South Carolina Code of Regulations › Chapter 38 - DEPARTMENT OF PUBLIC SAFETY › Article 5 - STATE TRANSPORT POLICE REGULATIONS › Subarticle 1 - UNMANUFACTURED FOREST PRODUCTS TRUCKING REGULATIONS › Appendix A - NORTH AMERICAN STANDARD OUT-OF-SERVICE CRITERIA JANUARY 1, 2004 COMMERCIAL VEHICLE SAFETY ALLIANCE › Part II - SOUTH CAROLINA VEHICLE OUT-OF-SERVICE CRITERIA FOR UNMANUFACTURED FOREST PRODUCTS POLICY STATEMENT

Current through Register Vol. 48, No. 6, June 28, 2024
The purpose of 38-382 is to identify critical vehicle
					 inspection items and provide criteria for placing vehicle(s) out-of-service
					 subsequent to a safety inspection.
Except where state, provincial, or federal laws preclude
					 enforcement of a named item, motor carrier safety enforcement personnel and
					 their jurisdictions shall comply with these vehicle Out-of-Service violation
					 standards.
NOTE: Decal Qualification: Each vehicle (truck, truck
					 tractor, semitrailer, trailer, etc.) must "pass" inspection to qualify for a
					 decal. "Pass Inspection" means that no violations/defects are found of the
					 vehicle inspection items contained in the definitions of Level I and Level V
					 inspections. For the purpose of decal issuance, if no violation is detected
					 during a Level I or Level V inspection due to a hidden part, which includes the
					 vehicle inspection items listed in the definitions, a decal shall be
					 applied.
The decal criteria apply only to the condition of the
					 vehicle, not the driver. It is possible for a driver to be Out-of-Service and
					 still have vehicle(s) qualify for a decal. If each vehicle, whether used singly
					 or in a combination, passes inspection, a current CVSA decal shall be affixed
					 and no other CVSA decals shall be visible.
OUT-OF-SERVICE: Authorized personnel shall declare and mark
					 "out of service" any motor vehicle which by reason of its mechanical condition
					 or loading would likely cause an accident or breakdown. An "Out of Service
					 Vehicle" sticker shall be used to mark vehicles "out of service". No motor
					 carrier shall require nor shall any person operate any commercial motor vehicle
					 declared and marked "out of service" until all repairs by the "out of service
					 notice" have been satisfactorily completed.
No person shall remove the "Out of Service Vehicle" sticker
					 from any motor vehicle prior to completion of all repairs required by the "out
					 of service notice".
Violations other than out of service conditions detected
					 during the inspection process will not preclude the completion of the current
					 trip or dispatch. However, such violations must be corrected or repaired prior
					 to re-dispatch.
These criteria are neither suited nor intended to serve as
					 vehicle maintenance or performance standards.
1. Brake System.
a. Defective Brakes.
The number of defective brakes is equal to or greater than
					 20 percent of brakes on the vehicle or combination. A defective brake includes
					 any brake that meets one of the following criteria: (NOTE: Steering axle brakes
					 under 1.b are to be included in 20 percent criterion.)
(1) Absence of effective braking action upon
				  application of the service brakes (such as brake linings failing to move or
				  contact braking surface upon application). (38-393.48(a))
(2) Missing or broken mechanical components
				  including: shoes, linings, pads, springs, anchor pins, spiders, cam rollers,
				  push-rods, and air chamber mounting bolts. (38-393.48(a))
(3) Loose brake components including air
				  chambers, spiders, and cam shaft support brackets. (38-393.48(a))
(4) Audible air leak at brake chamber,
				  (Example - ruptured diaphragm, loose chamber clamp, etc.) NOTE: Also check
				  under 1.h. -Air Loss Rate. (38-396.3(a)(1))
(5) Brake adjustment limits. Bring reservoir
				  pressure between 90 to 100 psi, turn engine off and then fully apply the
				  brakes.
(a) One brake at 1/4 inch or more
				  beyond the readjustment limit. (Example: Type 30 clamp type brake chamber
				  pushrod measured at 2-1/4 inches would be one defective brake.)
				  (38-396.3(a)(1))
(b) Two brakes
				  less than 1/4 inch beyond the readjustment limit also equal one defective
				  brake. (Examples: Clamp type 30 pushrods measure - Two at 2-1/8 inches. This
				  example would equal one defective brake. (38-396.3(a)(1))
(c) Any wedge brake where the combined brake
				  lining movement of both top and bottom shoes exceeds 1/8 inch. (38-396.3(a)(1))
Brake Adjustment. Shall not meet or exceed those
					 specifications contained hereunder relating to "Maximum stroke at which Brakes
					 Must Be Readjusted." (Dimensions are in inches.)
COMMERCIAL VEHICLE SAFETY ALLIANCE
OUT-OF-SERVICE CRITERIA
REFERENCE CHARTS
TYPE
OUTSIDE DIAMETER
BRAKE ADJUSTMENT LIMIT
6
4-1/2
1-1/4
9
5-1/4
1-3/8
12
5-11/16
1-3/8
16
6-3/8
1-3/4
20
6-5/32
1-3/4
24
7-7/32
1-3/4
30
8-3/32
2
36
9
2-1/4
'LONG STROKE' CLAMP TYPE BRAKE CHAMBER DATA
TYPE
OUTSIDE DIAMETER
BRAKE ADJUSTMENT LIMIT
12
5-11/16
1-3/4
16
6-3/8
2.0
20
6-25/32
2.0
24
7-7/32
2.0
24*
7-7/32
2.5
30
8-3/32
2.5
* For 3" maximum stroke type 24 chambers
BOLT TYPE BRAKE CHAMBER DATA
TYPE
OUTSIDE DIAMETER
BRAKE ADJUSTMENT LIMIT
A
6-15/16
1-3/8
B
9-3/16
1-3/4
C
8-1/16
1-3/4
D
5-1/4
1-1/4
E
6-3/16
1-3/8
F
11
2-1/4
G
9-7/8
2
ROTOCHAMBER DATA
TYPE
OUTSIDE DIAMETER
BRAKE ADJUSTMENT LIMIT
9
4-9/32
1-1/2
12
4-13/16
1-1/2
16
5-13/32
2
20
5-15/16
2
24
6-13/32
2
30
7-1/16
2-1/4
36
7-5/8
2-3/4
50
8-7/8
3
DD-3 BRAKE CHAMBER DATA
TYPE
OUTSIDE DIAMETER
BRAKE ADJUSTMENT LIMIT
30
8-1/8
2-1/4
NOTE: This chamber has three air lines and is found on
					 motor coaches.
WEDGE BRAKE DATA
The combined movement of both brake shoe lining scribe
					 marks shall not exceed 1/8 inch (3.18mm) a. Defective Brakes (cont'd) (6) Brake
					 linings or pads. (Except on power unit steering axles)
(a) Cracked, loose, or missing lining.
i. Lining cracks or voids of 1/16"' in width
				  observable on the edge of the lining.
ii. Portions of a lining segment missing such
				  that a fastening device (rivet or bolt) is exposed when viewing the lining from
				  the edge.
iii. Cracks that exceed
				  1-1/2"' in length.
iv. Loose lining
				  segments. (Approximately 1/16"' or more movement.)
v. Complete lining segment missing.
				  (38-393.47)
(b) Evidence
				  of oil seepage into or out of the brake lining/drum interface area. This must
				  include wet contamination of the lining edge accompanied by evidence that
				  further contamination will occur - such as oil running from the drum or a
				  bearing seal.
NOTE: Grease on the lining edge, back of shoe, or drum edge
					 and oil stains with no evidence of fresh oil leakage are not conditions for
					 out-of-service. (38-393.47)
(c) Lining with a thickness less than 3/16
				  inch for a shoe with a continuous strip of lining or 1/4 inch for a shoe with
				  two pads for drum brakes or to wear indicator if lining is so marked, or less
				  than 1/8 inch for air disc brakes, and 1/16 inch or less for hydraulic, disc,
				  drum and electric brakes. (38-393.47)(7) Missing brake on any axle required to
				  have brakes. (38-393.42)