Tappet adjustment, valve.. 40-10-6, 50-10-1 Testing electrical system. . . . . .. 100-10-1 Testing hydraulic system. . . . . . .. 220-15-1 Thermostat. . . . . . . . . . . . . . . .. 80-15-1 Three-point hitch. . . . . . . . . . . .. 240-20-1 Throttle control linkage, diesel. . .. 70-10-1 Throttle control linkage, gasoline.. 70-10-1 Timing diesel injection pump. . . .. 40-10-12 Timing distributor. . . . .. 40-10-8,100-25-1

4 Tractors, 20'20' Series­

Index

Pqge

Tire inflation chart ........... " 28,9-15 .. 1 Tire sizes. . . . .. . . . . .. 280'-5-1, 2&:0' .. 10';..1 Tires ........ , . . . ... 280'-5-1; 289,.19,.1 Too!s,special service.. . . .. .. . ao<t5' .. 1 Torque chart. •. , .. . . . . . . . . .. -4O'rol,S-6 Torques,engme cap screw. ,.. . . .. '4O'~lO'ro5 Tractor adjustme~ ..... , ..... ,. 40'.;;1.5-1 Tractorseparation.. . . . . . . . . .. 20'.,.5-1

Clutch hous·mg,. . .. . .. 20'-10' ... 1, ,~O' ... 1,5 ... 1 E~m~ ........ , .. , . .. .. . .20' ... 10'-1 Fmal dr~ve •....• ' .. , .; 26-~-1 Fronte~d,gupport .• v,' . • " 29..."5,,,,1 Bockshaft ....... ;. . . .. ..20~25-1 Tf<},~$m~$sion. . ..... .

Tr~SmiS$lQ~ . ',', ',' " ...•.. " Transmls$i® and'diff~rentjal",speci;,. :;t:i,:,lications" 'i/.'::':'-~" <t, .,-•• ~' "'-)', __ 0 -:t",. _i-:. '. • • ",t'.-~.

l.ssl.on P'tlmp. T, < isSi~)a$llafts~l}dgears .. Tt~SmiSsiQnS'hifter':ciont:tols. . ," T~~tl'bles • ,,'Clutch

20'-20'-1 f120"'5-1

120 ... 25-1 ·'~~O' .. JO-1 ''1'20.;;152:1 t20~,tO':"1

f,29O' ... 5 .. 1 290'.;;'1'5 .. 1

," 2~O'-'25-1 :2~~:"lO ... 1 f~5.;;lO'.;.1

Hydraulic system difficulties .... TransmiSsion difficulties . . . . . .

Tune-up;erigme ............. .

v

P~e 290'-30'-1 290'-20'-1 40'-10'-1

Valve,;,.f;!learatice, engine. . . . . . . .. 40'-10'-6 Valve~,~~tcup\,lnloader . .. 90'-20'-1,91-40'-1 Valve,Hi .... Lo,~hift .. , . . . .. . . . .. 125-15-1 Valve~'~g~kshaitcohtrol. . . . . . .. 240'..;10'-1 y-illve~~eS,ehgine.... . . . . . .. 50'-10-1 Yalve;j,~lective .• control. . . . . . . .. 250'-5-1 Yalves,'~teer~g.. .. 190'-10'-1, 195-10'-1

's 196-10'-1 V!al~e$".prake, .•.. ' .. .;., ..... . Vli!.l'tes " . . , .. . . . . . . .

170'-10'-1 50'-10'-1

220'-10'-1 . . . . . . . . . . .. 10'0'-15-1

.V!~lv€is ,V~ltage,"'~~~~ator

80'-15-1 Whe~l 28O'-5-~~ 280'-10'-1 Wheel """",&hh,,' • . . . . . . . . . . . .. 280'-15-1 Wheels. . 280'-15-1 WIfmg diagr~ms, electtical. . . . .. 10'0'-40'-1