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Heavy Duty Hydraulic Overrides

Hydraulic manual overrides on Automax heavy-duty

actuators provide a compact, rugged method for

manually operating the actuator. The hydraulic

override consists of either a hydraulic piston or ram, a

hand pump, and a control valve. Double acting

actuators require a piston, and spring return actuators

utilize a ram. The piston or ram is an integral part of

the actuator, designed to override the full rated torque

of the actuator.

Installation

Automax standard hydraulic overrides are supplied

as a complete integral component of the heavy duty

actuator. Override units are shipped with required

accessories, tubing, and fluid installed on actuator,

ready to be used. No additional customer installation

is required. Oil level in hydraulic override should be

checked prior to installing actuator into service. See

maintenance instructions for checking oil level. See

Automax Nuclear Qaulified Heavy Duty Actuator

bulletin B00143 for instructions on installing Heavy

Duty actuator into service.

Note: Actuator orientation must be specified when

ordering, to allow for proper orientation of pump and

reservoir. Standard orientation is horizontal, as

shown below, under 'Manual Override Dimensional

Data'.

Special hydraulic override units may be supplied with

remote mounted pump and controls. Installation of

such units is as follows:

1. Run required hydraulic supply tubing from remote

pump and controls to appropriate ports on hy-

draulic override, per schematic supplied with unit.

2. Fill pump reservoir with a fire-resistant, nuclear

approved hydraulic fluid, such as Exxon Firexx

HS68. Consult factory for seal compatibility.

3. Use hand pump to circulate fluid into hydraulic

lines. Bleed air from lines by loosening cylinder

bleed plug or fitting on the hydraulic override.

Pump reservoir may have to be filled a few of

times to completely fill the hydraulic lines.

4. See maintenance instructions to check oil level.

B00151-0 Page 1 of 4

11444 Deerfield Road

Cincinnati, Ohio 45242

(513) 489-7800

FAX (513) 489-5243

Heavy Duty Hydraulic Override

Nuclear Qualified Actuator

Installation, Operating, and Maintenance Instructions

Double Acting Hydraulic

Manual Override

Spring Return Hydraulic

Manual Override

Model A(DA) A(SR) B(DA) B(SR) C(DA) C(SR) D

RN2 18.31 28.95 5.50 4.00 30.53 32.18 36.75

RN3 22.44 33.75 7.13 5.13 31.35 36.24 39.31

RN4 29.13 45.93 9.82 6.75 32.69 39.70 44.34

SR and DA Hydraulic Manual

Override Overall and Pump

Handle Dimensions

Note: Other actuator dimensions may

be found in Heavy Duty Catalog

MANUAL OVERRIDE

DIMENSIONAL DATA

1 2 3 4

Heavy Duty Hydraulic Override 1

Résumé du contenu

Page 1 - Heavy Duty Hydraulic Override

Heavy Duty Hydraulic OverridesHydraulic manual overrides on Automax heavy-dutyactuators provide a compact, rugged method formanually operating the act

Page 2

OperationOperation of hydraulic overrides requires shifting amanual valve and operating a hand pump. Standardoperation for DA or SR actuators is desc

Page 3

Checking Oil Level1. Actuator should be in full CW position for DA ac-tuator or failed position for SR actuator.2. Remove cap from oil reservoir and c

Page 4

Parts and MaterialsItem Description Material Qty1 Cylinder Steel/Chrome Pl. 12 Piston(DA)/Ram(SR) Steel1†3 Piston Bolt Steel1†4 Piston Bolt Lockwasher

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Flowserve Heavy Duty Hydraulic Overrides Manuel d'utilisateur

Naviguer en ligne ou télécharger Manuel d'utilisateur pour Matériel Flowserve Heavy Duty Hydraulic Overrides. Flowserve Heavy Duty Hydraulic Overrides User Manual Manuel d'utilisatio

Résumé du contenu

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