Operation and maintenance manual

Section 130-0010
Drivelines - Front Drivelines
SM 1378 Rev 2 8-03
4
MAINTENANCE
Universal Joints
Every 500 Hours: Check the universal joints for wear
and replace if required.
Every 2 000 Hours: Check drivelines for leaks and
damage, and replace if required.
Periodic Inspection
Use a small pry bar to check the companion flange
yokes for looseness. If loose, drop one end of the
driveline and twist the yoke to check the backlash
between the splines and yokes. Replace any yoke that
does not fit snugly.
With the pry bar, check the universal joints for play. If
loose, replace the universal joints. Check the splines
at the slip joint and replace the yoke if excessively
worn.
SPECIAL TOOLS
There are no special tools required for procedures
outlined in this section. Refer to Section 300-0070,
SERVICE TOOLS, for part numbers of general service
tools and adhesives required. These tools and
adhesives are available from your dealer.
* * * *
SPECIAL TORQUE SPECIFICATIONS
TORQUE
FIG. NO. ITEM NO. ITEM NAME Nm lbf ft
1 4 Capscrew 154 113
1 5 Capscrew 154 113
1 6 Capscrew 154 113
DRIVELINE DIAGNOSIS CHART
CONDITION REASON REMEDY
Vibration or noise Driveline bent or out of balance Clean driveline in a suitable solvent. Inspect for
contact with adjacent parts. If driveline is
distorted or sprung, replace. If driveline does not
run smoothly, and vibration is felt, remove
driveline and dynamically balance the assembly.
Driveline loose at yoke/flange Check driveline mounting capscrews for
tightness. If loose, replace capscrews and
torque tighten to the proper specification.
Excessive wear of Poor yoke/flange alignment Check yoke/flange for alignment, run-out and
universal joints and/or run-out balance. Repair or replace as required.
Driveline imbalance Check to see if balance weights are missing or if
driveline is distorted. If driveline is distorted,
replace; if weights are missing, check balance of
driveline dynamically and rebalance.