Section 3 • Scheduled Maintenance Procedures
August 2016
Part No. 218567
AL4 • AL4000
3 - 31
D-3
Perform Coupler Maintenance
Coupler specifi cations require that this procedure
be performed annually.
Maintaining the coupler in good condition is
essential to safe operation and good performance.
Coupler failure could result in a machine tip-over
during transport, and component damage may
also result if problems are not discovered and
repaired in a timely fashion.
1 Check coupler welds and mounting bolt torque.
Torque the fasteners to 35 ft-lbs / 48 Nm.
Result: 1.5 full threads of the locking bolt must
be exposed beyond the lock nut after the
adjustment.
2 Apply automotive grease to the coupler ball
pocket.
3 Oil coupler pivot points using SAE 30 motor oil.
CHECKLIST D PROCEDURES
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