sb2061

Replacement Shunt Tube, EPA07 Caterpillar C13 and C15
Engines
FLA COE
FLB COE
FLD Conventional
Business Class
FLC 112 Conventional
Century Class Conventional
Argosy COE
Cargo
20-61
Freightliner
Service Bulletin
> Columbia
Coronado
Business Class M2
Cascadia
Description of Revisions: This bulletin replaces the version dated
May 2009. The Group reference for bumper removal has been
corrected, and the warranty tables have been updated.
General Information
The shunt tube on some Columbia vehicles with EPA07 equipped Caterpillar C13 or C15 engines may be
pinched between the radiator brace and the front crossmember. A redesigned shunt tube, and associated support brackets, are now available. If the shunt tube is found to be damaged, replace it with the new shunt tube
and support brackets.
Procedure
1. Set the parking brake, shut off the engine, and chock the tires.
2. Remove the bumper. See Group 31 of the Columbia Workshop Manual for instructions.
3. Drain the coolant. See Group 20 of the Columbia Workshop Manual for instructions.
4. Disconnect the shunt tube from the hoses at both ends, then remove the tube, the two mounting brackets
on the radiator brace, and all the associated cushion clamps. See Fig. 1.
4
3
2
2
1
2
3
04/22/2009
1. Shunt Tube
2. Bracket
3
f200720
3. Cushion Clamp
4. Hose
Fig. 1, Shunt Tube Installation
5. Install the new shunt tube mounting bracket (A05-27730-000) on the passenger side of the radiator brace.
See Fig. 2.
6. Install the new shunt tube mounting bracket (A05-27643-000) on the driver’s side of the radiator brace. See
Fig. 3.
Freightliner Service Bulletin, April 2010
Page 1
Replacement Shunt Tube, EPA07 Caterpillar C13 and C15
Engines
20-61
Freightliner
Service Bulletin
FLA COE
FLB COE
FLD Conventional
Business Class
FLC 112 Conventional
Century Class Conventional
Argosy COE
Cargo
> Columbia
Coronado
Business Class M2
Cascadia
3
4
1
3
2
04/22/2009
1. Shunt Tube
2. Cushion Clamp
2
f200722
3. Bracket
1
04/22/2009
1. Shunt Tube
2. Bracket
Fig. 2, Passenger Side Bracket Installation
f200723
3. Cushion Clamp
4. Hose
Fig. 3, Passenger Side Bracket Installation
7. Loosen the shunt tube mounting bracket directly under the surge tank and rotate it to align with the new
shunt tube.
8. Install the new metal shunt tube using the supplied cushion clamps. See Fig. 1.
9. Tighten the mounting bracket directly under the surge tank.
10. Close the radiator drain valve, and fill the cooling system as needed. See Group 20 of the Columbia Workshop Manual for instructions.
11. Start the engine and check for leaks.
12. Install the bumper. See Group 31 of the Columbia Workshop Manual for instructions.
Parts
Replacement parts are available from the PDCs. Table 1 lists the required parts for replacing a damaged shunt
tube.
Shunt Tube Replacement Parts
Part
Part Number
Shunt Tube, Revised CAT
05-27642-000
Left-Hand Tube Support Bracket
A05-27643-000
Right-Hand Tube Support Bracket
A05-27730-000
Table 1, Shunt Tube Replacement Parts
Page 2
Freightliner Service Bulletin, April 2010
Replacement Shunt Tube, EPA07 Caterpillar C13 and C15
Engines
FLA COE
FLB COE
FLD Conventional
Business Class
FLC 112 Conventional
Century Class Conventional
Argosy COE
Cargo
> Columbia
Coronado
Business Class M2
Cascadia
20-61
Freightliner
Service Bulletin
Warranty
Normal warranty applies. See Table 2 and Table 3 for damage code and labor allowance information, and refer
to this bulletin by number in the story of the claim. Warranty will only be paid if the factory-installed parts described in this bulletin have failed. Preventive repairs will not be paid.
Damage Code
270-001251609
SRT Code
27F-5010A
QuickClaim Damage Code and Labor Allowance
Description
CAT Shunt Tube, R/R
Time: Hours
1.0
Table 2, QuickClaim Damage Code and Labor Allowance
Component Code
042-002-083
Cause Code
03
OWL VMRS Codes and Labor Allowance
SRT Code
Description
27F-5010A CAT Shunt Tube, R/R
Time: Hours
1.0
Table 3, OWL VMRS Codes and Labor Allowance
Freightliner Service Bulletin, April 2010
Page 3