Vibration In Service-Stall Test; Propeller Shafts - Suzuki XL7 2007 Service Manual

0A-67 General Information:
Vibration in Service-Stall Test (Non-Torque
Sensitive)
Special tool
J 38792-A Electronic Vibration Analyzer (EVA) 2
CAUTION
!
Do not fill the propeller shaft with foam, oil,
or any other substance in order to correct a
vibration. Filling the propeller shaft is only
effective in reducing an unrelated condition
called Torsional Rattle. Filling the propeller
shaft should only be done in strict adherence
to the procedure outlined in corporate
bulletins that address Torsional Rattle.
Failure to follow the correct procedure will
induce a vibration and/or affect the structural
integrity of the propeller shaft. The propeller
shaft will then have to be replaced.
1. Turn the ignition ON but do not start the engine.
2. Place the transmission in NEUTRAL.
3. Raise and support the vehicle. Support the drive axle
or axles at curb height. Refer to "Lifting and Jacking
the Vehicle".
4. Remove the tire and wheel assemblies from the
vehicle. Refer to "Tire and Wheel Removal and
Installation: ".
5. Remove the brake rotors or drums, if equipped, from
the drive axle or axles.
6. Inspect the propeller shaft or shafts. All propeller
shafts should be free of undercoating before
continuing.
CAUTION
!
Do not depress the brake pedal with the
brake rotors and/or the brake drums
removed, or with the brake calipers
repositioned away from the brake rotors, or
damage to the brake system may result.
7. Have an assistant start the engine.
8. Place the transmission in the highest forward gear.
9. Accelerate and decelerate the vehicle through the
speed range at which the vibration was first noted
during the Vibration Analysis-Road Testing
procedure.
10. Record whether the vibration was present, and at
what speed.
11. If the vibration is present, determine which end of the
propeller shaft is vibrating the most. Hold the
vibration sensor of the J 38792-A Electronic
Vibration Analyzer (EVA) 2, up to the pinion nose
and the transmission or transfer case tailshaft
housing.
12. If the vehicle is equipped with a multiple-piece
propeller shaft, hold the vibration sensor of the J
38792-A up to the propeller shaft support bearing
assembly, or assemblies to inspect for vibration.
13. If the transmission or transfer case output shaft
housing is vibrating, hold the vibration sensor of the
J 38792-A up to the transmission crossmember
under the transmission mount. If there is no vibration
on the crossmember, then the transmission mount is
working properly.
14. Record which end of the propeller shaft is vibrating
the most, and how severe the vibration is. The
inspection will be a reference by which to judge
future progress.
Vibration in Service-Stall Test (Torque
Sensitive)
Special tool
J 38792-A Electronic Vibration Analyzer (EVA) 2
CAUTION
!
Do not fill the propeller shaft with foam, oil,
or any other substance in order to correct a
vibration. Filling the propeller shaft is only
effective in reducing an unrelated condition
called Torsional Rattle. Filling the propeller
shaft should only be done in strict adherence
to the procedure outlined in corporate
bulletins that address Torsional Rattle.
Failure to follow the correct procedure will
induce a vibration and/or affect the structural
integrity of the propeller shaft. The propeller
shaft will then have to be replaced.
1. Turn the ignition ON but do not start the engine.
2. Place the transmission in NEUTRAL.
3. Raise and support the vehicle. Support the drive axle
or axles at curb height. Refer to "Lifting and Jacking
the Vehicle".
4. Remove the tire and wheel assemblies from the
vehicle. Refer to "Tire and Wheel Removal and
Installation: ".
5. Remove the brake rotors or drums, if equipped, from
the drive axle or axles.
6. Hold the vibration sensor of the J 38792-A Electronic
Vibration Analyzer (EVA) 2, against the pinion nose.
CAUTION
!
Do not depress the brake pedal with the
brake rotors and/or the brake drums
removed, or with the brake calipers
repositioned away from the brake rotors, or
damage to the brake system may result.