16-12.BOOK ASSEMBLY - REPLACE (Contd)
securing pivot pin (13) to boom hoist cylinder
(12).Discard locknut (15).
Support boom hoist cylinder (12). Remove pivot
pin (13) from boom assembly (8) and boom hoist
In step 4f, release hydraulic joystick
immediately after boom hoist cylinder
(12) to be removed has fully retracted. If
joystick is allowed to remain open, the
other cylinder will start to retract, putting
extreme stress on lifting equipment and
boom assembly (8).
Start engine and run at full throttle. Fully retract
boom hoist cylinder using joystick. Cylinder (12)
will retract very slowly. Stop engine.
Carefully lower cylinder (12) onto board placed
across vehicle deck so hydraulic line on cylinder
is not damaged.
Repeat steps 4d through 4g for other cylinder
PLACE JACKSTAND OR SUPPORT ON FRONT
OF VEHICLE DECK.ADJUST SUPPORT SO THAT
BOOM ASSEMBLY (8) WILL BE LEVEL WHEN
CAREFULLY LOWER BOOM ASSEMBLY (8) WITH
HOIST AND SLING UNTIL FRONT OF OUTER
BOOM SECTION IS ON JACKSTAND OR OTHER