MAX
MIN
5
2
3
4
1
2
2
C
2
C
2
1
(g.55/D)
(g.56/D)
ROTATION REDUCTION GEAR WITH OIL LEVEL ROD
Checking the oil level.
While the machine is being used, the rotation reduction gear
oil heats up and increases its volume. Therefore, check the le-
vel when the temperature is close to the ambient temperature.
To check the oil level, proceed as follows:
- Place the machine on a at and level surface.
- Switch off the engine and remove the ignition key.
Place a “maintenance work in progress” sign in the cab.
- Raise the boom as far as possible and install the safety rod.
- Disassemble the guard protecting the rotating parts
(g.55/D Pos.“1”) by unscrewing the four sealing screws
(g. 55/D Pos.“2”).
- Unscrew the cap (g.56/D Pos.“1”), clean the rod with a
cloth that does not leave any residues and then re-screw
in its housing.
- Unscrew the cap again (g.56/D Pos.“1”) and check the
oil level on the graded rod (g.56/D Pos. 2”).
- If the level is below minimum (fig.56/D Pos. “4”) (MIN)
top up through the cap hole (fig.56/D Pos.“1”) until the
oil reaches the correct level (fig.56/D Pos.“3”) (MAX).
- Reverse the procedure to reinstall all the parts.
Changing the oil in the rotation reduction gear
Replace the oil at the prescribed times as follows:
- Place the machine on a at and level surface.
- Switch off the engine and remove the ignition key. Place
a “maintenance work in progress” sign in the cab.
- Raise the boom as far as possible and install the safety rod.
- Disassemble the guard protecting the rotating parts
(g.55/D Pos.“1”) by unscrewing the four sealing screws
(g.55/D Pos.“2”).
- Place a suitably sized container below the reduction
gear to collect any oil that may leak during the replace-
ment procedure.
- Remove the drain plug (fig 56/D Pos.“5”) and the filler
cap (g.56/D Pos.“1”) to speed up the operation.
- When you have finished draining the oil, reinsert the
drain plug (g.56/D Pos.“5”) and fasten tightly.
- Fill the reduction gear through the filler cap hole
(g.56/D Pos.“1”) with an approved oil to the correct le-
vel (g.56/D Pos.“3”) (MAX).
- Reverse the procedure to reinstall all the parts.
- CAUTION:
In some machines, rotation reduction gears with “zero
maintenance” are installed. It is not necessary to check
the oil level or replace the oil on these machines.