Dynapac PL 500/20 S, Operation & Maintenance Manual

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F 22
F PL
500/
20S.
G
B 22
-74
- 04.
07
3.4 Milling section
Milling drum
The milling drum is bolted to the angle drive on the milling drum transmission. It is not
mounted in bearings on its right-hand side.
Dismantling milling drum
The milling drum is easy to dismantle for repair work, or for replacement of the tool,
e.g. when changing to a different drum width.
- Swivel right-hand chassis leg into its front position.
- Raise machine and secure to prevent it from lowering accidentally.
Ensure that the milling drum does not make contact with the ground.
Secure heavy components to prevent them from dropping accidentally. Use appropri-
ate restraining and lifting tackle!
- Remove side board (1) (A):
- Lower side board until it makes contact with the ground.
- Unscrew stop plate (2).
- Disconnect the cable sensor (3) if fitted.
- Remove the cables (4) used for raising and lowering the side board.
Eye bolts can be employed instead of cables for restraining and raising the side board
after removal.
- Remove guide bolts (5).
- Loosen cover (6) of milling drum box (B):
- Take off all fastening bolts (7).
- Unfasten cover from drive unit (C), (D):
- Insert special tool 503.02.02.64 (8) into both bores (9) in the cover
- Turn clockwise to release cover and milling drum from milling box.
- Remove drum from input shaft (E):
- Use a retaining or lifting device (lift truck, fork lift etc.) fit for the purpose to pull the
milling drum off the drive and out of the milling box.
Reassemble in reverse order. Ensure that fastening bolts are installed in the correct
order, are tightened to the correct torque and are kept clean!
$
During disassembly and assembly, ensure that the milling drum is not tilted but guid-
ed in as straight a line as possible!