MSI CRANE SCALE Maintance Manual
MSI
CRANE SCALE
SAFETY
AND
PERIODIC
MAINTENANCE
MANUAL
Safe Rigging, Loading and Operation
Including Suggested Inspection
and Maintenance Procedures
MODEL
SERIAL NUMBER
Measurement Systems International
www.msiscales.com
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M E A S U R E M E N T S Y S T E M S I N T E R N A T I O N A L
S A F E T Y M A N U A L
M S I C R A N E S C A L E
S A F E T Y M A N U A L
M S I C R A N E S C A L E
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M E A S U R E M E N T S Y S T E M S I N T E R N A T I O N A L
S A F E T Y M A N U A L
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Table of Contents
Forward ................................................................................ 3
Safe Operating Guidelines ....................................................4
Operating suggestions .......................................................4
Handling hoist motion ........................................................4
Safe Loading and Rigging Guidelines....................................5
Loading Procedure "Do's" & "Don'ts" - Illustrations .......... 6-8
Recommended Inspection Procedures .................................8
Load Train Visual Inspection Suggestions .............................9
Visual Inspection of Shackles ................................................9
Shackle Field Inspection Areas .......................................... 10
Shackles with Excessive Wear ............................................ 10
Improper Replacement of Pins in Shackle.......................... 11
Overloaded Shackle ............................................................ 11
Shackle Eye with Twist ........................................................11
Scale Hook Inspection .................................................. 11-12
Field Inspection and Repair .................................................12
Recommended Preventive Maintenance ....................... 13-14
Notes ................................................................................. 15
Forward
This manual has been prepared to provide information and
suggestions for safe operation, rigging, inspection, and
maintenance of Measurement Systems International (MSI)
Crane Scales.
It is not intended that the suggestions in this manual take
precedence over existing plant safety rules and regulations,
OSHA regulations, or instructions issued by the crane manu-
facturer. However, a thorough study of the following information should provide a better understanding of operation and
afford a greater margin of safety for personnel and machinery.
It must be recognized that this is a manual of suggestions for
the crane scale operator’s use. It is the responsibility of the
owner to make personnel aware of all federal, state and local
rules and codes and to make certain that operators are
properly trained.
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M E A S U R E M E N T S Y S T E M S I N T E R N A T I O N A L
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Safe Operating Guidelines
Before operating a MSI crane scale, the scale operator should
carefully read and study the appropriate Operation Manual
supplied by
MSI and note any special instructions.
Operating suggestions
1. Do not make lifts beyond rated load capacity of the
crane scale, sling chains, rope slings, etc.
2. Do not operate the crane scale if ropes, slings, cables,
chains, etc. show any sign of defects or excessive wear.
3. Before moving the load, make certain that load slings,
load chains or other lifting devices are fully seated in the
saddle of the crane scale hook with hook latch closed.
4. At no time should a load be left suspended from the
crane scale unless the operator is at the master
switch or push buttons with the power on; and under
this condition keep the load as close to the floor as
possible to minimize the possibility of an injury, should
the load drop. When the crane scale is holding a load,
the crane operator should remain at the master switch or
push buttons.
5. When a hitcher is used, it should be the joint responsibility of the crane operator and the hitcher to see that
hitches are secure and that all loose material has been
removed from the load before starting a lift.
6. Do not lift loads with ropes, slings, cables, chains, etc.
hanging loose.
7. All ropes, slings, cables, chains, etc. should be removed
from the crane scale when not in use. (A dangling cable
can inadvertently snag other objects when the crane is
moving.)
8. Operators should not maneuver a loaded crane scale
over personnel.
Handling hoist motion
After the crane scale hook has been positioned over the load,
lower it until the load can be attached to the scale hook. As
the scale hook approaches this level, reduce the speed so
that the lowering can be stopped smoothly and quickly.
S A F E T Y M A N U A L
M S I C R A N E S C A L E
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If load slings are used to handle the load, the slings should be
fully seated in the saddle of the scale hook. With the scale
hook latch closed, the scale hook should be started upward
slowly until all slack has been taken out of the slings. Then
ensure the load is properly balanced and the slings are
properly positioned.
WARNING!
Loads may disengage from crane scale hook and shackle or
lifting eye if proper procedures are not followed.
A falling load may cause serious injury or death.
The crane scale hook must always support the load. The load
must never be supported by the latch.
Never lift more than the crane scale's assigned Working Load
Limit (WLL) rating.
Read and understand the instructions in this manual before
using the crane scale.
In-line Loading
• CAPACITY RATINGS ON THE
CRANE SCALE ARE FOR IN-LINE
LOADING.
• USE HARDWARE THAT CREATES
SINGLE POINT ATTACHMENTS
AND ALLOWS THE SCALE
FREEDOM OF ALIGNMENT.
Safe Loading and Rigging Guidelines
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