Post on 19-Apr-2020
January 2005
Form No. 433-0787
Proper alignment, Gates Green Stripe PowerBand belt maySolve Cummins N14 engine drive system problems
The fan drive belts on the Cummins N14
engine are known to occasionally turn over,
fail to run true in the pulley groove, or flip out
of the groove altogether. This is an indication that the fan hub and the pulley grooves are
misaligned. (See photo below.)
The problem has been widely reported in
Cummins and
Freightliner
servicebulletins, and
even in a
“Tech Update”
article printed in Truck Parts & Servicemagazine.
(See attachments.)
Despite improvements by Cummins to
alleviate the problem, fan drive belts may still
fail prematurely.
For belt drive systems with persistent failures,
Gates Corporation
engineers recommend that
technicians first realign the
pulleys with a straight edge.
To check parallel alignment, line a straight edge (metal
bar or ruler) along the
outside face of both pulleys.
Parallel misalignment will
show up as a gap between
an outside pulley face and the straight edge. (See
illustration, left.)
Tilting “angular” alignment
can be measured with a
spirit level.
If the two individual drive
belts continue to come off the drive or turn
over, Gates recommends replacing them with
a Gates Green Stripe® PowerBand
® belt.
The belt is made by joining two or more Gates premium V-belts with a permanent,
high strength tie band. It bends over pulleys
as easily as multiple V-belts, but the tie band
increases stability to keep the belt from
turning over or coming off the drive.
Gates PowerBand belt will also solve problems on high load, high horsepower
drives that abruptly start and stop, adding
stress and heavy vibrations to the drive.
Also, the joined belt cuts installation costs,
reduces inventory by eliminating the need for
matched V-belts, and has twice the service life of single sets of belts.
Gates Green Stripe PowerBand is made with
a thinner profile and variable notching pattern
for cooler, quieter operation, and less
cracking.
In testing by Gates engineers, Green Stripe PowerBand belts provided nearly twice the service life of conventional V-belt sets.Not all pulleys are designed for Green Stripe
PowerBand belts.
(MORE)
Fleet and Heavy Duty
Gates Fleet & Heavy Duty TECHTIPS
Cummins N14 Engine
Page 2
To check for compatibility and pulley groove
spacing, maintenance technicians should ask
their Gates heavy-duty parts distributor for a
free set of Green Stripe PowerBand pulley
templates (Part Number 431-2036).
Instructions are included with each set ofplastic templates.
When ordering Gates replacement belts, refer
to TABLE 1 on this page.
Also, refer to the attached listing of more than
200 engine applications showing makes and
models, and the OEM part numbers with the corresponding part numbers for Gates Green
Stripe PowerBand replacement belts.
TABLE 1Equipment Make OEM Part No. Gates Part No. Freightliner 0127191000 2/TR28466PB Freightliner 2310001029 2/TR28501PB Freightliner 2310001030 2/TR28492PB Freightliner 2310001031 2/TR28473PB Freightliner 2310001044 2/TR28480PB Freightliner 2310001056 2/TR28437PB International/Navistar 479329C1 2/TR28510PB International/Navistar 488674C1 2/TR28492PB International/Navistar 543042C1 2/TR28480PB International/Navistar 1686803C1 2/TR28473PB International/Navistar 488674C91 2/TR28492PB Kenworth 28430 2/TR28429PB Kenworth 134809 2/TR28492PB Kenworth 178597 2/TR28501PB Mack 134809 2/TR28492PB Mack 178624 2/TR28473PB Peterbilt 134809 2/TR28492PB White GMC 8003118 2/TR28483PB
Gates Corporation,
PO Box 5887
Denver, Colorado www.gates.com/fleet
Cummins N14 Belts
Freightliner advised that the fan drive belts on Cummins N14 engines in FLA, FLB, FLD and
Century trucks sometimes can roll over, fail to run true in the groove or come off the pulleys
completely.
This may indicate the fan hub bracket mounting location has caused a misalignment between the
upper fan hub pulley and the drive pulley.
This problem has persisted in a few cases, despite improvements implemented by Cummins. The
following procedures can be used to realign the pulleys and replace the belts, if
needed.
��Position the vehicle on a level surface, shut down the engine, set the
parking brake and chock the front and rear tires so the vehicle cannot
move.
��Tilt the cab or open the hood.
��Inspect the alignment of the fan hub pulley with the drive pulley. Correct
alignment must be checked visually. (See figure to the right.) In some
installations, a straight edge can be used to check pulley alignment. The
maximum permissible misalignment is 0.0625” per foot.
If the pulleys are not aligned properly, continue with the following steps.
��Loosen the fan hub-mounting bracket cap screws enough to allow the
bracket to be moved either forward or backward.
��Move the fan hub-mounting bracket to align it with the drive pulley within the specified
distance.
��Tighten the lower cap screws to 75 lb. ft. (102 N m) and the upper cap screws to 50 lb. (68
N m).
��Tension the belts to 100 lb.
��Visually confirm that the pulleys still are aligned.
��Rotate the engine and check belt alignment again.
If the belts continue to come off the fan drive pulleys or fail to run true to the groove after
checking and adjusting the alignment, change the two belts to a Gates PowerBand�
belt. This
double V-Belt is available in several lengths to fit most Cummins N14 engines.
Truck Parts & Service “Tech Update” is reprinted with permission of Kona Communications, Deerfield, Il.Copyright 2003. All rights reserved.
Gates PowerBand Belts for Cummins N14 Applications
Equipment Make Equipment Model Equipment Year Application Description OEM Part Number
Gates PowerBand Part
Number
Freightliner Century Class 2001 Hub & Fan 2/TR28411PB
Freightliner Century Class 2000 Hub & Fan 2/TR28411PB
Freightliner Century Class 1999 Hub & Fan 2/TR28411PB
Freightliner Century Class 1998 Hub & Fan 2/TR28411PB
Freightliner Century Class 1997 Hub & Fan 2/TR28411PB
Freightliner Century Class 1996 Hub & Fan 2/TR28411PB
Freightliner Classic 2002 Fan 0127191000 2/TR28466PB
Freightliner FLA 1993 Fan 2310001054 2/TR28429PB
Freightliner FLA 1993 Fan 2310001056 2/TR28437PB
Freightliner FLA 1993 Fan 2310001031 2/TR28473PB
Freightliner FLA 1993 Fan 2310001044 2/TR28480PB
Freightliner FLA 1993 Fan 2310001030 2/TR28492PB
Freightliner FLA 1993 Alt. 2310001029 2/TR28501PB
Freightliner FLA 1992 Fan 2310001054 2/TR28429PB
Freightliner FLA 1992 Fan 2310001056 2/TR28437PB
Freightliner FLA 1992 Fan 2310001031 2/TR28473PB
Freightliner FLA 1992 Fan 2310001044 2/TR28480PB
Freightliner FLA 1992 Fan 2310001030 2/TR28492PB
Freightliner FLA 1992 Alt. 2310001029 2/TR28501PB
Freightliner FLB 1998 Fan 2/TR28411PB
Freightliner FLB 1997 Fan 2/TR28411PB
Freightliner FLB 1996 Fan 2310001054 2/TR28429PB
Freightliner FLB 1996 Fan 2310001056 2/TR28437PB
Freightliner FLB 1996 Fan 2310001031 2/TR28473PB
Freightliner FLB 1996 Fan 2310001044 2/TR28480PB
Freightliner FLB 1996 Fan 2310001030 2/TR28492PB
Freightliner FLB 1996 Alt. 2310001029 2/TR28501PB
Freightliner FLB 1995 Fan 2310001054 2/TR28429PB
Freightliner FLB 1995 Fan 2310001056 2/TR28437PB
Freightliner FLB 1995 Fan 2310001031 2/TR28473PB
Freightliner FLB 1995 Fan 2310001044 2/TR28480PB
Freightliner FLB 1995 Fan 2310001030 2/TR28492PB
Freightliner FLB 1995 Alt. 2310001029 2/TR28501PB
Freightliner FLB 1994 Fan 2310001054 2/TR28429PB
Freightliner FLB 1994 Fan 2310001056 2/TR28437PB
Freightliner FLB 1994 Fan 2310001031 2/TR28473PB
Freightliner FLB 1994 Fan 2310001044 2/TR28480PB
Freightliner FLB 1994 Fan 2310001030 2/TR28492PB
Freightliner FLB 1994 Alt. 2310001029 2/TR28501PB
Freightliner FLC 1997 Fan 2/TR28411PB
Freightliner FLC 1996 Fan 2310001054 2/TR28429PB
Freightliner FLC 1996 Fan 2310001056 2/TR28437PB
Freightliner FLC 1996 Fan 2310001031 2/TR28473PB
Freightliner FLC 1996 Fan 2310001044 2/TR28480PB
Freightliner FLC 1996 Fan 2310001030 2/TR28492PB
Freightliner FLC 1996 Alt. 2310001029 2/TR28501PB
Freightliner FLC 1995 Fan 2310001054 2/TR28429PB
Freightliner FLC 1995 Fan 2310001056 2/TR28437PB
Freightliner FLC 1995 Fan 2310001031 2/TR28473PB
Freightliner FLC 1995 Fan 2310001044 2/TR28480PB
Freightliner FLC 1995 Fan 2310001030 2/TR28492PB
Freightliner FLC 1995 Alt. 2310001029 2/TR28501PB
Freightliner FLC 1994 Fan 2310001054 2/TR28429PB
Freightliner FLC 1994 Fan 2310001056 2/TR28437PB
Freightliner FLC 1994 Fan 2310001031 2/TR28473PB
Freightliner FLC 1994 Fan 2310001044 2/TR28480PB
Freightliner FLC 1994 Fan 2310001030 2/TR28492PB
Freightliner FLC 1994 Alt. 2310001029 2/TR28501PB
Freightliner FLC 1993 Fan 2310001054 2/TR28429PB
Freightliner FLC 1993 Fan 2310001056 2/TR28437PB
Freightliner FLC 1993 Fan 2310001031 2/TR28473PB
Freightliner FLC 1993 Fan 2310001044 2/TR28480PB
Freightliner FLC 1993 Fan 2310001030 2/TR28492PB
Freightliner FLC 1993 Alt. 2310001029 2/TR28501PB
Freightliner FLC 1992 Fan 2310001054 2/TR28429PB
Page 1
Gates PowerBand Belts for Cummins N14 Applications
Equipment Make Equipment Model Equipment Year Application Description OEM Part Number
Gates PowerBand Part
Number
Freightliner FLC 1992 Fan 2310001056 2/TR28437PB
Freightliner FLC 1992 Fan 2310001031 2/TR28473PB
Freightliner FLC 1992 Fan 2310001044 2/TR28480PB
Freightliner FLC 1992 Fan 2310001030 2/TR28492PB
Freightliner FLC 1992 Alt. 2310001029 2/TR28501PB
Freightliner FLD 2002 Fan 0127191000 2/TR28466PB
Freightliner FLD 1996 Fan 2310001054 2/TR28429PB
Freightliner FLD 1996 Fan 2310001056 2/TR28437PB
Freightliner FLD 1996 Fan 2310001031 2/TR28473PB
Freightliner FLD 1996 Fan 2310001044 2/TR28480PB
Freightliner FLD 1996 Fan 2310001030 2/TR28492PB
Freightliner FLD 1996 Alt. 2310001029 2/TR28501PB
Freightliner FLD 1995 Fan 2310001054 2/TR28429PB
Freightliner FLD 1995 Fan 2310001056 2/TR28437PB
Freightliner FLD 1995 Fan 2310001031 2/TR28473PB
Freightliner FLD 1995 Fan 2310001044 2/TR28480PB
Freightliner FLD 1995 Fan 2310001030 2/TR28492PB
Freightliner FLD 1995 Alt. 2310001029 2/TR28501PB
Freightliner FLD 1994 Fan 2310001054 2/TR28429PB
Freightliner FLD 1994 Fan 2310001056 2/TR28437PB
Freightliner FLD 1994 Fan 2310001031 2/TR28473PB
Freightliner FLD 1994 Fan 2310001044 2/TR28480PB
Freightliner FLD 1994 Fan 2310001030 2/TR28492PB
Freightliner FLD 1994 Alt. 2310001029 2/TR28501PB
Freightliner FLD 1993 Fan 2310001054 2/TR28429PB
Freightliner FLD 1993 Fan 2310001056 2/TR28437PB
Freightliner FLD 1993 Fan 2310001031 2/TR28473PB
Freightliner FLD 1993 Fan 2310001044 2/TR28480PB
Freightliner FLD 1993 Fan 2310001030 2/TR28492PB
Freightliner FLD 1993 Alt. 2310001029 2/TR28501PB
Freightliner FLD 1992 Fan 2310001054 2/TR28429PB
Freightliner FLD 1992 Fan 2310001056 2/TR28437PB
Freightliner FLD 1992 Fan 2310001031 2/TR28473PB
Freightliner FLD 1992 Fan 2310001044 2/TR28480PB
Freightliner FLD 1992 Fan 2310001030 2/TR28492PB
Freightliner FLD 1992 Alt. 2310001029 2/TR28501PB
International/Navistar 2500 1994 Fan 479329C1 2/TR28510PB
International/Navistar 2500 1993 Fan 479329C1 2/TR28510PB
International/Navistar 2500 1992 Fan 479329C1 2/TR28510PB
International/Navistar 2574 1995 Fan 479329C1 2/TR28510PB
International/Navistar 2600 1994 Fan 479329C1 2/TR28510PB
International/Navistar 2600 1993 Fan 479329C1 2/TR28510PB
International/Navistar 2600 1992 Fan 479329C1 2/TR28510PB
International/Navistar 2674 1995 Fan 479329C1 2/TR28510PB
International/Navistar 5000 Series 1993 Fan 488674C1 2/TR28492PB
International/Navistar 5000 Series 1992 Fan 488674C1 2/TR28492PB
International/Navistar 8100 1999 Fan 1686803 2/TR28473PB
International/Navistar 8100 1998 Fan 1686803 2/TR28473PB
International/Navistar 8100 1997 Fan 2/TR28473PB
International/Navistar 8100 1995 Fan 1686803C1 2/TR28473PB
International/Navistar 8100 1995 Fan 543042C1 2/TR28480PB
International/Navistar 8200 1997 Fan 2/TR28473PB
International/Navistar 8200 1995 Fan 1686803C1 2/TR28473PB
International/Navistar 8200 1995 Fan 543042C1 2/TR28480PB
International/Navistar 8200 1994 Fan 1686803C1 2/TR28473PB
International/Navistar 8200 1994 Fan 543042C1 2/TR28480PB
International/Navistar 8200 1993 Fan 1686803C1 2/TR28473PB
International/Navistar 8200 1993 Fan 543042C1 2/TR28480PB
International/Navistar 8200 1992 Fan 1686803C1 2/TR28473PB
International/Navistar 8200 1992 Fan 543042C1 2/TR28480PB
International/Navistar 8300 1994 Fan 1686803C1 2/TR28473PB
International/Navistar 8300 1994 Fan 543042C1 2/TR28480PB
International/Navistar 8300 1993 Fan 1686803C1 2/TR28473PB
International/Navistar 8300 1993 Fan 543042C1 2/TR28480PB
International/Navistar 8300 1992 Fan 1686803C1 2/TR28473PB
Page 2
Gates PowerBand Belts for Cummins N14 Applications
Equipment Make Equipment Model Equipment Year Application Description OEM Part Number
Gates PowerBand Part
Number
International/Navistar 8300 1992 Fan 543042C1 2/TR28480PB
International/Navistar 9200 1996 Fan 1686803C1 2/TR28473PB
International/Navistar 9200 1996 Fan 543042C1 2/TR28480PB
International/Navistar 9200 1996 Fan 488674C91 2/TR28492PB
International/Navistar 9600 1996 Fan 488674C1 2/TR28492PB
International/Navistar 9700 1996 Fan 488674C1 2/TR28492PB
International/Navistar 9800 1997 Fan 488674C1 2/TR28492PB
International/Navistar Paystar 1993 Fan 488674C1 2/TR28492PB
International/Navistar Paystar 1992 Fan 488674C1 2/TR28492PB
Kenworth K100 1993 Fan 2/TR28400PB
Kenworth K100 1993 Fan 134809 2/TR28492PB
Kenworth K100 1993 Fan 178597 2/TR28501PB
Kenworth K100 1992 Fan 2/TR28400PB
Kenworth K100 1992 Fan 134809 2/TR28492PB
Kenworth K100 1992 Fan 178597 2/TR28501PB
Kenworth T2000 2000 Hub & Fan 2/TR28411PB
Kenworth T2000 1999 Hub & Fan 2/TR28411PB
Kenworth T2000 1998 Hub & Fan 2/TR28411PB
Kenworth T2000 1997 Hub & Fan 2/TR28411PB
Kenworth T600 1996 Fan 2/TR28411PB
Kenworth T600 1996 Fan 28430 2/TR28429PB
Kenworth T600 1996 Fan 2/TR28437PB
Kenworth T600 1995 Fan 2/TR28411PB
Kenworth T600 1995 Fan 28430 2/TR28429PB
Kenworth T600 1995 Fan 2/TR28437PB
Kenworth T600 1994 Fan 2/TR28411PB
Kenworth T600 1994 Fan 28430 2/TR28429PB
Kenworth T600 1994 Fan 2/TR28437PB
Kenworth T600 1993 Fan 2/TR28411PB
Kenworth T600 1993 Fan 28430 2/TR28429PB
Kenworth T600 1993 Fan 2/TR28437PB
Kenworth T600 1992 Fan 2/TR28411PB
Kenworth T600 1992 Fan 28430 2/TR28429PB
Kenworth T600 1992 Fan 2/TR28437PB
Kenworth T800 1996 Fan 2/TR28411PB
Kenworth T800 1996 Fan 28430 2/TR28429PB
Kenworth T800 1996 Fan 2/TR28437PB
Kenworth T800 1995 Fan 2/TR28411PB
Kenworth T800 1995 Fan 28430 2/TR28429PB
Kenworth T800 1995 Fan 2/TR28437PB
Kenworth T800 1994 Fan 2/TR28411PB
Kenworth T800 1994 Fan 28430 2/TR28429PB
Kenworth T800 1994 Fan 2/TR28437PB
Kenworth T800 1993 Fan 2/TR28411PB
Kenworth T800 1993 Fan 28430 2/TR28429PB
Kenworth T800 1993 Fan 2/TR28437PB
Kenworth T800 1992 Fan 2/TR28411PB
Kenworth T800 1992 Fan 28430 2/TR28429PB
Kenworth T800 1992 Fan 2/TR28437PB
Kenworth W900 1996 Fan 2/TR28480PB
Kenworth W900 1996 Fan 2/TR28492PB
Kenworth W900 1995 Fan 2/TR28480PB
Kenworth W900 1995 Fan 2/TR28492PB
Kenworth W900 1994 Fan 2/TR28480PB
Kenworth W900 1994 Fan 2/TR28492PB
Kenworth W900 1993 Fan 2/TR28480PB
Kenworth W900 1993 Fan 2/TR28492PB
Mack R Series 1993 Fan 178624 2/TR28473PB
Mack R Series 1993 Fan 134809 2/TR28492PB
Mack R Series 1992 Fan 178624 2/TR28473PB
Mack R Series 1992 Fan 134809 2/TR28492PB
Mack RW Series 1993 Fan 178624 2/TR28473PB
Mack RW Series 1993 Fan 134809 2/TR28492PB
Mack RW Series 1992 Fan 178624 2/TR28473PB
Mack RW Series 1992 Fan 134809 2/TR28492PB
Page 3
Gates PowerBand Belts for Cummins N14 Applications
Equipment Make Equipment Model Equipment Year Application Description OEM Part Number
Gates PowerBand Part
Number
Peterbilt 357 1997 Fan 2/TR28480PB
Peterbilt 357 1996 Fan 2/TR28480PB
Peterbilt 357 1995 Fan 2/TR28480PB
Peterbilt 357 1994 Fan 2/TR28480PB
Peterbilt 362 1996 Fan 2/TR28480PB
Peterbilt 362 1996 Fan 134809 2/TR28492PB
Peterbilt 362 1995 Fan 2/TR28480PB
Peterbilt 362 1995 Fan 134809 2/TR28492PB
Peterbilt 362 1994 Fan 2/TR28480PB
Peterbilt 362 1994 Fan 134809 2/TR28492PB
Peterbilt 362 1993 Fan 2/TR28480PB
Peterbilt 362 1993 Fan 134809 2/TR28492PB
Peterbilt 362 1992 Fan 2/TR28480PB
Peterbilt 362 1992 Fan 134809 2/TR28492PB
Peterbilt 377 1999 Fan 2/TR28483PB
Peterbilt 377 1998 Fan 2/TR28483PB
Peterbilt 377 1997 Fan 2/TR28483PB
Peterbilt 377 1996 Fan 2/TR28483PB
Peterbilt 377 1995 Fan 2/TR28483PB
Peterbilt 377 1994 Fan 2/TR28480PB
Peterbilt 377 1994 Fan 2/TR28501PB
Peterbilt 377 1993 Fan 2/TR28480PB
Peterbilt 377 1993 Fan 2/TR28501PB
Peterbilt 377 1992 Fan 2/TR28480PB
Peterbilt 377 1992 Fan 2/TR28501PB
Peterbilt 378 1999 Fan 2/TR28483PB
Peterbilt 378 1998 Fan 2/TR28483PB
Peterbilt 378 1997 Fan 2/TR28483PB
Peterbilt 378 1996 Fan 2/TR28483PB
Peterbilt 378 1995 Fan 2/TR28483PB
Peterbilt 378 1994 Fan 2/TR28480PB
Peterbilt 378 1994 Fan 2/TR28501PB
Peterbilt 378 1993 Fan 2/TR28480PB
Peterbilt 378 1993 Fan 2/TR28501PB
Peterbilt 378 1992 Fan 2/TR28480PB
Peterbilt 378 1992 Fan 2/TR28501PB
Peterbilt 379 1999 Fan 2/TR28483PB
Peterbilt 379 1998 Fan 2/TR28483PB
Peterbilt 379 1997 Hub & Fan 2/TR28483PB
Peterbilt 379 1996 Fan 2/TR28483PB
Peterbilt 379 1995 Fan 2/TR28483PB
Peterbilt 379 1994 Fan 2/TR28480PB
Peterbilt 379 1994 Fan 2/TR28501PB
Peterbilt 379 1993 Fan 2/TR28480PB
Peterbilt 379 1993 Fan 2/TR28501PB
Peterbilt 379 1992 Fan 2/TR28480PB
Peterbilt 379 1992 Fan 2/TR28501PB
White GMC WG Series 1994 Fan 8003118 2/TR28483PB
White GMC WG Series 1993 Fan 8003118 2/TR28483PB
White GMC WIA Series 1995 Fan 8003118 2/TR28483PB
White GMC WIA Series 1994 Fan 8003118 2/TR28483PB
White GMC WIA Series 1993 Fan 8003118 2/TR28483PB
White GMC WIA Series 1992 Fan 8003118 2/TR28483PB
White GMC WIL Series 1994 Fan 8003118 2/TR28483PB
White GMC WIM Series 1994 Fan 8003118 2/TR28483PB
White GMC WIM Series 1993 Fan 8003118 2/TR28483PB
White GMC WIM Series 1992 Fan 8003118 2/TR28483PB
Per KB 12-20-04
Page 4