18
4111-0024 — Apr. 2020
© 2020 Systems, LLC
1. Using an external lifting device, support the VSH
leveler in the stored position, with the maintenance
props lowered in the maintenance position and all
hardware tightend by wrench.
2. Lock out the storage prop (
A
) with the prop pin
and clip, then lock-out and tag-out the leveler.
3. Remove the screws holding the stored limit
switch (
B
) in place. Move the stored limit switch away
from the storage prop. See Figure 16.
4. If connected, remove the rue clip (
C
) and
disconnect the lower hoist cylinder mounting pin (
D
).
See Figure 17.
5. For platform-mounted reservoirs, replace the rear
plug on the fluid reservoir with the included breather
cap if not already present.
6. Fully open the down speed flow control valve
(
E
) by loosening the et screw (
K
) and turning knob
(
F
) counter-clockwise (see Figure 18). Record the
number of turns/original setting.
7. Turn ON power to the leveler. Confirm the BLUE
“Leveler Stored” indicator light on control panel is no
longer illuminated.
8. With the cylinder disconnected from the embed,
cycle the hoist cylinder up and down at least 6 times
using the leveler’s own hydraulic power.
9. Reconnect the hoist cylinder rod eye (
G
) to the
base of the embed or carriage by completing the
following steps:
a. Fully extend the hoist cylinder by pressing
and holding the RAISE button until the rod stops
extending and the powerpack goes into pressure
relief.
b. Loosen the jam nut (
H
) and adjust the rod eye
(
G
) so that the center of the rod eye is half way
below the center of the hole of the embed (see
Following start-up, or if the platform is raised using
an external lifting device or the hydraulic system
is opened to atmosphere, air will enter into the
hydraulic system. Whenever this happens, air must
be fully purged from the hydraulic system.
Purging Air From VSH Hydraulic System & Adjusting Rod Eye
Figure 19). After adjusted, tighten the jam nut.
c. To center the rod eye with the embed, tap the
lower button on the control panel until the
cylinder pin (
D
) easily slides through both the
trunnion and rod eye.
d. Install washers (
J
) between rod eye sides and
trunnion to limit rod eye movement, and lock rue
clip (
C
) into place as shown in Figure 17.
10. Reinstall the stored limit switch (
B
). Confirm the
BLUE “Leveler Stored” indicator light on control panel
is illuminated afte.
11. Reset the down speed flow control valve to the
original setting recorded in step 6.
Note:
If original setting was lost or not recorded, flow
control can be set manually by using instructions on
page 30.
12. Once ideal down speed flow control setting is
achieved, lock the adjustment in place by tightening
the set screw (
K
) on the adjustment knob.
13. Raise the maintenance props to the stored
position and tighten all hardware, then remove
storage prop pin and clip.
14. Disconnect the external lifting device and chains
from the lifting bracket(s).
15. Press the LOWER button and bring the leveler to
a 45 degree angle.
16. Cycle lip by pressing the LOWER and LIP
buttons together to lower the lip, then press the
RAISE and LIP buttons together to raise the lip. Lip
cylinder is now purged.
17.
Raise leveler to stored position and top off
hydraulic fluid as required. See pages 26-27 for
correct fluid level and type.
INSTALLATION
File Name: 1751-0229 Rev E
Decal Size: 4 x 1
