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RADIUS LLC
4922 Technical Drive
Milford, Mi 48381
SERIES A
OPERATION AND
INSTRUCTION MANUAL
RECOMMENDED SPARE PARTS
All seals, slip shoes, bearings and all non-reusable parts are included in the replacement parts kit.
Each replacement parts kit includes:
Item Description Quantity
4 Slip shoe 2
9 Slip bearing 2
8 Cover O-Ring 2
10 Piston O-Ring 2
11 Shaft lower O-Ring 1
12 Shaft upper O-Ring 1
14 Double seal O-Ring 1
17 Air O-Ring 4
20 Stop O-Ring 2
6 Outside sealing washer 1
7 Retention ring 1
All the replacement parts kits are identical for the double and single action versions and for all aluminum
actuators. RADIUS also recommends a spring replacement kit for each model. These spring must be
replaced in complete sets. In each kit of springs, both springs and pre-tensors are supplied.
Model Quantity
AS-003 6
AS-005 12
AS-008/AS-012/AS-020 16
AS-030/AS-040 20
AS-060/AS-100 20
AS-200/AS-370 20
AS-140 24
AS-250
AS-500
40
42
STORAGE
When an actuator is not put in service immediately (or is used intermittently), it is recommended that the
actuator is operated at least three times a month using compressed air or nitrogen. When it is not possible
to operate them with air or nitrogen, and they can be operated manually (see PRINCIPLES OF MANUAL
OPERATION). It is recommended that they are stored indoors when space is available. Care must be
taken to plug up the openings to prevent the entry of foreign material and humidity. The actuators must not
be stored in places where the atmosphere is detrimental to the elastic seals.
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