MERLO PANORAMIC, User And Maintenance Manual

Page: 149 / 200

7 - PERIODIC SAFETY INSPECTIONS
7 - 11
Re-assemble the springs on the
pins, proceeding as follows:
-
Insert the spring (D) then screw in
the threaded bar (E).
- Insert on the threaded bar, in the
following order: the retainer nut (H)
of the spring, the washer (F) and
the nut (G).
- Screw on the nut (G) until the
retainer nut (H) is brought into
contact with the pin; screw on the
retainer nut (H) of the spring until it
is closed on the adjustment nut.
- Then remove the threaded bar (E),
the nut (H) and the spring (D) and put them back in the pouch.
Extend the telescopic boom completely, and place it parallel to the ground; measure the distance between the chains and the
lower surface of the second and third boom sections (make the measurement in mid-length of the chain).
Then retract the boom by about 50 cm and check that the distance measured previously has increased by about 5 cm; if not,
see point (b) of the section "INSPECTION OF THE CHAINS".
LUBRICATION OF CHAIN RETURN
PINS
While checking the telescopic boom
chains you are required to grease the
chain return pins.
Grease the chain return pins shown in
the photo (1) until grease comes out.
GREASING THE SUPPORT PIN OF
THE CHAIN RETURN PULLEY OF
THE INTERNAL BOOM CHAINS
-
stand at the rear right of the
machine
- raise the telescopic boom until the
greasing hole "A" can be seen
- grease, until grease comes out,
the support pin of the internal
boom "B" chain return pulley