Suzuki XL7 2007 Service Manual page 1204

3D-17 Propeller Shafts:
• The front working angle (1) is formed by the
intersection of the transmission or transfer case
output shaft and the prop shaft.
• The rear working angle (2) is formed by the
intersection of the prop shaft and the drive axle pinion.
NOTE
When measuring and evaluating U-joint
working angles, observe the following:
• No U-joint working angle should be equal to zero. An
angle of 0 degrees will cause premature U-joint wear
due to a lack of rotation of the needle bearings in the
U-joint.
• No U-joint working angle should exceed 4 degrees.
• Prop systems containing only 1 U-joint: The U-joint
working angle should be within the range specified in
this procedure.
• Prop systems containing 2 or 3 U-joints: The 2 U-joint
angles each formed with the prop shaft that contains 2
welded yokes are designed to cancel each other
during operation. These 2 working, or cancelling U-
joint angles should be equal to each other within the
range specified in this procedure provide effective
cancellation of the U-joints.
• Prop systems containing 3 U-joints: The U-joint angle
formed by the prop shaft that contains only 1 welded
yoke is an odd, or non-cancelled angle. This working
angle should be within the range specified in this
procedure.
• Always orientate the J 23498-A so that it faces the
same side of the vehicle for each measurement taken.
• Be sure to accurately record the measurements taken
on a diagram, similar to the one shown.
Measurement Procedure
NOTE
If it is necessary to use the J 23498-20, or
equivalent adapter, first verify the accuracy
of the J 23498-20, or equivalent by inspecting
the angle of an accessible joint using the J
23498-A, or equivalent, then inspecting the
same joint angle using the J 23498-20, or
equivalent.
1. For vehicles with solid axles, ensure that the vehicle
has a full tank of fuel or the equivalent amount of
weight in the correct location to simulate a full tank.
The weight of 3.8 L (1 gal) of gasoline is
approximately 2.8 kg (6.2 lb).
2. Raise and support the vehicle. On vehicles with solid
axles, ensure that the drive axle is supported at ride
height—vehicle body supported by suspension
components. Suspension travel will not affect
driveline angles on vehicles with direct-mounted
drive axles. Ensure the wheels are free to rotate.
Refer to "Lifting and Jacking the Vehicle: ".
3. For vehicles with 2-piece prop shaft systems, inspect
the lateral alignment of the propeller shafts before
proceeding:
a. From underneath the propeller shafts, look down
the length of the shafts from front to rear. Inspect
the alignment of the shafts to each other.
b. From underneath the shafts, if the propeller
shafts are not aligned to each other in a straight
line, then the lateral alignment of the prop shafts
needs to be adjusted before proceeding.
The propeller shaft support bearing assembly
can be relocated slightly to one side in order to
improve the alignment of the shafts. Ensure that
you do not create a ground-out condition against
the exhaust or any other component.
4. Place the transmission in NEUTRAL.
5. Clean any corrosion or foreign material from the U-
joint bearing caps.
6. Remove any of the U-joint bearing cap snap rings
that may interfere with the correct placement of the J
23498-A, or equivalent.