. OPERATION MACHINE OPERATIONS AND CONTROLS 2. Set safety lock lever (2) to the FREE position, and bucket from the ground. 3 - 80 Warming-up Oper ation NOTICE When the hydraulic oil is at a low temperature, d o not carry o ut operations or move the lever sudd enly. Always carry out the warming-up operatio n. This will help to extend t he machine life. p operation is completed. Do not suddenly acc elerate the engine before th e warming-u p operatio n is Do not run the engin e at low idling or high idling continuous ly for more than 20 minutes. (Oil dow n) If it is necessary to run the engine at idling, apply a load from time to tim e or run the engin e at a mid-range speed.
After starting the eng ine, do not immediately st art operatio ns. First, perform the following operations and checks. 1. Turn fuel control dial (1) to the center pos ition betwe en LOW IDLING and HIG speed for about H IDLING and run the engine at medium medium 5 minutes with no load. raise the 3. Operate bucket control lever (3) and ar m control lever (4) slowly to move th of the stroke. e bucket cylinder and ar m cylinder t o the end 4. Operate the buck et for 30 seconds and the arm for 30 seconds in turn fully for 5 minutes. NOTICE When the work equipm ent is retracted, take care th at it does no t interfere with the machine body or ground.