Service Manual

Belt Tensioner, Refrigerant Compressor, Automatic ISB, ISBe and QSB (Common Rail [...]
Page 9-26 Section 9 - Drive Units - Group 09
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Install
CAUTION
The belt tensioner is spring-loaded and must be
pivoted away from the drive belt. Pivoting in the
wrong direction can result in damage to the belt
tensioner.
Lift and hold the belt tensioner.
Install the drive belt and release the tensioner.
NOTE: Due to the availability of different belt run
configurations, this procedure is meant to be generic.
Reference the application manufacturer's manuals for the
correct belt run.
Finishing Steps
WARNING
Batteries can emit explosive gases. To reduce the
possibility of personal injury, always ventilate the
compartment before servicing the batteries. To
reduce the possibility of arcing, remove the negative
(-) battery cable first and attach the negative (-)
battery cable last.
•
Install the belt guard, if equipped. Refer to
Procedure 008-001 (Belt Guard) in Section 8 of the
ISBe, ISB, and QSB (Common Rail Fuel System)
Service Manual, Bulletin 4021271, or Procedure
008-001 (Belt Guard) in Section 8 of the ISC, ISCe,
QSC8.3, ISL, ISLe3, ISLe4 and QSL9 Engines
Troubleshooting and Repair Manual, Bulletin
4021418.
•
Connect the battery. Refer to Procedure 013-009
(Battery Cables and Connections) in Section 13 of
the ISBe, ISB, and QSB (Common Rail Fuel
System) Service Manual, Bulletin 4021271, or
Procedure 013-009 (Battery Cables and
Connections) in Section 13 of the ISC, ISCe,
QSC8.3, ISL, ISLe3, ISLe4 and QSL9 Engines
Troubleshooting and Repair Manual, Bulletin
4021418.
Belt Tensioner, Refrigerant
Compressor, Automatic (009-053)
Initial Check
Check the tensioner arm, pulley, and stops for cracks.
If cracks are found, the tensioner must be replaced.