Vestil CART-1000-2040-CTD, Operation And Maintenance Manual

Page: 9 / 13

Table of Contents
Rev. 10/25/2021 CART-CTD, MANUAL
Table of Contents Copyright 2021 Vestil Manufacturing Co. Page
9
of
13
USING THE CART
A. Loading
All loads applied to the tabletop must be centered and evenly distributed. Loads
should not overhang the deck, i.e. should be entirely contained within the deck area.
The capacity of the cart appears on the data label of your unit (see label 287 on p. 10).
Capacity is the maximum
net
weight the cart can support. Exceeding the capacity
might result in personal injury and/or the cart might be permanently damaged.
Elevate the tabletop by pressing the UP button on the hand control. Lower the deck
by pressing the DOWN button. See your MPU-DC instruction manual for detailed
instructions about the operation of the hand control and modular power unit.
Transport loads with the tabletop lowered. Elevate the tabletop to an ergonomic height
when removing loads or working on items.
B. Propulsion system:
[NOTE : The MPU supplies energy required for all of the cart’s powered functions, i.e. raising and lowering the
tabletop as well as propulsion. Turn off the MPU whenever the cart is not in use to preserve battery charge.
Consult the MPU-DC manual for detailed information about the power unit
.]
The cart is propelled by a battery powered (24VDC), motorized
traction drive system with a differential axle. A programmable
electronic motor controller coordinates motor functions. Although
parameters are programmable, they cannot be changed in the field.
If you wish to change parameters, the controller must be removed
and sent to Vestil for reprogramming.
To use the traction drive turn the ON-OFF selector switch on the
modular power unit (MPU) to ON. The drive system is activated by a
hand grip throttle controller. A toggle switch next to the hand grip
controls the direction of travel (forward or reverse). Push the top of
the switch down to go forward. Press the bottom of the switch down
for reverse. Once the proper direction is selected, slowly twist the
hand grip backward. The farther the grip is twisted, the faster the
speed. Always allow the cart to come to a full stop before reversing
directions.
Turn slowly because the differential drive system
increases speed during turns .
The system will enter sleep mode and shut off if it is left on but not used for several minutes. To reset the
system, simply turn the selector switch off and on again and twist the throttle several times.
BLEEDING AIR FROM HYDRAULIC SYSTEM
If the tabletop lowers extremely slowly or not at all when the DOWN button is pressed, air might be caught in
the cylinder. Air causes a safety feature called a velocity fuse to close. When the velocity fuse is closed, the
tabletop will not lower. To correct this issue, bleed air from the system. A bleeder screw is located at the top of the
cylinder. See appropriate EXPLODED VIEW on page 4 , 5 , 6 , 7 , or 8 . The bleeder screw includes a hose fitting for
a small diameter hose. By attaching a hose to the screw, any oil that escapes during the bleeding process can be
directed into a container for proper disposal.

Unload the tabletop.

Rotate the maintenance stop into position. See diagram in INSPECTIONS AND MAINTENANCE section.

Press the DOWN button until the tabletop is entirely supported by the maintenance stop.

Locate the bleeder valve located at the top of the cylinder (it looks like a grease zerk; see the appropriate
EXPLODED VIEW on page 4 , 5 , 6 , 7 , or 8 ). Hold a rag over the valve. Open it about a half turn with a wrench
(turn the hex until air begins to escape). Oil and air will sputter from the valve.

Jog the motor a few times by briefly pressing and then releasing the UP button. If air continues to escape from
the bleeder valve, jog the motor several more times. Wait at least a few seconds (5-10) between jogs.

Close the valve once air no longer is heard or seen bubbling out of it. Just a clear stream of oil should be seen
flowing from the valve.

Remove the cover from the modular power unit. Check the oil level in the reservoir. If the surface of the oil is
lower than 1 to 1½ in. below the fill port, then add oil. Use anti-wear hydraulic fluid with a viscosity grade of 150
SUS at 100°F (ISO 32 @ 40°C) like AW-32 or Dexron transmission fluid.
INSPECTIONS AND MAINTENANCE
Before putting the cart into regular service, make a written record of its appearance and operation. Pay
particular attention to pivot points and pivot point hardware. Cycle the tabletop up and down. Describe the
motion of the legs and roller. Describe the sound of the power unit as it operates. Also include a description of
HAND CONTROL
UP
DOWN
Throttle toggle
switch
MPU
Hand
grip
ON/OFF
selector switch
Twist grip
backward
*NOTE: Cart design is
subject to change. Your
cart might not look like
the unit in this diagram
Coil
Cord