Before purchasing a forklift truck, you should make sure that it is well checked and given a test run. This applies especially to trucks being bought online. It is really important to find potential problems with trucks bought from companies on line.
Be sure to start the engine from cold, and note the ease with which the engine turns over and whether there is excessive smoke. This is specifically crucial with IC engine trucks.
Testing the performance of the truck in challenging situations should be included in the test run. An operator who is qualified could drive the truck in reverse and forward, up the ramp.
You could check an IC engine truck yourself. On a clear area of floor, run the truck around for a few minutes while a trained driver tests the hydraulic functions. Afterward, examine the ground underneath for indications of fluid leakage. Even seemingly minor leaking could result in serious issues which would be very pricey to repair later on.
A trained individual should inspect the chains and masts. Check with and without a load that the mast operates well. Watch for 'binding' or sticking of the mast. A warning sign 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 could be symptoms of issues 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 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 wear or damage must be included in the inspection. The truck's manufacturer 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.