8
Knowhow is the difference
2b
2a
E
A
W
M
K
H
P
F
F
L
S
Fig. 1
N
Component overview
Functional description
The wheel / load is lifted with the help of 2 x 4 lifting rollers (F), which are pressed in underneath the wheel
from both sides. The rollers can be adjusted to the width of the wheel by sliding a strong mandrel. The
adjustable support arm (A) keeps the wheel securely balanced, ensuring stability during handling.
To lift the wheel, move the change-over valve (E) into the lifting position (2b) and pump with the pumping
rod (P). The lifting cylinder positioned inside the frame now pulls the frame with the rollers (F) towards the
wheel, thereby lifting the wheel. A lift will always be heavier in the beginning.
To lower the wheel, move the change-over valve (E) to the lowering position (2a); the wheel will now slowly
lower. If the wheel does not lower automatically, it must be lowered by pumping the pumping rod (P). The
cylinder placed inside the frame now pushes the frame with the rollers (F) away from the wheel, thereby
lowering the wheel.
The frame has a mechanical safety lock (S) which, when activated, ensures that the rollers will not glide
away from each other, even in the event of a hydraulic error.
The pumping rod (P) has a double function; in addition to its pumping function, it is used to manoeuvre the
wheel dolly.
The wheel dolly is fitted with a wheel brake on the back transport wheels, which can be used to brake the
unit.
Pos. Name
A
Horizontal support arm
E.
Change-over valve
F
Lifting roller
H
Vertical telescopic arm
K
Handle for support arm (A)
L
Lock for telescopic arm (H)
M
Lock for support arm (A)
N
Wheel lock
P
Pumping rod
S
Stabilizer safety lock
W
Support roller
To brake / stop lowering of the wheel / load, set the change-
over valve (E) to the
STOP
position (2b).
WARNING
