A forklift must be checked correctly and given a test run before purchasing it. This applies specifically to trucks being acquired on line. It is important to detect potential issues with trucks bought from companies on the Internet.
Be certain to start the engine from cold, and note the ease with which the engine turns over and whether there is excessive smoke. This is especially crucial with trucks that have IC engines.
Testing the performance of the truck in tough situations should be included in the test run. A driver who is trained could maneuver the truck in reverse and forward, up the ramp.
You can inspect an IC engine truck yourself. On a clear area of floor, run the truck around for several minutes while a trained operator tests the hydraulic functions. Then, look at the ground underneath for indications of fluid leakage. Even seemingly insignificant leaking can lead to serious problems which would be very costly to fix later on.
A trained person should inspect the masts and chains. 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 fork carriage and mast. One more is creeping down or creeping forward of the mast when loaded. These could be signs of issues with valve, seals or ram.
The mast might have been changed at some time if the truck is used. 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 must 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. Watch for cracks on the arms at mountings and heels.