Andco Eagle Panduan Instalasi - Halaman 3
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to cause excessive dehydration or gradual carbonization
of any organic dust deposits on the actuator enclosure.
The grounding lug on the actuator enclosure exterior
must be wired to a suitable grounding system with a
minimum of #10 AWG wire as noted in the electric wiring
diagram provided with the actuator.
4.0 Geared Position Limit Switch Adjustment
The geared position limit switches have been preset at
the factory to trip and interrupt the electric control for
the extend and retract positions according to specified
stroke. Final limit switch adjustment must be done at
installation. Set the extended and retract limit switches
to the positions required per the application, the
setting is to be done in accordance with the following
procedure.
CAUTION
BURN HAZARD
Possible hot surfaces. Keep hands clear of surface. Allow surface
to cool before performing any maintenance.
WARNING
Disconnect all electrical power to the actuator prior to removing
the limit switch compartment cover and performing any setting
adjustments. Unit may have more than one live circuit. Refer to
wiring diagram supplied with unit.
1.
Remove the limit switch compartment cover (38) to
gain access to the position switch assembly.
2.
Remove the motor pipe plug (46) for access to slot
"A" located in the end of motor shaft.
3.
With a manual or power screw driver rotate the
motor shaft in a clockwise direction to extend or
counterclockwise direction to retract the extension
rod.
4.
To set the extend limit switch, turn the motor shaft in
a clockwise direction. Note the direction the slotted
shaft (48) is turning while extending extension rod to
its desired position.
5.
Depress the position switch plunger (47) and turn
the slotted shaft (48) in the same direction it was
turning as in step 4 and continue to turn in this
direction until the cam (50) flat comes in contact
with the limit switch (52) lever.
6.
Repeat steps 4 and 5 to set the retract limit switch
utilizing the slotted shaft (49), limit switch (53) and
cam (51). Turn the motor shaft in a counterclockwise
direction.
7.
Replace the motor pipe plug (46).
8.
Replace the limit switch compartment cover (38).
9.
Re-energize electrical power to the actuator.
NOTICE
If damaged, replace the complete geared position limit switch
assembly rather than attempting field repair.
5.0 Disassembly
WARNING
HAZARDOUS VOLTAGE
Disconnect all electrical power to the actuator prior to performing
any service or maintenance. Unit may have more than one live
circuit. Refer to wiring diagram supplied with unit.
CAUTION
BURN HAZARD
Possible hot surfaces. Keep hands clear of surface. Allow surface
to cool before performing any maintenance.
5.1 Limit Switch Assembly
1.
Remove the limit switch compartment cover (38).
2.
Disconnect the leads to the limit switches (52) and
(53) in the gear position limit switch assembly (36),
making sure they are marked for reconnection to
the proper terminals. The geared position limit
switch assembly (36) is retained by hardware (39 and
40). Remove the limit switch assembly by removing
the hardware and pulling the switch assembly out of
the housing (58).
5.2 Motor
1.
Disconnect the motor leads noting where they are
connected, make sure they are marked properly for
reconnection.
2.
Remove the motor (27) by removing the retaining
hardware (41 and 42) and pulling the motor out of
the actuator motor housing, carefully feed the motor
leads from the limit switch compartment into the
motor compartment.
3.
To remove the motor pinion, remove the retaining
ring (43), loosen the set screw (45), and the slide
pinion (44) off the shaft.
5.3 Rod End Clevis
1.
Loosen the jam nut (28) from face of extension rod (6).
2.
Remove the clevis (29) by unthreading it from the
extension rod (6).
5.4 Drive Screw
1.
Clamp the actuator housing (26) in a soft jawed vise.
With a strap wrench on the body tube (5), unthread
the body tube from the actuator housing. The
threads are Loctited, so it may be necessary to apply
heat in this area. Do not exceed 350°F maximum
surface temperature.
2.
Slide the body tube assembly off the extension rod.
3.
Remove gear compartment cover (21).
4.
Use non-ferrous block to hold main drive gear (19)
from rotating and remove flex nut (17) and gear.
WARNING
MOVING PARTS
Internal moving parts. Pinch
point hazard. Keep hands clear
during operation.
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