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Owner's Manual Presto DXS Series - ECOA CDL & CLT Series
S E C T I O N 5
MAINTENANCE
Generally, the Double Series Scissor Lifts require very little
maintenance. Reasonable care will result in excellent trouble-
free performance.
WARNING!
Never go under or service lift with a load on the table or
with the scissor mechanism unblocked. Always service
the lift in a down position.
All servicing should be done by qualified personnel. Qualified personnel
should be able to read and understand wiring and hydraulic diagrams.
They should be able to troubleshoot live electrical circuits safely and in
accordance with accepted practice.
For safety’s sake
, if in doubt,
please contact your dealer or Presto-ECOA Customer Service Department
at (800) 343-9322. Before servicing the lift, read and understand this entire
section and the section entitled “Operating Instructions.”
Hazards
There are several hazards you should be aware of as you service the lift:
DANGER!
The lift may use a power supply of up to 575 Volts AC.
This voltage can kill. Do not work with the electrical
parts unless you are a qualified electrician!
WARNINGS
• As the lift moves up and down, “pinch points” are
formed as shown in Figure 2. Keep hands, feet, and
loose clothing away from these pinch points. If your
hand or arm or a part of your clothing is caught, you
may be hurt.
• A falling lift can cause severe personal injury.
Before working under the lift remove any load from
the platform, raise the lift and insert the maintenance
devices, as shown in Figure 1. Do this every time you
work under the lift!
WARNINGS
Release of fluids under high pressure can cause
personal injury. Before you open any part of the
hydraulic system, be sure to release the hydraulic
pressure.
CAUTION
•The warning labels on the lift are there for the safety
of the operators. If the labels are worn or missing,
or have been painted over, replace them before
releasing the lift for operation.
WARNING!
If you are going to repair the center pivot pins and
bushings, you must support the lift table in a special
way. Each set of leg plates, on both sides of the
unit, must be clamped together firmly, using large
C-clamps. You cannot use the maintenance devices
shown in Figure 1 – with the pivot pins removed, they
will not support the table top. If you do not support
the lift table correctly, the top may drop suddenly
when you remove the pivot pins. Please contact
Presto-ECOA for instructions.
NOTICE
It is important to use hydraulic fluid with the
correct grade and properties. See the hydraulic oil
specification in this manual, Table 1.
WARNING!
If a hydraulic fitting becomes loose, or if a hydraulic
hose breaks, the hydraulic fluid may escape from the
system under pressure. If the lift is raised when this
happens, it can drop quickly. Someone may be hurt,
or the lift or load may be damaged.
NOTICE
If you continue to use fluid after it has “worn out,” the
moving parts in the system will wear more quickly.
FIGURE 1: MAINTENANCE CHOCK
