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(7) Check the safety devices and make sure that all of the safety devices work properly.

Caution: Always check that the work range limit system is working correctly. For detail, see the following clause of “2. Pre-start checks for Work range limit system” . (8) Check the hydraulic components, hoses and pipes for oil leakage.

(9) Check the boom telescoping wire ropes for any damage.

(a) No wobble or unsteady movements when telescoping the boom. (b) No damage on the wire rope ends.

(10) Elevate the platform, then make sure that the platform does not descend naturally.

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(11) If there are no abnormalities or problems so far, step on the platform and check the following items.

(a) Lower the boon under the horizontal, extend the boom about one meter and set the travel speed select switch to “High” and “Mid” positions. Then, make sure that the machine travels in the low speed. (b) Retract the boom fully, raise the boom more than 5 degrees over the horizontal and set the travel speed select switch to “High” and “Mid” positions. Then, make sure that the machine travels in the low speed.

(c) Conduct the boom raising and lowering operation and make sure that the boom raising and lowering speed slows down corresponding to the boom extended length. (The boom raising and lowering speed becomes slower, the further the boom is extended.)

(d) Conduct the boom rotating operation and make sure that the boom rotating speed slows down corresponding to the outreach of the platform. (The boom rotating speed becomes slower as the platform outreach is increased.) (e) Rotate the platform and make sure that the platform rotates smoothly without excessive free play.

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