Good day everyone.
we have one forklift in our workshop. for now im the only one working here. no one to ask. so guys i hope you can help me with this forklift. i have no error to depend. this forklift have very weak traction. hydraulic Very good. Lift/Tilt/Sideshift.

But when it come to traction its very weak. Forward and Reverse.
in a level area you can use it very well. but when it comes to elevated area thats it. you will just stuck there you cannot go up. until another forklift comes and push it upward.

i dont have any idea whats wrong with this.
thank you in advance.