Disconnect complete drive shaft when 2. Lift off foam element f r o m base. Thereafter change oil every 25 hours of operation. Remove capscrews holding frame cover to frame, Remove gear shift lever ball. Dipstick assembly must be pushed fully into tube at all times when engine is operating.
Governed ldle Speed Adjustment The shorter spring keeps the engine on governor, even at idle speed. Pull the rope with a quick full arm stroke. Keep oil up to level of filler plug. Open shut-off valve to see if fuel flows freely from the tank. Three speeds forward and one reverse, with standard drive, six speeds forward and two r e - verse with optional Hi-Lo range pulley. The paper will absorb any dirt or filings on the points. If engine does not accelerate properly, re-adjust needle valve to a slightly richer mixture.
Disconnect wire running from starter switch couplings. Installation i s the reverse of r-emoval. This initial adjustment will permit the engine to be started and warmed up prior to final adjustment. At least yearly, clean anc repack with bearing grease. Removing the deposits is easy and will pay big dividends in reliability and increased valve life.
Clean points with a carborundum con- tact point stone. Pull brake band up by hand so that it is tight around brake drum. Add oil regularly after each 5 hours of operation. T o compensate f o r belt s t r e t c h o r other variances it may be necessary to move idler pulley G Fig. Oil F o a m Starter. Release throttle - engine should accelerate without hesitation or sputtering.
Final Adjustment Turn needle valve in until engine misses lean mixture , then turn it out past smooth operating point until engine runs unevenly rich mixture. Caution: Valve may be damaged by turning it in too far. If the brake does not hold properly when the pedal is pushed all the way forward, reduce slightly the spacing between the locknuts and the brake band. When en- gine starts, open choke gradually. D - Put s c r e e n inside element. Keep battery snugly fastened in place and check battery cables for tight connections. Disconnect ignition w i r e and choke and throttle cables.
If tractor is not used for an extended period dur- ing winter, remove battery and s t o r e in a fully charged condition in a cool place. Air leaks in manifold or carburetor coi8 tions. De- tergent oi Is keep the engine cleaner and retard the formation of gum and varnish deposits. Scrape and wire brush the lead and carbon deposits from cylinder head and combustion chamber. Under torque will allow ex- two capscrews within the R H. Leaving your tractor outdoors, exposed to the elements, will result in materially shorten- ing its life. When cleaning material out of the hosesor blower of the vacuum collector be sure to stop both tractor and blower engines and wait until all moving parts have stopped before removinghoses.
For practical operation, the horsepower loading should not exceed 85% of these ratings. Replace lost or damaged safety decals immediately. Turn each screw in with wrench until screw head is lightly seated. Remove blower housing and clean regularly. Avoid spilling gasoline on a hot en-- - gine - this may cause an explosion and serious iniury.
F i l l the crankcase t o overflowing. Installation is the reverse of removal. Keep oil up to level of filler plug. Rinse until water remains clear. Disconnect fu-el line at tank. Rotate crankshaft until points open to widest gap.