OCR Text |
Show "Make Run" in Climbing Hill With Heavy Trucks Unless the road surface is too rough to warrant it, the best way to climb a hill Is "make a run" at it. Climbing hills In this manner not only makes use of the momentum of the truck, but It avoids overheating the engine, which Is -often the result of running In low gear for any considerable distance. Low gear should be resorted to on a hill, when the engine, with open throttle, throt-tle, slows down, so low that Its operation op-eration becomes labored and jerky or It commences to knock. The maximum maxi-mum safe speeds of trucks are In general, gen-eral, quite low lu comparison with those of passenger cars, especially If the former are geared very low and are equipped with solid tires. A trucR should never be driven so fast that Its engine vibrates excessively. |