MAN. 126 rev.4 Use and maintenance manual S19
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5. completely remove the lead seal and unscrew the cursor of the
right electro valve 2'' (Picture 35);
6. unscrew the nut of the right proportional valve 2' (Picture 35) and,
using the 4 size hexagonal key, completely unscrew the same
proportional valve;
7. The same operator or the ground operator takes the hand pump
lever and inserts it into the pump Picture 37.
Picture 37 – lever and hand pump
8. completely unscrew the bolt placed under the (DM distributor)
lever for lifting/lowering of boom 1 (lever 5 in the label) Picture 38.
so that the same lever stays completely lift and blocked;
Picture 38 – lever for the lifting/lowering of boom (the first – black –
starting from the right)