Model 2120 Tractor TM-4252 (Dec-70) General Information 10 Engine and Tractor Tune-up 20-3 ENGINE TUNE-UP - Continued Service Specifications Reference ENGINE LUBRICATION SYSTEM Check engine oil pressure 50 to 60 psi (3.5 to 4.2 kg/cm2) at 2500 rpm Section 20, group 30 COOLING SYSTEM Clean and flush cooling system ro_ | "Fundamentals of Ser¬ vice, Engine" manual Check radiator hoses for damage and leaks Clear radiator core of restrictions CHECKING ENGINE PERFORMANCE After the engine has been tuned up as Compare measured performance in HP with output explained above, determine powershaft measured before carrying out "Engine tune-up". d horsepower by means of a dynamometer.
see "Fundamentals of Service, Engine" manual. TRACTOR TUNE-UP After carrying out engine tune-up, make the following adjustments on the tractor: Service Specifications Reference ENGINE CLUTCH Adjust clutch pedal free travel Approx. 1 in. (25 mm) Section 50, group 5 FRONT WHEELS Clean and lubricate front wheel bearings Section 80, group 15 Adjust front wheel bearings Section 80, group 15 Check toe-in 1/8 to 1/4 in. (3 to 6.5 mm) Section 60, group 5 Check torque of front wheel bolts 87 ft.lbs (12 mkg) HYDRAULIC BRAKES Bleed brake system Section 60, group 15 Printed in Germany