Andco Eagle Manual de instalação - Página 5

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7.1 Acceptable Lubricants

Standard lubricants and acceptable substitutions for

use in the actuator in Table 3.

Table 3 - Standard and Substitute Lubricants

Recommended

AeroShell Grease 6

Substitute

Lubriplate MAG-1

Litholene HEP1

Mobilux EP1

Gulfcrown EP1

8.0 Troubleshooting Guide

In the event of a problem with your Andco actuator,

make the following preliminary checks before

calling the factory for assistance.

The actuator's rod will not extend or retract.

a. Check for a blown fuse or circuit breaker in

the wiring.

b. Check for loose wiring.

c. Check if the motor has overheated and activated

the thermal switch.

d. Check that the limit switches are set correctly.

e. Check the binding in the load being actuated.

f. Check if a capacitor lead is open.

g. Check if the drive nut is damaged or worn, by

disconnecting the actuator from the load and

pulling or pushing on the extension rod.

The actuator only actuates in one direction.

a. Check that all wiring connections are secure.

b. Check that the position limit switches are

set correctly.

c. Check for an excessive external load on the

actuator in one direction.

The actuator is excessively noisy.

a. Check for a damaged bearing.

b. Check for a damaged gear (chipped tooth,

missing teeth, etc.)

c. Check for a damaged screw.

Actuator exhibits high motor current.

a. Check for low line voltage.

b. Check for external binding related to the load

being actuated.

c. Check for excessive external load being

actuated.

d. Check for loss of lubricant.

e. Check the extension rod for excessive

contaminates.

If you still have a specific problem with your Andco Eagle

Actuator after making all of the above checks, contact

GE for further assistance.

Manufacturer

Shell Oil Products

Manufacturer

Fiske

ARCO

Mobil

Gulf

9.0 Optional Equipment

9.1 Gear Driven Potentiometer

This optional assembly is directly driven by the operation

of the actuator and gives the capability of providing

a continuous, linear output signal directly

proportional to the actuator's stroke. The signal can be

interfaced with automatic control equipment to position

or sense the actuator at any desired stroke between

fully extended and fully retracted. The potentiometer

assembly is mounted directly to and driven by the

geared position limit switch assembly. Characteristics

of the potentiometer are 1000 ohm total resistance

±2.0% linearity, 1 watt at 40°C power rating. Input

gearing to the potentiometer is factory selected to

accommodate the full range of the actuator's strokes

and the acme screw pitches. The potentiometer has

been factory adjusted so the 0 and 1000 ohm resistance

points correspond, respectively, to the fully extended

and fully retracted rod positions. Field adjustments

may be made by loosening the jam nut holding the

potentiometer (64) to the mounting bracket (65). Rotate

potentiometer to the desired position and tighten the

jam nut. Potentiometer only to be connected to a class II

power source.

For units that utilize the last portion of the actuator

stroke only; the potentiometer gearing must be

disconnected if the unit is to be retracted beyond

the "zero" point.