ASTM F1309-98(2012)

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

SIGNIFICANCE AND USE
3.1 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-Sep-2012
• ICS: 47.020.20 - Marine engines and propulsion systems
• Technical Committee: F25 - Ships and Marine Technology
• Drafting Committee: F25.03 - Outfitting and Deck Machinery

Relations

• Replaces: ASTM F1309-98(2007) - Standard Practice for Installation Procedures for Fitting Chocks to Marine Machinery Foundations
• Effective Date: 01-Oct-2012

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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
Designation: F1309 − 98 (Reapproved 2012) An American National Standard
Standard Practice for
Installation Procedures for Fitting Chocks to Marine
Machinery Foundations
This standard is issued under the fixed designation F1309; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope American Welding Society Publication, AWS D1.1 Struc-
tural Welding Code
1.1 This practice covers the acceptable methods of fitting
chocks to marine machinery foundations.
3. Significance and Use
1.2 The values stated in SI units shall be regarded as
3.1 This practice provides the three principal methods of
standard. The values in parentheses are for information only.
fitting chocks to marine machinery foundations to ensure that
1.3 This standard does not purport to address all of the
the machinery is free of vibration and perfectly aligned after
safety concerns, if any, associated with its use. It is the
installation.
responsibility of the user of this standard to establish appro-
3.1.1 The three principal methods of installing chocks
priate safety, health, and environmental practices and deter-
described herein are as follows:
mine the applicability of regulatory limitations prior to use.
3.1.1.1 Type A—Epoxy-based resin, nonshrinking Chock-
1.4 This international standard was developed in accor-
fastOrangePR610TCFbyPhiladelphiaResinCorp.,orequal,
dance with internationally recognized principles on standard-
and
ization established in the Decision on Principles for the
3.1.1.2 Type B—Two-piece wedge chocks.
Development of International Standards, Guides and Recom-
3.1.1.3 Type C—Solid, one-piece fitted chocks.
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
4. Procedure
4.1 General Requirements for Types A, B, and C Chocking
2. Referenced Documents
Systems:
2.1 ASTM Standards:
4.1.1 Machining:
A370 Test Methods and Definitions for Mechanical Testing
4.1.1.1 Type A chocks, machinery bedplates, foundation
of Steel Products
plates, and bolts do not require finish machining if the chocks
D638 Test Method for Tensile Properties of Plastics
are not designed to be removed. Unless specified otherwise,
D648 Test Method for Deflection Temperature of Plastics
Types B and C chock, bolts/studs, machinery bedplate, foun-
Under Flexural Load in the Edgewise Position
dation plates, and fitted holes need to be finished machined and
D695 Test Method for Compressive Properties of Rigid
fitted.
Plastics
4.1.1.2 Surfaces in way of the chock areas on the machinery
2.2 Other Documents:
bedplate and the foundation plate may be machined before
American Bureau of Shipping Rules for Building and
installation or while the ship is not waterborne, or both.
Classing Steel Vessels
4.1.1.3 Unless otherwise specified, all finished surfaces
shall be finished to a maximum of 0.003–mm roughness height
average (RHA).
4.1.1.4 Finished areas on the machinery bedplate and the
This practice is under the jurisdiction of ASTM Committee F25 on Ships and foundation plate in way of the chocks shall be sufficiently
Marine Technology and is the direct responsibility of Subcommittee F25.03 on
greater in size than the chock to prevent interference from the
Outfitting and Deck Machinery.
unfinished area with the chock during installation.
Current edition approved Oct. 1, 2012. Published October 2012. Originally
4.1.1.5 Spotface hole edge radius shall be such that there
approved in 1990. Last previous edition approved in 2007 as F1309 – 98 (2007).
DOI: 10.1520/F1309-98R12.
will not be any interference between it and the bolt head-to-
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
shank radius. The spotface area shall be sufficiently greater in
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
3 4
Available from American Bureau of Shipping (ABS), ABS Plaza, 16855 Available from American Welding Society (AWS), 8669 NW 36 St., #130,
Northchase Dr., Houston, TX 77060, http://www.eagle.org. Miami, FL 33166-6672, http://www.aws.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
F1309 − 98 (2012)
area than that of the bolt head or nut so as not to cause any 4.2.1 Provision for Future Machinery Removal—To prevent
interference when tightening or with the tooling used. The adhesion of chocks to adjoining surfaces and facilitate future
spotface surfaces shall be perpendicular to the finished fitted removal of machinery, spray an aerosol release agent on all
hole centerline. contact surfaces. This precaution allows these chocks to be
removed in a similar manner to steel chocks.
4.1.2 Installation:
4.1.2.1 The ship must be waterborne and fairly well com-
4.2.2 Applicable Techniques:
pleted before final alignment is accomplished. Ship shall be
4.2.2.1 Position dams to retain the compound during pour-
trimmed as close to the even keel position as practicable. The
ing and curing without distortion. Damming materials may be
same trim position shall be maintained throughout the align-
expanded plastic, foam rubber stripping and sheet metal, or
ment procedure. No heavyweight shall be moved, loaded, or
light gage flat bar. (See Fig. 1.)
unloaded during alignment; ramps for Ro-Ros shall not be
4.2.2.2 Follow resin manufacturer’s instructions including
lowered or hoisted.
the relative design parameters on loading, temperature, allow-
4.1.2.2 Final machining of the fitted or bearing areas of the
able thickness, additional design, installation, bolt tension, and
machinery bedplate to chock to foundation plate and the
inspection.
mating areas of the fitted portion of the bolt/stud shank and to
4.2.3 Foundation Bolts—Install hold-down bolts before
the hole wall shall be a minimum of 85 % uniformly distrib-
pouring of resin. Tension (torque) bolts only after resin
uted around the mating area.Alight coat of Prussian blue shall
manufacturer’s recommended cure time.
be used to check the contact areas.
4.3 Type B, Two-Piece Wedge Chock—The two-piece
4.1.2.3 Machineryshallbealignedusingasufficientnumber
wedges are drop-forged, medium steel or machined from steel
of jackscrews, shims, and wedges to accommodate adequate
plate of equal strength or of other materials as specified.
up-down, port-starboard, and fore-aft movement without dis-
4.3.1 Applicable Techniques—Fig. 2 indicates the configu-
torting the machinery bedplate or foundation plate and, once
ration of Type C chocks to the machinery bedplate and the
aligned, be able to hold that alignment firmly during the final
foundation plate.
chock installation and bolt-fitting phase.
4.1.2.4 A sufficient number of fitted bolts and chocks shall 4.3.1.1
...