CONTROLS AND OPERATION
standard hand signals illustrated to ensure coop-
eration and teamwork.
Connect the left lead, plate first (the left plate
boom pin is solid).
ATTACHING THE LEADS USING A LATTICE
2. Move the crane into position, connect the leads
t o the boom with the lead plates (see figure
pressure for P&H crane should only be
3. Run the main and auxiliary winch cable to
bottom of the leads. Lay the hook blocks on
pressure for Grove crane should only
100 psi (front) and 75 psi (rear).
tag lines (rope) approximately 2 ft. from the
1. Position the crane at the top of the leads, one
boom to approximately 3 ft. from the top of the
Figure 2-11.1. Connect Leads
In high winds (15 or 20 mph) do not move
the crane with the leads raised. Move the
crane at speeds of 2 to 3 mph when the
leads are raised. Use front and rear ground
guides when moving the crane. Move on a
flat, solid surface. Raise the outriggers (if
equipped) before moving the crane.
4. Keeping the boom cables tight at all times,
slowly raise the boom and move the crane toward
the lead section, raising the leads until they are
son will hold each tag line while raising the leads.
5. Hold the tag lines and raise the leads 2 to 3 in.
Raise the outriggers. Move the crane to the ham-
Figure 2-11.2. Raising Leads
mer, set the leads on the ground (lower
outriggers), disconnect the tag lines and recon-
nect the tag lines to the hammer. Remove the lead
angle guides from the hammer.