Oliver Cletrac HG Tractor Full Service & Repair Manual

POWE R- FLE X I B I LITY- PE R FO RMA NeE Your new Oliver "Cletrac" Model HG is the only crawler tractor of its kind- built specifically for the diversified farm. Its design is the result of more than 30 years of continuous field testing and improvement. We know that its amaz- ing versatility, power and ruggedness will bring downright sa action in all your farm operations. Team up with your Oliver dealer in prolonging the service life of your valuable Model H G. There are extra dividends in keeping it in the best condition ... and your Oliver dealer is in the best position to help you. He will supply you with genuine replacement parts and provide specialized overhaul supervision. 'The OLIVE R Corporation

INDEX Tractor Specifications Lubrication Maintenan ce Chart Lubrication Maintenance Schedule Oper a ting Instructions Winter Operation Storing the Tractor Ordering Parts Engine Clearances Electric Starting and Lighting GROUP INDEX Group 100 Engine Group 200 Cooling System Group 300 Air Cleaner Group 400 Fuel System Group 500 Governor Group 600 Ignition Group 800 Tie Bar Group 900 Clutch Group 1000 Transmission Group 1100 Differential Group 1200 Final Drive Group 1400 Track Frame Group 1500 Track Group 3000 Power Pulley and Take-Off SPECIAL EQUIPMENT Group 3100 Electrical Equipment Pag e No. 1 2 3 4 to 6 inc. 6 6-7 7-8 13 51 to 57 i nc . 9 to 20 inc. 21 22 23-24 24-25 26 to 30 inc . 30 31 to 34 inc . 35-36 38 to 41 i nc . 42 to 44 inc. 45 to 48 in c. 49-50 50 51 to 57 in c.

IMPORTANT INSTRUCTIONS STUDY BEFORE USING THIS MANUAL CERTIFICATE OF DELIVERY - Each OLIVER "Cl e trac" tractor is given a rigid operating test and final inspection at the factory before shipment and also a thoro service inspection by the Dealer before delivery to purchas e r. The Certificate of Delivery, which includes information pertaining to the tractor and accessories, special equipment, class of work, name and address of purchaser , etc., is the basis of the service history record maintained by the home office. USE OF INSTRUCTION MANUAL - This book is divided into tractor functional groups numbered the same as the HG Parts Book. Groups are listed in numerical order thru the book; however, some numbers may be omitted as the groups are set up according to a master nwnerical group list for all models of OL I VER tlCIetrac" tractors, and individ- ual models do not use all master groups. Where capitalized words, such as "TRACKS", "COOLING SYSTEM" , etc., appear in this book, they are "key" words to subjects in another part of the book and should be referred to for detailed instructions. INSTRUCTIONS FOR OPERATION AND CARE - Although th e Cletrac is simple to operate and care for, it is important that the operator be thoroly instructed, at the time of delivery, in the proper use and care of the tractor. This is part of the Dealer's delivery service. Complete instructions regarding daily care and maintenance of the tractor are found in this book. It should be thoroly studied by the operator before attempting to drive the tractor, and should be referred to whenever in doubt. The manner in which a tractor is operated and cared for during the first 100 workin8 hours determines its future life, freedom from unnecessary troubles and de- lays, etc. The duty of every operator placed in charge of a tractor is to strictly adhere to instructions received when machine is delivered and to the instructions in The Instruction Manual. For the first 100 working hours, use one grade lighter engine crankca se oil than recommended under ENGINE LUBRICATION according to temperature ranges. Change oil every 30 working hours during this "break in" period. LUBRICATION AND MAINTENANCE - Proper lubrication and maintenance are essential to satisfactory performance. Follow the maintenance schedule shown in th e front part of this book. After the first 100 hours operation, tighten all nuts, bolts , and cap screws. Then keep all bolts, nuts, and connections tight at all times . At least once each mt;:lnth make a thoro check of the entir e tractor and occasion- ally have complete service inspection made by the Dealer's Service Representative, who will call attention to any repairs or adjustments needed at that time or in the near future. Advice to the operator of certain features concerning operation or lack of care may save the owner considerable time and expense. Dirt is your worst enemy. Before removing inspection covers, plugs, etc., from any part of the tractor, thoroly clean all dirt away from these parts. Keep oil and grease containers clean and well covered when not in use. Do not allow dust to accu- mulate in them . Keep all breather caps in place, except when servicing. ANY PROBLEM WHICH MAY ARISE SHOULD BE RErERRED IMMEDIATELY DEALER. REGARDING PROPER CARE AND MAINTENANCE OF THE TRACTOR TO THE SERVICE DEPARTMENT OF YOUR OLIVER "CLETRAC"

ALPHABETICAL REFERENCE Page Group Accessories. Air Cleaner. 'Battery A B Before Starting Tractor. Carburetor Clutch Cooling System Connecting Rods. Crankshaft Journal Dimensions 'Cut-Out Relay Differential C D Drawbar and Hitching Driving Instructions E 'Electrical Equipment. Engine Clearances. Engine Lubrication Fan. . Final Drive . Fuel Strainer . Gear Shift F G 8 22 54 4 23 31-34 21 17-18 13 51-52 38-40 5 5 51-57 13 9 21 42-44 24 37 'Generator 52&56- 57 Genuine OLIVER "Cletrac" Parts. 8 Governor 24-25 L Lower Track Wheel. Lubrication Maintenance Chart. Lubrication Maintenance Schedule M Magneto - Model "C". Magneto - Model "X". Main Bearings. 46-47 2 3 26-27 28-29 15-17 300 3100 400 900 200 100 100 3100 1100 3100 100 100 200 1200 400 1000 3100 500 1400 600 600 100 a Oil Filter. Oil Pan and Screen. Oil Pressure Adjustment Oil Pressure Gauge . Oil Pump. Ordering Parts. P Page .10 .10 .11 .11 .11-12 .7 Pistons .18-19 'Power Pulley and Take-Off 50 'Power Pulley and Take-Off Operation .6 -Power Pulley and Take-Off Specifications. .1 R Rear Sprocket Wheel .44 S Spark Plugs Starting the Engine *Starting Motor -Starting Switch. Steering Bands. -Step-Voltage Control Stopping the Engine Storage Tie Bar Timing Gears and Camshaft. Track Frame T Track Frame Guide &: Spring Assy. Tracks. Tractor Specifications. Tractor Speeds. Transmission. Valve Timing. Valves. V -Voltage Regulator. W Winter Operation. Winter Overhauling. *Wiring Diagram Wrench Tension. .30 .4 53 & 57 51 & 55 .41 .55-56 .4 6-7 .30 .19-20 .45 .48 . 49-50 .1 .1 .35-37 .13 .14-15 .51 - 52 .6 .7 53 & 55 .13 -Special Equipment Group 100 100 100 100 100 100 3000 1200 600 3100 3100 1100 3100 800 100 1400 1400 1500 1000 100 100 3100 3100 100

SPECIFICATIONS STANDARD MODEL HG Number of Cylinders Bore Strok e Numb e r of Main Bearings Number of Camshaft Bearings R.P.M . - Gov erned Ignition Clutch Diameter - Single Plate Fuel Tank Capacity Crankcase Capacity 4 3-1/8 inch 4 inch 3 4 1700 High-T e nsion Magneto 9 inch 12 gallons 1-1/4 gallons 2-3/4 g allons Cooling System Capacity Diff e rential and Transmission Oil Capacity 2 gallons - Add 2 extra quarts when using power pulley. Final Drive Capacities (Each) Track Sho e Width 1-1 /2 pints 6 inches HG-31 HG - 42 HG - 60 HG - 68 Length Overall 102-1 /2 inch 91 inch 91 inch 91 Width Overall 41-1/2 inch 52-1/4 inch 70-1 /4 inch 78-1 /4 Tracks - Center to Center 31 inch 42 inch 60 inch 60 TRACTOR SPEED AT GOVERNED MOTOR SPEED Low Gear 2. 02 miles per hOllT Second Gear 3. 19 miles per hour High Gear 5.25 miles per hour Reverse Gear 2. 35 miles per hour EXTRA EQ;JIPMENT SPECIFICATIONS POWER PULLEY AND TAKE-OFF Power Pulley Diameter Width of Face Operating Speed P.T.O. Belt Speed (Size Power Take-Off Connection (Type *Speeds and sizes conform to A. S.A .E. standards . - 1 - 8- 1/2 inches 6-1 /2 inches *550 R.P.M. *2315 feet per minute *1-3/8 inch *6B spline inch inch inch

OLIVER "Cletrac" MODEL HG MAINTENANCE CHART - 2 -

OLIVER "Cletrac" MODEL HG MAINTENANCE SCHEDULE IMPORTANT - Study the "Instruction Manual", Always clean away all dirt before removing inspection covers, filler plugs, etc., to prevent dirt from entering com- partments. Use clean oil and containers. Use high quality oil and grease for lon ger tractor life, better operation and to prevent loss of operation time. CHART TIME NUMBER Starting Each Day Every 30 to 60 Working Hours or Once a W ee k Every 100 to 300 Working Hours or Twice a Year 1 2 3 4 5-6 7-7A 8 9 10 11 12 3-13-14 15 16 17 2 MAINTENANCE OPERATION COOLING SYSTEM - (Capacity 11 quarts.) Keep filled with clean, soft water or anti - freeze. AIR CLEANER - (Capacity 1 pint.) And at intervals vary- ing from 1 to 10 hours, remove cup, clean, and refill to oil level indicated on cup baffle with light en - gine oil (SAE 20W). Remove prefilter from under cleaner body, also, crankcase filler breather, clean, reoll and replace. CRANKCASE - (Capacity 5 quarts.) And at 8 to 10 hour intervals, check oil level. Keep to 4/4 mark on gauge. Use SAE lOW below 10 0 + F., SAE 20W from 10 0 + to 32 0 F., SAE 30 above 32 0 F. CLUTCH - Add 3 or 4 shots of oil, from oil can, to throwout bearing, using same oil as used in crankcase. Check free pedal travel . DIFFERENTIAL AND TRANSMISSION - (Capaci ty 8 quarts.) Check oil level at plug on side of case. If low, add oil thru filler plug on tog of case . Use SAE 30 below 32 0 F., SAE 40 from 32 to 70 0 F. SAE 60 above 70 0 F. When power pulley is attached, add 2 extra quarts of oil. FINAL DRIVES - (Capacity 1-1/2 pints each side.) Check oil level. If low, add oil, using same weight as used in DIFFERENTIAL AND TRANSMISSION. FUEL STRAINER - Check for water and sediment and clean if necessary. TRACK WHEEL BEARINGS - Clean all fittings. Oil Bearings every 10 working hours. When operating in mud or water , oil every 5 working hours and at end of day. Use SAE 20W below 0 0 F., SAE 30 from 0° to 32° F., SAE 40 from 32° to 70° F., and SAE 60 abov e 70 0 F. TRACK FRAME SUPPORT BUSHINGS - Clean fittings and fill with same oil as used in TRACK WHEELS. TRACK FRAME GUIDE BUSHINGS - Clean fittings and fill with same oil as used in TRACK WHEELS . FAN - Remove plug and fill with same oil as used in crankcase. Keep belt slack 1/2 to 3 /4 inch. CRANKCASE AND OIL FILTER - Change oil. In extreme heat or dust conditions, c hange every 30 hours. Remove drain plugs from filter and oil pan and drain thoroly. Replace plugs and fill to 4/4 mark on gauge. Repla ce filter when oil discolors between oil changes. Wash all filler breather cap thoroly and saturate with oil. DIFFERENTIAL AND TRANSMISSION Drain and refill with correct weight of oil. FINAL DRIVES - Drain by re moving drain plug, and refill with correc t weight of oil. MAGNETO - Every 200 hours on Model "C" magneto, remove plu g and fill to level of hole with SAE 20 engine oil. Model "X" magneto has no external lubrication pOints. AIR CLEANER - Remove complete assembly, wash in gaso - lin e, and pour light oil over element. In extreme dust conditions, wash assembly every 100 working hours. - 3 - PAGE NUMBER 21 22 9-10 31-32 35-38 42 24 45 45 45 21 9-10 35-38 42 26-28 22

OPERATING INSTRUCTIONS BEFORE STARTING TRACTOR MODEL HG Examine tractor for any damage caused by shipping or unloading. Check the oil level in CRANKCASE and add oil if necessary. Crankcase OIL FILLER and BREATHER CAP should be oiled to prevent dust being drawn into crankcase. Make sure COOLING SYSTEM is full of clean cooling solution. Fill the gasoline tank with good grade gasoline - 70 octane. Make sure AIR CLEANER has received proper servicing. Check TRANSMISSION, DIFFERENTIAL, and FINAL DRIVE oil levels. o i1 all LOWER and FRONT TRACK WHEELS with gun supplied. 1. SH I FT I NG LEVER 2. GASOLINE SHur-GFF VALVE 3. THRonlE Il. OIL PRESSURE GAUGE ST ARTING THE ENGINE Be sure gear shift lever is in neutral position. Open shut-off valve on gasoline strainer . Open the throttle to off idle position. Hold choke in full choke position while cranking engine two quarter turns; release choke and continue to crank engine. (In cold weather, it may be necessary to use choke slightly more.) Do not attempt to spin the engine, as the magneto is equipped with an automatic impulse which furnishes a better spark for starting. Engine should start on third or fourth quarter turn. When engine starts, observe OIL PRESSURE GAUGE. If gauge fails to register, stop engine and correct cause. 1. CHOICE 2. CRANK ). GROUND BUTTON STOPPING THE ENGINE After completion of work, let engine idle about five minutes, then press ground button on magneto . If tractor is left to stand for any length of time, shut off gasoline at the gasoline strainer. If tractor must stand without shelter, cover the exhaust and intake pipes to exclude rain or snow. - 4 - • •

Oliver Cletrac HG Tractor Full Service & Repair Manual

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