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ASTM F1309-98(2003)

(Practice)

Standard Practice for Installation Procedures for Fitting Chocks to Marine Machinery Foundations

Standard Practice for Installation Procedures for Fitting Chocks to Marine Machinery Foundations

SIGNIFICANCE AND USE
This practice provides the three principal methods of fitting chocks to marine machinery foundations to ensure that the machinery is free of vibration and perfectly aligned after installation.
3.1.1 The three principal methods of installing chocks described herein are as follows:
3.1.1.1 Type A—Epoxy-based resin, nonshrinking Chockfast Orange PR 610 TCF by Philadelphia Resin Corp., or equal, and
3.1.1.2 Type B—Two-piece wedge chocks.  
3.1.1.3 Type C—Solid, one-piece fitted chocks.
SCOPE
1.1 This practice covers the acceptable methods of fitting chocks to marine machinery foundations.
1.2 The values stated in SI units shall be regarded as standard. The values in parentheses are for information only.
1.3 This standard does not purport to address the safety concerns associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

General Information

Status
Historical
Publication Date
30-Nov-2003
ICS
47.020.20 - Marine engines and propulsion systems
Technical Committee
F25 - Ships and Marine Technology
Drafting Committee
F25.03 - Outfitting and Deck Machinery
Current Stage
Ref Project

Relations

Replaces
ASTM F1309-98 - Standard Practice for Installation Procedures for Fitting Chocks to Marine Machinery Foundations
Effective Date
01-Dec-2003
Replaced By
ASTM F1309-98(2007) - Standard Practice for Installation Procedures for Fitting Chocks to Marine Machinery Foundations
Effective Date
01-Dec-2007

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ASTM F1309-98(2003) - Standard Practice for Installation Procedures for Fitting Chocks to Marine Machinery FoundationsASTM F1309-98(2003) - Standard Practice for Installation Procedures for Fitting Chocks to Marine Machinery Foundations
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ASTM F1309-98(2003) - Standard Practice for Installation Procedures for Fitting Chocks to Marine Machinery Foundations
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Standards Content (Sample)


NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
An American National Standard
Designation:F 1309–98 (Reapproved 2003)
Standard Practice for
Installation Procedures for Fitting Chocks to Marine
Machinery Foundations
This standard is issued under the fixed designation F 1309; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope 3.1.1 The three principal methods of installing chocks
described herein are as follows:
1.1 This practice covers the acceptable methods of fitting
3.1.1.1 Type A—Epoxy-based resin, nonshrinking Chock-
chocks to marine machinery foundations.
fastOrangePR610TCFbyPhiladelphiaResinCorp.,orequal,
1.2 The values stated in SI units shall be regarded as
and
standard. The values in parentheses are for information only.
3.1.1.2 Type B—Two-piece wedge chocks.
1.3 This standard does not purport to address the safety
3.1.1.3 Type C—Solid, one-piece fitted chocks.
concerns associated with its use. It is the responsibility of the
user of this standard to establish appropriate safety and health
4. Procedure
practices and determine the applicability of regulatory limita-
4.1 General Requirements for Types A, B, and C Chocking
tions prior to use.
Systems:
2. Referenced Documents 4.1.1 Machining:
4.1.1.1 Type A chocks, machinery bedplates, foundation
2.1 ASTM Standards:
plates, and bolts do not require finish machining if the chocks
A 370 Test Methods and Definitions for MechanicalTesting
are not designed to be removed. Unless specified otherwise,
of Steel Products
Types B and C chock, bolts/studs, machinery bedplate, foun-
D 638 Test Method for Tensile Properties of Plastics
dation plates, and fitted holes need to be finished machined and
D 648 Test Method for Deflection Temperature of Plastics
fitted.
Under Flexural Load in the Edge-Wise Position
4.1.1.2 Surfaces in way of the chock areas on the machinery
D 695 Test Method for Compressive Properties of Rigid
bedplate and the foundation plate may be machined before
Plastics
installation or while the ship is not waterborne, or both.
2.2 Other Documents:
4.1.1.3 Unless otherwise specified, all finished surfaces
American Bureau of Shipping Rules for Building and
shall be finished to a maximum of 0.003–mm roughness height
Classing Steel Vessels
average (RHA).
American Welding Society Publication, AWS
4.1.1.4 Finished areas on the machinery bedplate and the
D1.1 Structural Welding Code
foundation plate in way of the chocks shall be sufficiently
3. Significance and Use
greater in size than the chock to prevent interference from the
unfinished area with the chock during installation.
3.1 This practice provides the three principal methods of
4.1.1.5 Spotface hole edge radius shall be such that there
fitting chocks to marine machinery foundations to ensure that
will not be any interference between it and the bolt head-to-
the machinery is free of vibration and perfectly aligned after
shank radius. The spotface area shall be sufficiently greater in
installation.
area than that of the bolt head or nut so as not to cause any
interference when tightening or with the tooling used. The
This practice is under the jurisdiction of ASTM Committee F25 on Ships and
spotface surfaces shall be perpendicular to the finished fitted
Marine Technology and is the direct responsibility of Subcommittee F25.03 on
hole centerline.
Outfitting and Deck Machinery.
4.1.2 Installation:
Current edition approved Dec. 1, 2003. Published January 2004. Originally
approved in 1990. Last previous edition approved in 1998 as F 1309 - 98.
4.1.2.1 The ship must be waterborne and fairly well com-
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
pleted before final alignment is accomplished. Ship shall be
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
trimmed as close to the even keel position as practicable. The
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. same trim position shall be maintained throughout the align-
Available from American Bureau of Shipping (ABS), ABS Plaza, 16855
ment procedure. No heavyweight shall be moved, loaded, or
Northchase Dr., Houston, TX 77060.
unloaded during alignment; ramps for Ro-Ros shall not be
Available from The American Welding Society (AWS), 550 NW LeJeune Rd.,
lowered or hoisted.
Miami, FL 33126.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
F 1309–98 (2003)
4.1.2.2 Final machining of the fitted or bearing areas of the 4.2.2.2 Follow resin manufacturer’s instructions including
machinery bedplate to chock to foundation plate and the the relative design parameters on loading, temperature, allow-
mating areas of the fitted portion of the bolt/stud shank and to able thickness, additional design, installation, bolt tension, and
the hole wall shall be a minimum of 85 % uniformly distrib- inspection.
uted around the mating area.Alight coat of Prussian blue shall 4.2.3 Foundation Bolts—Install hold-down bolts before
be used to check the contact areas. pouring of resin. Tension (torque) bolts only after resin
manufacturer’s recommended cure time.
4.1.2.3 Machineryshallbealignedusingasufficientnumber
4.3 Type B, Two-Piece Wedge Chock—The two-piece
of jackscrews, shims, and wedges to accommodate adequate
wedges are drop-forged, medium steel or machined from steel
up-down, port-starboard, and fore-aft movement without dis-
plate of equal strength or of other materials as specified.
torting the machinery bedplate or foundation plate and, once
4.3.1 Applicable Techniques—Fig. 2 indicates the configu-
aligned, be able to hold that alignment firmly during the final
chock installation and bolt-fitting phase. ration of Type C chocks to the machinery bedplate and the
foundation plate.
4.1.2.4 A sufficient number of fitted bolts and chocks shall
4.3.1.1 The taper on the sloped faces of each half of the
be installed to maintain the alignment and prevent any relative
chock must not exceed a rise of one over a run of four.
movement between the machinery and the foundation as a
4.3.1.2 Align machinery in place as described in 4.1 and
result of vibration and sea state inputs. Number and position of
install the lower half of the tapered chock in place with the
fitted bolts shall comply with the engine manufacturer’s
thicker end in first from the place installation. Ensure it does
requirements, if any.
not move by tach welding. Do not allow distortions or
4.1.2.5 Bolts shall be install
...

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