Forklift Manufacturers Advise on How To Properly Prevent Forklift Malfunctions

I. Preventive Measures

Establish a service-life schedule for components based on manufacturer guidelines. Create a usage log for each forklift, recording details such as the installation date of wear-prone parts and the forklift's operating hours. Compare these records against the service-life schedule and promptly replace any parts that have reached their operational limit.

II. Human-Induced Faults

Examples include: carelessness during carburetor maintenance, where a spring washer fell into the intake manifold, ruining the piston; a loose antifreeze drain plug allowing water to enter the oil sump; and accidental damage to the crankshaft timing gear during repair—creating a protrusion that struck the camshaft timing gear, causing engine failure.

III. Abnormal Noises

Examples include: improper installation of valve guide oil seals causing oil to leak into the exhaust pipe; failure to take action upon hearing abnormal noises, leading to crankshaft bearing failure; and over-tightening connecting rod bolts, causing them to break and resulting in catastrophic engine failure (throwing a rod).

IV. Leak Prevention Measures

Carefully handle all gaskets. Components like oil pans or valve covers have large contact areas that are difficult to seal tightly, making them prone to oil leaks. A leak at the rear crankshaft oil seal allows oil to enter the clutch assembly; this wastes oil and contaminates the clutch disc, causing slippage and burning. Additionally, promptly repair or replace main bearings. If the clearance between the main bearing and the journal becomes excessive, the impact of the crankshaft can compromise the front and rear oil seals. This leads to oil leaking from the crankshaft end or seeping into the clutch, contaminating friction discs, causing slippage, and resulting in operational failure.