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4-1. General
The complete electrical system (with the excep-
tion of the hand-held pendant control and the return
circuit micro-switches) is contained within the base
of the table. The pump motor and the hydraulic
valves are controlled electrically with the pendant
control.
The electrically operated functions are as follows:
- TRENDELENBURG - Head up and down
- LATERAL TILT - Right and left
- BACK SECTION - Up and Down
- ELEVATION - Up and Down
-TOP SLIDE
- LEG SECTION - Up and Down
- FLEX / REFLEX
- KIDNEY LIFT - Up and down
- RETURN TO LEVEL
- BRAKE UNLOCK - Brake release
The power requirements are 120 VAC, 60 Hz, fuse
protected. The main power on-off switch is an
enclosed DPST type and the power cord is a three-
wire, fifteen foot long, UL listed cord with a three-
prong hospital grade plug.
SECTION IV ELECTRICAL SYSTEM
4-2. Components
Refer to figure 4-1 for the relationship of the elec-
trical components.
a. Wires, Connectors, Switches, Fuse - These
provide the path for the various electrical circuits.
b. Relay Box - Contains the step down trans-
former, full wave rectifier, and relay switches. The
relay switches are activated by the pendant control
and in turn energize the solenoid.
c. Hand-Held Pendant Control - Closes micro-
switches to activate relay box. Operates on 5
VDC.
d. Solenoids - These electrically open and
close the hydraulic ports of the mini-valve to direct
the fluid to the correct cylinders. They operate on
120 VAC.
e. Motor/Pump Assembly - 120 VAC, 60 HZ,
200 Watt capacitor induction motor.
4-3. Battery Model Components
The functions of the battery model tables are the
same as the standard 120 VAC models. The
electrical components and operation however, vary
greatly between the two models. To simplify the
troubleshooting procedures, the battery model
tables are covered separately in Section VI.
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