Manitowoc Published 10-01-12, Control # 044-05 4-9
777 OPERATOR’S MANUAL SET-UP AND INSTALLATION
4
See Figure 4-5 for the rest of this procedure.
5. Perform pre-start checks and start engine.
NOTE: It is normal for system fault alert and operating limit
alert to come on when engine is started.
The system fault alert should go off as engine oil
pressure, and hydraulic oil temperature rise to
normal. If alert does not go off soon after start-up,
determine fault, stop engine, and correct cause of
fault (see Digital Display Readings in Section 3 of
this manual.
The operating limit alert will remain on until boom
electrical cord is connected to boom junction box
on rotating bed.
6. Remove mast-to-butt connecting pins (View F). Store
pins in lugs on mast once mast is raised.
7. Disconnect rigging pendants from storage position on
mast (View E) and connect pendants to upper wire rope
guide on front of boom butt (View G).
8. Raise boom butt to desired operating position as shown
in Figure 4-5. Pay out load line as butt is raised.
9. Disconnect assembly block from front of rotating bed.
10. Position each carbody jack as follows:
a. Remove connecting pin 1 (View A).
b. Rotate jack out and install connecting pin 1 (View
B).
c. Remove connecting pin 2 (View A).
d. Rotate jack down and install connecting pin 2 (View
B).
11. Remove jack pads from storage position (View C) and
connect jack pad to each jack rod with U-shaped pin
(View B).
12. Using controls on front of carbody (View A), extend
carbody jacks fully to raise crane off trailer.
13. Remove blocking from between crane and trailer and
slowly pull trailer out from under crane.
WARNING
Falling Butt Hazard!
Boom butt must be supported on trailer or blocking when
removing mast-to-butt connecting pins. Butt will fall if not
supported when pins are removed.
CAUTION
Boom Stop Interference!
Booming above 10° with mast-to-butt connecting pins still
installed will cause damage to mast cross member.
Operating Note
360° swing is permitted when crane is on jacks with boom
butt in transport position.
To Next Page
Loading...
Need help?
General
