Table 2-1. Operators Level Preventive Maintenance Checks and Services (Monthly) (CONT).
Not Fully Mission
(j) Move BOOM control lever (3) to up
position until boom (4) is at 45 degree angle.
Do not let cable unwind and become slack or cable may get tangled on drum.
(k) Move HOIST control lever (1) to down
position to pay out cable until hook (2) touches
ground. Observe that the cable moves freely.
(l) Move BOOM control lever (3) to down
position and lower boom as far as possible.
(m) Turn crane POWER switch (8) to OFF.