2 | ERGO INSIGHTS
Can you do it?
Should you do it?
How do you determine if a
lift/lower is acceptable?
Follow these simple steps:
First determine the height and
reach conditions of the
lift. Using the height and reach
dimensions in the table,
determine the corresponding
row and column that applies to
locate your lifting zone.
Frequency indicates how often
the lift/lower has to occur.
The maximum acceptable load
measured (MAL) in kilograms
is located beside the appropriate
frequency in the lifting zone box
identified.
How much is too much?
The short answer? It depends!
Consider:
Frequency/duration
Height/reach
Hand holds
Posture/technique
The ergonomic approach is to
design a task so that most people
can perform it safely. This guide uses
this approach as a starting place.
Zone Legend
Green Optimal
Light Green Satisfactory
Yellow Suboptimal
Red Inadvisable
182 cm
Max vertical reach
shorter individual
Close: 0-34cm
Mid: 34-49cm
Far: 50-65cm
Maximum Acceptable Load (kg)
86 cm
Knuckle height
taller individual
144 cm
Eye height
shorter individual
125.5 cm
Shoulder height
shorter individual
47 cm
Knee height
shorter
individual
0 cm
Floor level
63.5 cm
Knee height
taller individual
Frequency Legend
A-1/shift D-1/min
B-2/hr E-2/min
C-12/hr F-4/min
Determining the
Acceptability of
a Lift/Lower
A-17
B-15
C-13
D-12
E-11
F-10
A-13
B-12
C-10
D-9
E-8
F-7
A-8
B-7
C-6
D-5
E-6
F-4
A-17
B-15
C-14
D-12
E-11
F-10
A-13
B-13
C-11
D-9
E-8
F-7
A-8
B-7
C-6
D-5
E-5
F-5
A-19
B-17
C-15
D-13
E-12
F-11
A-15
B-13
C-12
D-10
E-9
F-8
A-9
B-8
C-7
D-6
E-6
F-5
A-21
B-19
C-16
D-14
E-13
F-12
A-16
B-19
C-13
D-11
E-10
F-9
A-10
B-9
C-8
D-6
E-6
F-5
A-23
B-21
C-18
D-15
E-14
F-13
A-17
B-16
C-14
D-12
E-11
F-9
A-10
B-9
C-8
D-7
E-7
F-6
A-21
B-20
C-17
D-15
E-14
F-12
A-17
B-15
C-13
D - 1 1
E-10
F-9
A-10
B-9
C-8
D-7
E-6
F-6
A-20
B-18
C-16
D-13
E-12
F-11
A-15
B-13
C-12
D-10
E-9
F-8
A-9
B-8
C-7
D-6
E-6
F-5
Horizontal Reach
