Versalift VO-452-MHI Operator's Manual page 39

HYDRAULIC JIB EXTENSION (Optional) - A
hydraulic cylinder extends and retracts the jib pole
with or without a load. The cylinder may be pinned to
the jib in 2 different positions (3 positions with the
optional 6.5 ft jib). Each of these positions provide
18" of travel.
The cylinder may be pinned in another position while
under load. To re-pin the cylinder, follow the procedure
below:
1. To lengthen the jib, extend the jib pole to near
the end of the cylinder stroke. To shorten the
jib, retract the jib pole to near the end of the
cylinder stroke.
2. Extend or retract the jib pole slightly, to align
the transfer hole on the top of the jib with the
hole in the jib/winch support structure.
3. Insert the transfer pin through the jib/winch
structure and pole. The transfer pin is stored
in the upper control panel dash.
4. Extend or retract the jib slightly, to remove the
load from the cylinder.
5. Remove the pin connecting the extension
cylinder bracket to the jib pole.
6. Extend or retract (as required) to almost the
end of the cylinder stroke to align the cylinder
with the next hole in the jib pole. Insert the pin
through the extension cylinder bracket and jib
pole.
7. Slightly extend or retract the jib pole to remove
the load from the transfer pin. Remove the
transfer pin and stow it back in the control
panel.
STOWING THE JIB - The jib must be fully retracted
and parallel to the upper boom before stowing the
upper boom. This will prevent the jib from contacting
the turret, outriggers, etc. when the upper boom is
stored.
WINCH - The winch assembly consists of a hydraulic
motor, worm gear speed reducer, drum, and rope.
The rope includes a clevis hook for attaching a load.
A suitable lifting sling or device must be used to attach
the load to the hook. Do not wrap the rope around
the load; this can severely reduce the strength of the
rope.
The winch rope must be treated as a conductor. Dirt,
grease, and moisture absorbed by the rope will make
VERSALIFT VO-452/455/460-MHI
the rope conductive. Therefore, the rope must never
be considered an insulator.
LINE LIFTING ATTACHMENT – An attachment is
available to lift conductors with the jib pole. This
attachment is designed for vertical loads only, and
the jib pole must be within 30° of vertical. Refer to
the Line lifting instruction decal for capacities.
Line Lifting Attachment
Figure 4.8
DANGER:
MAXIMUM LIFTING CAPACITY AS SHOWN BY
THE CAPACITY INDICATOR. OVERLOADING THE
LIFT MAY CAUSE EQUIPMENT FAILURE
RESULTING IN DEATH OR SERIOUS INJURY.
DANGER:
ABRASIVE WEAR, PULLED STRANDS, CUTS,
HEAT DAMAGE, OR OTHER DEFECTS IT MUST
BE REPLACED BEFORE FURTHER USE. THE
RECOIL FROM ROPE FAILURE OR FALLING
OBJECTS CAN CAUSE DEATH OR SERIOUS
INJURY TO THE OPERATOR OR GROUND CREW.
DANGER:
PHASE-TO-GROUND CONTACT OF THE WINCH
LINE WILL REDUCE THE STRENGTH OF THE
ROPE. THE RECOIL FROM ROPE FAILURE OR
FALLING OBJECTS CAN CAUSE DEATH OR
SERIOUS INJURY TO THE OPERATOR OR
GROUND CREW.
DANGER:
UNLESS IT IS SECURELY FASTENED. DO NOT
USE THE WINCH LINE TO WRAP OR TIE AN
OBJECT FOR LIFTING BECAUSE THE HOOK ON
THE WINCH LINE MAY DAMAGE OR CUT THE
ROPE. THE RECOIL FROM ROPE FAILURE OR
4-11
NEVER EXCEED THE
IF THE WINCH ROPE HAS
PHASE TO PHASE OR
NEVER RAISE A LOAD
39049-01 01/17