
Page
26
of
37
4. LOAD AND REACH DATA
L
50kg
80kg
110kg
140kg
H
5kg
15kg
23kg
32kg
R
60cm
60cm
60cm
60cm
L
50kg
80kg
110kg
140kg
H
9kg
20kg
32kg
39kg
R
75cm
75cm
75cm
75cm
•
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
Extended Reach Out, Loaded, Brakes applied >CAUTION<
Unloaded, Pre-Pick Up
Loaded Hands Neutral Position, Transporting or Lifting, no brakes applied
Reach Out at height, Loaded, Brakes applied
•
This is called the
‘Hands Neutral Position’
where the weight of
the load balances against the weight of the PHT2-140 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.
MW
MW
Weight of PHT2-140 device (40kg)
H
Balancing Force applied by Hands
L
Weight of the Load (up to 140kg *120kg for all other
attachments)
R
Reach
– horizontal distance from wheel axle to hook
H
H
MW
L
H
MW
L
R
•
In this position with hands raised above the chest th
e 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
•
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)
Variation of H with different Load (L), Fixed Reach (R) (Hook)
Possible user comfort limit!
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.
R
R
L
MW
H
R
Increased risk of forward topple
Summary of Contents for PHT2-140
Page 1: ...Rev 0919...
Page 32: ...Page 32 of 37 9 CHARGER SPECIFICATIONS 3A...
Page 37: ...Page 37 of 37...