
3-27
CD25
OPERATING CONTROLS AND PROCEDURES
3
Published 1-06-2017 Control # 579-01
OPERATING PRACTICES
Handling a Load
The crane must not be loaded beyond the specifications of
the rated
Load Chart
. The load being lifted must be within the
rated capacity of the crane.
When loads which are not accurately known are to be lifted,
the operator of the crane must ascertain that the weight of
the load does not exceed the crane ratings at the radius at
which the load is being lifted.
Attaching the Load
The hoist rope must not be wrapped around the load as the
wire rope will be damaged.
The load must be attached to the hook by means of slings or
other devices of sufficient capacity.
Holding the Load
The operator must not leave the controls while a load is
s u s p e n d e d . A n e x c e p t i o n t o t h i s i s u n d e r t h o s e
circumstances where a load is to be held suspended for a
period of time exceeding normal lifting operations, the
operator may leave the controls provided that, prior to that
time, the appointed individual and operator establish the
requirements for restraining the boom hoist, telescope, load,
swing and outrigger functions, and provide notices,
barricades or whatever other precautions may be necessary.
No person should be permitted to stand or pass under a
suspended load.
Moving the Load
•
The person directing the lift must see that:
-
The crane is level and where necessary, blocked.
-
The load is well secured and balanced in the sling or
lifting device before it is lifted more than a few
inches.
-
The lift and swing path is clear of obstructions.
•
Before starting to lift the load, the following conditions
should be noted:
-
That the boom when extended, is laterally straight.
-
That the hoist rope is not kinked or damaged.
-
That multiple-part lines are not twisted around each
other.
-
That the hook is brought over the load in such a
manner as to minimize swinging.
-
If there is a slack condition in the wire rope, it must
be determined that the rope is seated on the hoist
drum and in the sheaves as the slack is removed.
-
The effect of ambient wind on the load and crane
stability.
•
During lifting operations care must be taken that:
-
There is no sudden acceleration or deceleration of
the moving load.
-
Load, boom and other parts of the crane do not
contact any obstruction.
•
The load must not be lowered below a point where less
than three full wraps of rope remain on the hoist drum.
•
When two or more cranes are used to lift one load, one
designated person shall be responsible for the
operation. That person must analyze the operation and
instruct all personnel involved in the proper positioning,
rigging the load and the movements to be made.
Decisions such as the necessity to reduce crane ratings,
load positions, boom location, ground support and
speed of movement must be in accordance with this
determination.
•
When rotating the crane with a load, sudden starts and
stops must be avoided. Rotational speed must be such
that the load does not swing out beyond the radius at
which it can be controlled. A tag or restraint line must be
used when rotation of the load is hazardous.
Travel on Slopes
Crane operators need to exercise caution whenever
operating this crane on uneven surfaces. Travel on slopes is
permitted as long as the following conditions are met.
•
The slope side-to-side or fore-and-aft shall not exceed
15% (8.5 degrees), and travel must be on an improved
surface or on hard-packed dry earth having a minimum
0.5 coefficient of adhesion.
•
Travel must be limited to a forward direction only.
•
Travel must not exceed a speed of 1 mph.
•
All boom sections must be fully retracted.
•
The boom extension must be in the stowed position or
removed from the crane.
WARNING
When lifting at high boom angles with an extended boom,
it is crucial to maintain proper side slide pad adjustment.
Visually check the lateral straightness of the boom before
raising the load. Lifting with a boom which is not visually
straight may cause boom failure and could result in injury
or death.
Reference Only
Содержание CD25
Страница 5: ...Operator Manual CD25 R e f e r e n c e O n l y ...
Страница 6: ...R e f e r e n c e O n l y ...
Страница 14: ...TABLE OF CONTENTS CD25 OPERATOR MANUAL TOC 6 THIS PAGE BLANK R e f e r e n c e O n l y ...
Страница 18: ...INTRODUCTION CD25 1 4 Published 1 06 2017 Control 579 01 THIS PAGE BLANK R e f e r e n c e O n l y ...
Страница 55: ...2 37 CD25 SAFETY INFORMATION 2 Published 1 06 2017 Control 579 01 8496 1 FIGURE 2 10 R e f e r e n c e O n l y ...
Страница 66: ...SAFETY INFORMATION CD25 2 48 Published 1 06 2017 Control 579 01 2 48 THIS PAGE BLANK R e f e r e n c e O n l y ...
Страница 100: ...CAPACITY CHART CD25 4 4 Published 1 06 2017 Control 579 01 THIS PAGE BLANK R e f e r e n c e O n l y ...
Страница 150: ...MAINTENANCE CD25 6 40 Published 1 06 2017 Control 579 01 THIS PAGE BLANK R e f e r e n c e O n l y ...
Страница 152: ...ADJUSTMENTS CD25 7 2 Published 1 06 2017 Control 579 01 THIS PAGE BLANK R e f e r e n c e O n l y ...
Страница 156: ...8 4 SPECIFICATIONS CD25 Published 1 06 2017 Control 579 01 Boom angle Maximum 80 Minimum 0 R e f e r e n c e O n l y ...
Страница 159: ...R e f e r e n c e O n l y ...
Страница 160: ...R e f e r e n c e O n l y ...