SCHUNK TANDEM KSH plus, Assembly And Operating Manual

Page: 25 / 49

Troubleshooting
05.00|0489065 KSH plus, KSH-LH plus, KSH-F plus |en 25
Troubleshooting
Clamping block's chucks jaws don't move
Possible cause Remedial measures
Oil supply is interrupted or not enough
pressure
Check the hydraulic supply
Connections incorrectly connected Check connections (

5.2, Page 20)
Hydraulic connections that are not in use
are not closed
Check connections and close
Hydraulic connections that are in use are
closed
Check connections and open
Screw breakage on the chuck piston or
piston rod is broken (e.g. due to overload)
Disassemble clamping block and replace
damaged parts (

8.1, Page 26) or send to
SCHUNK for repair
The clamping block does not make a complete stroke
Possible cause Remedial measures
Chips or dirt between the covering strip
and base jaws
Unscrew the covering strip (item 7) and
remove chips and dirt
The clamping force is getting weaker
Possible cause Remedial measures
The clamping block is not tightly sealed Check connection and sealing screw fittings
and reseal or replace
Seals are damaged Disassemble clamping block (

8.1,
Page 26) and replace all the seals (see sealing
kit list (

9.1, Page 33) )
Inadequate lubrication Lubricate the lubrication nipples with LINO
MAX 200 (

8, Page 26)
The clamping block is jerky
Possible cause Remedial measures
Guide rollers on the sliding surfaces are
not greased
See chapter
(

8, Page 26)
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