Load And Reach Data - MAKINEX PHT-40 Operator's Manual

4. LOAD AND REACH DATA

Unloaded, Pre-Pick Up
R
Loaded Hands Neutral Position, Transporting or Lifting, no brakes applied
L
R
MW
Reach Out at height, Loaded, Brakes applied
L
R
MW
Extended Reach Out, Loaded, Brakes applied >CAUTION<
L
R
MW
Increased risk of forward topple
H
MW
H
H
H
MW Weight of PHT-140 device (40kg)
H Balancing Force applied by Hands
L Weight of the Load (up to 140kg *120kg for all other
attachments)
Reach – horizontal distance from wheel axle to hook
R
•
With no load engaged, to lift the handles and adjust the
reach the user must overcome the weight of the
machine.
•
The amount of force H is about 13kg
• This is called the 'Hands Neutral Position' where the weight of
the load balances against the weight of the PHT-140 machine
leading to little (neutral) weight in the users hands.
•
Force applied by the hands is to adjust height and maintain
balance of load. It can vary as force applied up or down but tends
to be less than 10kg either way.
•
With brakes applied H is no longer Up and Down but is
pivoting about the front wheels – giving better control
Variation of H with different Load (L), Fixed Reach (R) (Hook)
L 50kg 80kg
H 5kg 15kg
R 60cm 60cm
Note about user comfort limit.
Each user must limit the load and reach combination to
what they can manage. With a heavy load, a user may
only be able to comfortably reach out so far. With a
lighter load the same user may be comfortable reaching
out further.
In this position with hands raised above the chest the body's
•
reaction tends more toward pulling the handles rather than
holding the handles down.
•
At a point the user can be pulled off balance
Variation of H with different Load (L), Fixed Reach (R) (Hook)
L 50kg 80kg
H 9kg 20kg
R 75cm 75cm
Possible user comfort limit!
110kg 140kg
23kg 32kg
60cm 60cm
110kg 140kg
32kg 39kg
75cm 75cm
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