AC 433I electric shut-off

Today, my AC 433I diesel engine in my forklift unexpectantly shut-down.  I tried to restart it.  It turns over, but there isn't any light colored exhaust smoke.  So, I think it is not getting fuel?  I checked the electrical line going to the fuel pump shut-off solenoid and it was getting power when the key was in the run position.  So, I am assuming that somethings wrong in my fuel pumps solenoid shut-off?  What should I look for?  What is the procedure to dis-assemble these?  Thanks in advance for any advice.

take out the 3 screws that hold the top cover, that will give you access to the solenoid. test it first, using a jumper wire, put 12v to it while listening close to see if you hear the click. good luck, Ed.