5-47
MAINTENANCE
EVERY 500 HOURS
4. Start the engine, and raise the lift arm until
the lift arm stopper (2) falls on the cylinder
rod.
5. Slowly lower the lift arms until the lift arm
stopper (2) hits against the edge of the
cylinder tube and becomes fixed, and then
stop the engine.
6. Insert the lock pin (3) in the front hole of
the lift arm stopper (2) and pass it through
under the cylinder rod to the back hole.
7. To prevent the lock pin (3) from falling off,
set the hook (5) at a right angle to the lock
pin.
8. Loosen the lock nuts (7) and fully screw in
the stopper bolts (8).
9. Start the engine, extend the bucket
cylinders to the maximum length, and then
stop the engine.
10. Adjust the plates (9) (right and left) and
the stopper bolt (8) so that each plate
evenly contacts with the stopper bolt.
11. Start the engine, retract the bucket
cylinders to the minimum length, and
then stop the engine.
12. Adjust the height of the stopper bolts (8)
so that they protrude 1 mm (2/3 turn),
and tighten them with the lock nuts (7).
Stopper bolt, lock nut:
.................................. ThreeBond #1324
Tightening torque:
............... Lock nut 416 N·m (306.7 ft-lb)