A forklift must be checked well and given a test run before purchasing it. This applies specifically to trucks being bought on the World Wide Web. It is important to find possible issues with trucks acquired from companies 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 essential with trucks which have IC engines.
The test run should include an inspection of the truck's performance in challenging situations. A driver who is trained could operate the truck in reverse and forward, up the ramp.
You can check an IC engine truck yourself. On a clear part of floor, run the truck around for several minutes while a skilled driver tests the hydraulic functions. After that, examine the ground beneath for indications of fluid leakage. Even seemingly insignificant leaking can indicate serious issues which will be costly to repair later on.
A skilled person should check the chains and masts. Check with and without a load that the mast works 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. Another is creeping forward or creeping down of the mast when loaded. These can be symptoms of problems with seals, ram or valve.
If the truck is used, the mast might have been changed at some time. Make sure that the mast and any fitted attachments follow the rating plate on a truck. Check that the sideshift is not sticking when loaded.
Looking closely at the thickness of the heel for wear or damage should be included in the inspection. The manufacturer of the truck specifies minimum thickness. A loose fit can mean the carriage or hanger points are worn. Look for cracks on the arms at heels and mountings.