A forklift should be checked properly and given a test run before purchasing it. This applies specifically to trucks being purchased on the Internet. It is essential to find potential problems with trucks bought from businesses on line.
Starting the engine from cold is a good idea. Note whether there is excessive smoke and the ease with which the engine turns over. This is specifically vital with trucks that have IC engines.
Testing the performance of the truck in challenging situations must be included in the test run. A trained operator could maneuver the truck in forward and reverse, up the ramp.
You could perform your own inspection of an IC engine truck. On a clear part of floor, run the truck around for a few minutes while a qualified operator tests the hydraulic functions. Afterward, look at the ground beneath for indications of fluid leakage. Even seemingly insignificant leaking can result in serious problems which will be really pricey to fix later on.
The masts and chains should be inspected by a trained individual. Check with and without a load that the mast operates smoothly. Watch for sticking or 'binding' of the mast. A warning indication is play in the mast channels or between the mast and fork carriage. One more is creeping forward or creeping down of the mast when loaded. These can be symptoms of problems with valve, seals or ram.
If the truck is not new, the mast may have been changed at some time. Make certain that the mast and any fitted attachments adhere to the rating plate on a truck. Check that the sideshift is not sticking when loaded.
Looking closely at the thickness of the heel for damage or wear should be included in the inspection. The manufacturer of the truck specifies minimum thickness. A loose fit could mean the carriage or hanger points are worn. Look for cracks on the arms at heels and mountings.