DALBO MINIMAX 950, User Instructions

Page: 35 / 44

MINIMAX
Page 35
Change the gaskets on the tilt cylinder
Fig. 28
1.
The cylinder is emptied of oil by moving the piston carefully back and
forth.
2. Move the piston into the centre position, after which the end cap (pos. 3)
is unscrewed from the cylinder tube (pos. 1). A special tool must be used
to remove the cap. If the cap is stuck, it may help to warm up the front of
the cap. Once the cap has been unscrewed from the cylinder tube, pull
the piston towards the cap, after which the piston rod can be removed
from the cylinder tube (pos. 1).
3. The lock nut (pos. 10) that is holding the sleeve (pos. 4) is dismounted.
4. The sleeve (pos. 4) is removed from the piston rod (pos. 2).
5. The cap (pos. 3) is removed from the piston rod (pos. 2).
6. The seals in the cap (pos. 5+6+7+8+9) as well as the sleeve are removed.
7. All parts are checked for chips, burrs etc. Check for rust around the
scraper ring (pos. 5) in the cap. If this is the case, remove it.
Mounting
1. New seals (pos. 5+6+7+8+9) are fitted in the cap and the sleeve.
2. The thread on the cap (pos. 3) and the cylinder tube (pos. 1) are lubricat-
ed with oil.
3. The cap (pos. 3) is mounted on the piston rod.
4. The sleeve (pos. 4) is mounted and the lock nut is screwed and secured
with Loctite . Make sure the thread is completely clean and free of oil and
other impurities before using Loctite. Do not fill the oil within 12 hours
of using Loctite.
5. Lubricate the outermost seal on the part of the sleeve in contact with the
cylinder tube as well as lubricating the innermost cylinder tube with oil
and then push the piston into the centre position.
6. The cap is mounted on the cylinder tube and tightened.
7. To mount the cylinder, refer to “ Changing the tilt cylinder ”.