18
4111-0008 — April 2017
June 2017
OPERATION
When the leveler is operated an electric motor is
activated (C) which, drives a hydraulic pump. The
hydraulic pump forces oil into the platform cylinder(s)
(D), causing the platform to rise or lower. Releasing
the button will stop the platform from moving (except in
the float mode).
To lower the vertical leveler the LOWER (L) button
will be depressed. The leveler Hoist Cylinder (D) will
extend, an electrical solenoid (H) will activate and
disengage the Storage Prop( not shown). The solenoid
will hold the Storage Prop disengaged for a short
period of time to allow the leveler to lower. The leveler
will start to lower down to the transport vehicle. When
the leveler is about 12” to 15” above dock height the
leveler goes into float mode. You will also hear the
motor make a different sound and you no longer need
to hold the LOWER button. This feature is designed
into the operation of the leveler to allow for the
floating/vertical motion of the transport vehicle during
loading and unloading.
To lower the lip the vertical leveler must not be in the
stored position. Depress the LOWER (L) button and
LIP (K) button at the same time and the motor will
shut off and the lip will lower. To raise the lip, depress
the RAISE (J) button and the LIP(K) button the motor
will run and the lip will raise. The LIP push button is
inactive while the leveler is in the float mode. Also
when leveler is stored.
* Some models are equipped with multiple cylinders.
Theory
A
Control Box
D
Hoist Cylinder
H
Solenoid
K Lip Button
B
Platform
F
Limit Switch
I
Lip Cylinder
L
Lower Button
C
Power Pack
G
Reservoir
J
Raise Button
C
B
I
F
G
H
D
J
L
A
K
Summary of Contents for VS series
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