RR-F-191/2E
3.6 Rollers. Rollers shall be equipped with bearings. Non-sealed type bearings shall be provided with a grease fitting for periodic maintenance. Rollers shall be secured to the gate post or gate frame without welding. Unless otherwise specified (see 6.1), rollers shall be enclosed.
4. QUALITY ASSURANCE PROVISIONS
4.1 Responsibility for inspection. (see RR-F-191/GEN)
4.2 Sampling. (see Section 6 of RR-F-191/GEN).
4.3 Examination. Examine gates for defects listed in Table I.
TABLE I. Classification of defects gates.
Defects |
Major |
Minor |
Type of gate not as specified. |
x |
|
Materials not as specified. |
x |
|
Color not as specified. |
x |
|
Truss rods missing or less than 5/16 - inch diameter. |
x |
|
Dimensions not within tolerance. |
x |
|
Welds not painted or protected against corrosion. |
x |
|
Gated construction not as specified. |
x |
|
Damage or defects affecting function or serviceability. |
x |
|
Damage or defects not affecting function or serviceability. |
x |
5. PREPARATION FOR DELIVERY (see RR-F-191/GEN)
6. NOTES
(This section contains information of a general or explanatory nature that may be helpful, but is not mandatory.)
6.1 Ordering data. Purchasers should select the preferred options permitted herein and include the following information in acquisition documents:
a. Title, number, and date of this specification. b. Type of gate required (see 1.2).
c. Design and construction of gate required (see 3.1).
d. When color coating is required and color (see 3.1.1).
e. When color coating material is other than specified (see 3.1.1).
f. Class, grade, and size of wire, color, and selvage for fabric required (see 3.3). g. When barbed wire top on gate is required (see 3.4).
h. Coating required on latches, hinges, stops and keepers, and weights of coatings if other than that specified (see 3.5).
i. Type latch required (see 3.5.1 and 3.5.2).
j. When rollers are other than specified (see 3.6).
6.2 If gates are to be electrically operated, caution should be taken by following the safety design standard per ASTM F2200.
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