Replacing Packer Roller Cylinder Seals - DAL-BO MaxiDisc Manual

Replacing packer roller cylinder seals

Fig.24
1. Empty the oil from the cylinder by moving the cylinder back and forth.
2. Move the piston into the middle position. Unscrew the gland (pos. 3) from
3. Remove the locking nut which holds the sleeve (pos. 4).
4. Pull the sleeve (pos. 4) off the piston rod (pos. 2).
5. Pull the gland (pos. 3) off the piston rod (pos. 2).
6. Remove the seals from the gland and the sleeve (pos. 5+6+7+8+9).
7. Clean all parts thoroughly. Check for filings, shavings, burrs and make
Assembly
1. Assemble the new seals into the gland and the sleeve (pos. 5+6+7+8+9).
2. Lubricate the screw threads on the gland (pos. 3) and the cylinder casing
3. Place the gland (pos. 3) onto the piston rod.
4. Mount the sleeve (pos. 4) and screw on the self-locking nut with Loctite.
5. Lubricate the outermost seal on the sleeve which has contact with the cyl-
6. Fit the gland onto the cylinder casing and tighten.
7. Mount the cylinder.
8. Attach the hoses. Make sure that the hoses are not caught or squeezed in
Side 32
Cylinder 80/40-350
the cylinder casing (pos. 1). A special tool is needed to remove the gland.
If the gland is stuck, it may help to warm up the very front of the socket.
When the gland has been unscrewed, pull the piston out towards the gland.
Pull the piston rod out of the cylinder casing (pos. 1).
sure that there is no rust around the scraper ring (pos. 5) in the gland. If
this is the case, it must be removed.
(pos. 1).
Make sure that the screw threads are completely clean and free from oil or
other impurities before using Loctite. Do not refill the oil for the first 12
hours after the application of Loctite.
inder casing and the inside of the cylinder casing with oil, then guide the
piston into the middle position.
any way and that the connections are airtight.
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