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© 2010 Bakker Hydraulic Products B.V.
Nijverheidsweg 6
6662 NG Elst (Gld) The Netherlands
Tel : + 31 481 374757 Fax : + 31 481 375280
Site :
E-mail :
Reassembling the cylinder :
Assemble the cylinder parts in the reverse order to which you dismantled
them.
N.B.:
When mounting the head bush, you must use Loctite type 243 or a
comparable locking agent.
3. MAINTENANCE AND REPAIR
- Check the hoisting hook visually once a year, and test the hook once
every 4 years with an 6500 kg load divided into 4000 kg per hook.
- Test the non-return valve once a year to ensure that it is working
properly.
- Check pins and bushes every year for slack (maximum 0.8 mm).
- If the exchangeable blades are worn, they must be replaced by new
blades (maximum 25 mm per blade edge).
- Regularly grease the pivots (steady link, cylinder suspension and pins)
to prevent penetration of sand, dirt, etc.
- After 20 working hours, check all bolted connections and tighten if
necessary.
Caution!
With all maintenance activities on the grab bucket, the grab bucket must
be non-operational and stationed on the ground.
4. TROUBLESHOOTING
Problem :
Load is no longer held.
Possible causes :
- Non-return valve and/or seals
- Piston seals worn
-
External leakage’s to cylinder tube
Tips for tracing faults :
- The cylinder may not display any external leakage
’s. If it does,
check that the head bush is tight. If the head bush is loose,
the seals must be replaced.
