Before purchasing a forklift truck, you must ensure that it is well checked and given a test run. This applies specifically to trucks being bought online. It is very important to detect potential issues with trucks acquired from companies on the Internet.
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 that have IC engines.
The test run must include a check of the truck's performance in challenging situations. A driver who is trained could maneuver 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 qualified operator tests the hydraulic functions. Then, look at the ground beneath for indications of fluid leakage. Even seemingly insignificant leaking can indicate serious problems that will be very costly to fix later on.
A trained person should check the masts and chains. Check with and without a load that the mast operates smoothly. Watch for 'binding' or sticking of the mast. A warning indication is play in the mast channels or between the mast and fork carriage. Another is creeping down or creeping forward of the mast when loaded. These can be symptoms of issues with seals, ram or valve.
If the truck is used, 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 wear or damage 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.